CN214203573U

CN214203573U - Balance force type electromagnetic relay with multiple groups of conversion contacts

Info

Publication number: CN214203573U
Application number: CN202023215202.8U
Authority: CN
Inventors: 赵叶; 史利兵; 谭旭; 惠小玲; 刘建利; 魏怡宁
Original assignee: Shaanxi Qunli Electric Co ltd
Current assignee: Shaanxi Qunli Electric Co ltd
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-09-14
Anticipated expiration: 2030-12-28

Abstract

A balance force type electromagnetic relay with a plurality of groups of conversion contacts is provided, wherein an electromagnetic system and a contact system are arranged in a housing, and the electromagnetic system is supported above the contact system through a wall plate; the electromagnetic system comprises a magnetic circuit component and an armature component, the magnetic circuit component comprises a yoke I, a yoke II and a yoke III which are fixed between wall plates side by side, the yoke I is positioned on the inner side of the yoke III, magnetic steel is arranged between the yoke III and the yoke I, and an iron core wound with a coil is fixed between the yoke I and the yoke II side by side; the armature component comprises a small shaft bracket and an armature, the lower end of the small shaft bracket is fixed with two ends of a movable shaft sleeved with an insulating block and a bracket, and the upper end of the small shaft bracket is fixed with two ends of the armature so that the movable shaft is positioned below the armature; the upper end of the bracket is fixed with the armature, and the insulating block is positioned between the brackets; two ends of the movable shaft are rotatably connected to a large shaft bracket, two ends of the large shaft bracket are fixed with a yoke I and a yoke II, and the armature is positioned below the yoke I, the yoke II, the coil and the magnetic steel; a movable spring with movable contacts at two ends is fixed below the insulating block.

Description

Balance force type electromagnetic relay with multiple groups of conversion contacts

Technical Field

The utility model belongs to the technical field of the relay is made, concretely relates to balance force formula electromagnetic relay with multiunit change over contact.

Background

At present, most of the adopted balance force type electromagnetic relays have two groups of conversion and three groups of conversion, the maximum number is six groups of conversion, and the contact switching load circuit is limited, so that the signal switching requirements in the fields of rail transit and the like cannot be met.

SUMMERY OF THE UTILITY MODEL

The utility model provides a balance force formula electromagnetic relay with multiunit change over contact satisfies field signal switching requirements such as track traffic.

The utility model adopts the technical proposal that: a balance force type electromagnetic relay with multiple groups of conversion contacts comprises a housing, wherein an electromagnetic system and a contact system are arranged in the housing, and the electromagnetic system is supported above the contact system through a wall plate; the electromagnetic system comprises a magnetic circuit assembly and an armature assembly, the magnetic circuit assembly comprises a yoke I, a yoke II and a yoke III, the yoke I, the yoke II and the yoke III are fixed between wall plates in parallel, the yoke I is positioned on the inner side of the yoke III, magnetic steel is arranged between the yoke III and the yoke I, two iron cores are fixed between the yoke I and the yoke II in parallel, and coils are wound on the iron cores; the armature component comprises an armature, a small shaft bracket, a movable shaft, an insulating block and a bracket, wherein the lower end of the small shaft bracket is fixed at two ends of the movable shaft, and the upper end of the small shaft bracket is fixedly connected at two ends of the armature, so that the movable shaft is positioned below the armature; the movable shaft is sleeved with an insulating block and a bracket, the upper end of the bracket is fixedly connected to the armature, and the insulating block is positioned between the brackets; two ends of the yoke I and the yoke II are fixed with a large shaft bracket, and two ends of the movable shaft are rotatably connected to the large shaft bracket, so that the armature is positioned below the yoke I, the yoke II, the coil and the magnetic steel; and movable springs are fixed below the insulating blocks, and movable contacts are arranged at two ends of each movable spring.

Four insulating blocks and five brackets are sleeved on the movable shaft, and two movable reeds are fixed below the insulating blocks side by side to form eight groups of movable contacts; the contact system comprises a bottom plate, wherein two control pins, eight input pins, eight output pins I and eight output pins II are arranged on the bottom plate; a support sheet is fixed at the inner end of the input pin and is fixedly connected with the middle part of the movable reed through a connection card; transition pieces are fixed at the inner ends of the output pin I and the output pin II, and the top of each transition piece is riveted with a static contact, eight groups of static contacts are counted, and the eight groups of static contacts and the eight groups of movable contacts are correspondingly arranged; the control pins are respectively electrically connected with the coils.

And a supporting sheet is further fixed below the insulating block and is positioned below the movable spring.

Eight output pin I, eight output pin II are located the both sides of bottom plate side by side, eight input pins are located the inboard of eight output pin II side by side, two control foot symmetries are located the both ends of bottom plate and are located respectively between input pin and the output pin I.

Compared with the prior art, the utility model discloses beneficial effect who has:

1. the utility model discloses a balanced force formula electromagnetic structure can provide the sufficient holding power of armature, has satisfied the environmental suitability of relay and the requirement of reliable switching load.

2. The utility model discloses electromagnetic system links together magnetic circuit subassembly and armature subassembly through big pedestal, has guaranteed that the actuating mechanism of relay is stable, reliable.

3. The utility model discloses a set up the movable contact spring row on armature subassembly, realized multiunit change over contact conversion, the specially adapted rail transit field, the signal switching of high-speed railway train and subway train, and compact structure, small, light in weight, resistant environmental index height, the manufacturability is good.

4. The utility model discloses a movable contact spring below sets up the support piece, effectively increases reed area of contact and rigidity.

Drawings

FIG. 1 is a schematic sectional view of the structure of the present invention;

FIG. 2 is a schematic view of the utility model with the cover removed;

FIG. 3 is a schematic diagram of a three-dimensional structure of the electromagnetic system of the present invention;

fig. 4 is a schematic structural sectional view of the electromagnetic system of the present invention;

fig. 5 is a schematic structural view of the armature assembly of the present invention;

fig. 6 is a schematic diagram of the contact system of the present invention.

Detailed Description

The present invention will be described in detail with reference to the drawings and the detailed description of the embodiments of fig. 1 to 6.

A balance force type electromagnetic relay with multiple groups of conversion contacts comprises a housing 1, wherein an electromagnetic system and a contact system are arranged in the housing 1, and the electromagnetic system is supported above the contact system through a wall plate 4; the electromagnetic system comprises a magnetic circuit assembly and an armature assembly, the magnetic circuit assembly comprises a yoke I5, a yoke II 6 and a yoke III 8, the yoke I5, the yoke II 6 and the yoke III 8 are fixed between wall plates 4 in parallel, the yoke I5 is positioned on the inner side of the yoke III 8, a magnetic steel 26 is arranged between the yoke III 8 and the yoke I5, two iron cores 10 are fixed between the yoke I5 and the yoke II 6 in parallel, and a coil 9 is wound on each iron core 10; the armature component comprises an armature 11, a small shaft bracket 12, a movable shaft 13, an insulating block 14 and a bracket 15, wherein the lower end of the small shaft bracket 12 is fixed at two ends of the movable shaft 13, the upper end of the small shaft bracket 12 is fixedly connected at two ends of the armature 11, and the movable shaft 13 is further positioned below the armature 11; the movable shaft 13 is sleeved with an insulating block 14 and a bracket 15, the upper end of the bracket 15 is fixedly connected to the armature 11, and the insulating block 14 is positioned between the brackets 15; two ends of the yoke I5 and the yoke II 6 are fixed with a large shaft bracket 7, two ends of the movable shaft 13 are rotatably connected to the large shaft bracket 7, and the armature 11 is positioned below the yoke I5, the yoke II 6, the coil 9 and the magnetic steel 26; a movable spring 16 is fixed below the insulating block 14, and two ends of the movable spring 16 are provided with movable contacts 17.

In one embodiment, four insulating blocks 14 and five brackets 15 are sleeved on the movable shaft 13, and two movable springs 16 are fixed below the insulating blocks 14 side by side to form eight groups of movable contacts 17; the contact system comprises a bottom plate 3, wherein two control pins 19, eight input pins 20, eight output pins I21 and eight output pins II 22 are arranged on the bottom plate 3; a support sheet 23 is fixed at the inner end of the input pin 20, and the support sheet 23 is fixedly connected with the middle part of the movable spring plate 16 through a connecting card 2; transition pieces 24 are fixed at the inner ends of the output pins I21 and II 22, the top of each transition piece 24 is riveted with eight groups of static contacts 25, eight groups of static contacts 25 are counted, and the eight groups of static contacts 25 and the eight groups of movable contacts 17 are arranged correspondingly; the control pins 19 are electrically connected to the coils 9, respectively.

A supporting sheet 18 is further fixed below the insulating block 14, and the supporting sheet 18 is located below the movable spring 16. Eight output pins I21, eight output pins II 22 are located the both sides of bottom plate 3 side by side, eight input pin 20 are located eight output pins II 22's inboard side by side, two control pin 19 symmetry are located the both ends of bottom plate 3 and are located respectively between input pin 20 and the output pin I21. The outer surface of the housing 1 is symmetrically welded with supporting legs 27; the relay fixing device is used for mounting and fixing the relay.

The utility model discloses electromagnetic system adopts the balance force formula magnetic circuit structure, provides the holding power by the magnet steel, guarantees that armature is basically the same with the power that the release position received in the actuation position, for satisfying impact, vibration, steady state acceleration index requirement provides the guarantee, and this kind of structure can provide great electromagnetic attraction and holding power simultaneously, can guarantee great contact pressure and trail to overcome contact ablation and wearing and tearing, in order to satisfy the load and switch over the requirement. The contact system welds the static contact on the welding leg through transition piece, backing sheet, and this structural strength is high, and the vibration resistance is good, can provide sufficient counter-force and guarantee that the contact reliably contacts, and has set for reasonable contact clearance, contact pressure, satisfies the requirement that the contact load reliably switches.

The working principle is as follows: when the relay is static, the relay is in an initial release state under the action of the magnetic force of the magnetic steel 26, and the armature 11 is attached to the yoke III 8; after the coil 9 is excited according to the polarity requirement, because the direction of the magnetic flux generated by the coil 9 is opposite to the direction of the magnetic flux generated by the magnetic steel 26, under the action of electromagnetic attraction, the magnetic steel attraction is overcome, the armature 11 drives the reed 16 to rotate, and the armature 11 is attached to the yoke I5, so that the contact on the output pin II 22 is opened, the contact on the output pin I21 is closed, the contact conversion is realized, and the relay is converted into the attraction state; when the coil is de-energized, the electromagnetic attraction generated by the coil 9 disappears, and the armature 11 is attached to the yoke III 8 under the action of the magnetic force of the magnetic steel 26, so that the relay returns to the initial release state.

The above-mentioned embodiments are merely preferred embodiments of the present invention, and not intended to limit the scope of the present invention, so that all equivalent changes made by the contents of the claims of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A balance force type electromagnetic relay with multiple groups of conversion contacts comprises a housing (1), wherein an electromagnetic system and a contact system are arranged in the housing (1), and the electromagnetic system is supported above the contact system through a wall plate (4); the method is characterized in that: the electromagnetic system comprises a magnetic circuit assembly and an armature assembly, the magnetic circuit assembly comprises a yoke I (5), a yoke II (6) and a yoke III (8), the yoke I (5), the yoke II (6) and the yoke III (8) are fixed between wall plates (4) side by side, the yoke I (5) is located on the inner side of the yoke III (8), magnetic steel (26) is arranged between the yoke III (8) and the yoke I (5), two iron cores (10) are fixed between the yoke I (5) and the yoke II (6) side by side, and coils (9) are wound on the iron cores (10); the armature component comprises an armature (11), a small shaft bracket (12), a movable shaft (13), an insulating block (14) and a bracket (15), wherein the lower end of the small shaft bracket (12) is fixed at two ends of the movable shaft (13), the upper end of the small shaft bracket (12) is fixedly connected with two ends of the armature (11), and the movable shaft (13) is positioned below the armature (11); the movable shaft (13) is sleeved with an insulating block (14) and a bracket (15), the upper end of the bracket (15) is fixedly connected to the armature (11), and the insulating block (14) is positioned between the brackets (15); two ends of the yoke I (5) and the yoke II (6) are fixed with a large shaft bracket (7), two ends of the movable shaft (13) are rotatably connected to the large shaft bracket (7), and the armature (11) is positioned below the yoke I (5), the yoke II (6), the coil (9) and the magnetic steel (26); and movable reeds (16) are fixed below the insulating blocks (14), and movable contacts (17) are arranged at two ends of each movable reed (16).

2. The balanced force type electromagnetic relay having plural sets of switching contacts according to claim 1, wherein: four insulating blocks (14) and five brackets (15) are sleeved on the movable shaft (13), two movable reeds (16) are fixed below the insulating blocks (14) side by side to form eight groups of movable contacts (17); the contact system comprises a bottom plate (3), wherein two control pins (19), eight input pins (20), eight output pins I (21) and eight output pins II (22) are arranged on the bottom plate (3); a support sheet (23) is fixed at the inner end of the input pin (20), and the support sheet (23) is fixedly connected with the middle part of the movable reed (16) through a connecting card (2); transition pieces (24) are fixed at the inner ends of the output pins I (21) and II (22), the top parts of the transition pieces (24) are riveted with static contacts (25), eight groups of static contacts (25) are counted, and the eight groups of static contacts (25) and the eight groups of movable contacts (17) are correspondingly arranged; the control pins (19) are respectively and electrically connected with the coils (9).

3. The balanced force type electromagnetic relay having plural sets of switching contacts according to claim 2, wherein: a supporting sheet (18) is further fixed below the insulating block (14), and the supporting sheet (18) is located below the movable spring (16).

4. The balanced force type electromagnetic relay having plural sets of switching contacts according to claim 3, wherein: eight output pin I (21), eight output pin II (22) are located the both sides of bottom plate (3) side by side, eight input pin (20) are located the inboard of eight output pin II (22) side by side, two control foot (19) symmetry are located the both ends of bottom plate (3) and are located respectively between input pin (20) and output pin I (21).