CN211350493U - Fork type reed double-contact magnetic latching relay structure - Google Patents

Abstract

The utility model provides a forked reed double contact magnetism latching relay structure, it has solved the weak scheduling problem of relay anti surge current ability, it includes the base, the base installs forked type movable spring and forked type static spring through grafting mechanism, forked type movable spring is connected with the promotion card, promote card and I shape armature lock joint, I shape armature and electromagnetic component lock joint, forked type static spring includes static reed, the static reed upper end is connected with quiet forked portion, it has silver alloy static contact and high temperature resistant static contact to rivet respectively in the quiet forked portion, shown forked type movable spring includes movable spring foot and movable reed, the movable reed upper end is connected with moves forked portion, it has silver alloy movable contact and high temperature resistant movable contact to rivet respectively in the branch portion of moving, high temperature resistant static contact and silver alloy static contact's height equals, high temperature resistant movable contact's height is less than the height of silver alloy movable contact. The utility model has the advantages of anti surge current ability reinforce, contact response sensitivity.

Description

Fork type reed double-contact magnetic latching relay structure

Technical Field

The utility model belongs to the technical field of magnetic latching relay, concretely relates to divide forked reed double contact magnetic latching relay structure.

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 meets a predetermined requirement. It has an interactive relationship between the control system and the controlled system. 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 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. The magnetic latching relay has the advantages that the normally closed state or the normally open state of the magnetic latching relay completely depends on the action of permanent magnetic steel, and the switching state of the magnetic latching relay is triggered by pulse electric signals with certain width to complete the switching. The magnetic latching relay is normally kept in the contact open/close state by the magnetic force generated by the permanent magnet. When the contact of the relay needs to be in an open or close state, the relay only needs to excite the coil by positive (negative) direct current pulse voltage, and the relay completes the state conversion of opening and closing instantly. Normally, when the contact is in the hold state, the coil does not need to be energized, and the relay state can be maintained by only the magnetic force of the permanent magnet. Most products at present only use a contact group, and the contact disconnection adopts and relies on movable spring leaf counter-force to recoil by oneself or relies on the card of pushing to pull back by force, and the little occasion of surge current is switched under the certain circumstances of mainly used product volume, and is very big but the occasion of same volume is not suitable for to surge current. In addition, the situation that the pushing point changes in the Z-axis direction may occur in the operation process of the relay, so that the stability of the operation of the relay is affected.

In order to solve the defects of the prior art, people have long searched for and put forward various solutions. For example, the chinese patent document discloses a relay pusher system and a relay [201720575576.X ] including a movable reed provided with a movable reed contact that switches the movable reed contact between a contact position and a separation position; a push piece which controls the movable spring contact to switch between the contact position and the separation position by being connected to the movable spring piece; the method is characterized in that: the pushing piece is provided with a groove part, the movable spring piece is provided with an arm part, the arm part is inserted into the groove part and forms an upper limiting part on the upper side of the pushing piece, the arm part forms a lower limiting part on the lower side of the pushing piece, and the pushing piece is limited between the upper limiting part and the lower limiting part.

The scheme solves the problem of the running stability of the relay to a certain extent, but the scheme still has a plurality of defects, such as inapplicability to occasions with large surge current and the like.

Disclosure of Invention

The utility model aims at the above-mentioned problem, a reasonable in design is provided, forked form reed double contact magnetic latching relay structure that anti surge current ability is stronger.

In order to achieve the above purpose, the utility model adopts the following technical proposal: the bifurcate reed double-contact magnetic latching relay structure comprises a base, wherein a bifurcate movable spring and a bifurcate static spring are mounted on the base through a plug-in mechanism, the bifurcate movable spring is connected with a push card through a clamping mechanism, the push card is buckled with an I-shaped armature rotatably connected to the base through the push mechanism, the I-shaped armature is buckled with an electromagnetic component arranged on the base, a contact mechanism is arranged between the bifurcate movable spring and the bifurcate static spring, the contact mechanism is arranged on one side, opposite to the bifurcate static spring and the bifurcate movable spring, the bifurcate static spring comprises a static reed plugged on the base, the upper end of the static reed is connected with two separated static bifurcate parts, the static bifurcate parts are respectively riveted with a silver alloy static contact and a high-temperature resistant static contact, the bifurcate movable spring comprises a movable spring foot plugged on the base and a movable spring vertically riveted on one side of the movable spring foot, the movable fork parts are respectively riveted with a silver alloy movable contact opposite to the silver alloy static contact and a high-temperature resistant movable contact opposite to the high-temperature resistant static contact, the heights of the high-temperature resistant static contact and the silver alloy static contact are equal, and the height of the high-temperature resistant movable contact is lower than that of the silver alloy movable contact. By adopting the parallel contact structure, the surge current resistance of the relay is improved, and the relay is suitable for occasions with large surge current.

In the bifurcate reed double-contact magnetic latching relay structure, a large contact distance is formed between the silver alloy static contact and the silver alloy moving contact, and a small contact distance is formed between the high-temperature resistant static contact and the high-temperature resistant moving contact. The high-temperature resistant static contact is contacted with the silver alloy movable contact firstly when the relay is switched on, bears larger surge current, and can be pulled open by the release mechanism forcibly when the contacts are adhered.

In the above bifurcate reed double-contact magnetic latching relay structure, the plugging mechanism includes a first plugging group arranged between the bifurcate movable reed and the base and a second plugging group arranged between the bifurcate static reed and the base. The insertion mechanism fixes the forked dynamic spring and the forked static spring on the base, and the swinging of the lower ends of the forked dynamic spring and the forked static spring relative to the base is reduced.

In foretell bifurcate reed double contact magnetic latching relay structure, first grafting group is including the movable spring cutting of movable spring foot both sides downwardly extending, and it has the first fixed slot that is used for pegging graft movable spring foot and the second fixed slot that is used for pegging graft movable spring to open on the base, and first fixed slot lower extreme is provided with the jack relative with the movable spring cutting, and movable spring lower extreme middle part is provided with a plurality of plugs, and movable spring foot lower end middle part is provided with a plurality of slots, and movable spring foot both sides distribute respectively has a plurality of arc draw-in grooves. The movable spring insert is inserted into the receptacle and the movable spring leg extends downwardly through the base to connect to the terminal.

In foretell forked reed double contact magnetic latching relay structure, the second is pegged graft and is organized including the quiet spring cutting that extends and downward bending becomes the L type from quiet spring both sides lower extreme, and it has the third fixed slot that is used for pegging graft quiet spring to open on the base, and quiet spring both sides are provided with respectively with the inboard stationary blade of laminating of third fixed slot, and open at quiet spring lower extreme middle part has a plurality of slots. The L-shaped static spring inserting strip helps to keep the connection stability of the static spring piece and the base.

In the bifurcate reed double-contact magnetic latching relay structure, the pushing mechanism comprises a rotating groove arranged at the lower end of the pushing clamp, the rotating groove is clamped with a rotating extension head arranged on one side of the I-shaped armature, the center of the I-shaped armature is rotatably connected to the base, and the rotating extension head swings along with the I-shaped armature to enable the pushing clamp to move in the longitudinal direction. The pushing card moves in the longitudinal direction under the action of the I-shaped armature, so that the contact mechanism is driven to be opened and closed.

In foretell bifurcate reed double contact magnetism latching relay structure, electromagnetic component includes the vertical iron core that sets up in the base upper end, and the yoke is installed to the iron core upper end, and the yoke extends the head lock joint with the rotation of I shape armature upper end. The yoke iron is buckled on the I-shaped armature iron, so that the circumferential rotation angle of the I-shaped armature iron is limited, and the rotary extension head is prevented from colliding with the base.

In foretell forked reed double contact magnetism latching relay structure, the electromagnetism subassembly upper end is connected with the base upper end through the retainer plate, and the electromagnetism subassembly side is provided with clamp plate and clamp plate upper and lower extreme respectively with retainer plate and base joint. The electromagnetic component is externally provided with a pressing plate and a fixing ring, so that the connection firmness of the electromagnetic component is ensured.

In foretell forked reed double contact magnetic latching relay structure, latch mechanism is including setting up the square groove in promotion card both sides, and movable contact spring both sides upper end is provided with the card strip with square groove joint, and the card strip is buckled perpendicularly with the movable contact spring, and movable contact spring upper end both sides extend has circular arc portion, and circular arc portion buckles with the movable contact spring and the direction of buckling is opposite with the card strip, and the department of buckling and the promotion card lower extreme laminating of circular arc portion and movable contact spring. The clamping mechanism limits the relative movement of the movable spring and the pushing sheet, enhances the stability of the product in the action process, and improves the stability and the action reliability of the product.

In the bifurcate reed double-contact magnetic latching relay structure, the widths of two movable bifurcate parts at the upper end of the movable reed are different, and the widths of two static bifurcate parts at the upper end of the static reed are different. The movable fork-shaped part and the static fork-shaped part with different widths are convenient for installing contacts with different sizes.

Compared with the prior art, the utility model has the advantages of: the parallel contact mechanism can resist larger surge current, thereby improving the working reliability and the electrical service life of the product; the splicing mechanism ensures the connection stability of the forked dynamic spring and the forked static spring with the base, so that the forked dynamic spring is firmly connected with the base when being bent; the pushing card moves only in the longitudinal direction under the limitation of the clamping mechanism, and the response of opening and closing of the contact mechanism is ensured to be sensitive.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic structural view of another viewing angle of the present invention;

fig. 3 is a schematic structural view of another viewing angle of the present invention;

fig. 4 is a schematic structural view of the base of the present invention;

fig. 5 is a schematic structural view of the bifurcated static spring of the present invention;

fig. 6 is a schematic structural view of another view of the bifurcated stationary spring of the present invention;

fig. 7 is a schematic structural view of the bifurcated movable spring of the present invention;

fig. 8 is a schematic structural view of another view of the bifurcated moving spring of the present invention;

fig. 9 is a schematic structural view of the latch mechanism of the present invention;

fig. 10 is a schematic structural view of the push card of the present invention;

in the figure, a base 1, an i-shaped armature 11, a rotary extension head 12, a plug mechanism 2, a first plug group 21, a movable spring insertion strip 211, a first fixing groove 212, a second fixing groove 213, an insertion hole 214, a plug 215, an insertion groove 216, an arc-shaped clamping groove 217, a second plug group 22, a static spring insertion strip 221, a third fixing groove 222, a fixing piece 223, a forked movable spring 3, a movable spring leg 31, a movable spring 32, a movable forked portion 33, a forked static spring 4, a static spring 41, a static forked portion 42, a pushing clamp 5, a clamping mechanism 6, a square groove 61, a clamping strip 62, an arc portion 63, a pushing mechanism 7, a rotary groove 71, an electromagnetic assembly 8, an iron core 81, a yoke 82, a fixing ring 83, a pressing plate 84, a contact mechanism 9, a silver alloy contact 91, a high-temperature resistant static contact 92, a silver alloy movable contact 93, a high-temperature resistant movable contact 94, a large contact spacing 95 and a small contact spacing 96.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-10, the bifurcate reed double-contact magnetic latching relay structure comprises a base 1, the base 1 is provided with a bifurcate movable spring 3 and a bifurcate static spring 4 through an inserting mechanism 2, the bifurcate movable spring 3 is connected with a pushing clamp 5 through a clamping mechanism 6, the pushing clamp 5 is buckled with an I-shaped armature 11 rotatably connected to the base 1 through a pushing mechanism 7, the I-shaped armature 11 is buckled with an electromagnetic component 8 arranged on the base 1, a contact mechanism 9 is arranged between the bifurcate movable spring 3 and the bifurcate static spring 4, the contact mechanism 9 is arranged on one side of the bifurcate static spring 4 opposite to the bifurcate movable spring 3, the bifurcate static spring 4 comprises a static spring 41 inserted on the base 1, the upper end of the static spring 41 is connected with two separated static bifurcate parts 42, a silver alloy static contact 91 and a high-temperature resistant static contact 92 are respectively riveted on the static bifurcate part 42, the bifurcate movable spring 3 comprises a movable spring leg 31 inserted on the base 1 and a vertical riveted The upper end of the movable spring piece 32 is connected with two separated movable fork parts 33, the movable fork parts 33 are respectively riveted with a silver alloy movable contact 93 opposite to the silver alloy fixed contact 91 and a high-temperature resistant movable contact 94 opposite to the high-temperature resistant fixed contact 92, the heights of the high-temperature resistant fixed contact 92 and the silver alloy fixed contact 91 are equal, and the height of the high-temperature resistant movable contact 94 is lower than that of the silver alloy movable contact 93. When the relay acts, when the high-temperature resistant movable contact 94 and the silver alloy movable contact 93 move towards the fixed contact simultaneously, the high-temperature resistant movable contact 94 and the high-temperature resistant fixed contact 92 with the small contact interval 96 are firstly contacted and closed, the silver alloy fixed contact 91 with the large contact interval 95 and the silver alloy movable contact 93 are then closed, and at the moment, the contact mechanism 9 of the relay is completely closed; when the relay is reset, the high temperature resistant moving contact 94 and the silver alloy moving contact 93 move towards the direction far away from the fixed contact, the large contact interval 95 is disconnected firstly, the small contact interval 96 is disconnected later, and the contact mechanism 9 is disconnected completely.

Specifically, a large contact distance 95 is provided between the silver alloy stationary contact 91 and the silver alloy moving contact 93, and a small contact distance 96 is provided between the high temperature resistant stationary contact 92 and the high temperature resistant moving contact 94. When the bifurcate stationary spring 4 is bent toward the bifurcate movable spring 3, the width of the large contact pitch 95 is larger than the width of the small contact pitch 96, and when the contact mechanism 9 is in the fully expanded state, the widths of the large contact pitch 95 and the small contact pitch 96 are equal.

In addition, the plug-in mechanism 2 includes a first plug-in group 21 disposed between the bifurcated movable spring 3 and the base 1 and a second plug-in group 22 disposed between the bifurcated stationary spring 4 and the base 1. The first plug group 21 and the second plug group 22 of the plug mechanism 2 are arranged in parallel on one side of the base 1.

Deeply, the first plugging group 21 includes a movable spring inserting bar 211 extending downwards from two sides of the movable spring leg 31, a first fixing groove 212 for plugging the movable spring leg 31 and a second fixing groove 213 for plugging the movable spring leg 32 are formed in the base 1, a jack 214 opposite to the movable spring inserting bar 211 is arranged at the lower end of the first fixing groove 212, a plurality of plugs 215 are arranged in the middle of the lower end of the movable spring leg 32, a plurality of slots 216 are arranged in the middle of the lower end of the movable spring leg 31, and a plurality of arc-shaped slots 217 are respectively distributed on two sides of the movable spring leg 31. The first fixing groove 212 and the second fixing groove 213 are connected with a forked movable spring 3, the movable spring insertion strip 211 is inserted into the insertion hole 214, and the movable spring insertion strip 211 is externally connected with a lead.

Meanwhile, the second inserting set 22 includes a static spring inserting strip 221 extending from the lower ends of the two sides of the static spring 41 and bending downward to form an L shape, a third fixing groove 222 for inserting the static spring 41 is formed on the base 1, fixing pieces 223 attached to the inner sides of the third fixing grooves 222 are respectively arranged on the two sides of the static spring 41, and a plurality of inserting grooves 216 are formed in the middle of the lower end of the static spring 41. The static spring inserting bar 221 is inserted into the third fixing groove 222, and the bifurcated static spring 4 is inserted into the base 1.

Further, the pushing mechanism 7 includes a rotating groove 71 disposed at the lower end of the pushing card 5, the rotating groove 71 is clamped with a rotating extension head 12 disposed at one side of the i-shaped armature 11, the center of the i-shaped armature 11 is rotatably connected to the base 1, and the rotating extension head 12 swings with the i-shaped armature 11 to move the pushing card 5 in the longitudinal direction. The I-shaped armature 11 swings under the driving of the electromagnetic component 8, the rotary extension head 12 rotates relative to the push card 5, and the push card 5 moves along the longitudinal direction at the moment.

Furthermore, the electromagnetic assembly 8 includes an iron core 81 vertically disposed on the upper end of the base 1, a yoke 82 is mounted on the upper end of the iron core 81, and the yoke 82 is fastened to the rotary extension head 12 on the upper end of the i-shaped armature 11. The yoke 82 is fixedly connected with the electromagnetic assembly 8, and one end of the yoke 82 is hooked with the rotary extension head 12 to limit the swing angle of the I-shaped armature 11.

Obviously, the upper end of the electromagnetic assembly 8 is connected with the upper end of the base 1 through a fixing ring 83, a pressing plate 84 is arranged on the side surface of the electromagnetic assembly 8, and the upper end and the lower end of the pressing plate 84 are respectively clamped with the fixing ring 83 and the base 1. The fixing ring 83 is sleeved on the outer side of the upper end of the iron core 81 and connected with the base 1, and the pressing plate 84 is vertically installed relative to the base 1.

Visibly, the clamping mechanism 6 comprises square grooves 61 arranged on two sides of the push card 5, clamping strips 62 clamped with the square grooves 61 are arranged at the upper ends of two sides of the movable spring leaf 32, the clamping strips 62 are perpendicularly bent with the movable spring leaf 32, arc parts 63 extend from two sides of the upper end of the movable spring leaf 32, the arc parts 63 are bent with the movable spring leaf 32, the bending direction is opposite to that of the clamping strips 62, and the bending parts of the arc parts 63 and the movable spring leaf 32 are attached to the lower end of the push card 5. The lower end of the clamping strip 62 is attached to the upper end of the push card 5, and the arc part 63 and the clamping strip 62 limit the push card 5 to jump in the vertical direction.

Preferably, the two movable branch parts 33 at the upper end of the movable spring plate 32 have different widths, and the two static branch parts 42 at the upper end of the static spring plate 41 have different widths. The movable branch part 33 and the static branch part 42 are made of copper alloy with good elasticity and conductivity, and the base 1 is made of plastic with good insulation.

In summary, the principle of the present embodiment is: the contact mechanism 9 adopts a mode that a silver alloy fixed contact 91 is connected with a silver alloy moving contact 93 in parallel and a high-temperature resistant fixed contact 92 is connected with a high-temperature resistant moving contact 94 in parallel, wherein the height of the high-temperature resistant moving contact 94 is lower than that of the silver alloy moving contact 93, when the contact mechanism 9 is closed, the high-temperature resistant fixed contact 92 and the high-temperature resistant moving contact 94 are firstly connected along with the bending of the forked moving spring 3 to bear larger surge current, and then the silver alloy fixed contact 91 and the silver alloy moving contact 93 are connected to form smaller steady-state current; when the contact mechanism 9 is turned off, the silver alloy fixed contact 91 and the silver alloy movable contact 93 which are turned on later are turned off first by the pushing card 5, and the high temperature resistant fixed contact 92 which is turned on first is turned off the high temperature resistant movable contact 94 forcibly by the pushing card 5.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms of the base 1, the i-shaped armature 11, the rotary extension 12, the plug mechanism 2, the first plug group 21, the movable spring strip 211, the first fixing groove 212, the second fixing groove 213, the insertion hole 214, the plug 215, the insertion groove 216, the arc-shaped clamping groove 217, the second plug group 22, the stationary spring strip 221, the third fixing groove 222, the fixing piece 223, the bifurcated movable spring 3, the movable spring leg 31, the movable spring 32, the movable leg 33, the bifurcated stationary spring 4, the stationary spring 41, the stationary bifurcated portion 42, the pushing clamp 5, the clamping mechanism 6, the square groove 61, the clamping strip 62, the circular arc portion 63, the pushing mechanism 7, the rotary groove 71, the electromagnetic assembly 8, the iron core 81, the yoke 82, the fixing ring 83, the pressing plate 84, the contact mechanism 9, the silver alloy stationary contact 91, the high temperature resistant stationary contact 92, the silver alloy movable contact 93, the high temperature resistant movable contact 94, the large contact interval 95, the small contact interval 96, and the like are used more herein, but does not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims (10)

1. A bifurcate reed double-contact magnetic latching relay structure comprises a base (1), wherein a bifurcate movable spring (3) and a bifurcate static spring (4) are installed on the base (1) through an inserting mechanism (2), the bifurcate movable spring (3) is connected with a pushing clamp (5) through a clamping mechanism (6), the pushing clamp (5) is buckled with an I-shaped armature (11) rotatably connected to the base (1) through a pushing mechanism (7), the I-shaped armature (11) is buckled with an electromagnetic component (8) arranged on the base (1), a contact mechanism (9) is arranged between the bifurcate movable spring (3) and the bifurcate static spring (4), the contact mechanism (9) is arranged on one side, opposite to the bifurcate movable spring (3), of the bifurcate static spring (4) comprises a static spring (41) inserted on the base (1), the upper end of the static reed (41) is connected with two separated static fork parts (42), the static bifurcation part (42) is respectively riveted with a silver alloy static contact (91) and a high temperature resistant static contact (92), the bifurcation type movable spring (3) comprises a movable spring foot (31) spliced on the base (1) and a movable spring leaf (32) vertically riveted at one side of the movable spring foot (31), the upper end of the movable spring (32) is connected with two separated movable fork parts (33), the movable fork part (33) is respectively riveted with a silver alloy movable contact (93) opposite to the silver alloy static contact (91) and a high temperature resistant movable contact (94) opposite to the high temperature resistant static contact (92), the height of the high-temperature resistant static contact (92) is equal to that of the silver alloy static contact (91), the height of the high-temperature resistant moving contact (94) is lower than that of the silver alloy moving contact (93).

2. The bifurcate reed dual-contact magnetic latching relay structure of claim 1, wherein a large contact distance (95) is provided between the silver alloy stationary contact (91) and the silver alloy moving contact (93), and a small contact distance (96) is provided between the high temperature resistant stationary contact (92) and the high temperature resistant moving contact (94).

3. The bifurcate reed dual-contact magnetic latching relay structure according to claim 1 or 2, wherein the plug-in mechanism (2) comprises a first plug-in group (21) disposed between the bifurcate movable reed (3) and the base (1) and a second plug-in group (22) disposed between the bifurcate static reed (4) and the base (1).

4. The bifurcate reed double-contact magnetic latching relay structure according to claim 3, wherein the first plug group (21) comprises a movable reed plug strip (211) extending downwards from two sides of the movable reed pin (31), the base (1) is provided with a first fixing groove (212) for plugging the movable reed pin (31) and a second fixing groove (213) for plugging the movable reed (32), the lower end of the first fixing groove (212) is provided with a jack (214) opposite to the movable reed plug strip (211), the middle part of the lower end of the movable reed (32) is provided with a plurality of plugs (215), the middle part of the lower end of the movable reed pin (31) is provided with a plurality of slots (216), and two sides of the movable reed pin (31) are respectively distributed with a plurality of arc-shaped slots (217).

5. The bifurcate reed double-contact magnetic latching relay structure according to claim 4, wherein the second plug group (22) comprises a static reed plug (221) extending from the lower ends of the two sides of the static reed (41) and bent downward into an L shape, a third fixing groove (222) for plugging the static reed (41) is formed in the base (1), fixing pieces (223) attached to the inner sides of the third fixing grooves (222) are respectively arranged on the two sides of the static reed (41), and a plurality of slots (216) are formed in the middle of the lower end of the static reed (41).

6. The bifurcate reed double-contact magnetic latching relay structure according to claim 1, wherein the pushing mechanism (7) comprises a rotating groove (71) arranged at the lower end of the pushing card (5), the rotating groove (71) is clamped with a rotating extension head (12) arranged on one side of an I-shaped armature (11), the center of the I-shaped armature (11) is rotatably connected to the base (1), and the rotating extension head (12) swings with the I-shaped armature (11) to enable the pushing card (5) to move in the longitudinal direction.

7. The bifurcate reed double-contact magnetic latching relay structure of claim 6, wherein the electromagnetic assembly (8) comprises an iron core (81) vertically arranged at the upper end of the base (1), a yoke (82) is mounted at the upper end of the iron core (81), and the yoke (82) is fastened with a rotary extension head (12) at the upper end of the I-shaped armature (11).

8. The bifurcate reed double-contact magnetic latching relay structure according to claim 7, wherein the upper end of the electromagnetic component (8) is connected with the upper end of the base (1) through a fixing ring (83), a pressing plate (84) is arranged on the side surface of the electromagnetic component (8), and the upper end and the lower end of the pressing plate (84) are respectively clamped with the fixing ring (83) and the base (1).

9. The bifurcate reed double-contact magnetic latching relay structure according to claim 1, wherein the latching mechanism (6) comprises a square groove (61) arranged on both sides of the push card (5), a clamping strip (62) clamped with the square groove (61) is arranged on the upper end of both sides of the movable reed (32), the clamping strip (62) is perpendicularly bent with the movable reed (32), an arc part (63) extends from both sides of the upper end of the movable reed (32), the bending direction of the arc part (63) and the movable reed (32) is opposite to that of the clamping strip (62), and the bending positions of the arc part (63) and the movable reed (32) are attached to the lower end of the push card (5).

10. The bifurcate reed dual-contact magnetic latching relay structure of claim 1, wherein the widths of the two movable bifurcate parts (33) at the upper ends of the movable reeds (32) are different, and the widths of the two static bifurcate parts (42) at the upper ends of the static reeds (41) are different.

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