CN1253910C - Electromagnetic relay with flexible forked moving spring - Google Patents
Electromagnetic relay with flexible forked moving spring Download PDFInfo
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- CN1253910C CN1253910C CN 03120338 CN03120338A CN1253910C CN 1253910 C CN1253910 C CN 1253910C CN 03120338 CN03120338 CN 03120338 CN 03120338 A CN03120338 A CN 03120338A CN 1253910 C CN1253910 C CN 1253910C
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- moving spring
- push card
- relay
- electromagnetic relay
- contact
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Abstract
The present invention relates to an electromagnetic relay which has good vibration resistance and impact resistance and has a normally closed contact. The electromagnetic relay is composed of a magnetic circuit part, a push clip, a contact part and a casing, wherein the contact part is at least provided with a normally closed fixed spring part and a movable spring part, the contact part is connected with the magnetic circuit part by the push clip, and a movable spring is provided with a flexible branch fork. Because the movable spring is provided with the flexible branch fork, the movable spring can be used for reducing and even eliminating the free motion stroke of the push clip when the relay is in a release state; thus, the vibration resistance and the impact resistance of the electromagnetic relay with a normally closed contact are obviously improved. When the relay is in an attracting state, the movable spring is pushed in the direction of the movable spring by the push clip. The flexible branch fork can be mutually separated from the push clip or can be mutually in connect with the push clip, but the contact pressure is obviously smaller than the pressure of the working contact face. The properties of action sensitivity, etc. of products are slightly influenced. When the relay is the attracting state, the flexible branch fork is mutually separated from the push clip, which is the best mode of the present invention.
Description
(1) technical field
The present invention relates to a kind of electromagnetic relay, especially a kind of electromagnetic relay with normally-closed contact with excellent shock, impact property.
(2) background technology
Electromagnetic relay is a kind of electromechanical compo that is widely used in various household electrical appliance, office equipment, Industry Control.Usually electromagnetic relay by contact portion, magnetic circuit part, be connected and fixed part and form.Machine product often is used in the various rugged environments, therefore requires relay to have good anti-vibration, impact property, to guarantee the reliability of product work.For the relay that has push card mechanism, usually, when relay is in release condition, there is the free travel that is enough to guarantee product electric life performance between moving spring working face and push card working face with normally-closed contact.Because the existence of this free travel makes relay when release condition,, be prone to the fault that normally-closed contact disconnects along the poor-performing of the anti-vibration on the push card pushing direction, impact.
The contact portion of existing a kind of electromagnetic relay (as Fig. 1) is provided with normally closed quiet spring part 1, moving spring part 2 at least, contact portion is connected by push card 4 with magnetic circuit part 3, when relay was in release condition, the moving spring working face 5.1 and 4.1 existence of face that push the work forward were enough to guarantee the free travel 6 of product electric life performance.When relay is in attracting state (referring to Fig. 2), moving spring working face 5.1 contacts with push card working face 4.1.
The contact portion of existing another kind of electromagnetic relay (as Fig. 3) is provided with normally closed quiet spring part 7, moving spring part 8 at least, and contact portion is connected by push card 10 (referring to Fig. 4) with magnetic circuit part 9.On the moving spring 11 (as Fig. 5) two bifurcateds 11.1,11.2 are arranged, push card realizes the conversion of contact by two bifurcateds 11.1,11.2 that promote moving spring.When relay is in release condition, working face 11.1.1, the 11.2.1 of two bifurcateds 11.1,11.2 of moving spring and the free travel 12,13 that 10.1,10.2 existence of push card working face are enough to guarantee product electric life performance.When relay was in attracting state, working face 11.1.1, the 11.2.1 of two bifurcateds 11.1,11.2 of moving spring contacted with push card working face 10.1,10.2 respectively.
The contact portion of existing another kind of electromagnetic relay (as Fig. 6) is provided with normally closed quiet spring part 14, moving spring part 15 at least, contact portion is connected by push card 17 with magnetic circuit part 16, when relay is in release condition, the working face 18.1 of moving spring 18 and the free travel 19 that 17.1 existence of push card working face are enough to guarantee product electric life performance.When relay was in attracting state, moving spring working face 18.1 contacted with push card working face 17.1.
Along with the development of product, the contact force of relay is more and more littler, and the ability of anti-vibration, impact may progressively reduce.Do not influencing or influencing less under the prerequisite of other performances of relay, improving its anti-vibration, impact property has increasing meaning.
(3) summary of the invention
The object of the present invention is to provide a kind of electromagnetic relay with normally-closed contact with excellent shock, impact property.
The present invention is made up of magnetic circuit part, push card, contact portion, shell.Contact portion is provided with normally closed quiet spring part, moving spring part at least, contact portion is connected by push card with the magnetic circuit part, when relay is in release condition, enough free travels are arranged between moving spring working face and the push card working face to guarantee the electric life requirement of product.Moving spring is provided with flexible bifurcated.Its flexible bifurcated contacts with push card, and the gap between perhaps flexible bifurcated and the push card is less than the distance between moving spring working face and the push card working face.
Owing on moving spring, establish flexible bifurcated, can be used for reducing even the free movable stroke of the push card when eliminating relay and being in release condition, so improved anti-vibration, the shock resistance of electromagnetic relay significantly with normally-closed contact.When relay is in attracting state, push card promotes moving spring towards moving spring direction, can be to be separated from each other between flexible bifurcated and push card, also can be to be in contact with one another, but contact pressure should be significantly less than the pressure of work contact-making surface, and is less to the performance impacts such as action sensitivity of product.When relay was in attracting state, it was best mode of the present invention that flexible bifurcated and push card are separated.
(4) description of drawings
Structural representation when Fig. 1 is in release condition for a kind of electromagnetic relay.
Structural representation when Fig. 2 is in attracting state for a kind of electromagnetic relay.
Structural representation when Fig. 3 is in release condition for another kind of electromagnetic relay.
Fig. 4 is the push card structural representation of another kind of electromagnetic relay.
Fig. 5 is the moving spring structure schematic diagram of another kind of electromagnetic relay.
Structural representation when Fig. 6 is in release condition for another kind of electromagnetic relay.
Structural representation when Fig. 7 is in release condition for the embodiment of the invention 1.
Structural representation when Fig. 8 is in attracting state for the embodiment of the invention 1.
Fig. 9 is the push card figure of the embodiment of the invention 1.
Figure 10 is the moving spring figure of the embodiment of the invention 1.
Structure chart when Figure 11 is in release condition for the embodiment of the invention 2.
Structure chart when Figure 12 is in attracting state for the embodiment of the invention 2.
Figure 13 is the push card figure of the embodiment of the invention 2,3.
Figure 14 is the moving spring figure of the embodiment of the invention 2.
Structure chart when Figure 15 is in release condition for the embodiment of the invention 3.
Structure chart when Figure 16 is in attracting state for the embodiment of the invention 3.
Figure 17 is the moving spring figure of the embodiment of the invention 3.
(5) embodiment
Embodiment 1: the first kind of structure of the present invention as Fig. 7～10 is made up of following quiet spring part 21, upper electrostatic spring part 22, moving spring part 23, armature 24, yoke 25, coil 26, base 27, shell etc.Quiet spring part 21, upper electrostatic spring part 22, moving spring part 23, base 27 constitute contact portion down.Armature 24, yoke 25, coil 26 etc. constitute the magnetic circuit part.Contact portion partly is connected by push card 28 with magnetic circuit.When relay is in release condition (as Fig. 7), enough free travels 20 are arranged to guarantee the electric life requirement of product between moving spring working face 29.2 and the push card working face 28.1, moving spring 29 is provided with flexible bifurcated 29.1, flexible bifurcated 29.1 contact with push card or its gap less than distance between moving spring working face 29.2 and the push card working face 29.1.When applying enough voltage on the coil 26, armature 24 moves to yoke 25 directions, push card 28 moves to moving spring 29 directions simultaneously, push card non-working surface 28.2 contacts with the flexible bifurcated 29.1 of moving spring earlier, then, push card working face 28.1 contacts with moving spring working face 29.2, and then push card 28 promotes 211 rotations of moving spring 29 moving spring brackets, and the pressure of 29.1 pairs of push card 28 of flexible bifurcated of moving spring is corresponding to be reduced gradually.When armature 24 adhesives put in place, relay is in attracting state (as Fig. 8), and the flexible bifurcated 29.1 of moving spring separates with push card 28.
Embodiment 2: shown in Figure 11～14, the present invention is by quiet spring part 31, upper electrostatic spring part 32, moving spring part 33, armature 34, yoke 35, coil 36, base 37, shell etc. are formed down.Quiet spring part 31, upper electrostatic spring part 32, moving spring part 33, base 37 constitute contact portion down.Armature 34, yoke 35, coil 36 etc. constitute the magnetic circuit part.Contact portion partly is connected by push card 38 with magnetic circuit.When relay is in release condition (as Figure 11), enough free travels 30 are arranged to guarantee the electric life requirement of product between moving spring working face 39.2 and the push card working face 38.1, moving spring 39 is provided with flexible bifurcated 39.1, flexible bifurcated 39.1 contact with push card or its gap less than distance between moving spring working face 39.2 and the push card working face 39.1.When applying enough voltage on the coil 36, armature 34 rotates around yoke 35 fulcrums 35.1, push card 38 moves to moving spring 39 directions simultaneously, push card non-working surface 38.2 contacts with the flexible bifurcated 39.1 of moving spring earlier, then, push card working face 38.1 contacts with moving spring working face 39.2, and then push card 38 promotes moving spring 39 rotations.When armature 34 adhesives put in place, relay is in attracting state (as Figure 12), and the flexible bifurcated 39.1 of moving spring still contacts with push card 38, but contact pressure is significantly less than the pressure on the working face.
Embodiment 3: shown in Figure 13,15～17, the present invention is by quiet spring part 41, upper electrostatic spring part 42, moving spring part 43, armature 44, yoke 45, coil 46, base 47, shell etc. are formed down.Quiet spring part 41, upper electrostatic spring part 42, moving spring part 43, base 47 constitute contact portion down.Armature 44, yoke 45, coil 46 etc. constitute the magnetic circuit part.Contact portion partly is connected by push card 48 with magnetic circuit.When being in release condition, relay (sees Figure 15), enough free travels 40 are arranged to guarantee the electric life requirement of product between moving spring working face 49.2 and the push card working face 48.1, moving spring 49 is provided with flexible bifurcated 49.1, flexible bifurcated 49.1 contact with push card or its gap less than distance between moving spring working face 49.2 and the push card working face 49.1.When applying enough voltage on the coil 46, armature 44 rotates around yoke 45 fulcrums 45.1, push card 48 moves to moving spring 49 directions simultaneously, push card non-working surface 48.2 contacts with the flexible bifurcated 49.1 of moving spring earlier, then, push card working face 48.1 contacts with moving spring working face 49.2, and then push card 48 promotes moving spring 49 rotations, and the pressure of 49.1 pairs of push card 48 of flexible bifurcated of moving spring is corresponding to be reduced gradually.When armature 44 adhesives put in place, relay is in attracting state (seeing Figure 16), and the flexible bifurcated 49.1 of moving spring separates with push card 48.
Claims (2)
1, moves the electromagnetic relay of spring with flexible bifurcated, form by magnetic circuit part, push card, contact portion, shell, contact portion is provided with normally closed quiet spring part, moving spring part at least, and contact portion is connected by push card with the magnetic circuit part, it is characterized in that being provided with in moving spring free end top one side
The flexible bifurcated of shape, the gap between flexible bifurcated and the push card is less than the distance between moving spring working face and the push card working face.
2, the electromagnetic relay of the moving spring of the flexible bifurcated of band as claimed in claim 1 is characterized in that its flexible bifurcated contacts with push card.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03120338 CN1253910C (en) | 2003-03-14 | 2003-03-14 | Electromagnetic relay with flexible forked moving spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03120338 CN1253910C (en) | 2003-03-14 | 2003-03-14 | Electromagnetic relay with flexible forked moving spring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1437211A CN1437211A (en) | 2003-08-20 |
| CN1253910C true CN1253910C (en) | 2006-04-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03120338 Expired - Lifetime CN1253910C (en) | 2003-03-14 | 2003-03-14 | Electromagnetic relay with flexible forked moving spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1253910C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100397539C (en) * | 2005-01-20 | 2008-06-25 | 厦门宏发电声有限公司 | Integrated reed and use thereof |
| CN103985606B (en) * | 2014-03-31 | 2015-12-30 | 国家电网公司 | A kind of structure of contact terminal and method eliminating closing rebound |
-
2003
- 2003-03-14 CN CN 03120338 patent/CN1253910C/en not_active Expired - Lifetime
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| Publication number | Publication date |
|---|---|
| CN1437211A (en) | 2003-08-20 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 361021 Fujian Province, Xiamen city Jimei North Industrial Zone sun ban Road No. 91-101 Patentee after: Xiamen Hongfa Electroacoustic Co.,Ltd. Address before: 361021 Fujian Province, Xiamen city Jimei North Industrial Zone sun ban Road No. 91-101 Patentee before: Xiamen Hongfa Electroacoustic Co.,Ltd. |
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: SICHUAN HONGFA ELECTROACOUSTIC Co.,Ltd. Assignor: Xiamen Hongfa Electroacoustic Co.,Ltd. Contract record no.: 2010510000078 Denomination of invention: Electromagnetic relay with flexible forked moving spring Granted publication date: 20060426 License type: Exclusive License Open date: 20030820 Record date: 20100925 |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20060426 |