CN214378259U - Multi-contact direct current relay - Google Patents

Abstract

The utility model discloses a multi-contact direct current relay, belonging to the technical field of relays and comprising a magnetizer component used for generating magnetism; the contact assembly is nested in the magnetizer assembly and moves along the cavity of the magnetizer assembly; the moving contact component is arranged at one end of the contact component; the moving contact component comprises a spring support and a moving contact arranged on the spring support; the moving contact is in contact with or separated from the static contact, so that a circuit connected to the static contact is connected or disconnected.

Description

Multi-contact direct current relay

Technical Field

The utility model belongs to the technical field of the relay, concretely relates to multicontact direct current relay.

Background

The direct current relay is an electronic control device adopting direct current to supply power in a common mode, is provided with a control system and a controlled system, is generally applied to an automatic control circuit and is equivalent to an automatic switch, and plays the roles of automatic adjustment, safety protection, circuit conversion and the like in the circuit.

Disclosure of Invention

An object of the utility model is to provide a multicontact direct current relay, it is high to connect the percent, and area of contact increases, has improved heat dispersion.

In order to achieve the above object, the utility model provides a following technical scheme: a multi-contact DC relay includes a magnetizer assembly for generating magnetism;

the contact assembly is nested in the magnetizer assembly and moves along the cavity of the magnetizer assembly;

the moving contact component is arranged at one end of the contact component; the moving contact component comprises a spring support and a moving contact arranged on the spring support;

the moving contact is in contact with or separated from the static contact, so that a circuit connected with the static contact is connected or disconnected.

Preferably, the spring support is provided with two mounting cavities, and moving contacts are arranged in the two mounting cavities respectively.

Preferably, the spring support comprises an upper cover plate, a bottom plate distributed in parallel with the upper cover plate, and two side supporting plates which are mutually fixed with the two side surfaces of the upper cover plate and the bottom plate and form a frame structure, a middle supporting plate is arranged in the spring support, and two ends of the middle supporting plate are respectively fixed with the inner walls of the upper cover plate and the bottom plate so as to divide the spring support into two mounting cavities.

Preferably, the outer side surfaces of the two side supporting plates are respectively provided with a support limiting groove, the inner side surfaces of the two side supporting plates are respectively provided with a movable contact plate limiting column, and the two side surfaces of the middle supporting plate are respectively provided with a movable contact plate limiting column.

Preferably, a bracket mounting hole is formed in the middle support plate, the cross section of the bracket mounting hole is non-circular, and the cross section of the bracket mounting hole is the same as the cross section of the linkage rod.

Preferably, the moving contact comprises a moving contact plate, a spring support fixed on the moving contact plate, and two moving contacts fixed on the moving contact plate and symmetrically distributed along the spring support.

Preferably, the movable contact plate is provided with two symmetrical movable contact plate limiting grooves, and the two movable contact plate limiting grooves on the movable contact plate are respectively matched with two movable contact plate limiting columns arranged in the installation cavity.

Preferably, one end of the movable contact spring is abutted on the spring support, and the other end of the movable contact spring is abutted on the inner wall of the upper cover plate.

Preferably, the magnetizer assembly comprises a coil framework with a hollow interior, a static iron core accommodated in the coil framework, and a coil wound on the periphery of the coil framework; the contact assembly comprises a linkage rod, a movable iron core fixed at one end of the linkage rod and a movable contact assembly arranged at the other end of the linkage rod.

Preferably, the coil framework is fixed on the magnetizer cover, and the movable iron core embedded in the coil framework upwards penetrates through the through hole of the magnetizer cover, so that the linkage rod penetrates through the mounting base fixed on the magnetizer cover and then is sleeved in the bracket mounting hole, and the spring bracket is fixed at the end part of the linkage rod;

two symmetrical static contact plates are fixed on the upper end face of the mounting base, and static contacts corresponding to the movable contacts are welded on the static contact plates respectively.

The utility model discloses a technological effect and advantage: this multicontact direct current relay, simple structure, convenient to use has following advantage:

1. the situation that the single contact can not be connected is solved;

2. compared with a single contact, the contact area of the multiple contacts is increased, and the heat dissipation performance is improved;

3. the creepage distance becomes large;

4. the linkage rod adopts a non-circular design, so that the problem that the linkage rod follows when the movable contact assembly is installed is solved, and the production efficiency is improved;

5. the cost is reduced.

Drawings

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

fig. 2 is a top view of the present invention;

fig. 3 is a left side view of the present invention;

FIG. 4 is a schematic structural view of the present invention without a dust cover;

FIG. 5 is a schematic structural view of the present invention without a dust cover and a mounting base;

FIG. 6 is a left side view of the present invention without the base installed;

fig. 7 is a schematic structural diagram of the spring support and the moving contact of the present invention;

fig. 8 is a schematic structural view of the moving contact of the present invention;

fig. 9 is an oblique view of the moving contact of the present invention;

fig. 10 is a top view of the moving contact of the present invention.

In the figure: 1. a magnetizer assembly; 2. installing a base; 3. a moving contact assembly; 4. a linkage rod; 5. a movable iron core; 6. a stationary contact plate; 7. a dust cover; 11. a coil bobbin; 12. a stationary iron core; 13. a magnetizer cover; 21. plastic bending plates; 22. a lead wiring terminal; 3. a seal ring; 31. a spring support; 32. a moving contact; 61. a stationary contact plate bolt; 62. a stationary contact; 311. an upper cover plate; 312. side supporting plates; 313. a middle support plate; 314. a base plate; 315. a bracket mounting hole; 316. a bracket limiting groove; 317. installing a cavity; 318. a movable contact plate limiting column; 321. a movable touch plate; 322. a spring support; 323. a movable contact; 324. and a movable contact plate limiting groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a multi-contact direct current relay as shown in figures 1-10, which comprises a magnetizer component 1 for generating magnetism; the magnetizer component 1 comprises a coil frame 11 with a hollow inner part, a static iron core 12 accommodated in the coil frame 11 and a coil wound on the periphery of the coil frame 11; the contact assembly comprises a linkage rod 4, a movable iron core 5 fixed at one end of the linkage rod 4 and a movable contact assembly 3 arranged at the other end of the linkage rod 4, in the embodiment, the interior of a coil framework 11 is in a hollow cylindrical shape, a static iron core 12 is positioned at the bottom of the coil framework 11, the movable iron core 5 is nested at the upper part of the coil framework 11 and can slide along the inner wall of the coil framework 11, in the embodiment, an iron core spring is arranged in the coil framework 11, one end of the iron core spring abuts against the lower end face of the movable iron core 5, and the other end of the iron core spring abuts against the upper end face of the static iron core 12; it is worth noting that the contact assembly is nested in the magnetizer assembly 1 and moves along the cavity of the magnetizer assembly 1;

the moving contact component 3 is arranged at one end of the contact component far away from the moving iron core, and the moving contact component 3 comprises a spring bracket 31 and a moving contact 32 arranged on the spring bracket 31; the spring support 31 is provided with two mounting cavities 317, two movable contacts 32 are respectively arranged in the two mounting cavities 317, the spring support 31 comprises an upper cover plate 311, a bottom plate 314 which is distributed in parallel with the upper cover plate 311, and two side supporting plates 312 which are mutually fixed with two side surfaces of the upper cover plate 311 and the bottom plate 314 to form a frame structure, a middle supporting plate 313 is arranged in the spring support 31, two ends of the middle supporting plate 313 are respectively fixed with the inner walls of the upper cover plate 311 and the bottom plate 314, the spring support 31 is divided into two mounting cavities 317, the outer side surfaces of the two side supporting plates 312 are respectively provided with a support limiting groove 316, the inner side surfaces of the two side supporting plates 312 are respectively provided with a moving contact plate limiting column 318, the two side surfaces of the middle supporting plate 313 are respectively provided with a moving contact plate limiting column 318, in this embodiment, the two bracket limiting grooves 316 are symmetrically designed, and the axes of the four moving contact plate limiting columns 318 are on the same straight line;

a bracket mounting hole 315 is formed in the middle support plate 313, the cross section of the bracket mounting hole 315 is non-circular, and the cross section of the bracket mounting hole 315 is the same as the cross section of the linkage rod 4; the linkage rod 4 is convenient to rotate during installation; in this embodiment, the upper end of the bracket mounting hole 315 is designed to be a counter bore, and when the bracket is fixed by a screw, the upper end surface of the screw is flush with the upper end surface of the upper cover plate 311;

the moving contact 32 comprises a moving contact plate 321, a spring strut 322 fixed on the moving contact plate 321 and two moving contacts 323 fixed on the moving contact plate 321 and symmetrically distributed along the spring strut 322, wherein two symmetrical moving contact plate limiting grooves 324 are arranged on the moving contact plate 321, and the two moving contact plate limiting grooves 324 on the moving contact plate 321 are respectively matched with the two moving contact plate limiting columns 318 arranged in the mounting cavity 317;

in this embodiment, one end of the movable contact spring abuts against the spring support 322, and the other end of the movable contact spring abuts against the inner wall of the upper cover 311;

the coil framework 11 is fixed on the magnetizer cover 13, and the movable iron core 5 nested in the coil framework 11 upwards penetrates through the through hole of the magnetizer cover 13, so that the linkage rod 4 penetrates through the mounting base 2 fixed on the magnetizer cover 13 and then is sleeved in the bracket mounting hole 315, and the spring bracket 31 is fixed at the end part of the linkage rod 4;

two symmetrical static contact plates 6 are fixed on the upper end surface of the mounting base 2, and static contacts 62 corresponding to the movable contacts 323 are welded on the static contact plates 6 respectively; in this embodiment, the movable contact 323 and the corresponding stationary contact 62 are coaxially distributed, and the stationary contact 6 is further provided with a stationary contact bolt 61 for connecting a control circuit; a sealing ring 23 is arranged between the two static contact plates 6, two lead wiring terminals 22 are further arranged on the upper end face of the mounting base 2, the two lead wiring terminals 22 are respectively connected to a lead of the coil, a dustproof cover 7 is arranged on the mounting base 2 to prevent dust from entering the interior of the mounting base and affecting performance, and a plastic bent plate 21 is arranged on the side face of the mounting base 2; the magnetizer cover 13 is fixed on the lower end surface of the mounting base 2, and the magnetizer cover 13 and the mounting base 2 are distributed coaxially; the movable contact 32 is in contact with or separated from the stationary contact 62, so that the circuit connected to the stationary contact 6 is connected or disconnected.

The working principle is as follows: the multi-contact direct current relay firstly connects the circuit electrodes to be controlled to the static contact plate 6 respectively and fixed by the static contact plate bolt 61, the electrodes of the control circuit are connected to the lead wiring terminal 22, when the lead wiring terminal 22 is electrified, the coil is electrified, the current generates magnetic effect through the coil, the static iron core 12 attracts the movable iron core 5 to move towards the static iron core 5 overcoming the resistance of the iron core spring, the linkage rod 4 is driven to move along with the lead wiring terminal, the spring support 31 moves along with the linkage rod 4, at the moment, the movable contact plate 321 moves, the movable contact 323 on the movable contact plate 321 is respectively contacted with the corresponding static contact 62, the currents of the four static contacts 62 are communicated through the four movable contacts 323, when the lead wiring terminal 22 is powered off, the magnetic effect of the currents disappears, the movable iron core 5 is far away from the static iron core 12 under the elastic action of the iron core spring, the linkage rod 4 is driven to move along with the linkage rod 4, the spring support 31 is driven to move towards the same direction, the movable contact 32 is separated from the corresponding stationary contact 62, and the current of the two stationary contacts 62 is lack of medium and cannot be communicated, so that the on-off operation is realized.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims (10)

1. A multi-contact direct current relay is characterized in that: comprises a magnetizer assembly (1) for generating magnetism;

the contact assembly is nested in the magnetizer assembly (1) and moves along the cavity of the magnetizer assembly (1);

a moving contact assembly (3) mounted at one end of the contact assembly; the moving contact component (3) comprises a spring support (31) and a moving contact (32) which is contacted with or separated from the static contact (62) to enable a connecting circuit on the static contact (62) to be connected or disconnected, and the moving contact (32) is arranged on the spring support (31).

2. A multi-contact dc relay according to claim 1, wherein: the spring support (31) is provided with two mounting cavities (317), the number of the moving contacts (32) is two, and the two moving contacts (32) are respectively mounted in the two mounting cavities (317).

3. A multi-contact dc relay according to claim 2, wherein: the spring support (31) comprises an upper cover plate (311), a bottom plate (314) which is distributed in parallel with the upper cover plate (311), and two side supporting plates (312) which are mutually fixed with two side surfaces of the upper cover plate (311) and the bottom plate (314) to form a frame structure, a middle supporting plate (313) is arranged in the spring support (31), two ends of the middle supporting plate (313) are respectively fixed with the inner walls of the upper cover plate (311) and the bottom plate (314), and the spring support (31) is divided into two mounting cavities (317).

4. A multi-contact dc relay according to claim 3, wherein: the outer side surfaces of the two side supporting plates (312) are respectively provided with a support limiting groove (316), the inner side surfaces of the two side supporting plates (312) are respectively provided with a movable contact plate limiting column (318), and the two side surfaces of the middle supporting plate (313) are respectively provided with a movable contact plate limiting column (318).

5. The multi-contact dc relay of claim 4, wherein: the middle supporting plate (313) is provided with a support mounting hole (315), the cross section of the support mounting hole (315) is non-circular, and the cross section of the support mounting hole (315) is the same as that of the linkage rod (4).

6. A multi-contact dc relay according to claim 1, wherein: the moving contact (32) comprises a moving contact plate (321), a spring strut (322) fixed on the moving contact plate (321) and two moving contacts (323) which are fixed on the moving contact plate (321) and symmetrically distributed along the spring strut (322).

7. The multi-contact dc relay of claim 6, wherein: two symmetrical moving contact plate limiting grooves (324) are formed in the moving contact plate (321), and the two moving contact plate limiting grooves (324) in the moving contact plate (321) are respectively matched with two moving contact plate limiting columns (318) arranged in the mounting cavity (317).

8. The multi-contact dc relay of claim 7, wherein: one end of the movable contact spring is abutted on the spring support (322), and the other end of the movable contact spring is abutted on the inner wall of the upper cover plate (311).

9. A multi-contact dc relay according to any of claims 1-8, wherein: the magnetizer assembly (1) comprises a coil framework (11) with a hollow inner part, a static iron core (12) accommodated in the coil framework (11) and a coil wound on the periphery of the coil framework (11); the contact assembly comprises a linkage rod (4), a movable iron core (5) fixed at one end of the linkage rod (4), and a movable contact assembly (3) arranged at the other end of the linkage rod (4).

10. A multi-contact dc relay according to claim 9, wherein: the coil framework (11) is fixed on the magnetizer cover (13), the movable iron core (5) embedded in the coil framework (11) penetrates upwards from the through hole of the magnetizer cover (13), the linkage rod (4) penetrates through the mounting base (2) fixed on the magnetizer cover (13) and then is sleeved in the support mounting hole (315), and the spring support (31) is fixed at the end part of the linkage rod (4);

two symmetrical static contact plates (6) are fixed on the upper end face of the mounting base (2), and static contacts (62) corresponding to the moving contacts (323) are welded on the static contact plates (6) respectively.

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