CN209981115U

CN209981115U - Small-size high-voltage-resistance electromagnetic relay

Info

Publication number: CN209981115U
Application number: CN201921006326.XU
Authority: CN
Inventors: 王照杉; 谭忠华; 李东侠
Original assignee: Xiamen Hongdian Acoustic Co Ltd
Current assignee: Xiamen Hongdian Acoustic Co Ltd
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2020-01-21
Anticipated expiration: 2029-06-28

Abstract

The utility model discloses a small-volume high-voltage-resistance electromagnetic relay, which comprises a shell, a base, a movable reed, a static reed, a pushing card and a magnetic circuit part; the shell is connected with the base; the bottoms of the static spring, the movable spring and the magnetic circuit part are respectively arranged on the base, and the pushing clamp is matched between the movable spring and the magnetic circuit part; a larger distance is arranged between the movable spring plate and the static spring; the base is equipped with the high wall to the protruding stretching that makes progress, promotes the card including vertical and horizontal connection in the catch arm of vertical, the top of the vertical of propelling movement card is rotationally adorned at the top of the high wall of base through the pivot, and the catch arm of propelling movement card cooperatees with the position that is close to the root of movable contact spring. The utility model discloses can enough realize that the height under the little volume condition is withstand voltage, can avoid the early fatigue rupture that the movable contact spring caused because of the big stroke motion again to and avoid taking place under the condition that great vibration is strikeed and push the card and drop and arouse the phenomenon emergence that the product became invalid.

Description

Small-size high-voltage-resistance electromagnetic relay

Technical Field

The utility model relates to a relay technical field especially relates to a little volume high withstand voltage electromagnetic relay.

Background

A relay is an electronic control device having a control system (also called an input loop) and a controlled system (also called an output loop), which is commonly used in automatic control circuits, and which is actually an "automatic switch" that uses a small current to control a large current. Therefore, the circuit plays the roles of automatic regulation, safety protection, circuit conversion and the like.

The electromagnetic relay has been widely used in various fields, and in some application fields, the withstand voltage between contacts, between contacts and coils, and between contacts has higher requirements, for example, in the application of 5G power system, there is higher requirement for the electromagnetic relay, it is usually required that the lightning strike resistant voltage for disconnecting contacts should satisfy more than 10KV, if two or more contact groups are involved, the lightning strike resistant voltage between contact groups should also satisfy more than 10KV, and the lightning strike resistant voltage between contacts and coils should also satisfy more than 10KV, the electromagnetic relay in the prior art can not satisfy the above requirements, in the prior art, the products with withstand voltage of more than 10KV are realized by using circuit breakers, the circuit breakers have large volume and high price, while the 5G power system equipment is mainly installed in street lamp posts, building outer walls, etc., the required volume is smaller, and the number of control relays applied to a single 5G power supply is larger, so that the volume is required to be small enough, the smaller the control relay is, and the circuit breaker in the prior art cannot be adopted. Therefore, it is urgently needed to design a small-sized high-voltage-resistance electromagnetic relay to be suitable for applications such as a 5G power system, and the electromagnetic relay needs to have 10KV voltage-resistance capability, and needs to have a relatively large movement stroke of the movable spring, so that the mechanical fatigue property is rapidly reduced, the movable spring of the existing structure is easily subjected to early fatigue fracture, and the push clamp of the existing technology is difficult to realize large-stroke movement for pushing the movable spring under a compact structure, and in addition, after the movement stroke is large, the phenomenon that the push clamp falls off and causes product failure is easily caused under the condition of large vibration impact.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide a little volume high withstand voltage electromagnetic relay, through institutional advancement, can enough realize the high withstand voltage under the little volume condition, can avoid the early fatigue rupture that the movable contact spring caused because of big stroke motion again to and avoid taking place to push the phenomenon that the card drops and arouse the product inefficacy under the condition of great vibration impact and take place.

The utility model provides a technical scheme that its technical problem adopted is: a small-volume high-voltage-resistance electromagnetic relay comprises a shell, a base, a movable reed, a static reed, a pushing clamp and a magnetic circuit part; the shell is connected with the base; the bottoms of the static spring, the movable spring and the magnetic circuit part are respectively arranged on the base, and the push clamp is matched between the movable spring and the magnetic circuit part; a larger distance is arranged between the movable spring and the static spring so as to increase the distance between the contacts and meet the requirement of high voltage resistance between the disconnected contacts; the base is equipped with the high wall to the protruding stretching that makes progress, promote the card include vertical and horizontal connection in the catch arm of vertical, the top of the vertical of promotion card rotationally adorns at the top of the high wall of base through the pivot, the catch arm of promotion card cooperatees with the position that is close to the root of movable contact spring to the little apart from the action that utilizes the promotion card removes the big interval action that realizes the movable contact spring, thereby the big clearance requirement between the adaptation contact.

The movable spring is obliquely arranged in the direction away from the static spring so as to increase the distance between the contacts and meet the requirement of high voltage resistance between the disconnected contacts.

The push card is L-shaped, and the vertical piece of the push card is the L-shaped vertical side of the push card; the pushing arm is the L-shaped horizontal side of the pushing card, so that the movable spring leaf is pushed by the maximum radius of the pushing card.

The movable spring plate is L-shaped, the L-shaped vertical side of the movable spring plate is obliquely arranged, and the L-shaped horizontal side of the movable spring plate is fixed on the base.

And a bending part for shifting the top of the L-shaped vertical side of the movable spring piece to the direction of the static spring is also arranged in the vertical side of the L-shaped vertical side of the movable spring piece.

The movable spring is characterized by further comprising a movable spring leading-out pin, wherein the movable spring leading-out pin is inverted L-shaped, and the L-shaped horizontal side of the movable spring leading-out pin is overlapped on the L-shaped horizontal side of the movable spring plate and is fixed through riveting; the vertical side of the L shape of the leading-out foot of the movable spring is arranged downwards.

The movable spring pieces and the static springs are respectively two or more, and the two or more movable spring pieces and the static springs are respectively arranged side by side along the closing or opening direction of the contact and are correspondingly matched; two or more than two pushing arms are arranged side by side on the L-shaped horizontal side of the pushing card and are respectively matched with the corresponding movable spring pieces.

The base is provided with a high-wall slot, and the static spring is inserted into the high-wall slot corresponding to the base so as to meet the high-pressure resistant requirement between the movable spring leaf and the static spring.

In the base, a first protruding part is arranged between two adjacent movable springs and adjacent static springs, and the first protruding part is provided with a downward-sunken isolation groove; in the shell, a first partition wall protruding downwards is arranged between the two adjacent movable springs and the adjacent static springs; when the shell is matched with the base, the first isolation wall of the shell is inserted into the isolation groove of the base, so that the two adjacent movable spring pieces and the adjacent static springs are completely isolated, and the high-pressure resistant requirements between the adjacent static springs and between the adjacent movable spring pieces are met.

A second partition wall which protrudes downwards is arranged in the shell between the movable spring leaf and the push card; when the shell is matched with the base, the second isolation wall of the shell is blocked between the movable spring plate and the pushing card, so that the high-voltage resistance requirement between the contact and the coil is met; the bottom of the second isolation wall is provided with a through hole or a notch through which a pushing arm of the pushing card can pass.

The magnetic circuit part comprises a coil rack, an enameled wire, an iron core, a yoke and an armature; the iron core is arranged in the through hole of the coil frame, the through hole of the coil frame is vertically installed, the enameled wire is wound on the coil frame, the yoke is L-shaped, one side of the L-shaped level of the yoke is fixed with the bottom end of the iron core, the top of one side of the L-shaped level of the yoke is set as a knife edge, the armature is bent into an approximate L-shaped shape, the bending part of the armature is matched with the knife edge of the yoke, one side of the L-shaped level of the armature is matched with a pole face of the top of the iron core, and one side of the L-shaped level of the armature is matched with the pushing card.

The top on the vertical one side of the L type of yoke is equipped with the recess of undercut, and the kink adaptation of armature is in the recess, the edge of a knife is the tank bottom of recess, the top of coil former is equipped with the slot, and a pressure spring cartridge is fixed in the slot at the top of coil former, and the pressure spring is equipped with the tongue piece, and the tongue piece of pressure spring supports in the kink of armature and presses the kink of armature in the recess of yoke.

And the base is provided with a third partition wall in an upward protruding mode, and the third partition wall is partitioned between the L-shaped vertical edge of the armature and the L-shaped vertical edge of the yoke.

A first convex rib and a second convex rib are respectively arranged downwards at the positions corresponding to the armature iron and the yoke iron in the shell; when the shell is matched with the base, the first convex rib of the shell is close to the armature, the armature is limited by upward movement, and the second convex rib of the shell is close to the yoke, so that the magnetic circuit part is prevented from upward movement.

And one surface of the L-shaped vertical side of the push card, which faces the armature iron, is also provided with a nose girder type convex rib so as to facilitate the assembly of the armature iron and realize automation.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the movable spring is arranged in an inclined way towards the direction far away from the static spring, so that the distance between the contacts can be increased, and the high-voltage resistance requirement between the disconnected contacts is met; the bottom of the movable spring is fixed on the base, so that the mechanical fatigue resistance of the movable spring can be improved; the base is equipped with the high wall to the epirelief, promotes the card including vertical and horizontal connection in the catch arm of vertical, the top of the vertical of propelling movement card is rotationally adorned at the top of the high wall of base through the pivot, can prevent to cause under the great vibration impact to promote the card and drop, and the catch arm that will promote the card cooperatees with the position that is close to the root of movable contact spring, can utilize the little apart from action that promotes the card to remove the big interval action that realizes the movable contact spring to the big clearance requirement between the adaptation contact. The utility model discloses a high withstand voltage under the little volume condition can enough be realized to this kind of structure, can avoid the early fatigue rupture that the movable contact spring caused because of big stroke motion again to and avoid taking place to push away the phenomenon that the card drops and arouse the product inefficacy and take place under the condition that great vibration is strikeed.

2. The movable spring is designed into the L-shaped shape, the vertical side of the L-shaped of the movable spring is obliquely arranged, and the horizontal side of the L-shaped of the movable spring is fixed on the base, so that the mechanical fatigue resistance of the movable spring can be improved; the utility model discloses owing to adopted and to promote the card design and be L type shape to can utilize the biggest radius of promoting the card to remove to promote the movable contact spring.

3. The utility model discloses owing to adopted to be equipped with high wall slot on the base, peg graft the quiet spring in the high wall slot that the base corresponds, in the quiet spring, only the part that is equipped with the stationary contact exposes, and other parts all are surrounded by the plastics of base, form the effective isolation between movable contact spring and the quiet spring, can satisfy the high pressure resistant requirement between movable contact spring and the quiet spring.

4. The utility model adopts the structure that the first protruding part is arranged between the two adjacent movable springs and the adjacent static springs in the base, and the first protruding part is provided with the downward sunken isolation groove; in the shell, a first partition wall protruding downwards is arranged between the two adjacent movable springs and the adjacent static springs; when the shell is matched with the base, the first isolation wall of the shell is inserted into the isolation groove of the base, through the matching of the first isolation wall and the isolation groove, two adjacent movable springs can be completely isolated, meanwhile, two adjacent static springs are also completely isolated, and the complete isolation between the contact groups is equivalently realized, so that the high-voltage-resistant requirements between the adjacent static springs and between the adjacent movable springs are met, and the high-voltage-resistant requirements between the contact groups are also met.

5. The utility model adopts the second separation wall which is arranged in the shell and extends downwards and corresponds to the space between the movable spring leaf and the pushing card; the utility model discloses utilize the second division wall to realize the isolation between contact and the coil, can satisfy the high pressure resistant requirement between contact and the coil.

6. The utility model adopts the structure that the first convex rib and the second convex rib are respectively arranged downwards at the positions corresponding to the armature iron and the yoke iron in the shell; the utility model discloses utilize first protruding muscle to upwards cluster to move armature and carry on spacingly, utilize the protruding muscle of second to prevent that the magnetic circuit part from upwards clustering.

7. The utility model discloses owing to adopted the orientation on one side of the vertical of the L type that promotes the card the one side of armature still is equipped with the protruding muscle of nose beam type, utilizes the guide effect of the protruding muscle of nose beam type, and the armature of being convenient for is packed into from the top down, makes the automatic assembly of being convenient for of whole product.

The present invention will be described in further detail with reference to the accompanying drawings and examples; however, the present invention is not limited to the embodiment.

Drawings

Fig. 1 is a top view of an embodiment of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1;

FIG. 4 is a schematic perspective view of an embodiment of the present invention (without the housing);

FIG. 5 is a schematic perspective view (rotated by an angle) of an embodiment of the present invention (without the housing);

fig. 6 is a front view of an embodiment of the present invention (without the housing);

fig. 7 is a side view of an embodiment of the present invention (without the housing);

fig. 8 is a top view of an embodiment of the present invention (without the housing);

FIG. 9 is a sectional view taken along line C-C of FIG. 8;

fig. 10 is a sectional view taken along line D-D in fig. 8.

Detailed Description

Examples

Referring to fig. 1 to 10, the small-sized high withstand voltage electromagnetic relay of the present invention includes a housing 1, a base 2, a movable spring 3, a stationary spring 4, a push clip 5, and a magnetic circuit portion 6; the shell 1 is connected with the base 2; the bottoms of the static spring 4, the movable spring piece 3 and the magnetic circuit part 6 are respectively arranged on the base 2 and are contained in the shell 1, and the push card 5 is matched between the movable spring piece 3 and the magnetic circuit part 6; in this embodiment, the movable spring plate 3 is L-shaped, and the vertical side 31 of the L-shape of the movable spring plate 3 is inclined to increase the distance between the contacts, so as to meet the requirement of high voltage resistance between the disconnected contacts; the L-shaped horizontal side 32 of the movable reed 3 is inserted and fixed on the base 2; the base 2 is provided with a high wall 21 (which is a side wall higher than the bottom surface of the base) in an upward protruding manner, in the embodiment, the push card 5 is L-shaped, the top of the L-shaped vertical side 51 of the push card is rotatably mounted on the top of the high wall 21 of the base 2 through a rotating shaft 52, and the L-shaped horizontal side 53 of the push card 5 is used as a push arm to be matched with the middle lower part of the vertical side 31 of the movable spring 3, so that the small-distance action of the push card 5 is utilized to realize the large-distance action of the movable spring 3, and the requirement of large gaps between contacts is met.

In the present embodiment, the L-shaped vertical side 31 of the movable spring piece 3 is further provided with a bent portion 311 that shifts the top of the L-shaped vertical side of the movable spring piece in the static spring direction.

In this embodiment, the electromagnetic relay further includes a movable spring leading pin 33, the movable spring leading pin 33 is of an inverted L shape, and the L-shaped horizontal side 331 of the movable spring leading pin 33 is overlapped on the L-shaped horizontal side 32 of the movable spring 3 and fixed by caulking; the vertical side 332 of the L-shape of the movable spring lead-out leg 33 is disposed downward as one of the electrical connection portions with the outside.

In this embodiment, the number of the movable spring pieces 3 and the number of the static springs 4 are two, which is equivalent to a left movable spring piece, a right movable spring piece, a left static spring piece and a right static spring piece, the two movable spring pieces 3 and the two static springs 4 are respectively arranged side by side along the closing or opening direction of the contact and are correspondingly matched with each other, the closing or opening direction of the contact is taken as the length direction of the relay, the two movable spring pieces 3 are arranged along the width direction of the relay, and the two movable spring pieces 4 are also arranged along the width direction of the relay; two pushing arms 53 are arranged side by side on the horizontal side of the L-shaped pushing card 5 and are respectively matched with the corresponding movable reeds 3.

In this embodiment, the base 2 is provided with two high-wall slots 22, and the two static springs 4 are respectively inserted into the high-wall slots 22 corresponding to the base, so as to meet the requirement of high pressure resistance between the movable spring piece 3 and the static springs 4.

In this embodiment, in the base 2, a first protruding portion 23 is further disposed between two adjacent movable springs and adjacent static springs, and the first protruding portion 23 is provided with a separation groove 231 recessed downward; in the shell 1, a first partition wall 11 which protrudes downwards is arranged between two adjacent movable springs and adjacent static springs; when the housing 1 is matched with the base 2, the first partition wall 11 of the housing 1 is inserted into the partition groove 231 of the base, so that the two adjacent movable springs and the adjacent static springs are completely separated, and the high-pressure resistant requirements between the adjacent static springs and between the adjacent movable springs are met.

In this embodiment, a second partition wall 12 protruding downward is further provided in the housing 1 between the movable spring 3 and the push card 5; when the shell 1 is matched with the base 2, the second isolation wall 12 of the shell is blocked between the movable reed 3 and the push card 5, so that the high-voltage resistance requirement between the contact and the coil is met; the bottom of the second partition wall 12 is provided with a notch 121 through which the pushing arm 53 of the pushing card 5 can pass.

In the present embodiment, the magnetic circuit portion 6 includes a bobbin 61, an enamel wire, an iron core 62, a yoke 63, and an armature 64; the iron core 62 is arranged in the through hole of the coil frame 61, the through hole of the coil frame is vertically arranged, the enameled wire is wound on the coil frame 61, the yoke iron 63 is L-shaped, the horizontal side 631 of the L-shape of the yoke iron 63 is fixed with the bottom end of the iron core 62, the top of the vertical side 632 of the L-shape of the yoke iron 63 is a knife edge, the armature 64 is bent into a general L-shape, the bent part of the armature 64 is matched with the knife edge of the yoke iron, the horizontal side 641 of the L-shape of the armature is matched with the pole surface of the top of the iron core 62, and the vertical side 642 of the L-shape of the armature is matched with the pushing card 5.

In this embodiment, a concave groove 633 is formed at the top of the L-shaped vertical side 632 of the yoke, the bent portion of the armature 64 fits into the groove 633, the knife edge is the groove bottom of the groove, an insertion groove is formed at the top of the coil frame 61, a compression spring 65 is inserted and fixed into the insertion groove at the top of the coil frame 61, the compression spring 65 is provided with a tongue 651, and the tongue 651 of the compression spring abuts against the bent portion of the armature and presses the bent portion of the armature into the groove 633 of the yoke.

In this embodiment, the base 2 is provided with a third partition wall 24 protruding upward, and the third partition wall 24 is partitioned between an L-shaped vertical side 642 of the armature and an L-shaped vertical side 632 of the yoke.

In the embodiment, a first rib 13 and a second rib 14 are respectively arranged downwards at the positions corresponding to the armature iron and the yoke iron in the shell 1; when the housing 1 is matched with the base 2, the first rib 13 of the housing is close to the bending part of the armature 64 to limit the upward movement of the armature 64, and the second rib 14 of the housing 1 is close to the top end of the L-shaped vertical side 632 of the yoke 63 to prevent the upward movement of the magnetic circuit part 6.

In this embodiment, a nose-beam-type rib 511 is further provided on a side of the L-shaped vertical side 51 of the push card 5 facing the armature, so as to facilitate assembly of the armature 64, thereby realizing automation.

During assembly, the movable spring piece 3 is riveted with the movable contact and then riveted with the movable spring leading-out pin 33 to form a movable spring part (comprising a left movable spring part and a right movable spring part); riveting the static spring 4 and the static contact into a static spring part (comprising a left static spring part and a right static spring part); inserting the movable spring part and the static spring part into the base 2 from top to bottom; winding the coil frame 61, the enameled wire and the coil terminal into a coil; then, the iron core 62 and the yoke 63 are fitted into the coil and riveted to form a main body portion of the magnetic circuit portion; the push card 5 is arranged in the base 2 through a rotating shaft; the main body part of the magnetic circuit part is arranged in the base 2 from top to bottom, then the armature 64 is arranged in the main body part of the magnetic circuit part from top to bottom, and then the compression spring 65 is arranged from top to bottom to assemble the main body part of the relay; and finally, the shell 1 is sleeved into the main body part of the relay from top to bottom to form the complete relay.

The utility model discloses a little volume high withstand voltage electromagnetic relay, adopted and designed movable contact spring 3 into L type shape, and the vertical one side 31 of the L type of movable contact spring is the slope setting, can increase the distance between the contact like this, satisfy the high pressure resistant requirement between the disconnection contact; the L-shaped horizontal side 32 of the movable spring plate is fixed on the base 2, so that the mechanical fatigue resistance of the movable spring plate can be improved; the base 2 is provided with a high wall 21 in an upward protruding mode, the push card 5 is L-shaped, the top of the L-shaped vertical side 51 of the push card 5 is rotatably arranged at the top of the high wall 21 of the base through a rotating shaft 52, the push card can be prevented from falling off under the action of large vibration impact, the horizontal side 53 of the L-shaped push card is used as a push arm to be matched with the middle lower part of the vertical side 31 of the movable spring piece 3, the movable spring piece can be pushed by utilizing the maximum radius of the push card, and the large-interval action of the movable spring piece 3 can be realized by utilizing the small-interval action of the push card 5, so that the requirement of large gaps among contacts is met. The utility model discloses a high withstand voltage under the small volume condition can enough be realized to this kind of structure, can avoid the early fatigue rupture that the movable contact spring caused because of big stroke motion again (draw foot 33 design for falling the L type with the movable contact spring to fold on one side 331 of the L type's of foot 33 level of movable contact spring 3 on one side 32 of the level of the L type, press on one side 32 of the L type's of movable contact spring 3 level promptly, can improve the vertical 31 mechanical anti-fatigue ability on one side of the L type of movable contact spring 3) to and avoid taking place to push the phenomenon that the card drops and arouse the product failure under the circumstances that great vibration is strikeed and take place.

The utility model discloses a high withstand voltage electromagnetic relay of little volume, the close interval of armature 64 moves the big interval action that can drive movable contact spring 31 after armature, push away the card, the secondary of matched with is enlargied between the movable contact spring three. As shown in fig. 3, when the armature 64 acts, the L-shaped vertical side 642 of the armature 64 pushes the L-shaped vertical side 51 of the push card 5 to rotate, a contact position between the tail end of the L-shaped vertical side 642 of the armature 64 and the L-shaped vertical side 51 of the push card 5 is a first action point, a stroke of the first action point is also a stroke of the armature 64, a rotation radius of a rotating shaft from the first action point to the upper end of the push card 5 is smaller than a rotation radius of a rotating shaft from the root of the push arm 53 of the push card 5 to the upper end of the push card 5, and therefore, an action stroke of the armature 64 is smaller than an action stroke of the push arm 53 of the push card 5; that is, the stroke of the push arm 54 is greater than the stroke of the armature 64, which is the first amplification of the spacing action formed after the armature engages the push tab; the contact position of the pushing arm 54 of the pushing card 5 and the movable spring piece 31 is a second action point, the action stroke of the second action point is also the action stroke of the pushing arm 54, and as the rotating radius from the second action point to the root fixing position of the movable spring piece 31 is smaller than the rotating radius from the movable contact to the root fixing position of the movable spring piece 31, the action stroke of the movable contact is larger than the action stroke of the pushing arm 54, which is the second amplification of the spacing action formed after the pushing card is matched with the movable spring piece.

The utility model discloses a high withstand voltage electromagnetic relay of little volume has adopted to be equipped with high wall slot 22 on base 2, pegs graft quiet spring 4 in the high wall slot 22 that the base corresponds, and in quiet spring 4, only the part that is equipped with the stationary contact exposes, and other parts all are surrounded by the plastics of base, form the effective isolation between movable contact spring 3 and the quiet spring 4, can satisfy the high pressure resistant requirement between movable contact spring and the quiet spring.

The utility model discloses a small-size high-withstand-voltage electromagnetic relay, which adopts the structure that in a base 2, a first protruding part 23 is arranged between two adjacent movable springs and adjacent static springs, and the first protruding part 23 is provided with a separation groove 231 which is sunken downwards; in the shell 1, a first partition wall 11 which protrudes downwards is arranged between two adjacent movable springs and adjacent static springs; when shell 1 and base 2 cooperate, the first isolation 11 wall cartridge of shell is in the isolation slot 231 of base, through the cooperation of first isolation wall 11 and isolation slot 231, can be with two adjacent movable spring 3 complete isolations, simultaneously, also isolate two adjacent static springs 4 complete, has realized the complete isolation between the contact group equivalently to satisfy the high pressure resistant requirement between the adjacent static spring and between the adjacent movable spring, just so satisfied the high pressure resistant requirement between the contact group.

The utility model discloses a small-sized high-withstand voltage electromagnetic relay, which adopts a second isolation wall 12 which is arranged in a shell 1 and protrudes downwards between a movable spring leaf and a pushing card; the utility model discloses utilize second division wall 12 to realize the isolation between contact and the coil, can satisfy the high pressure resistant requirement between contact and the coil.

The utility model discloses a small-sized high-voltage-resistance electromagnetic relay, which adopts the structure that a first convex rib 13 and a second convex rib 14 are respectively arranged downwards at the positions corresponding to an armature and a yoke in a shell 1; the utility model discloses utilize first protruding muscle 13 to make progress string to armature 64 and move and carry on spacingly, utilize the protruding muscle 14 of second to prevent that the magnetic circuit part from upwards moving.

The utility model discloses a high withstand voltage electromagnetic relay of little volume has adopted the orientation of the vertical one side 51 of the L type that promotes card 5 the one side of armature still is equipped with the protruding muscle 511 of nose girder formula, utilizes the guide effect of the protruding muscle 511 of nose girder formula, and the armature 64 of being convenient for is packed into from the top down, makes the automatic assembly of being convenient for of whole product.

The utility model discloses a little volume high withstand voltage electromagnetic relay, between two quiet springs (be left and right quiet spring promptly), between two movable contact springs (be left and right movable contact spring promptly), between quiet spring and the movable contact spring (be between left quiet spring and left movable contact spring promptly, between right quiet spring and the right movable contact spring), between movable contact spring and the coil, its withstand voltage can all satisfy more than 10 KV. The movable spring 3 is designed into an L-shaped shape, so that the movable spring can be repeatedly mechanically operated for hundreds of thousands of times without breaking. The whole relay assembly mode is from top to bottom, the process is simple, the equipment is not complex, and the realization of automation is easy. The utility model discloses can satisfy the demand of 5G equipment to the relay to guarantee the relay product quality and the performance parameter uniformity of mass production, ensure the product quality reliability after 5G network popularizes.

The foregoing is illustrative of the preferred embodiment of the present invention and is not to be construed as limiting the invention in any way. Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. The technical solutions disclosed above can be used by those skilled in the art to make many possible variations and modifications, or to modify equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention should fall within the protection scope of the technical solution of the present invention.

Claims

1. A small-volume high-voltage-resistance electromagnetic relay comprises a shell, a base, a movable reed, a static reed, a pushing clamp and a magnetic circuit part; the shell is connected with the base; the bottoms of the static spring, the movable spring and the magnetic circuit part are respectively arranged on the base, and the push clamp is matched between the movable spring and the magnetic circuit part; the method is characterized in that: a larger distance is arranged between the movable spring and the static spring so as to increase the distance between the contacts and meet the requirement of high voltage resistance between the disconnected contacts; the base is equipped with the high wall to the protruding stretching that makes progress, promote the card include vertical and horizontal connection in the catch arm of vertical, the top of the vertical of promotion card rotationally adorns at the top of the high wall of base through the pivot, the catch arm of promotion card cooperatees with the position that is close to the root of movable contact spring to the little apart from the action that utilizes the promotion card removes the big interval action that realizes the movable contact spring, thereby the big clearance requirement between the adaptation contact.

2. The small-sized high withstand voltage electromagnetic relay according to claim 1, characterized in that: the movable spring is obliquely arranged in the direction away from the static spring so as to increase the distance between the contacts and meet the requirement of high voltage resistance between the disconnected contacts.

3. The small-volume high withstand voltage electromagnetic relay according to claim 1 or 2, characterized in that: the push card is L-shaped, and the vertical piece of the push card is the L-shaped vertical side of the push card; the pushing arm is the L-shaped horizontal side of the pushing card, so that the movable spring leaf is pushed by the maximum radius of the pushing card.

4. A small-sized high withstand voltage electromagnetic relay according to claim 3, characterized in that: the movable spring plate is L-shaped, the L-shaped vertical side of the movable spring plate is obliquely arranged, and the L-shaped horizontal side of the movable spring plate is fixed on the base.

5. The small-sized high withstand voltage electromagnetic relay according to claim 4, characterized in that: and a bending part for shifting the top of the L-shaped vertical side of the movable spring piece to the direction of the static spring is also arranged in the vertical side of the L-shaped vertical side of the movable spring piece.

6. The small-sized high withstand voltage electromagnetic relay according to claim 4, characterized in that: the electromagnetic relay also comprises a movable spring leading-out pin which is in an inverted L shape, and the L-shaped horizontal side of the movable spring leading-out pin is overlapped on the L-shaped horizontal side of the movable spring plate and is fixed by riveting; the vertical side of the L shape of the leading-out foot of the movable spring is arranged downwards.

7. The small-sized high withstand voltage electromagnetic relay according to claim 4, characterized in that: the movable spring pieces and the static springs are respectively two or more, and the two or more movable spring pieces and the static springs are respectively arranged side by side along the closing or opening direction of the contact and are correspondingly matched; two or more than two pushing arms are arranged side by side on the L-shaped horizontal side of the pushing card and are respectively matched with the corresponding movable spring pieces.

8. A small-sized high withstand voltage electromagnetic relay according to claim 1, 2 or 7, characterized in that: the base is provided with a high-wall slot, and the static spring is inserted into the high-wall slot corresponding to the base so as to meet the high-pressure resistant requirement between the movable spring leaf and the static spring.

9. The small-sized high withstand voltage electromagnetic relay according to claim 7, characterized in that: in the base, a first protruding part is arranged between two adjacent movable springs and adjacent static springs, and the first protruding part is provided with a downward-sunken isolation groove; in the shell, a first partition wall protruding downwards is arranged between the two adjacent movable springs and the adjacent static springs; when the shell is matched with the base, the first isolation wall of the shell is inserted into the isolation groove of the base, so that the two adjacent movable spring pieces and the adjacent static springs are completely isolated, and the high-pressure resistant requirements between the adjacent static springs and between the adjacent movable spring pieces are met.

10. The small-sized high withstand voltage electromagnetic relay according to claim 7, characterized in that: a second partition wall which protrudes downwards is arranged in the shell between the movable spring leaf and the push card; when the shell is matched with the base, the second isolation wall of the shell is blocked between the movable spring plate and the pushing card, so that the high-voltage resistance requirement between the contact and the coil is met; the bottom of the second isolation wall is provided with a through hole or a notch through which a pushing arm of the pushing card can pass.

11. The small-sized high withstand voltage electromagnetic relay according to claim 7, characterized in that: the magnetic circuit part comprises a coil rack, an enameled wire, an iron core, a yoke and an armature; the iron core is arranged in the through hole of the coil frame, the through hole of the coil frame is vertically installed, the enameled wire is wound on the coil frame, the yoke is L-shaped, one side of the L-shaped level of the yoke is fixed with the bottom end of the iron core, the top of one side of the L-shaped level of the yoke is set as a knife edge, the armature is bent into an approximate L-shaped shape, the bending part of the armature is matched with the knife edge of the yoke, one side of the L-shaped level of the armature is matched with a pole face of the top of the iron core, and one side of the L-shaped level of the armature is matched with the pushing card.

12. The small-sized high withstand voltage electromagnetic relay according to claim 11, characterized in that: the top on the vertical one side of the L type of yoke is equipped with the recess of undercut, and the kink adaptation of armature is in the recess, the edge of a knife is the tank bottom of recess, the top of coil former is equipped with the slot, and a pressure spring cartridge is fixed in the slot at the top of coil former, and the pressure spring is equipped with the tongue piece, and the tongue piece of pressure spring supports in the kink of armature and presses the kink of armature in the recess of yoke.

13. The small-sized high withstand voltage electromagnetic relay according to claim 11, characterized in that: and the base is provided with a third partition wall in an upward protruding mode, and the third partition wall is partitioned between the L-shaped vertical edge of the armature and the L-shaped vertical edge of the yoke.

14. The small-sized high withstand voltage electromagnetic relay according to claim 12, characterized in that: a first convex rib and a second convex rib are respectively arranged downwards at the positions corresponding to the armature iron and the yoke iron in the shell; when the shell is matched with the base, the first convex rib of the shell is close to the armature, the armature is limited by upward movement, and the second convex rib of the shell is close to the yoke, so that the magnetic circuit part is prevented from upward movement.

15. The small-sized high withstand voltage electromagnetic relay according to claim 11, characterized in that: and one surface of the L-shaped vertical side of the push card, which faces the armature iron, is also provided with a nose girder type convex rib so as to facilitate the assembly of the armature iron and realize automation.