CN214588651U

CN214588651U - Relay with magnetic holding structure

Info

Publication number: CN214588651U
Application number: CN202120590989.1U
Authority: CN
Inventors: 岳秀峰; 陈飞勇; 周南; 周义; 盘德波
Original assignee: Shenzhen Golden Dianke Co ltd
Current assignee: Shenzhen Golden Dianke Co ltd
Priority date: 2021-03-23
Filing date: 2021-03-23
Publication date: 2021-11-02
Anticipated expiration: 2031-03-23

Abstract

The utility model discloses a magnetic latching structure relay, include: a relay body; the relay body includes: the machine body comprises a machine body base, a permanent magnet, a yoke, an iron core, a coil, a movable reed assembly, a normally open end pin and a normally closed end pin; the iron core is fixed on the base of the machine body, the coil is arranged outside the iron core in a surrounding mode, and the permanent magnet is fixedly arranged above the iron core; the coil comprises coil pins at two ends of the coil; the yoke iron is fixed on the side part of the iron core, and one end of the yoke iron is positioned on the top of the permanent magnet; the movable reed component comprises a movable contact; the normally open end pin and the normally closed end pin are inserted and fixed on the machine body base along the horizontal direction, and the movable contact is arranged between the normally open end pin and the normally closed end pin. After the iron core is magnetized by introducing forward direct current pulse voltage, the closed state of the movable contact can be kept unchanged by the magnetic force of the permanent magnet connected with the iron core, the coil does not need to be electrified continuously, and the energy consumption is greatly reduced.

Description

Relay with magnetic holding structure

Technical Field

The utility model relates to a relay field, concretely relates to magnetic latching structure relay.

Background

A Relay (Relay), also called Relay, is an electronic control device having a control system (also called input loop) and a controlled system (also called output loop), usually applied in an automatic control circuit, which is actually an "automatic switch" that uses a smaller current to control a larger current. Therefore, the circuit plays the roles of automatic regulation, safety protection, circuit conversion and the like.

With the increase of the competition of the relay industry, the economical economy becomes the first factor of the survival and development of enterprises, so that the high-energy-consumption products cannot meet the modern production requirements. The conventional relay needs to be continuously electrified to maintain a closed state, so that the energy consumption is high, the temperature rise is high, and the service life of the relay is easily influenced; and the malfunction is easy to be out of control due to the unstable working voltage, and the working stability is poor.

SUMMERY OF THE UTILITY MODEL

For overcoming the not enough of prior art, the utility model aims to provide a magnetic latching structure relay, it can solve current relay and need last circular telegram in order to maintain the closure state to lead to the problem that the energy consumption is high and stability is low.

The utility model discloses a following technical scheme realizes:

a magnetic retention structure relay comprising: a relay body; the relay body includes: the machine body comprises a machine body base, a permanent magnet, a yoke, an iron core, a coil, a movable reed assembly, a normally open end pin and a normally closed end pin; the iron core is fixed on the machine body base, the coil is arranged outside the iron core in a surrounding mode, and the permanent magnet is fixedly installed at the top of the iron core; the coil comprises coil pins at two ends of the coil; the yoke iron is fixed on the side part of the iron core, and one end of the yoke iron is positioned at the top of the permanent magnet; the movable spring component and the yoke iron can move relatively, and the movable spring component is positioned on the side part of the yoke iron; the movable reed assembly comprises a movable contact; normally open the end foot with normally closed end foot is pegged graft along the horizontal direction and is fixed on the organism base, movable contact locates normally open the end foot with between the normally closed end foot to it is closed in the contact normally open the end foot with switch between the state of normally closed end foot.

Further, the movable spring assembly comprises: armature, push-piece, reed and movable contact; the armature is arranged on the side part of the yoke iron; the push sheet is horizontally arranged, one end of the push sheet is fixedly connected with the armature, and the other end of the push sheet is fixedly connected with the reed; the bottom end of the reed is fixedly inserted on the machine body base, the top end of the reed is fixedly connected with the push sheet, and the movable contact is fixedly arranged at the push sheet connecting end of the reed.

Furthermore, the armature is L-shaped, the bottom of the armature is horizontally arranged in the machine body base, and the side part of the armature is arranged on one side of the yoke.

Furthermore, the bottom end of the normally open terminal pin is inserted and fixed on the machine body base, and the top end of the normally open terminal pin is fixedly provided with a normally open contact; the bottom end of the normally closed terminal pin is inserted and fixed on the machine body base, and the top end of the normally closed terminal pin is fixedly provided with a normally closed contact; the movable contact is located between the normally open contact and the normally closed contact.

Further, the magnetic latching structure relay further comprises a small yoke iron; the small yoke iron is fixed at the bottom of the permanent magnet and is positioned at the top of the iron core.

Further, the machine body base further comprises a cylindrical through groove, the iron core is inserted into the cylindrical through groove, and the top end of the iron core protrudes out of the upper opening of the cylindrical through groove.

Further, the magnetic latching structure relay further comprises a relay shell, wherein the relay shell is a shell with a hollow structure and covers the relay body in an enclosing mode.

Compared with the prior art, the utility model discloses the beneficial effect that can reach does:

when the relay is in the open state, the movable contact contacts and closes the normally closed terminal pin. The utility model discloses a set up permanent magnet magnetization iron core above the iron core, but this magnetic force is not enough to attract armature, when putting through forward direct current pulse voltage for the coil foot, the coil has got the electricity and produces magnetic field, further magnetizes the iron core, and permanent magnet's magnetic field direction is the same with the magnetic field direction by the magnetized iron core this moment, and magnetic force superposes for the movable contact spring subassembly is attracted by the iron core and horizontal migration in the twinkling of an eye, and movable contact breaks away from normally closed end foot and contacts closedly with normally open end foot. Because the distance between the movable reed component and the iron core is reduced, the magnetic loss is minimum, the closed state of the movable contact can be kept unchanged only by the magnetic force of the permanent magnet, and the energization of the coil pin can be disconnected at the moment, and the voltage does not need to be continuously input into the coil. When the power-off state is to be recovered, the coil can be electrified to generate a reverse magnetic field only by connecting reverse direct-current pulse voltage to the coil pin, so that the magnetic force generated by the annular magnet is counteracted, and the movable contact spring component can enable the movable contact to recover the power-off state due to the self resilience force.

After the iron core is magnetized by introducing forward direct current pulse voltage, the closed state of the movable contact can be kept unchanged only by the magnetic force of the permanent magnet connected with the iron core, the coil does not need to be electrified, the energy consumption is greatly reduced, and the temperature rise of the relay is smaller; meanwhile, the phenomenon that the misoperation is out of control due to the fact that the working voltage which is continuously input in the past is unstable is avoided, and accidents are effectively prevented.

Drawings

Fig. 1 is an exploded view of the present invention;

fig. 2 is a perspective view of a relay body;

fig. 3 is a cross-sectional view of the relay body;

FIG. 4 is a front view of FIG. 3;

fig. 5 is a schematic view showing an internal structure of a relay body;

fig. 6 is a schematic structural diagram of the base of the machine body.

In the figure: 10. a relay body; 11. a machine body base; 111. a cylindrical through groove; 12. a permanent magnet; 13. a yoke; 14. an iron core; 15. a coil; 151. a coil leg; 16. a movable spring plate component; 161. a movable contact; 162. an armature; 163. pushing the sheet; 164. a reed; 17. a normally open terminal pin; 171. a normally open contact; 18. a normally closed end pin; 181. a normally closed contact; 19. a small yoke iron; 20. and a relay housing.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

Referring to fig. 1, the utility model discloses a magnetic latching structure relay, which comprises a relay body 10; referring to fig. 2 to 5, the relay body 10 further includes: the machine body base 11, the permanent magnet 12, the yoke 13, the iron core 14, the coil 15, the movable spring assembly 16, the normally open terminal pin 17 and the normally closed terminal pin 18. The iron core 14 is fixed on the machine body base 11, specifically, the machine body base 11 is provided with a cylindrical through groove 111 (see fig. 6) for providing an installation position for the iron core 14, the iron core 14 is inserted into the cylindrical through groove 111, and the top end of the iron core 14 protrudes out of the upper opening of the cylindrical through groove 111; the coil 15 is specifically an enameled wire and is arranged outside the iron core 14 in a surrounding manner, and specifically, the coil 15 is wound outside the cylindrical through groove 111; the coil 15 includes coil legs 151 from both ends thereof. The permanent magnet 12 is fixedly mounted on top of the core 14. A yoke 13 is fixed on the side of the iron core 14, and one end of the yoke 13 is positioned on the top of the permanent magnet 12; specifically, the yoke 13 is in an inverted L shape, the top of which is located above the permanent magnet 12, and the side of which is inserted into the side of the iron core 14; the yoke 13 may be used to enclose the magnetic force generated by the electromagnetic coil 15 inside, so that the magnetic energy is fully utilized. The movable reed assembly 16 is located on the other side of the yoke 13 with respect to the iron core 14, and the movable reed assembly 16 includes a movable contact 161; the movable spring assembly 16 is movable relative to the yoke 13. The normally open terminal pin 17 and the normally closed terminal pin 18 are inserted and fixed on the machine body base 11 along the horizontal direction, the movable contact 161 is arranged between the normally open terminal pin 17 and the normally closed terminal pin 18, and the movable contact 161 is switched between the states of contacting and closing the normally open terminal pin 17 and the normally closed terminal pin 18.

When the relay is in the open state, the movable contact 161 contacts and closes the normally closed terminal pin 18. The utility model discloses a set up permanent magnet 12 magnetization iron core 14 above iron core 14, but this magnetic force is not enough to attract armature 162, when putting through forward direct current pulse voltage for coil foot 151, coil 15 has got electricity and produces magnetic field, further magnetize iron core 14, the magnetic field direction of permanent magnet 12 is the same with the magnetic field direction by magnetized iron core 14 this moment, the magnetic force stack for movable contact piece subassembly 16 is attracted by iron core 14 and horizontal migration in the twinkling of an eye, movable contact 161 breaks away from normally closed end foot 18 and contacts closedly with normally open end foot 17. Since the distance between the movable contact spring assembly 16 and the iron core 14 is reduced and the magnetic loss is minimized, the closed state of the movable contact 161 can be maintained by only the magnetic force of the permanent magnet 12, and the energization of the coil leg 151 can be cut off without continuously inputting a voltage to the coil 15. When the power-off state is to be recovered, the coil 15 can be electrified to generate a reverse magnetic field only by switching on the reverse direct-current pulse voltage to the coil pin 151, so that the magnetic force generated by the annular magnet is counteracted, and the movable contact spring assembly 16 can make the movable contact point recover the power-off state due to the self resilience force.

The utility model can keep the closing state of the movable contact 161 unchanged by the magnetic force of the permanent magnet 12 connected with the iron core 14 after the iron core 14 is magnetized by introducing the positive direct current pulse voltage, the coil 15 does not need to be electrified, the energy consumption is greatly reduced, and the temperature rise of the relay is smaller; meanwhile, the phenomenon that the misoperation is out of control due to the fact that the working voltage which is continuously input in the past is unstable is avoided, and accidents are effectively prevented.

Preferably, referring to fig. 4, the bottom end of the normally open terminal pin 17 is inserted and fixed on the machine body base 11, and the top end thereof is fixedly provided with a normally open contact 171; the bottom end of the normally closed terminal pin 18 is inserted and fixed on the machine body base 11, and the top end of the normally closed terminal pin is fixedly provided with a normally closed contact 181; the movable contact 161 is located between the normally open contact 171 and the normally closed contact 181. The movable contact 161 contacts the normally-open terminal pin 17 by contacting the normally-open contact 171, and contacts the normally-closed terminal pin 18 by contacting the normally-closed contact 181.

Preferably, with reference to fig. 5, the movable spring assembly 16 comprises in particular: an armature 162, a push piece 163, a reed 164, and a movable contact 161. The armature 162 is disposed at a side portion of the yoke 13, and more specifically, the armature 162 is L-shaped, a bottom portion thereof is horizontally disposed in the machine body base 11, and a side portion thereof is disposed at a side of the yoke 13; the push sheet 163 is horizontally arranged, one end of the push sheet is fixedly connected with the armature 162, and the other end of the push sheet is fixedly connected with the spring leaf 164; the bottom end of the spring 164 is inserted and fixed on the machine body base 11, the top end of the spring 164 is fixedly connected with the push sheet 163, and the connecting end of the push sheet 163 of the spring 164 is also fixedly provided with the movable contact 161.

When a positive direct current pulse voltage is input to the coil 15, the armature 162 is attracted by the magnetized iron core 14, the push piece 163 horizontally moves to the right, the upper end of the reed 164 is driven to elastically deform to the right, and the movable contact 161 contacts the closed normally-open terminal pin 17; at this time, the input voltage can be cut off, and the closed state of the movable contact 161 can be maintained only by the magnetic force of the permanent magnet 12 connected to the iron core 14. When the power-off state is to be restored, the coil 15 can be energized to generate a reverse magnetic field only by connecting the coil pin 151 with a reverse direct-current pulse voltage, so that the magnetic force generated by the ring magnet is counteracted, and the reed 164 is reset to the left side due to the self-rebounding action to drive the movable contact 161 to contact the normally-closed terminal pin 18.

Preferably, the present invention further comprises a small yoke 19, wherein the small yoke 19 is fixed at the bottom of the permanent magnet 12 and is located at the top of the iron core 14 for better enclosing the magnetic force generated by the electromagnetic coil 15 inside, so that the magnetic energy can be fully utilized.

Preferably, referring to fig. 1, the present invention further includes a relay housing 20, where the relay housing 20 is a hollow casing and covers the relay body 10 to perform a protection function.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims

1. A magnetic latching structure relay, comprising: a relay body; the relay body includes: the machine body comprises a machine body base, a permanent magnet, a yoke, an iron core, a coil, a movable reed assembly, a normally open end pin and a normally closed end pin; the iron core is fixed on the machine body base, the coil is arranged outside the iron core in a surrounding mode, and the permanent magnet is fixedly installed at the top of the iron core; the coil comprises coil pins at two ends of the coil; the yoke iron is fixed on the side part of the iron core, and one end of the yoke iron is positioned at the top of the permanent magnet; the movable spring component and the yoke iron can move relatively, and the movable spring component is positioned on the side part of the yoke iron; the movable reed assembly comprises a movable contact; normally open the end foot with normally closed end foot is pegged graft along the horizontal direction and is fixed on the organism base, movable contact locates normally open the end foot with between the normally closed end foot to it is closed in the contact normally open the end foot with switch between the state of normally closed end foot.

2. The magnetic retention structure relay of claim 1, wherein the movable spring assembly comprises: armature, push-piece, reed and movable contact; the armature is arranged on the side part of the yoke iron; the push sheet is horizontally arranged, one end of the push sheet is fixedly connected with the armature, and the other end of the push sheet is fixedly connected with the reed; the bottom end of the reed is fixedly inserted on the machine body base, the top end of the reed is fixedly connected with the push sheet, and the movable contact is fixedly arranged at the push sheet connecting end of the reed.

3. The magnetic latching structure relay according to claim 2, wherein said armature is L-shaped, and the bottom thereof is horizontally disposed in the body base, and the side thereof is disposed at one side of said yoke.

4. The magnetic latching structure relay according to claim 1, wherein the bottom end of the normally open terminal pin is inserted and fixed on the machine body base, and the top end of the normally open terminal pin is fixedly provided with a normally open contact; the bottom end of the normally closed terminal pin is inserted and fixed on the machine body base, and the top end of the normally closed terminal pin is fixedly provided with a normally closed contact; the movable contact is located between the normally open contact and the normally closed contact.

5. The magnetic latching structure relay of claim 1, further comprising a small yoke; the small yoke iron is fixed at the bottom of the permanent magnet and is positioned at the top of the iron core.

6. The relay of claim 1, wherein the housing base further comprises a cylindrical through slot, the iron core is inserted into the cylindrical through slot, and a top end of the iron core protrudes out of an upper opening of the cylindrical through slot.

7. The magnetic latching structure relay according to claim 1, wherein the magnetic latching structure relay further comprises a relay housing, which is a hollow housing and is enclosed outside the relay body.