CN213401025U

CN213401025U - Rotary magnetic latching relay

Info

Publication number: CN213401025U
Application number: CN202022681652.XU
Authority: CN
Inventors: 王文波; 陈诚盛; 林秀强
Original assignee: Zhejiang Guangwei Electronics Co ltd
Current assignee: Zhejiang Guangwei Electronics Co ltd
Priority date: 2020-11-18
Filing date: 2020-11-18
Publication date: 2021-06-08
Anticipated expiration: 2030-11-18

Abstract

The application relates to a rotary magnetic latching relay, which comprises a shell, a magnetic circuit component, a pushing sheet and a contact component, wherein the magnetic circuit component, the pushing sheet and the contact component are arranged in the shell; the pushing sheet slides in the shell under the driving of the magnetic circuit component, and the pushing sheet is linked with the contact component; the magnetic circuit component comprises a coil holder and an electromagnetic coil arranged on the coil holder, and the central shaft of the electromagnetic coil along the length direction is vertical to the pushing sheet; the magnetic circuit component further comprises an armature piece rotatably arranged in the shell, an insertion block is arranged on the side wall of the armature piece, which is far away from the electromagnetic coil, an insertion groove facing the insertion block is arranged on the pushing piece, and the insertion block is inserted into the pushing piece through the insertion groove. This application has the inside spatial layout of messenger's casing more reasonable, has reduced the whole length of casing, makes the inside space compacter effect of casing.

Description

Rotary magnetic latching relay

Technical Field

The application relates to the field of relays, in particular to a rotary magnetic latching relay.

Background

At present, a 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. When the contact of the relay needs to be set, only the coil needs to be excited by positive direct-current pulse voltage, the magnetic poles generated after the coil is excited interact with the magnetic poles of the permanent magnets, the homopolarity repels each other, and the heteropolarity attracts each other, so that the relay can instantly complete the state conversion from resetting to setting.

The Chinese patent with the publication number of CN211208343U in the related art discloses a three-phase magnetic latching relay, which comprises a shell, a pushing sheet, a magnetic circuit system, three movable contact sets and three static contact sets, wherein the pushing sheet, the magnetic circuit system, the three movable contact sets and the three static contact sets are arranged in the shell, the pushing sheet is driven by the magnetic circuit system to move horizontally, and then the three movable contact sets and the three static contact sets are controlled to be synchronously separated and combined, the magnetic circuit system comprises a wire frame arranged in the shell, an electromagnetic coil connected to the wire frame, yokes arranged at two ends of the wire frame and communicated with the electromagnetic coil, and armature assemblies rotatably connected with the shell. And when the movable contact set is separated from the static contact set close to the movable contact set, the pushing sheet presses the micro switch to enable the external indicating lamp to be lightened. The utility model discloses a have the effect that makes things convenient for people to judge relay operating condition directly perceived.

In view of the above-mentioned related art, the inventor believes that there are defects that the overall length of the housing is longer due to the fact that the central axis of the electromagnetic coil along the length direction of the electromagnetic coil is parallel to the sliding direction of the pushing sheet, the housing needs a longer pushing sheet to be matched with the armature assembly due to an overlong length, and the layout of the internal space of the housing is not reasonable.

SUMMERY OF THE UTILITY MODEL

In order to improve and lead to casing length overlength's problem because of casing inner space overall arrangement is unreasonable, this application provides a rotary type magnetic latching relay.

The application provides a rotary type magnetic latching relay adopts following technical scheme:

a rotary magnetic latching relay comprises a shell, a magnetic circuit assembly, a pushing sheet and a contact assembly, wherein the magnetic circuit assembly, the pushing sheet and the contact assembly are arranged in the shell; the pushing sheet slides in the shell under the driving of the magnetic circuit component, and the pushing sheet is linked with the contact component; the magnetic circuit component comprises a coil holder and an electromagnetic coil arranged on the coil holder, and the central shaft of the electromagnetic coil along the length direction is vertical to the pushing sheet; the magnetic circuit component further comprises an armature piece rotatably arranged in the shell, an insertion block is arranged on the side wall of the armature piece, which is far away from the electromagnetic coil, an insertion groove facing the insertion block is arranged on the pushing piece, and the insertion block is inserted into the pushing piece through the insertion groove.

By adopting the technical scheme, the central shaft of the electromagnetic coil along the length direction is vertical to the pushing sheet, so that the length direction of the electromagnetic coil is matched with the width direction of the shell; therefore, the space layout in the shell is improved, the space layout in the shell is more reasonable, and the overall length of the shell is reduced; and through the mutual inserting and matching of the inserting block arranged on the armature piece and the inserting groove on the pushing piece, the pushing piece can be smoothly driven to move, the overlong pushing piece is not needed, the layout in the shell is optimized, and the space in the shell is more compact.

Preferably, a slide way is formed on the shell and positioned on one side of the contact assembly, and the pushing sheet is arranged in the slide way in a sliding manner.

Through adopting above-mentioned technical scheme, the slide can play the effect of direction to the slip that promotes the piece, and the slide can also guarantee to promote the stable and smooth realization of piece to the control of contact assembly simultaneously.

Preferably, the inner side wall of the slide way is provided with a limiting strip, and the pushing piece is provided with a limiting block positioned on one side of the limiting strip; the limiting block is in contact with the inner side wall of the slide way.

Through adopting above-mentioned technical scheme, when promoting the piece and slide in the slide, can carry out spacingly to the biggest displacement range who promotes the piece through the spacing strip that sets up on the slide inside wall to can reduce and promote the probability that the piece takes place excessively to slide.

Preferably, a partition plate positioned between the magnetic circuit assembly and the contact assembly is arranged on the shell, and an inclined plane is arranged on the side wall of the partition plate facing the insertion block; the inclined plane inclines towards the direction far away from the insertion block.

By adopting the technical scheme, the partition plate can increase the creepage distance between the magnetic circuit component and the contact component, so that the electromagnetic interference between the magnetic circuit component and the contact component during working can be reduced, and the magnetic circuit component and the contact component are more stable and reliable during working; and the swing range of the insert block can be further enlarged through the inclined plane, so that the armature piece can be ensured to smoothly drive the push sheet to slide.

Preferably, the contact assembly comprises a static contact block arranged on the shell and a movable contact piece, one end of the movable contact piece is arranged on the pushing piece; and the static contact block and the movable contact piece are both provided with contacts close to one side of the pushing piece, and the contacts are oppositely arranged.

By adopting the technical scheme, when one end of the movable contact piece moves to the direction close to the static contact block along with the pushing piece, the conduction of the external circuit is realized through the mutual contact between the contacts; because the contact is close to one side of the pushing sheet, the contact and the separation between the contacts can be more rapid and sensitive.

Preferably, the pushing piece is provided with a limiting groove facing the movable contact piece, and the movable contact piece is inserted into the limiting groove.

Through adopting above-mentioned technical scheme, when installing movable contact spring one end on promoting the piece, insert movable contact spring one end earlier to the spacing inslot, can realize preliminary spacing fixed to the movable contact spring through the spacing groove to it fixes to the movable contact spring again to have made things convenient for the later stage.

Preferably, the pushing piece is provided with a spring piece facing the movable contact piece, and the other end of the spring piece is arranged on the side wall of the movable contact piece, which is far away from the static contact block.

By adopting the technical scheme, the contact on the movable contact spring can be more stably and firmly tightly pressed with the contact on the static contact block under the action of the elastic sheet; thereby greatly enhancing the reliability of the contacts on the two sides when the contacts are contacted with each other.

Preferably, a separation seat is arranged in the shell, an accommodating groove is formed in the separation seat, and the static contact block is arranged in the corresponding accommodating groove; and the separating block positioned between the adjacent static contact blocks is formed on the separating seat.

By adopting the technical scheme, the containing groove can stably and firmly limit the static contact blocks on the separating seat, the distance between two adjacent static contact blocks can be increased through the separating blocks, and the creepage distance between the two static contact blocks is increased; therefore, mutual interference between adjacent static contact blocks during working can be effectively reduced.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the space layout in the shell is improved, so that the space layout in the shell is more reasonable, and the overall length of the shell is reduced; the layout of the interior of the shell is optimized, so that the space of the interior of the shell is more compact;

2. because the contact is close to one side of the pushing sheet, the contact and the separation between the contacts can be more rapid and sensitive.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a partial schematic view of the interior of the highlighted housing of fig. 1.

FIG. 3 is a partial schematic view showing the construction of the armature member and the push plate according to the present invention.

Fig. 4 is a partial structural schematic view of fig. 2.

Description of reference numerals: 1. a housing; 2. a magnetic circuit assembly; 21. a wire frame; 22. an electromagnetic coil; 23. an armature member; 231. inserting a block; 3. a push sheet; 31. a slot; 32. a limiting block; 33. a limiting groove; 34. a spring plate; 4. a contact assembly; 41. a stationary contact block; 42. a movable contact spring; 43. a contact; 5. a slideway; 51. a limiting strip; 6. a partition plate; 61. a bevel; 7. a separation seat; 71. accommodating grooves; 72. a partitioning block.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses rotary type magnetic latching relay. Referring to fig. 1 and 2, the rotary magnetic latching relay includes a housing 1, and a magnetic circuit assembly 2, a pushing sheet 3, and three sets of contact assemblies 4 distributed at regular intervals in sequence along the length direction of the housing 1 are sequentially installed in the housing 1. The one end of promotion piece 3 links with magnetic circuit assembly 2, promotes 3 other ends of piece and can realize switching on or breaking off in step connecting the external circuit on three contact assemblies 4 of group under the drive of magnetic circuit assembly 2.

As shown in fig. 2 and 3, the magnetic circuit assembly 2 includes a bobbin 21, an electromagnetic coil 22 mounted on the bobbin 21, and an armature member 23 rotatably mounted on the housing 1 with its center axis. A slide way 5 positioned on one side of the contact component 4 is formed in the shell 1, the slide way 5 is arranged along the length direction of the shell 1, and the pushing sheet 3 is arranged in the slide way 5 in a sliding mode along the horizontal direction. The central axis of the electromagnetic coil 22 in the length direction is perpendicular to the push plate 3, and the armature member 23 is located between the electromagnetic coil 22 and the adjacent set of contact assemblies 4. The two ends of the wire frame 21 are fixedly connected with symmetrically arranged yokes which are respectively inserted into the two ends of the armature piece 23. When the electromagnetic coil 22 is energized, the magnetic force generated by the yokes on both sides will rotate the armature member 23 about the central axis. The central axis of the armature member 23 is arranged along the thickness direction of the housing 1.

As shown in fig. 2 and 3, an insertion block 231 facing the pushing piece 3 is integrally formed on a side wall of the armature member 23 facing away from the electromagnetic coil 22, and an insertion slot 31 with an opening facing the insertion block 231 penetrates through one end of the pushing piece 3 close to the magnetic circuit assembly 2. The insert block 231 is movably inserted into the push sheet 3 through the insertion slot 31. The slide 5 towards integrated into one piece have three spacing 51 that set up along casing 1 thickness direction on the inside wall of contact subassembly 4, and three spacing 51 are evenly interval distribution in proper order along casing 1's length direction within a definite time. The integrated into one piece has three stopper 32 that is located corresponding spacing 51 one side respectively on pushing away piece 3, and stopper 32 contacts with the inside wall of slide 5.

As shown in fig. 2 and 3, a partition plate 6 is integrally formed on the housing 1 between the armature member 23 and the adjacent set of contact assemblies 4, and the partition plate 6 is perpendicular to the push plate 3. The side wall of the partition plate 6 facing the insert block 231 is provided with an inclined surface 61 inclined towards the direction away from the insert block 231, and when the armature piece 23 rotates, the inclined surface 61 can further increase the swing range of the insert block 231, so that the armature piece 23 can smoothly drive the push piece 3 to slide.

As shown in fig. 2 and 4, three sets of separating seats 7 corresponding to the positions of the contact assemblies 4 one by one are fixedly installed in the housing 1, and the separating seats 7 are perpendicular to the pushing sheet 3. The left and right ends of the separating seat 7 are symmetrically provided with accommodating grooves 71, and each group of contact assemblies 4 comprises two static contact blocks 41 and one movable contact piece 42. The two static contact blocks 41 are respectively and fixedly installed in the accommodating grooves 71 on the same separating seat 7, and the lower ends of the static contact blocks 41 extend out of the accommodating grooves 71 to the outside of the housing 1. The partition seat 7 is formed with a partition block 72 located between the two stationary contact blocks 41.

As shown in fig. 2 and 4, the movable contact piece 42 and the fixed contact block 41 on the same group of contact assemblies 4 are arranged opposite to each other, two contacts 43 facing the movable contact piece 42 are fixedly mounted on the fixed contact block 41 on the side close to the pushing piece 3, and the contacts 43 are distributed vertically along the thickness direction of the housing 1. Two contacts 43 facing the fixed contact block 41 are also fixedly mounted on the movable contact piece 42, and the contacts 43 on the movable contact piece 42 are opposite to the contacts 43 on the fixed contact block 41 one by one.

As shown in fig. 2 and 4, the pushing sheet 3 is provided with three limiting grooves 33 corresponding to the moving contacts 42 one by one, one end of the moving contact 42 is inserted into the limiting groove 33, and the other end of the moving contact 42 is fixedly mounted on the same group of stationary contact blocks 41 far away from one side of the pushing sheet 3. The pushing sheet 3 is also fixedly provided with three spring pieces 34 which are respectively positioned at one side of the corresponding limiting groove 33, and the other ends of the spring pieces 34 are fixedly arranged on the side walls of the respectively adjacent movable contact pieces 42 departing from the static contact block 41. The spring plate 34 presses the movable contact 42 against the inner side wall of the limiting groove 33. Because the movable contact piece 42 has a certain elasticity, one end of the movable contact piece 42 is driven by the pushing piece 3 to move towards the direction close to or away from the static contact block 41, and the connection or disconnection of the external circuit can be realized through the mutual contact or separation of the contacts 43.

The implementation principle of the rotary magnetic latching relay in the embodiment of the application is as follows: since the central axis of the electromagnetic coil 22 in the length direction is perpendicular to the push sheet 3, the length direction of the electromagnetic coil 22 is adapted to the width direction of the housing 1. Therefore, the space layout inside the shell 1 is improved, the space layout inside the shell 1 is more reasonable, and the overall length of the shell 1 is reduced. And through the mutual grafting cooperation of the plug block 231 arranged on the armature piece 23 and the slot 31 on the pushing piece 3, the pushing piece 3 can be smoothly driven to move, the overlong pushing piece 3 is not needed, the layout in the shell 1 is optimized, and the space in the shell 1 is more compact. When one end of the movable contact piece 42 moves to the direction close to the static contact block 41 along with the pushing piece 3, the contact terminals 43 are contacted with each other, so that the conduction of the external circuit is realized. Because the contact 43 is close to one side of the pushing sheet 3, the contact and the separation between the contacts 43 can be more rapid and sensitive.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A rotary magnetic latching relay comprises a shell (1), a magnetic circuit component (2) arranged in the shell (1), a pushing sheet (3) and a contact component (4); the pushing sheet (3) slides in the shell (1) under the drive of the magnetic circuit component (2), and the pushing sheet (3) and the contact component (4) realize linkage; the method is characterized in that: the magnetic circuit component (2) comprises a coil holder (21) and an electromagnetic coil (22) arranged on the coil holder (21), and the central shaft of the electromagnetic coil (22) along the length direction is vertical to the pushing sheet (3); the magnetic circuit assembly (2) further comprises an armature piece (23) rotatably arranged in the shell (1), an insertion block (231) is arranged on the side wall of the armature piece (23) departing from the electromagnetic coil (22), a slot (31) facing the insertion block (231) is arranged on the push sheet (3), and the insertion block (231) is inserted into the push sheet (3) through the slot (31).

2. A rotary magnetic latching relay according to claim 1, wherein: the shell (1) is provided with a slide way (5) positioned on one side of the contact component (4), and the pushing sheet (3) is arranged in the slide way (5) in a sliding manner.

3. A rotary magnetic latching relay according to claim 2, wherein: a limiting strip (51) is arranged on the inner side wall of the slide way (5), and a limiting block (32) positioned on one side of the limiting strip (51) is arranged on the pushing sheet (3); the limiting block (32) is in contact with the inner side wall of the slide way (5).

4. A rotary magnetic latching relay according to claim 1, wherein: a partition plate (6) positioned between the magnetic circuit component (2) and the contact component (4) is arranged on the shell (1), and an inclined surface (61) is arranged on the side wall, facing the insertion block (231), of the partition plate (6); the inclined surface (61) is inclined in a direction away from the insert block (231).

5. A rotary magnetic latching relay according to claim 1, wherein: the contact assembly (4) comprises a static contact block (41) arranged on the shell (1) and a movable contact piece (42) with one end arranged on the pushing piece (3); the static contact block (41) and the movable contact piece (42) are both provided with a contact (43) close to one side of the pushing piece (3), and the contacts (43) are arranged oppositely.

6. A rotary magnetic latching relay according to claim 5, wherein: the pushing piece (3) is provided with a limiting groove (33) facing the movable contact piece (42), and the movable contact piece (42) is inserted into the limiting groove (33).

7. A rotary magnetic latching relay according to claim 6, wherein: the pushing piece (3) is provided with a spring piece (34) facing the movable contact piece (42), and the other end of the spring piece (34) is arranged on the side wall of the movable contact piece (42) departing from the static contact block (41).

8. A rotary magnetic latching relay according to claim 6, wherein: a separation seat (7) is arranged in the shell (1), an accommodating groove (71) is formed in the separation seat (7), and the static contact block (41) is arranged in the corresponding accommodating groove (71); and the separating block (72) positioned between the adjacent static contact blocks (41) is formed on the separating seat (7).