CN110739184B

CN110739184B - Quick response relay

Info

Publication number: CN110739184B
Application number: CN201910992470.3A
Authority: CN
Inventors: 周刚
Original assignee: Chengdu Alganlei Insulated Socket Manufacturing Co ltd
Current assignee: Chengdu Alganlei Insulated Socket Manufacturing Co ltd
Priority date: 2019-09-09
Filing date: 2019-10-18
Publication date: 2022-04-15
Anticipated expiration: 2039-10-18
Also published as: CN110739184A

Abstract

The invention discloses a quick-response relay which comprises a base, wherein an electromagnet is arranged on the base, a support frame is arranged on the side surface of the electromagnet, and a transmission part is arranged at the top of the support frame; the transmission part can freely rotate around the joint of the support frame and the transmission part, and one end or two ends of the transmission part are provided with conduction contacts. Through setting up rotatable driving medium, can all set up at the both ends of driving medium and switch on the contact, through rotating the displacement who comes the extension to switch on the contact, and then can improve the distance that switches on between contact and the electrode, improve the operating voltage of relay. By arranging the device, the distance from the electromagnet to the soft iron can be reduced, and the input current of the coil is reduced; the distance between the conductive contacts can be increased, the withstand voltage value of the relay is improved, and the parasitic capacitance of the relay is reduced.

Description

Quick response relay

Technical Field

The invention relates to a relay, in particular to a quick-response relay.

Background

A relay is an electric control device that generates a predetermined step change in a controlled amount in an electric output circuit when a change in an input amount (excitation amount) meets a predetermined requirement. It has an interactive relationship between a control system (also called an input loop) and a controlled system (also called an output loop). It is commonly used in automated control circuits, which are actually a "recloser" that uses low current to control high current operation. Therefore, the circuit plays the roles of automatic regulation, safety protection, circuit conversion and the like.

The existing relays all adopt an electromagnet to control the movement of a switching device, and then the on-off of a conductive contact is controlled. Because the attraction force of the iron core magnetic field of the electromagnet is inversely proportional to the square of the distance from the electromagnet to the soft iron, the closer the soft iron is, the stronger the magnetic force of the electromagnet is; the distance from the electromagnet to the soft iron is equal to the distance between the conductive contacts; when the distance between the conductive contacts is too close, a larger parasitic capacitance is formed between the contacts, the alternating current is easy to be conducted in a spaced mode when the alternating current is conducted, and the conductive contacts are easy to break down when a larger voltage is conducted; if the distance between the conductive contacts is too large, although the parasitic capacitance is reduced and the breakdown voltage is increased, the magnetic field attraction of the iron core of the electromagnet is inversely proportional to the square of the distance to the soft iron, so that a larger distance requires a larger driving current to drive the electromagnet, and thus more electric energy is consumed and more heat is generated.

Disclosure of Invention

The invention aims to: aiming at the existing problems, the device is provided with the relay with quick response, so that the distance from the electromagnet to the soft iron can be reduced, and the input current of the coil is reduced; meanwhile, by arranging the device, the distance between the conductive contacts can be increased, the withstand voltage value of the relay is improved, and the parasitic capacitance of the relay is reduced.

The technical scheme adopted by the invention is as follows:

a fast response relay, characterized by: the device comprises a base, wherein an electromagnet is arranged on the base, a support frame is arranged on the side surface of the electromagnet, and a transmission part is arranged at the top of the support frame; the transmission part can freely rotate around the joint of the support frame and the transmission part, and one end or two ends of the transmission part are provided with conduction contacts. Through setting up rotatable driving medium, can all set up at the both ends of driving medium and switch on the contact, through rotating the displacement who comes the extension to switch on the contact, and then can improve the distance that switches on between contact and the electrode, improve the operating voltage of relay.

Furthermore, the invention also discloses a preferable structure of the quick-response relay, wherein a soft iron sheet is fixedly arranged at the bottom of the transmission part, and the bottom of the soft iron sheet is rotationally connected with the top of the support frame; when the electromagnet is electrified, the soft iron sheet can be driven to rotate around the top of the supporting frame. The soft iron sheet can be matched with the electromagnet, the electromagnet can be magnetized and attract the soft iron sheet when being electrified, and then the soft iron sheet can drive the movement of the transmission part, so that the on-off work of the relay is realized.

Furthermore, the one end of soft iron piece is connected with elasticity resetting means, and elasticity resetting means's one end sets up in the one end of soft iron piece, and elasticity resetting means's other end fixed connection and support frame or base are on, work as when the electro-magnet cuts off the power supply, elasticity resetting means drive soft iron piece rotates round the top of support frame, and the soft iron piece leaves the one end of electro-magnet. The elastic reset device can reset the relay to an initial state, and when the electromagnet is not electrified, the transmission part can be restored to the original state, and the relay is disconnected.

Furthermore, the transmission part comprises a top plate, the bottom of the top plate is fixedly connected with the soft iron sheet, a first extension arm and a second extension arm are arranged at two ends of the top plate, and the first extension arm, the second extension arm and the top plate are perpendicular to each other; the first extension arm is provided with a first conducting contact; and a second conducting contact is arranged on the second extension arm. Set up first extension arm, second extension arm through the both sides at the roof, first extension arm, second extension arm can enlarge the terminal rotation displacement of driving medium, and when the roof rotated less distance under the drive of electro-magnet, the displacement distance of first extension arm, second extension arm was greater than the displacement distance of roof to electro-magnet, just so can improve the operating voltage of relay.

Further, the support frame includes the horizontal part that links to each other with the base is fixed, and the one end of horizontal part is connected with the supporting part perpendicular with the horizontal part, and the top of supporting part with be provided with support connecting portion, support connecting portion and soft iron sheet rotate and link to each other. The support frame is used for supporting the transmission piece and enabling the transmission piece to rotate freely.

Further, a shell is arranged on the base; the base or the shell is provided with a first electrode, the first electrode and the first conducting contact are arranged oppositely, and when the electromagnet is electrified, the first conducting contact is contacted with the first electrode and is electrified; when the electromagnet is de-energized, the first conductive contact and the first electrode are separated and the power supply is disconnected. The first electrode and the first conducting contact can be used for switching on and off a plurality of groups of electrodes.

Further, a second electrode is arranged on the base or the shell, and the second electrode and the second conducting contact are arranged oppositely; when the electromagnet is electrified, the second electrode is in contact with the second conducting contact and is electrified; when the electromagnet is powered off, the second electrode is separated from the second conducting contact and the power supply is disconnected. The second electrode and the second conducting contact can be used for switching on and off a plurality of groups of electrodes.

Furthermore, the support frame is made of soft iron and used for conducting a magnetic field and improving the attraction force of the electromagnet. When the electromagnet is electrified, the generated magnetic field can be conducted along the support frame.

Further, the electro-magnet includes the magnetic core, and on the magnetic core was fixed in the horizontal part of support frame, the magnetic core periphery cover was equipped with the coil, and the both ends of coil extended to outside the base through the conducting strip. When the coil is electrified, a magnetic field is generated in the coil, the magnetic field starts from the magnetic core, extends downwards to the horizontal part of the supporting frame, then is conducted to the supporting part of the supporting frame, then enters the soft iron sheet, and the magnetic field enters the magnetic core through the soft iron sheet to form a closed loop. The magnetic core, the supporting frame and the soft iron sheet are made of magnetic conductive materials, so that the energy efficiency of the electromagnet can be greatly improved.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:

1. by arranging the device, the distance from the electromagnet to the soft iron can be reduced, and the input current of the coil is reduced;

2. through setting up this device, can increase the distance between the conductive contact, improve the withstand voltage value of relay, reduce the parasitic capacitance of relay.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic cross-sectional view of the present invention;

FIG. 4 is a schematic illustration of an explosive structure according to the present invention;

FIG. 5 is a schematic view of the transmission member of the present invention;

the labels in the figure are: 1 is a shell, 3 is a base, 4 is a transmission member, 5 is a soft iron sheet, 6 is a support frame, 7 is a support connecting portion, 8 is a spring, 9 is a first conducting contact, 10 is a first electrode, 11 is a magnetic core, 12 is a coil, 13 is a second conducting contact, 14 is a second electrode, 15 is a spring connecting head, 16 is a spring connecting hook, 401 is a top plate, 402 is a first extension arm, and 403 is a second extension arm.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1 to 5, the present invention includes a base 3, a support frame 6 is disposed on the base 3, the support frame 6 is L-shaped, a lower half portion of the support frame 6 is a horizontal portion, one end of the horizontal portion is connected with a support portion perpendicular to the horizontal portion, a support connection portion 7 is disposed at a top end of the support portion, and the support connection portion 7 is rotatably connected with a soft iron sheet 5.

The horizontal part is provided with an electromagnet. The electro-magnet includes magnetic core 11, and on magnetic core 11 was fixed in the horizontal part of

support frame

6, 11 periphery covers of magnetic core are equipped with coil 12, and the both ends of coil 12 are passed through the conducting strip and are extended outside base 3.

The bottom of the transmission piece 4 is fixedly provided with a soft iron sheet 5, and the bottom of the soft iron sheet 5 is rotatably connected with the top of the support frame 6; when the electromagnet is electrified, the soft iron sheet 5 can be driven to rotate around the top of the support frame 6. The soft iron sheet 5 can be matched with the electromagnet, the electromagnet can be magnetized and attract the soft iron sheet 5 when being electrified, and the soft iron sheet 5 can further drive the transmission part 4 to move, so that the on-off work of the relay is realized.

The top of the soft iron sheet 5 is provided with a transmission piece 4. One end of the soft iron sheet 5 is provided with a fixing groove, the fixing groove is connected with an elastic reset device, and the elastic reset device is a spring. The fixing groove at one end of the soft iron sheet 5 is a spring connecting hook 16. One end of the spring is arranged on the spring connecting hook 16 at one end of the soft iron sheet 5, and the other end of the spring is fixedly connected with the supporting frame 6 or the base 3. A spring connector 15 is arranged on the supporting part of the supporting frame 6, and the spring connector 15 is fixedly connected with the other end of the spring.

When the electromagnet is powered off, the elastic resetting device drives the soft iron sheet 5 to rotate around the top of the supporting frame 6, and the soft iron sheet 5 leaves one end of the electromagnet. The elastic reset device can reset the relay to an initial state, and when the electromagnet is not electrified, the transmission part 4 can be restored to the original state to disconnect the relay.

The transmission member 4 is n-shaped, the transmission member 4 comprises a top plate 401, the bottom of the top plate 401 is fixedly connected with the soft iron sheet 5, a first extension arm 402 and a second extension arm 403 are arranged at two ends of the top plate 401, and the first extension arm 402 and the second extension arm 403 are perpendicular to the top plate 401; the first extension arm 402 is provided with a first conducting contact 9; the second extension arm 403 is provided with a second conductive contact 13. By arranging the first extension arm 402 and the second extension arm 403 on two sides of the top plate 401, the first extension arm 402 and the second extension arm 403 can amplify the rotation displacement of the tail end of the transmission member 4, and when the top plate 401 rotates a small distance under the driving of the electromagnet, the moving distance of the first extension arm 402 and the second extension arm 403 is greater than the moving distance from the top plate 401 to the electromagnet, so that the working voltage of the relay can be improved.

The base 3 is provided with a shell 1; a first electrode 10 is arranged on the base 3 or the shell 1, the first electrode 10 is arranged opposite to the first conducting contact 9, and when the electromagnet is electrified, the first conducting contact 9 is in contact with the first electrode 10 and is electrified; when the electromagnet is de-energized, the first conducting contact 9 and the first pole 10 are separated and the power supply is disconnected. The first electrode 10 and the first conducting contact 9 can be used for switching on and off several groups of electrodes.

A second electrode 14 is arranged on the base 3 or the housing 1, and the second electrode 14 is arranged opposite to the second conducting contact 13; when the electromagnet is energized, the second electrode 14 is in contact with the second conducting contact 13 and is energized; when the electromagnet is de-energized, the second pole 14 is separated from the second conducting contact 13 and the power supply is disconnected. The second electrode 14 and the second conducting contact 13 can be used for switching on and off a plurality of groups of electrodes.

The support frame 6 is made of soft iron and is used for conducting a magnetic field and improving the attraction of the electromagnet. When the electromagnet is powered on, the generated magnetic field can be conducted along the support frame 6.

When the coil 12 is electrified, a magnetic field is generated in the coil, the magnetic field starts from the magnetic core 11, extends downwards to the horizontal part of the supporting frame 6, then is conducted to the supporting part of the supporting frame 6, then enters the soft iron sheet 5, and the magnetic field enters the magnetic core 11 through the soft iron sheet 5 to form a closed loop. The magnetic core 11, the support frame 6 and the soft iron sheet 5 are made of magnetic conductive materials, so that the energy efficiency of the electromagnet can be greatly improved.

In particular, during use, the first electrode 10 and the second electrode 14 are connected to a power supply, and the coil 12 is connected to a control circuit.

In the specific operation process, the coil 12 is electrified, the coil 12 generates a magnetic field, the magnetic field enters the support frame 6 through the magnetic core 11, the support frame 6 conducts the magnetic field upwards until the magnetic field enters the soft iron sheet 5, the soft iron sheet 5 is magnetized, attraction force is generated between the soft iron sheet 5 and the magnetic core 11, and the magnetic core 11 pulls the soft iron sheet 5 to be matched with the soft iron sheet. The soft iron sheet 5 drives the transmission member 4 to rotate. The first conductive contact 9 on the transmission member 4 is engaged with the first electrode 10; the second conducting contact 13 on the transmission member 4 is matched with the second electrode 14, and the circuit is conducted.

When the coil 12 is de-energized, the magnetic field generated by the coil 12 disappears; the magnetic field in the supporting frame 6 disappears, and the soft iron sheet 5 is demagnetized. The soft iron sheet 5 is separated from the magnetic core 11 under the driving of the spring 8. The soft iron sheet 5 drives the transmission member 4 to rotate. The first conductive contact 9 on the transmission member 4 is separated from the first electrode 10; the second conductive contact 13 on the actuator 4 is separated from the second electrode 14 and the circuit is open.

Therefore, by arranging the device, the distance from the electromagnet to the soft iron can be reduced, and the input current of the coil is reduced; the distance between the conductive contacts can be increased, the withstand voltage value of the relay is improved, and the parasitic capacitance of the relay is reduced.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A fast response relay, characterized by: the device comprises a base (3), wherein an electromagnet is arranged on the base (3), a support frame (6) is arranged on the side surface of the electromagnet, and a transmission part (4) is arranged at the top of the support frame (6); the transmission piece (4) can freely rotate around the connection part of the support frame (6) and the transmission piece (4); the transmission piece (4) is n-shaped, the transmission piece (4) comprises a top plate (401), a first extension arm (402) and a second extension arm (403) are arranged at two ends of the top plate (401), and the first extension arm (402) and the second extension arm (403) are perpendicular to the top plate (401); a first conducting contact (9) is arranged on the first extension arm (402); a second conducting contact (13) is arranged on the second extension arm (403); when the top plate (401) is driven to rotate by the electromagnet, the moving distance of the first extension arm (402) and the second extension arm (403) is larger than the moving distance from the top plate (401) to the electromagnet.

2. A rapid response relay according to claim 1, wherein: the bottom of the top plate (401) is fixedly connected with the soft iron sheet (5), and the bottom of the soft iron sheet (5) is rotatably connected with the top of the support frame (6); when the electromagnet is electrified, the soft iron sheet (5) can be driven to rotate around the top of the support frame (6).

3. A rapid response relay according to claim 2, wherein: the one end of soft iron piece (5) is connected with elasticity resetting means, and elasticity resetting means's one end sets up in the one end of soft iron piece (5), and elasticity resetting means's other end fixed connection is worked as on electro-magnet outage, and elasticity resetting means drive soft iron piece (5) rotates round the top of support frame (6), and soft iron piece (5) leave the one end of electro-magnet on support frame (6).

4. A rapid response relay according to claim 3, wherein: the supporting frame (6) comprises a horizontal part fixedly connected with the base (3), one end of the horizontal part is connected with a supporting part vertical to the horizontal part, the top end of the supporting part is provided with a supporting connecting part (7), and the supporting connecting part (7) is rotatably connected with the soft iron sheet (5).

5. A fast response relay according to claim 4, wherein: the base (3) is provided with a shell (1); a first electrode (10) is arranged on the base (3) or the shell (1), the first electrode (10) is arranged opposite to the first conducting contact (9), and when the electromagnet is electrified, the first conducting contact (9) is contacted with the first electrode (10) and is connected with a power supply; when the electromagnet is de-energized, the first conducting contact (9) and the first pole (10) are separated and the power supply is disconnected.

6. A rapid response relay according to claim 4 or 5, wherein: a second electrode (14) is arranged on the base (3) or the shell (1), and the second electrode (14) is opposite to the second conducting contact (13); when the electromagnet is electrified, the second electrode (14) is in contact with the second conducting contact (13) and is powered on; when the electromagnet is de-energized, the second pole (14) is separated from the second conducting contact (13) and the power supply is disconnected.

7. A rapid response relay according to claim 6, wherein: the support frame (6) is made of soft iron and used for conducting a magnetic field and improving the attraction of the electromagnet.

8. A rapid response relay according to claim 7, wherein: the electro-magnet includes magnetic core (11), and on magnetic core (11) were fixed in the horizontal part of support frame (6), magnetic core (11) periphery cover was equipped with coil (12), and the both ends of coil (12) are passed through the conducting strip and are extended outside base (3).