CN112768301A - Magnetic latching relay capable of automatically cutting off self-driven power supply - Google Patents

Magnetic latching relay capable of automatically cutting off self-driven power supply Download PDF

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Publication number
CN112768301A
CN112768301A CN202110014366.4A CN202110014366A CN112768301A CN 112768301 A CN112768301 A CN 112768301A CN 202110014366 A CN202110014366 A CN 202110014366A CN 112768301 A CN112768301 A CN 112768301A
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CN
China
Prior art keywords
spring
self
coil
armature
normally closed
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Application number
CN202110014366.4A
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Chinese (zh)
Inventor
王建奇
李鹏启
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Xi'an Hongfa Electric Appliance Co ltd
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Xi'an Hongfa Electric Appliance Co ltd
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Priority to CN202110014366.4A priority Critical patent/CN112768301A/en
Publication of CN112768301A publication Critical patent/CN112768301A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/28—Power arrangements internal to the switch for operating the driving mechanism using electromagnet
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/02—Bases; Casings; Covers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/18—Movable parts of magnetic circuits, e.g. armature

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)

Abstract

The invention discloses a magnetic latching relay capable of automatically cutting off a self-driven power supply, which comprises a base and a shell, wherein a plurality of groups of contact mechanisms are arranged on the base, an installation platform is arranged above the contact mechanisms, a permanent magnet is arranged at the bottom of the installation platform, and an armature mechanism is arranged on the outer side of the permanent magnet; the armature mechanism comprises a first armature sheet and a second armature sheet, and yokes are arranged on the first armature sheet and the second armature sheet; each group of contact mechanisms comprises a movable spring part, a static spring part and a coil terminal; the movable spring component comprises a movable spring fixing end and a movable spring leaf, and the static spring component comprises a static spring fixing end and a normally closed static spring end; two ends of the coil are respectively connected with two coil terminals; the fixed end of the dynamic spring, the normally closed static spring end and the coil terminal are connected in series; the end part of the first armature sheet is provided with a first push rod, and the end part of the second armature sheet is provided with a second push rod. The invention utilizes the movement of the movable spring of the relay to cut off the self-driven power supply, thereby realizing the purpose of self-breaking of the self-driven power supply of the relay.

Description

Magnetic latching relay capable of automatically cutting off self-driven power supply
Technical Field
The invention belongs to the technical field of magnetic latching relays, and relates to a magnetic latching relay capable of automatically disconnecting a self-driven power supply.
Background
The magnetic latching relay is a novel relay developed in recent years and is also an automatic switch. As with other electromagnetic relays, it acts to automatically turn on and off the circuit. Different from other electromagnetic relays, the normally closed or normally open state of the magnetic latching relay completely depends on the action of permanent magnetic steel, and the switching of the switch state is completed by triggering of pulse electric signals with certain width.
When voltage is applied to two ends of a copper coil in a magnetic latching relay control circuit, current flows through the coil, an iron core and the coil can generate an electromagnetic effect, an armature component is attracted with a yoke under the action of an electromagnetic field, the armature component can drive a push rod to act in the action process, the push rod pushes a movable reed to disconnect the movable reed and a normally closed static reed and close the normally open static reed, a power supply is cut off after a contact is closed, and the armature component and the yoke can keep an attraction state under the action of a permanent magnet.
The conventional magnetic latching relay is driven by a pulse power supply, and the power supply is turned off after the magnetic latching relay operates. For the magnetic latching relay driven by the constant current source or the constant voltage source, power must be supplied from the outside to make the magnetic latching relay act, and then the magnetic latching relay is powered off by the external operation, so that the operation is complicated, if no external factor influences, the relay coil is always electrified, and the relay cannot cut off the self-driven power supply. The relay can always keep the power-on state under the condition that the relay is not cut off, so that the energy of the whole circuit is wasted, the circuit is complicated after the relay is cut off, and the cost of the relay is high.
Disclosure of Invention
The invention aims to solve the technical problem of providing a magnetic latching relay for automatically cutting off a self-driven power supply, which utilizes the movement of a movable reed of the relay to cut off the self-driven power supply, thereby realizing the purpose of automatically cutting off the self-driven power supply of the relay.
The invention is realized by the following technical scheme:
a magnetic latching relay capable of automatically cutting off a self-driven power supply comprises a base and a shell covering the base, wherein a plurality of groups of contact mechanisms are arranged on the base, an installation table for installing a coil frame is arranged above the contact mechanisms, a permanent magnet is arranged at the center of the bottom of the installation table, and an armature mechanism is arranged on the outer side of the permanent magnet; the armature mechanism comprises a first armature sheet and a second armature sheet which are respectively arranged at two sides of the permanent magnet, and yokes are respectively arranged on opposite surfaces of the first armature sheet and the second armature sheet which are opposite;
each group of contact mechanisms comprises a movable spring part, a static spring part and a coil terminal which are arranged on the base; the movable spring component comprises a movable spring fixing end and a movable spring leaf, and the static spring component comprises a static spring fixing end and a normally closed static spring end; a normally open static reed is arranged outside the fixed end of the static spring, and a normally closed static reed is arranged outside the normally closed static spring; one end of the movable spring leaf is connected with the fixed end of the movable spring leaf, and the other end of the movable spring leaf is positioned between the normally open static spring leaf and the normally closed static spring leaf;
a through groove is formed in the coil frame, and an iron core is arranged in the through groove; the coil is wound outside the coil rack, and two ends of the coil are respectively connected with two coil terminals on the base; the fixed end of the movable spring and the normally closed static spring end are connected with the coil terminal in series, so that the movable spring, the normally closed static spring and the coil are connected in series; the end parts of the first armature sheet and the second armature sheet are respectively provided with a push rod for pushing the movable spring leaf to act, and the end part of the push rod is provided with a pushing piece.
Furthermore, after the coil is electrified, the armature mechanism horizontally rotates under the action of a magnetic field to drive the push rod to move, and the pushing piece on the push rod pushes the movable reed to separate the movable reed from the normally closed static reed, so that the coil is powered off; the armature mechanism continues to move under the action of the permanent magnet and the self inertia, and the pushing piece on the pushing rod pushes the movable spring piece to close the movable spring piece and the normally open static spring piece.
Furthermore, the contact mechanisms comprise two groups, the two groups of contact mechanisms are respectively a first contact mechanism and a second contact mechanism, and the first contact mechanism and the second contact mechanism are symmetrical relative to the diagonal line of the base.
Further, the first contact structure comprises a first normally closed static spring end, a first coil terminal, a first movable spring fixed end, a first static spring fixed end and a first movable spring plate; a first normally open static spring leaf is arranged on the outer side of the fixed end of the first static spring, and a first normally closed static spring leaf is arranged on the outer side of the end of the first normally closed static spring; one end of the first movable spring is connected with the fixed end of the first movable spring, and the other end of the first movable spring is positioned between the first normally-open static spring and the first normally-closed static spring.
Further, the second contact structure comprises a second fixed spring end, a second movable spring end, a second coil terminal, a second normally closed fixed spring end and a second movable spring piece; a second normally open static spring leaf is arranged on the outer side of the fixed end of the second static spring, and a second normally closed static spring leaf is arranged on the outer side of the end of the second normally closed static spring leaf; one end of the second movable spring is connected with the fixed end of the second movable spring, and the other end of the second movable spring is positioned between the second normally-open static spring and the second normally-closed static spring.
Furthermore, the push rod is curved, and the pushing piece is a glass ball.
Furthermore, the number of the coil frames is two, and the two coil frames are arranged on the mounting table side by side.
Furthermore, the first armature sheet and the second armature sheet are arranged in parallel.
Furthermore, a first yoke iron is arranged on the first armature sheet, a second yoke iron is arranged on the second armature sheet, and a connecting line of the first yoke iron and the second yoke iron is parallel to a diagonal line of the base.
Furthermore, the connecting line of the push rod at the end part of the first armature sheet and the push rod at the end part of the second armature sheet is parallel to the diagonal line of the base.
Compared with the prior art, the invention has the following beneficial technical effects:
the invention discloses a magnetic latching relay capable of automatically cutting off a self-driven power supply, wherein a normally closed static reed and a movable reed are connected in series at two ends of a coil, after the coil is electrified to generate a magnetic field, an armature mechanism rotates under the action of the magnetic field, a push rod pushes the movable reed to move so as to separate the movable reed from the normally closed static reed, and the coil is powered off, so that the purpose that the relay cuts off the self-driven power supply is realized; after the coil is powered off, the armature mechanism continues to move under the action of the permanent magnet and the motion inertia to drive the push rod to move, and the pushing piece on the push rod drives the movable spring piece to move to close the movable spring piece and the normally-open static spring piece. After the movable spring and the normally open static spring are closed, the coil terminal and the normally closed static spring end do not need to be powered off, and the magnetic latching relay cuts off a driving power supply of the magnetic latching relay.
The invention has novel structural design, adopts the design of connecting the coil with the movable reed and the normally closed static reed in series, and realizes the purpose of automatically cutting off the self-driving power supply of the relay by utilizing the movement of the movable reed of the relay. According to the invention, two ends of a coil of the magnetic latching relay are respectively connected with the movable spring piece and the normally closed static spring piece in series, the pushing piece on the pushing rod drives the movable spring piece to move in the movement process of the armature mechanism, so that the movable spring piece is separated from the normally closed static spring piece, and the coil is powered off, thereby realizing the purpose that the magnetic latching relay cuts off the self-driven power supply. The magnetic latching relay can be driven by a constant voltage source or a constant current source under the condition of no pulse drive, and the power supply of the relay does not need to be cut off after the relay acts, so that the waste of power resources is reduced.
Drawings
FIG. 1 is a schematic structural diagram of a magnetic latching relay for automatically disconnecting a self-driven power supply according to the present invention;
fig. 2 is a schematic structural view of an armature mechanism and a contact mechanism of the present invention;
FIG. 3 is a schematic view of the contact mechanism of the present invention;
FIG. 4 is a diagram of the connection of the contact mechanism and the coil of the present invention;
fig. 5 is a schematic structural view of an armature mechanism of the present invention.
Wherein, 1 is first normally closed static spring end, 2 is first coil terminal, 3 is first movable spring stiff end, 4 is first static spring stiff end, 5 is second static spring stiff end, 6 is second movable spring stiff end, 7 is second coil terminal, 8 is second normally closed static spring end, 9 is the coil, 10 is the iron core, 11 is first normally open static reed, 12 is first normally closed static reed, 13 is the mount table, 14 is the second catch bar, 16 is second normally open static reed, 17 is second normally closed static reed, 18 is first movable reed, 19 is second movable reed, 20 is first armature piece, 21 is the permanent magnet, 22 is first yoke, 23 is second yoke, 24 is second armature piece, 25 is the gasket, 26 is the base, 27 is the second impeller, 28 is the coil former.
Detailed Description
The present invention will now be described in further detail with reference to the attached drawings, which are illustrative, but not limiting, of the present invention.
Referring to fig. 1, 2 and 3, a magnetic latching relay for automatically cutting off a self-driving power supply comprises a base 26 and a shell covering the base 26, wherein a plurality of groups of contact mechanisms are arranged on the base 26, an installation table 13 for installing a coil rack is arranged above the contact mechanisms, a permanent magnet 21 is arranged at the center of the bottom of the installation table 13, and an armature mechanism is arranged outside the permanent magnet 21; the armature mechanism comprises a first armature sheet 20 and a second armature sheet 24 which are respectively arranged at two sides of the permanent magnet 21, and yokes are respectively arranged on the opposite side surfaces of the first armature sheet 20 and the second armature sheet 24;
each set of contact mechanisms comprises a movable spring member, a stationary spring member and a coil terminal arranged on the base 26; the movable spring component comprises a movable spring fixing end and a movable spring leaf, and the static spring component comprises a static spring fixing end and a normally closed static spring end; a normally open static reed is arranged outside the fixed end of the static spring, and a normally closed static reed is arranged outside the normally closed static spring; one end of the movable spring leaf is connected with the fixed end of the movable spring leaf, and the other end of the movable spring leaf is positioned between the normally open static spring leaf and the normally closed static spring leaf;
a through groove is formed in the coil frame 28, and an iron core 10 is arranged in the through groove; the coil 9 is wound outside the coil rack 28, and two ends of the coil 9 are respectively connected with two coil terminals on the base 26; the fixed end of the movable spring and the normally closed static spring are connected in series with the coil terminal, so that the movable spring leaf, the normally closed static spring leaf and the coil 9 are connected in series; the ends of the first armature sheet 20 and the second armature sheet 24 are both provided with a push rod for pushing the movable spring leaf to act, and the end of the push rod is provided with a pushing piece.
Referring to fig. 1, a schematic structural diagram of a magnetic latching relay for automatically disconnecting a self-powered power supply according to the present invention is shown. The magnetic latching relay for automatically cutting off the self-driven power supply comprises a magnetic circuit mechanism, a contact mechanism and a mechanical element. The magnetic circuit mechanism comprises an iron core 10, a yoke, an armature mechanism, a permanent magnet 21, a coil 9, a coil terminal and the like, the contact mechanism comprises a movable spring part and a static spring part, and the mechanical element comprises a shell and a base 26; the casing and the base 26 are connected with each other to form a relay whole, and the magnetic circuit mechanism and the contact mechanism are both positioned in a cavity wrapped by the casing and the base 26.
The invention provides a novel magnetic latching relay structure of a self-breaking driving power supply, which is novel in structural design, on the basis of the original relay structure, through the redesign of the structure, a movable spring, a normally closed static spring and a coil 9 are connected in series, after the coil 9 is electrified, an armature mechanism moves under the action of a magnetic field so as to drive a push rod to move, the push rod pushes the movable spring to move, the movable spring is separated from the normally closed static spring to break the coil 9, the movable spring is connected with and disconnected from the normally closed static spring by utilizing the movement of the push rod, so that the on-off of the coil 9 is realized, and the purpose of self-breaking of the self-driving power supply of the magnetic latching relay is further realized. The structure is different from the structure of the original magnetic latching relay, the original magnetic latching relay is driven by a pulse power supply, and after the magnetic latching relay acts, the power supply is powered off. For the magnetic latching relay driven by the constant current source or the constant voltage source, the magnetic latching relay must be powered by the outside first to be operated, and then the magnetic latching relay is powered off by the outside operation, so that the operation is complicated, if no external factor influences, the coil 9 of the relay is always electrified, and the relay cannot cut off the self-driving power supply. The structure of the application saves the pulse drive of the magnetic latching relay, the magnetic latching relay is directly driven by a constant current source or a constant voltage source under the condition of no pulse drive, the magnetic latching relay can cut off a driving power supply per se after the relay acts, the circuit is simplified, and the magnetic latching relay can also save energy and effectively work in the environment without pulse drive.
Further, after the coil 9 is powered on, the armature mechanism horizontally rotates under the action of a magnetic field to drive the push rod to move, and the pushing piece on the push rod pushes the movable reed to separate the movable reed from the normally closed static reed, so that the coil 9 is powered off; the armature mechanism continues to move under the action of the permanent magnet 21 and the self inertia, and the pushing piece on the pushing rod pushes the movable spring piece to close the movable spring piece and the normally open static spring piece.
As shown in fig. 2, the end of the first armature plate 20 is provided with a first push rod (not shown in the drawings), and the end of the first push rod is provided with a first pushing member (not shown in the drawings); a second pushing rod 14 is arranged at the end part of the second armature sheet 24, and a second pushing piece 27 is arranged at the end part of the second pushing rod 14; after the coil 9 is energized, the armature mechanism horizontally rotates under the action of the magnetic field to drive the first push rod and the second push rod 14 to move, and the movement of the second push rod 14 is taken as an example for explanation: after the coil 9 is powered on, the armature mechanism horizontally rotates under the action of the magnetic field to drive the second push rod 14 to move, and the second pushing piece 27 on the second push rod 14 pushes the second movable spring piece 19 to move, so that the second movable spring piece 19 is separated from the second normally closed static spring piece 17, and the coil 9 is powered off; the armature mechanism continues to move under the action of the permanent magnet 21 and the inertia of the armature mechanism, and the second pushing piece 27 pushes the second movable spring piece 19 to move, so that the second movable spring piece 19 and the second normally-open static spring piece 16 are closed. After the second movable spring 19 and the second normally-open static spring 16 are closed, the coil terminal and the second normally-closed static spring end 8 do not need to be powered off, and the magnetic latching relay cuts off the power supply for driving the spring to the depth by itself.
Further, the contact mechanisms include two groups, the two groups of contact mechanisms are respectively a first contact mechanism and a second contact mechanism, and the first contact mechanism and the second contact mechanism are symmetrical with respect to a diagonal of the base 26.
Further, the first contact structure comprises a first normally closed static spring end 1, a first coil terminal 2, a first movable spring fixed end 3, a first static spring fixed end 4 and a first movable spring 18; a first normally open static spring leaf 11 is arranged on the outer side of the first static spring fixing end 4, and a first normally closed static spring leaf 12 is arranged on the outer side of the first normally closed static spring end 1; one end of the first movable spring 18 is connected with the first movable spring fixing end 3, and the other end is positioned between the first normally open static spring 11 and the first normally closed static spring 12.
Further, the second contact structure comprises a second fixed spring end 5, a second movable spring end 6, a second coil terminal 7, a second normally closed fixed spring end 8 and a second movable spring piece 19; a second normally open static spring piece 16 is arranged on the outer side of the second static spring fixing end 5, and a second normally closed static spring piece 17 is arranged on the outer side of the second normally closed static spring end 8; one end of the second movable spring 19 is connected with the second movable spring fixing end 6, and the other end is positioned between the second normally-open static spring 16 and the second normally-closed static spring 17.
Referring to fig. 4, the connection relationship between the contact mechanism of the present invention and the coil 9 is shown. Fig. 4 shows a connection relationship diagram of only one coil 9 and the contact mechanism, two ends of the coil 9 are respectively connected with the first coil terminal 2 and the second coil terminal 7, and the second movable spring fixed end 6 and the second normally closed stationary spring end 8 are connected in series with the coil terminal 7, so that the series connection of the second movable spring piece 19 and the second normally closed stationary spring piece 17 with the coil 9 is realized. According to the invention, the movable spring piece, the normally closed static spring piece and the coil 9 are connected in series, the armature mechanism moves under the action of a magnetic field after the coil 9 is electrified, and then the pushing rod is driven to move, the pushing piece on the pushing rod drives the movable spring piece to move, and the movable spring piece is separated from the normally closed static spring piece to cut off the coil 9, so that the purpose of cutting off a power supply of the magnetic latching relay is realized.
Furthermore, the push rod is curved, and the pushing piece is a glass ball.
Referring to fig. 2, the armature mechanism and the contact mechanism of the present invention are schematically shown. The first pushing rod and the second pushing rod 14 are both curved, and the first pushing piece and the second pushing piece 27 are both glass balls. The first push rod and the second push rod 14 can be welded or bonded on the armature piece, pushing pieces are arranged on the first push rod and the second push rod 14, the pushing pieces can be glass balls, and the glass balls can touch the movable spring piece in the moving process of the first push rod and the second push rod 14 so as to push the movable spring piece to move.
Further, the number of the coil formers 28 is two, and the two coil formers 28 are arranged on the mounting table 13 side by side. Referring to fig. 1, a spacer 25 is disposed above the coil frame 28, a through slot is disposed in the coil frame 28, and the iron core 10 penetrates through the spacer 25 and the coil frame 28, and is disposed in the through slot of the coil frame 28.
It should be noted that the magnetic latching relay for automatically disconnecting the self-driving power supply of the present invention may be a double coil or a single coil. The invention relates to a magnetic latching relay for automatically cutting off a self-driven power supply, which mainly uses direct current to play a role of a pulse power supply through structural redesign, a coil adopts the direct current, and the power supply of the coil is cut off through the movement of a movable reed. When there are two coils, the connection relationship between the two coils and the contact mechanism is: two ends of one coil are respectively connected with the first coil terminal 2 and the second normally closed static spring terminal 8, two ends of the other coil are respectively connected with the first coil terminal 2 and the first static spring fixed end 4, the first coil terminal 2 is a common end of the two coils 9, and the two coils only energize one coil at a time so as to realize the forward and reverse rotation of the armature mechanism.
Further, the first armature plate 20 and the second armature plate 24 are arranged in parallel.
Referring to fig. 5, the armature mechanism of the present invention is schematically illustrated. The armature mechanism rotates around a central circular hole of the permanent magnet 21 in fig. 5, the armature mechanism rotates in the horizontal direction, and the movement of the push rod is utilized to make and break the movable spring piece and the normally closed static spring piece so as to realize the on-off of the coil 9.
Further, a first yoke 22 is arranged on the first armature piece 20, a second yoke 23 is arranged on the second armature piece 24, and a connecting line of the first yoke 22 and the second yoke 23 is parallel to a diagonal line of the base 26.
Further, a connecting line of the push rod at the end of the first armature plate 20 and the push rod at the end of the second armature plate 24 is parallel to a diagonal line of the base 26.
Specifically, the push rods comprise a first push rod and a second push rod 14, the first push rod is arranged at the end of the first armature sheet 20, the second push rod 14 is arranged at the end of the second armature sheet 24, the positions of the first push rod and the second push rod 14 are opposite, and the connecting line of the first push rod and the second push rod 14 is parallel to the diagonal line of the base 26.
Further, the first normally open static reed 11, the first normally closed static reed 12, the second normally open static reed 16, the second normally closed static reed 17, the first movable reed 18 and the second movable reed 19 are all made of conductive materials.
According to the technical scheme, the invention provides the magnetic latching relay capable of automatically cutting off the self-driven power supply, the normally closed static reed and the movable reed are connected in series at two ends of the coil 9, after the coil 9 is electrified to generate a magnetic field, the armature mechanism rotates under the action of the magnetic field, the push rod pushes the movable reed to move so as to separate the movable reed from the normally closed static reed, the coil 9 is powered off, and the purpose that the relay automatically cuts off the self-driven power supply is achieved; after the coil 9 is powered off, the armature mechanism continues to move under the action of the permanent magnet 21 and the motion inertia to drive the push rod to move, and the pushing piece on the push rod drives the movable spring piece to move so as to close the movable spring piece and the normally open static spring piece.
The invention has novel structural design, adopts the design of connecting the coil 9 with the movable reed and the normally closed static reed in series, and realizes the purpose of automatically cutting off the self-driving power supply of the relay by utilizing the movement of the movable reed of the relay. According to the invention, two ends of a coil 9 of the magnetic latching relay are respectively connected with the movable spring piece and the normally closed static spring piece in series, the pushing piece on the pushing rod drives the movable spring piece to move in the movement process of the armature mechanism, so that the movable spring piece is separated from the normally closed static spring piece, and the coil is powered off, thereby realizing the purpose that the magnetic latching relay cuts off a self-driving power supply.
The magnetic latching relay cuts off a self driving power supply, a newly designed circuit is not needed to be additionally configured to cut off the power supply, the requirement degree on an external power supply is reduced, the input of a pulse power supply is not required any more, and the whole design and the circuit are also simple. The magnetic latching relay cuts off a self driving power supply, the structure of the relay is utilized inside, no new device needs to be additionally installed, simplicity and practicability are achieved, the power consumption of the relay is reduced, the relay is more energy-saving, and the self movement structure is used for controlling the self driving power supply to be more reliable.
The embodiments given above are preferable examples for implementing the present invention, and the present invention is not limited to the above-described embodiments. Any non-essential addition and replacement made by the technical characteristics of the technical scheme of the invention by a person skilled in the art belong to the protection scope of the invention.

Claims (10)

1. A magnetic latching relay capable of automatically cutting off a self-driven power supply is characterized by comprising a base (26) and a shell covered on the base, wherein a plurality of groups of contact mechanisms are arranged on the base (26), an installation table (13) for installing a coil rack (28) is arranged above the contact mechanisms, a permanent magnet (21) is arranged at the center of the bottom of the installation table (13), and an armature mechanism is arranged on the outer side of the permanent magnet (21); the armature mechanism comprises a first armature sheet (20) and a second armature sheet (24) which are respectively arranged at two sides of the permanent magnet (21), and yokes are respectively arranged on opposite surfaces of the first armature sheet (20) and the second armature sheet (24) which are opposite;
each group of contact mechanisms comprises a movable spring part, a static spring part and a coil terminal which are arranged on the base (26); the movable spring component comprises a movable spring fixing end and a movable spring leaf, and the static spring component comprises a static spring fixing end and a normally closed static spring end; a normally open static reed is arranged outside the fixed end of the static spring, and a normally closed static reed is arranged outside the normally closed static spring; one end of the movable spring leaf is connected with the fixed end of the movable spring leaf, and the other end of the movable spring leaf is positioned between the normally open static spring leaf and the normally closed static spring leaf;
a through groove is formed in the coil rack (28), and an iron core (10) is arranged in the through groove; a coil (9) is wound outside the coil rack, and two ends of the coil (9) are respectively connected with two coil terminals on the base (26); the fixed end of the movable spring and the normally closed static spring end are connected with the coil terminal in series, so that the movable spring, the normally closed static spring and the coil (9) are connected in series; the ends of the first armature sheet (20) and the second armature sheet (24) are both provided with pushing rods for pushing the movable spring leaf to act, and the ends of the pushing rods are provided with pushing pieces.
2. The magnetic latching relay of the self-power-off self-driven power supply according to claim 1, characterized in that after the coil (9) is energized, the armature mechanism horizontally rotates under the action of the magnetic field to drive the push rod to move, the pushing piece on the push rod pushes the movable reed to separate the movable reed from the normally closed static reed, so that the coil (9) is de-energized; the armature mechanism continues to move under the action of the permanent magnet (21) and the self inertia, and the pushing piece on the pushing rod pushes the movable spring piece to close the movable spring piece and the normally open static spring piece.
3. The magnetic latching relay for self-interrupting self-driven power supply according to claim 1, wherein the contact mechanism comprises two sets of contact structures, the two sets of contact structures are a first contact mechanism and a second contact mechanism, and the first contact mechanism and the second contact mechanism are symmetrical with respect to a diagonal line of the base (26).
4. The magnetic latching relay of self-breaking self-driving power supply of claim 3, characterized in that the first contact structure comprises a first normally closed static spring end (1), a first coil terminal (2), a first movable spring fixed end (3), a first static spring fixed end (4) and a first movable spring (18); a first normally open static spring leaf (11) is arranged on the outer side of the first static spring fixing end (4), and a first normally closed static spring leaf (12) is arranged on the outer side of the first normally closed static spring end (1); one end of the first movable spring (18) is connected with the first movable spring fixing end (3), and the other end is positioned between the first normally open static spring (11) and the first normally closed static spring (12).
5. The magnetic latching relay of self-interrupting self-driven power supply according to claim 3, wherein said second contact structure comprises a second fixed spring end (5), a second movable spring end (6), a second coil terminal (7), a second normally closed fixed spring end (8) and a second movable spring plate (19); a second normally open static spring leaf (16) is arranged on the outer side of the second static spring fixing end (5), and a second normally closed static spring leaf (17) is arranged on the outer side of the second normally closed static spring end (8); one end of the second movable spring (19) is connected with the second movable spring fixing end (6), and the other end is positioned between the second normally open static spring (16) and the second normally closed static spring (17).
6. The magnetic latching relay of claim 1, wherein the pushing rod is curved and the pushing member is a glass ball.
7. The magnetic latching relay for self-interrupting self-driven power supply according to claim 1, wherein the number of the bobbin (28) is two, and the two bobbins (28) are arranged side by side on the mounting table (13).
8. The magnetic latching relay for self-interrupting a self-driven power supply according to claim 1, wherein the first armature plate (20) and the second armature plate (24) are arranged in parallel.
9. The magnetic latching relay for self-interrupting a self-driving power supply according to claim 8, wherein the first armature plate (20) is provided with a first yoke (22), the second armature plate (24) is provided with a second yoke (23), and a line connecting the first yoke (22) and the second yoke (23) is parallel to a diagonal line of the base (26).
10. The magnetic latching relay of self-interrupting self-driving power according to claim 8, wherein the line connecting the push rod of the first armature plate (20) end and the push rod of the second armature plate (24) end is parallel to the diagonal line of the base (26).
CN202110014366.4A 2021-01-06 2021-01-06 Magnetic latching relay capable of automatically cutting off self-driven power supply Pending CN112768301A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110014366.4A CN112768301A (en) 2021-01-06 2021-01-06 Magnetic latching relay capable of automatically cutting off self-driven power supply

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110014366.4A CN112768301A (en) 2021-01-06 2021-01-06 Magnetic latching relay capable of automatically cutting off self-driven power supply

Publications (1)

Publication Number Publication Date
CN112768301A true CN112768301A (en) 2021-05-07

Family

ID=75700134

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110014366.4A Pending CN112768301A (en) 2021-01-06 2021-01-06 Magnetic latching relay capable of automatically cutting off self-driven power supply

Country Status (1)

Country Link
CN (1) CN112768301A (en)

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