CN203250692U - Small large-power magnetic relay - Google Patents

Small large-power magnetic relay Download PDF

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Publication number
CN203250692U
CN203250692U CN 201320297105 CN201320297105U CN203250692U CN 203250692 U CN203250692 U CN 203250692U CN 201320297105 CN201320297105 CN 201320297105 CN 201320297105 U CN201320297105 U CN 201320297105U CN 203250692 U CN203250692 U CN 203250692U
Authority
CN
China
Prior art keywords
projection
contact spring
iron core
spring strip
guide vane
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201320297105
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Chinese (zh)
Inventor
王铁伟
王坚敏
潘明光
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NINGBO TIANBO GANGLIAN ELECTRONICS CO Ltd
Original Assignee
NINGBO TIANBO GANGLIAN ELECTRONICS CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NINGBO TIANBO GANGLIAN ELECTRONICS CO Ltd filed Critical NINGBO TIANBO GANGLIAN ELECTRONICS CO Ltd
Priority to CN 201320297105 priority Critical patent/CN203250692U/en
Application granted granted Critical
Publication of CN203250692U publication Critical patent/CN203250692U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a small large-power magnetic relay and aims at providing the small large-power magnetic relay which is capable of improving the reliability and safety and extending the service lifetime of a relay by increasing the creepage distance to prevent framework burnout caused by short-circuit accidents. The small large-power magnetic relay comprises an iron core (1), a static spring strip (2), a moving spring strip (4) and a framework (5). A locating card (3) is arranged on a support of one end of the static spring strip (2), an insulation stop block (6) is arranged between the locating card (3) and the static spring strip (2), a straight strip-shaped projection (9) separating the iron core and the static spring strip is arranged between the top end of the iron core (6) and the static spring strip (2), a first open groove (7) curved inwards is arranged in the bottom of the insulation stop block (6), and a second open groove (8) is arranged in the top of the insulation stop block (6). The small large-power magnetic relay is widely used for household electrical appliances.

Description

Small high-power electromagnetic relay
Technical field
The utility model relates to a kind of relay, specifically is a kind of small high-power electromagnetic relay.
Background technology
Electromagnetic relay is a kind of electronic control device, usually is applied in the automatic control circuit, is actually a kind of " automatic switch " that remove to control larger electric current with less electric current, so play the effects such as automatic adjusting, security protection, change-over circuit in circuit.Small high-power electromagnetic relay is widely used in the household appliances, and in general, small high-power electromagnetic relay refers to the longest edge size greater than 25 millimeters but is not more than 50 millimeters, the above relay of 10 peaces.
According to prior art, electromagnetic relay generally is comprised of iron core, coil, armature, contact reed.As long as add certain voltage at the coil two ends, will pass through certain electric current in the coil, thereby generation galvanomagnetic effect, armature will overcome the pulling force of back-moving spring under the effect of electromagnetic attracting force inhales to iron core, thereby with moving contact and the fixed contact adhesive of moving armature.Behind coil blackout, the suction of electromagnetism also disappears thereupon, and armature will return original position under the reaction force of spring, makes moving contact and original fixed contact adhesive.Like this adhesive, release, thus reached the conducting in circuit, the purpose of cut-out.Because the continuous energising contact of sound reed, the dynamic and static spring sector-meeting produces oxide powder dust and to the both sides sputter of sound contact, the continuous accumulation of these dust on skeleton, cause the decline of the adhesive performance of the insulating capacity of skeleton and moving contact, make creepage distance more and more less even short circuit accident occurs, burn out skeleton, reliability and fail safe are low, and the life-span is short.
The utility model content
The technical problems to be solved in the utility model is, overcome the defective of above prior art, provide a kind of and burn out skeleton to improve reliability, fail safe, the prolongation relay small high-power electromagnetic relay in useful life by increasing creepage distance to avoid occurring short circuit accident.
Technical solution of the present utility model is, a kind of small high-power electromagnetic relay with following structure is provided, it comprises the iron core that is wound with coil, be provided with the static contact spring piece and the movable contact spring that is provided with moving contact of fixed contact, skeleton, one end support of described static contact spring piece is provided with the spacer of movable contact spring, be provided with the insulation guide vane end stop between described spacer and the static contact spring piece, be provided with the vertical bar shaped projection of cutting off both between the top of described iron core and the static contact spring piece, one end and the skeleton of described vertical bar shaped projection offset, the other end offsets with the insulation guide vane end stop, described insulation guide vane end stop bottom is provided with first open slot that concaves, and described insulation guide vane end stop top is provided with second open slot.
After adopting above structure, the utility model small high-power electromagnetic relay compared with prior art, have the following advantages: this small high-power electromagnetic relay is provided with the vertical bar shaped projection, be used for increasing the creepage distance of the fixed contact of iron core and static contact spring piece, while is provided with the first open slot in insulation guide vane end stop bottom and top has the second open slot, because the existence of these grooves, so that the sound reed is accommodated part because of the oxide powder dust that the energising contact produces, can not affect because of the accumulation of dust insulating capacity and the performance of product, creepage distance lengthens, reliability and safe, long service life.
As preferably, described vertical bar type projection upper surface is provided with to limit the first projection and the second projection that movable contact spring swings, distance between described the first projection and the second projection is greater than the width of movable contact spring, in order to can play the effect that swings of restriction movable contact spring, improved the sensitivity of relay, guaranteed that movable contact spring can work.
As preferably, the height of described the first projection is consistent with the second projection, and processing is simple, has guaranteed that better movable contact spring can not swing.
Description of drawings
Fig. 1 is the schematic diagram of the utility model small high-power electromagnetic relay skeleton.
Fig. 2 is the schematic diagram of the utility model small high-power electromagnetic relay.
Fig. 3 is the enlarged diagram that movable contact spring is connected with static contact spring piece, spacer.
As shown in the figure:
1, iron core, 2, static contact spring piece, 2.1, fixed contact, 3, spacer, 4, movable contact spring, 4.1, moving contact, 5, skeleton, 6, the insulation guide vane end stop, the 7, first open slot, the 8, second open slot, 9, the vertical bar shaped projection, the 10, first projection, the 11, second projection.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
As shown in Figure 1, the utility model small high-power electromagnetic relay, it comprises the iron core 1 that is wound with coil, be provided with the static contact spring piece 2 and the movable contact spring 4 that is provided with moving contact 4.1 of fixed contact 2.1, skeleton 5, one end support of described static contact spring piece 2 is provided with the spacer 3 of movable contact spring 4, be provided with insulation guide vane end stop 6 between described spacer 3 and the static contact spring piece 2, be provided with the vertical bar shaped projection 9 of cutting off both between the top of described iron core 1 and the static contact spring piece 2, both refer to top and the static contact spring piece 2 of iron core 1, one end and the skeleton 5 of described vertical bar shaped projection 9 offset, the other end offsets with insulation guide vane end stop 6, described insulation guide vane end stop 6 bottoms are provided with first open slot 7 that concaves, described insulation guide vane end stop 6 tops are provided with second open slot 8, this small high-power electromagnetic relay is provided with vertical bar shaped projection 9, be used for increasing the creepage distance of iron core 1 and the fixed contact 2.1 of static contact spring piece 2, insulating second simultaneously, guide vane end stop 6 bottoms are provided with the first open slot 7 and top has the second open slot 8, wherein, insulation guide vane end stop 6 when spacer is installed to its location, because the existence of these grooves, so that the sound reed is accommodated part because of the oxide powder dust that the energising contact produces, can not affect because of the accumulation of dust insulating capacity and the performance of product, creepage distance lengthens, reliability and safe, long service life.
As preferably, described vertical bar type projection 9 upper surfaces are provided with to limit the first projection the 10 and second projection 11 that movable contact spring 4 swings, distance between described the first projection the 10 and second projection 11 is greater than the width of movable contact spring 4, in order to can play the effect that swings of restriction movable contact spring 4, improved the sensitivity of relay, guaranteed that movable contact spring 4 can work.
As preferably, the height of described the first projection 10 is consistent with the second projection 11, and processing is simple, has guaranteed that better movable contact spring 4 can not swing.

Claims (3)

1. small high-power electromagnetic relay, it comprises the iron core (1) that is wound with coil, be provided with the static contact spring piece (2) of fixed contact (2.1) and be provided with the movable contact spring (4) of moving contact (4.1), skeleton (5), one end support of described static contact spring piece (2) is provided with the spacer (3) of movable contact spring (4), be provided with insulation guide vane end stop (6) between described spacer (3) and the static contact spring piece (2), it is characterized in that: be provided with the vertical bar shaped projection (9) of cutting off both between the top of described iron core (1) and the static contact spring piece (2), one end and the skeleton (5) of described vertical bar shaped projection (9) offset, the other end offsets with insulation guide vane end stop (6), described insulation guide vane end stop (6) bottom is provided with first open slot (7) that concaves, and described insulation guide vane end stop (6) top is provided with second open slot (8).
2. small high-power electromagnetic relay according to claim 1, it is characterized in that: described vertical bar type projection (9) upper surface is provided with to limit the first projection (10) and the second projection (11) that movable contact spring (4) swings, and the distance between described the first projection (10) and the second projection (11) is greater than the width of movable contact spring (4).
3. small high-power electromagnetic relay according to claim 2, it is characterized in that: the height of described the first projection (10) is consistent with the second projection (11).
CN 201320297105 2013-05-27 2013-05-27 Small large-power magnetic relay Expired - Fee Related CN203250692U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320297105 CN203250692U (en) 2013-05-27 2013-05-27 Small large-power magnetic relay

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320297105 CN203250692U (en) 2013-05-27 2013-05-27 Small large-power magnetic relay

Publications (1)

Publication Number Publication Date
CN203250692U true CN203250692U (en) 2013-10-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320297105 Expired - Fee Related CN203250692U (en) 2013-05-27 2013-05-27 Small large-power magnetic relay

Country Status (1)

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CN (1) CN203250692U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108565181A (en) * 2018-06-12 2018-09-21 哈尔滨工业大学 A kind of electromagnetic relay structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108565181A (en) * 2018-06-12 2018-09-21 哈尔滨工业大学 A kind of electromagnetic relay structure

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20131023

Termination date: 20190527

CF01 Termination of patent right due to non-payment of annual fee