CN202405186U

CN202405186U - Relay

Info

Publication number: CN202405186U
Application number: CN2012200026101U
Authority: CN
Inventors: 郭红伟; 王春林
Original assignee: NINGBO RUIOU ELECTRONICS CO Ltd
Current assignee: NINGBO RUIOU ELECTRONICS CO Ltd
Priority date: 2012-01-05
Filing date: 2012-01-05
Publication date: 2012-08-29
Anticipated expiration: 2022-01-05

Abstract

The utility model discloses a relay. The relay comprises an I-shaped coil rack, a coil which is fixed on the coil rack, an iron core which is arranged in the coil rack, an armature iron which is arranged above the iron core, a yoke iron which is arranged outside the coil rack, a movable contact spring and a stationary contact spring, wherein the movable contact spring comprises a moving contact, the stationary contact spring comprises a stationary contact, the coil is a miniature and tightly wound coil, and the radius of the coil rack is greater than the height of the coil rack. Under the condition that the performance of the relay is not changed basically, the height of the entire relay is reduced, and the size of the relay is reduced; and the improved structure is simple and has high applicability.

Description

A kind of relay

Technical field

The utility model relates to the electronic control device field, refers in particular to a kind of relay.

Background technology

Relay is a kind of electric control device, and it has the interactive relationship between control system and the Be Controlled system, is applied to usually in the control circuit of automation, and it is actually a kind of " automatic switch " that goes to control big electric current running with little electric current.So in circuit, play effects such as automatic adjusting, safeguard protection, change-over circuit.At present, the height of general relay is 15mm-20mm, and on the problem of the height of relay, the height that reduces relay is the comparison difficulty.Chinese patent publication number CN2904271Y; Open day on May 23rd, 2007; Name is called in the Chinese utility model patent of " a kind of highly sensitive miniature hermetically sealed electromagnetic relay " and discloses a kind of highly sensitive miniature hermetically sealed electromagnetic relay, comprises leading-out terminal, pedestal, moving contacting plate, preceding quiet contact chip, the quiet contact chip in back, armature, yoke, shelf, cover plate, spring leaf, packing ring, supporting spring, contact pin etc., and yoke is fixed on the pedestal; Fixing on the shelf through spot welding again; Be fixed with spring leaf on the cover plate, be provided with packing ring between armature and the shelf, this utility model volume is little, in light weight, low in energy consumption.But this utility model just at the position of part such as shelf and armature be designed to reduce on the one space of relay, do not make improvement on the volume to coil.

The utility model content

The purpose of the utility model is to overcome the comparatively difficult shortcoming of height that reduces relay in the prior art, provides a kind of and can significantly reduce the relay height, and do not influence the relay of performance basically.

The purpose of the utility model is to be achieved through following technical proposals:

A kind of relay; Comprise the I shape bobbin, be fixed on coil, the iron core in bobbin, the armature above the iron core, the yoke outside the bobbin, movable contact spring and static contact spring piece on the bobbin; Movable contact spring includes moving contact; Static contact spring piece includes fixed contact, and coil is miniature and coil that closely twine, and the radius of bobbin is greater than the height of bobbin.Coil adopts closely and twines, can be under the situation of the height that dwindles coil the performance of basic latching relay, simultaneously, bobbin, iron core, yoke height also reduce along with the change of coil height, the radius of new bobbin is greater than the height of bobbin.

As a kind of preferred version, the height of coil is 4mm-4.5mm, and the total height of relay is 9mm-12mm.Coil in this scope does not influence serviceability basically, and present height reduces and will cause the performance of relay significantly to descend.

As a kind of preferred version, the height of coil is 4.4mm, and the total height of relay is 11mm.Coil height 4.4mm, the design of relay total height 11mm has guaranteed the optimized design of the height of relay performance and coil to greatest extent.

As a kind of preferred version, moving contact is the moving contact of center to upper process.Because the magnetic force that the reduction of coil height can make coil produce reduces slightly; Moving contact is that the center reduces moving contact and the required absorption affinity of fixed contact absorption to the design of the moving contact of upper process, and ability latching relay performance is constant under the situation that magnetic force reduces slightly.

As a kind of preferred version, the moving contact of movable contact spring, the fixed contact of static contact spring piece adopt oxygen-free copper to process.Have the low characteristics of conduction voltage drop the fixed contact of processing with hypoxemia copper or iron with respect to existing relay and the moving contact, to the demand reduction of the magnetic force of coil generation.

The beneficial effect of the utility model is that relay is not changing under the situation of performance basically, has reduced the height of whole relay, makes the smaller volume of relay; And this improvement is simple in structure, and applicability is good.

Description of drawings

Fig. 1 is a kind of profile of the utility model.

Fig. 2 is a kind of profile of conventional art relay.

Wherein: 1, yoke, 2, static contact spring piece, 3, bobbin, 4, coil, 5, fixed contact, 6, moving contact, 7, armature, 8, iron core, 9, movable contact spring, 10, shell.

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Embodiment: a kind of relay of the utility model; Its profile is as shown in Figure 1, comprises I shape bobbin 3, is fixed on coil 4 on the bobbin 3, armature 7, the yoke 1 outside the bobbin 3, movable contact spring 9 and static contact spring piece 2 above the iron core in bobbin 38, iron core 8 and the shell 10 of parcel said structure.Moving contact 6 is arranged on the movable contact spring 9, fixed contact 5 is arranged on the static contact spring piece 2, moving contact 6 is the moving contact 6 of center to upper process.The height of coil 4 is 4.4mm, and the height of the coil 4 whole relays that closely twine is 11mm, and the moving contact 6 of movable contact spring 9, the fixed contact of static contact spring piece 25 adopt oxygen-free copper to process.Its profile of conventional means of relay is as shown in Figure 2; The coil 4 of conventional means of relay highly is 7mm; The height of whole relay is 15mm; The utility model highly reduces 3mm nearly than conventional means of relay coil 4, and the height of whole relay reduces 4mm, has reached the effect of remarkable reduction relay height.During relay work; As long as add certain voltage at coil 4 two ends; Will flow through certain electric current in the coil 4; Thereby generation galvanomagnetic effect, armature 7 will overcome the pulling force of return spring under the effect of electromagnetic attracting force inhales to iron core 8, thereby drives the moving contact 6 and fixed contact 5 adhesives of armature 7.After coil 4 outages, the suction of electromagnetism also disappears thereupon, and armature 7 will return original position at the reaction force of spring, and moving contact 6 and original fixed contact 5 are discharged.Adhesive like this, release, thus reached the conducting in circuit, the purpose of cut-out.

Claims

1. relay; Comprise I shape bobbin (3), be fixed on coil (4) on the bobbin (3), armature (7), the yoke (1) outside the bobbin (3), movable contact spring (9) and the static contact spring piece (2) of the iron core (8) in bobbin (3), iron core (8) top; Movable contact spring (9) includes moving contact (6); Static contact spring piece (2) includes fixed contact (5); It is characterized in that described coil (4) is miniature and coil (4) that closely twine, the radius of bobbin (3) is greater than the height of bobbin (3).

2. a kind of relay according to claim 1 is characterized in that, the height of described coil (4) is 4mm-4.5mm, and the total height of relay is 9mm-12mm.

3. a kind of relay according to claim 2 is characterized in that, the height of described coil (4) is 4.4mm, and the total height of relay is 11mm.

4. a kind of relay according to claim 1 is characterized in that, described moving contact (6) is the moving contact (6) of center to upper process.

5. a kind of relay according to claim 4 is characterized in that, the moving contact (6) of described movable contact spring (9), the fixed contact (5) of static contact spring piece (2) adopt oxygen-free copper to process.