CN2390278Y

CN2390278Y - Small-size high-power relay

Info

Publication number: CN2390278Y
Application number: CN 99218304
Authority: CN
Inventors: 冯波; 杨晓厦; 徐耀章; 王典荣
Original assignee: SINO FOREIGN JOINT VENTURE NIN
Current assignee: SINO FOREIGN JOINT VENTURE NIN
Priority date: 1999-07-21
Filing date: 1999-07-21
Publication date: 2000-08-02
Anticipated expiration: 2009-07-21

Abstract

The utility model relates to an electromagnetic relay, which is particularly suitable for being matched with cars, electric appliances for machine tools, air conditioners, various household appliances. The electromagnetic relay is connected with an iron core, a coil, yoke iron, a terminal pin, a coil frame of an upper and a lower contact sheets with fixed contacts, a movable contact sheet with a movable contact, an armature, and yoke iron. Through the terminal pin, the upper and the lower fixed contact sheets and a foot of the yoke iron are fixed onto a bottom plate and are arranged in a cover shell. An insulating sheet is also connected to a coil frame between the coil and the yoke iron. Because of the insulating sheet, creepage distance and insulating resistance among current conducting parts can be added, and voltage resistance strength of the media can be increased.

Description

Small high-power relay

The utility model relates to a kind of electromagnetic relay, suitable especially and automobile, Machine Tool Electric Appliance, electronic equipment, air conditioner and the matching used small high-power relay of various household electrical appliance.

The existing T90 of Shi Yonging (4115) miniature relay, its contact load is 30A/14VDC to the maximum, and dielectric withstanding voltage intensity is low, also is not suitable for building in peace requiring highly, and dielectric strength requires to use on the big household electrical appliance.

The purpose of this utility model is to provide a kind of small high-power relay, under the constant situation of the profile that keeps original relay and overall dimension, can increase substantially the performances such as contact load of relay.

The utility model is achieved in that small high-power relay is connected with armature, yoke with the movable contact spring that has moving contact by the bobbin of the upper and lower contact chip that is connected with iron core, coil, yoke, lead wire, band fixed contact, pass through terminal pin, upper and lower static contact, yoke pin are fixed on the base plate, be installed in the case and constitute, on the bobbin that described coil and yoke are asked, also be connected with insulating trip.

Fig. 1. structural representation of the present utility model (taking away base plate).

Fig. 2. the A of Fig. 3 is to view.

Fig. 3. the vertical view of Fig. 1.

Fig. 4. the coil holder structure schematic diagram.

Fig. 5. the rearview of Fig. 4.

Fig. 6. the left view of Fig. 4 (cutaway view).

Below in conjunction with accompanying drawing embodiment of the present utility model is further described:

Case (3), base plate (14), coil (6), (2) unshakable in one's determination, terminal pin (9) is all same as the prior art does not describe in detail.

Have on one side of yoke (8) and yoke (8) yoke pin (16) in aggregates, also can on perpendicular another side, draw a yoke pin more as required, as shown in Fig. 2, Fig. 3.

In the middle of the bobbin (10) is pipe, one side of upper end has two to fuse, and on the framework of through hole and groove is arranged, there is a groove (15) the upper end edge of the lower surface of side in addition, the lower end is a rectangle, top surface edge has a groove (15) corresponding with upper end groove (15), and lower surface is fluted to be cooperated with yoke (8), and there is two terminal pins (9) mold insert the centre.Insulating trip (7) is what made by polyamine polyamine acid ester, nylon or PBT plastic insulation material

The shape thin slice.

Unshakable in one's determination (2) are inserted in riveting jail in the coil (6) that is fixed on the bobbin (10) and yoke (8) hole, to go up, following static contact (13), (11) insert bobbin (10) and go up corresponding through hole and groove internal fixation, and with fixed contact (12) respectively riveted and fixed last, following static contact (13), (11) on, the movable contact spring (4) that will drive contact (1) and armature (5) is again riveted respectively and point is welded on the yoke (8), and on the bobbin (10) between coil (6) and yoke (8), insert insulating trip (7) in the low groove (15), the above-mentioned electromagnetic system that assembles is partly passed through two terminal pins (9), on, following static contact (13), (11), yoke pin (16) is inserted on the base plate (14), covers case (3), at the periphery injection encapsulating compound of base plate (14) with case (3), be solidified into holistic relay.

During use, make terminal pin (9) connect power supply, coil (6), (2) unshakable in one's determination produce suction, and adhesive armature (5) moves down, and opens normally-closed contact, and the break-make of conducting normally opened contact, change-over circuit plays the effect of automatic control.

The utility model is compared with prior art: upper because of the bobbin between coil and yoke, inserted insulating trip in the low groove, increased the creep age distance between coil and yoke, therefore increased the compressive resistance of medium, make and to bear 2500 volts alternating current between contact and coil, can bear 1500 volts alternating current between break contact, and contact load voltage also can improve, make normally opened contact reach 40A/250VAC, 30VDC, normally-closed contact reaches 30A/250VAC, 30VDC, a side of bobbin has two frameworks in addition, make, through hole and groove that lower static contact all embeds thereon are interior fixing, guarantee the distance of contactor gap, improved properties of product.

Claims

1. small high-power relay, by being connected with iron core (2), coil (6), yoke (8), terminal pin (9), being with the upper and lower contact chip (13) of fixed contact (12), the bobbin (10) of (11) to be connected with armature (5), yoke (8) with the movable contact spring that has moving contact (1) (4), by lead wire (9), upper and lower static contact (13), (11), yoke pin (16) are fixed on the base plate (14), be installed in formation in the case (3), it is characterized in that also being connected with insulating trip (7) on the bobbin (10) between described coil (6) and yoke (8).

2. according to the described relay of claim l, it is characterized in that in the middle of the bobbin (10) be pipe, one side of upper end has two to fuse, and on the framework of through hole and groove is arranged, there is a groove (15) the upper end edge of the lower surface of side in addition, and the lower end is a rectangle, and top surface edge has a groove (15) corresponding with upper end groove (15), lower surface is fluted to be cooperated with yoke (8), and there is two terminal pins (9) mold insert the centre; Insulating trip (7) is what made by insulating material

The shape thin slice.

3. relay according to claim 1 is characterized in that insulating trip (7) is fixedly connected in the upper and lower groove (15) on the bobbin (10).