CN1862744A - Contact arrangement for a relay - Google Patents
Contact arrangement for a relay Download PDFInfo
- Publication number
- CN1862744A CN1862744A CNA2006100817037A CN200610081703A CN1862744A CN 1862744 A CN1862744 A CN 1862744A CN A2006100817037 A CNA2006100817037 A CN A2006100817037A CN 200610081703 A CN200610081703 A CN 200610081703A CN 1862744 A CN1862744 A CN 1862744A
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- contact
- crown
- tooth
- making device
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- 238000000034 method Methods 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims 1
- 210000000332 tooth crown Anatomy 0.000 abstract 2
- 230000015572 biosynthetic process Effects 0.000 description 5
- 230000033001 locomotion Effects 0.000 description 4
- 238000004080 punching Methods 0.000 description 4
- 238000007781 pre-processing Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000007514 turning Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/06—Contacts characterised by the shape or structure of the contact-making surface, e.g. grooved
Landscapes
- Contacts (AREA)
Abstract
The invention relates to a contact arrangement for a relay, comprising a contact head (11) which has a tooth crown (17) which surrounds a contact surface (15) and is convex with respect to the contact surface. According to the invention, the tooth crown (17) is interrupted at a plurality of positions in order to increase the contact reliability in dry switching loads, whereby the teeth (21) and the intermediate spaces between the teeth (21) are formed. The crown contact bears obliquely against a toothless crown contact in the closed position of the contact arrangement. The contact spring (23) supporting the movable contact can be formed in a rotatable manner. This enables the crown contact (11) to be reliably brought into contact with the adjacent non-crown contact (25) at two small-area contact positions with a high unit surface pressure.
Description
Technical field
The present invention relates to a kind ofly to be used for relay, in particular for the contact making device of " dry type " switch load, this relay has a contact of being furnished with a crown, the invention still further relates to a kind of relay with such contact making device.
Background technology
By the known a kind of electrical contact of JP 56-107418 and a kind of method that is used to process electrical contact.The accompanying drawing of this document illustrates a disk with nine teeth, and they are along the circumference setting of disk.These teeth are used for connecing by cold welding contact are fixed on a contact supporting.
By DE 31 28 929 known a kind of contact making devices that are used for switchgear.A contact has a crown in this contact making device, and it has the contact wire of a round sealed.Another and this coefficient contact of contact has a contact wire equally.This contact wire can be a straight line, perhaps also can be made of circularly crown.The contact wire of two coefficient contacts intersects, and produces two crosspoints thus respectively, and contact can contact on the crosspoint.
By DD 150 669 known a kind of electric contact pairs, wherein contact has circular profile and is symmetrical in an axis that passes the profile center of circle.The contact-making surface of such contact on the edge around constituting projectedly.The projection of this protrusion carries out the transition to a recessed surface towards the center.This projection can have the space.The arching projectedly of another contact.Contact pair by such formation can reduce transition resistance and scaling loss.Other advantage be based on the non-symmetrical switch position high resistivity, make the contact-making surface cooling, prolong entire life and strengthen reliability owing to strengthening its size.
By the known a kind of relay of German utility model DE 90 06 430.5U, it is applied to the control loop of so-called dry type connection or the control loop of underload.In order to reduce or to avoid pollution layer resistance and advise, have on one or two contact of a contact pair one or more on another contact direction the projection of sculptured protrusion.Make the contact-making surface on the contact position obviously reduce and improve thus contact pressure by these projectioies.These projectioies are pushed the contact-making surface formation of arching and only high by 5 to 100, preferred 10 to 50 microns than remaining contact-making surface by middle heart on contact-making surface.
Summary of the invention
The objective of the invention is a kind of relay of suggestion, a kind of contact or a kind of contact making device, improve contact reliability (when connecting, not forming discharge spark) for " dry type " switch load by it or they.Especially can on the contact position of two contacts, realize high as far as possible unit contact pressure and realize 2 contacts simultaneously more reliably.Second contact that described contact and one do not have crown and a smooth formation is connected being no less than on two the contact position of small size.
This purpose is achieved by the theme of independent claims.
A kind of have contact making device that at least one dry type of being used for a current circuit connect with one according to the known mode of DE 90 06 430.6U according to relay of the present invention.Have one first contact at one in known manner in according to contact making device of the present invention, it has an annular crown, and has one second contact, and it concurs by the contact-making surface and first contact that a no crown constitutes.The diameter of described crown is less than the diameter of the contact-making surface of second contact.Contact is arranged on the contact spring and is mobilizable.Be in inclination each other at two contacts of on-position, described crown do not leaned on corresponding contact around ground, but only roof pressure on a little circle section.Reach higher relatively roof pressure power thus.
Purpose of the present invention is achieved thus according to the present invention, makes crown pass through many teeth on the one hand and constitutes, and they are separated from each other by the interruption in the crown, and contact spring can be constituted with reversing.Guarantee thus, two tooth tops of first contact are leaned against on the contact-making surface of second contact at on-position.
Guarantee also that thus a crown single, that contact is separated always can not hinder electricity to connect at the contact position of two contacts.Be arranged on contact on the contact spring and reverse the axis that centers on contact spring by contact spring itself in this case and reverse, lean against on the contact-making surface of corresponding contact up to one second tooth top of crown and electric current is flowed.Realize 2 contacts thus, it is more reliable than the single-point contact that realizes in DE 90 06 430.6U.
In a preferred embodiment, described tooth is provided with a spacing rule compartment of terrain with the contact circumference.Guarantee that with the spacing of contact circumference described tooth drops into the inside of contact-making surface and the corresponding contact of dogging on the edge of contact-making surface not for the corresponding contact of an identical size.
Described crown has a diameter, this diameter the first contact diameter 1/3rd to 2/3rds between.The diameter of described crown preferably is the diameter of rivet bar to the maximum, especially preferably equals the diameter of rivet bar.This can be applied to a big active force on the position of manufactured head, and crown can constitute by cold forming on this position.
To have the contact of an annular crown in order at first being shaped, and additionally in this annular crown, for example to pass through the drift formation interruption of a radial by crown contact of a cold forming process processing.Obtain a crown that constitutes by the interruption between tooth that replaces and the tooth thus.
In suitable mode interruption just is shaped when the contact riveting being entered a contact supporting the inside.This can make tooth with respect to contact supporting, promptly for example the position of a contact spring or a fixing plate is always aimed in the same manner.An interruption advantageously constitutes on an axis of contact spring.Need not to form a full circle at this crown, but can only exist only on the axis of contact spring, but vacate a lateral spacing,, lean against on the corresponding contact up to next tooth top because contact only reverses with this axis.
At a contact that is used for the relay contact device, it has one and surrounds a crown contact-making surface, that protrude than contact-making surface, this crown constitutes a contact seamed edge, interrupts on many positions according to the seamed edge of the crown of projection of the present invention, constitutes the intermediate space between tooth and the tooth thus.
If such crown roof pressure is smooth, the plane of one second contact of contact making device or the contact-making surface of arching on, then a small spring force is enough to realize a high unit plane pressure on contact position.Therefore can realize the roof pressure power that this is high, because tooth is leaning on smooth contact-making surface on the contact position of small size.Roof pressure is on two contact positions reliably each other for two contacts in addition, because when contact is in contact with one another on the position of two spaces, described contact is just removed spring pressure by crown torsional rigid ground.These two positions are for according to contact of the present invention all being unusual small size.
Described crown constitutes by many teeth that increase on the contact circumference that shrinks along with the spacing with contact-making surface in suitable mode.Therefore described contraction can constitute continuously, makes to constitute up to 0.1mm tartly as the contact seamed edge blade widely.Although make these tooth contact seamed edges have minimum size but the basis that also has a rigidity by the tooth that shrinks, make tooth be superior to contact force and therefore indeformable thus.Many teeth guarantee contacts the layout on the leaf spring of contact can with one arbitrarily the tooth orientation realize and in each possible device, just reverse having made two teeth set up reliable 2 contacts respectively for very small leaf spring.
Described contact seamed edge is preferably in to have one 0.01 to 0.7 millimeter, is preferably 0.01 to 0.2 millimeter, preferred especially 0.02 to 0.1 millimeter length between the interruption.This size defines the full-size of the contact area of a contact.Yet, the contact area of a single tooth can take advantage of width littler than the length of the contact seamed edge of second tooth, because in most of the cases each tooth only leans on opposed contact with two single end points that are arranged in the end points of the contact seamed edge on each tooth.
Described tooth is arranged on the circumference of contact with uniform spacing each other in suitable mode.Not having the position of contact thus is prerequisite for another contact, but each position all equates for another contact.The quantity of described tooth depend on the circumference of crown and according to the diameter of crown preferably between 10 to 60.Preferably there are 24 to 40 teeth in the crown that is approximately 2.4mm for diameter.
Described teeth directional the side that the contact-making surface that is surrounded by crown advantageously has a progressive forming respectively.This makes that the crackle (for example stress cracking) that produces is minimum in contact.
Smooth and the plane earth of the contact-making surface that is surrounded by crown or slightly to constitute be favourable on microprotrusion ground.On contact-making surface, can constitute the exoncoma at a center, be used for one " wet type is connected " but, be that the contact of scaling loss has lost material as much as possible when using contact thereon.
Described contact is a manufactured head in suitable mode, and it has a contact with crown that shapes and is a deformable rivet bar on manufactured head in the rear end.Can utilize the rivet countersunk head in order to rivet manufactured head, as employed for the crown contact that does not have tooth.
But also can make welding contact or solder contacts be furnished with one according to zigzag crown of the present invention.
Be used for a relay or in the contact making device of a relay with at least two contacts at one, one of them first contact surrounds a crown contact-making surface, projection by one and constitutes, this crown constitutes a contact seamed edge, seamed edge according to the crown of projection of the present invention interrupts on many positions, constitutes tooth thus.Described contact is arranged on the contact spring in suitable mode, especially riveted joint, soldering or be welded on the contact spring.These contact springs are leaf springs, and they participate in reversing of determining.Therefore they improve reliability, all guarantee 2 contacts in all cases.
Yet second contact that concurs with first contact does not advantageously have crown ground formation.It only constitutes a smooth corresponding body, and first contact leans on corresponding body with definite angle of crown with one.Therefore second contact preferably has smooth, the plane an or contact-making surface of arching slightly.
First and second contacts are oppositely arranged each other in suitable mode, make first contact with crown connect with the marginating compartment ground of this contact-making surface on the contact-making surface of second contact.This point for example realizes thus, makes second contact have a bigger diameter of ratio first contact.But contact also can lean mutually prejudicially mutually.Only need to make crown contact to tilt at contact position with respect to second contact with crown.Must leaning on this contact in the contact-making surface inside of second contact foremost of the crown that tilts.
Description of drawings
Fig. 1 illustrates a perspective view with manufactured head of zigzag crown,
Fig. 2 illustrates a contact making device with such manufactured head,
Fig. 3 illustrates the on-position according to the contact making device of Fig. 2,
Fig. 4 illustrates a transfer contact device, it have two static, have a smooth change over contact respectively according to contact of the present invention and in both sides,
Fig. 5 illustrates a transfer contact device, and it has a change over contact, and it has one in a side and has a smooth punching out contact according to contact of the present invention and on an opposed side,
Fig. 6 illustrates the end view of a contact, and it has a zigzag crown,
Fig. 7 illustrates the front view according to the contact of Fig. 6,
Fig. 8 illustrates the perspective view of contact,
Fig. 9 illustrates the view of a contact, and it has local crown,
Figure 10 illustrates the front view according to the contact of Fig. 9,
Figure 11 illustrates the perspective view of same contact,
Figure 12 illustrates the view of a contact, and it has tooth on four turnings,
Figure 13 illustrates the front view according to the contact of Fig. 9,
Figure 14 illustrates the perspective view of same contact,
Figure 15 illustrates the on-state of a normally-closed contact,
Figure 16 illustrates the on-state of a normally opened contact,
Figure 17 illustrates a perspective view according to relay of the present invention.
Embodiment
At the contact shown in Fig. 1 11 are manufactured heads.Therefore it has a contact 13, and this contact has a contact-making surface 15, and it is by crown 17 fringings.This contact has the rivet bar 19 that is arranged on the contact 13 in the rear end, it is used for making contact 11 be fixed on the leaf spring and injects and dash the inside, a hole that is connected on leaf spring.Constitute by 40 teeth 21 for the contact 11 described crowns 17 that form.But this quantity depends on the fineness of crown circumference and tooth.Described contact is the plane between tooth 21, and the contact-making surface but also the intermediate space between two adjacent teeth 21 that are not only surrounded by tooth all are the planes.But described contact also can omit microprotrusion or be furnished with common exoncoma.Yet the plane that the height of projection in the contact-making surface centre should not constitute above the tip by tooth 21.
Described tooth 21 has a tip, and it constitutes by a seamed edge.This seamed edge is positioned on the circumference and for each tooth 21 and has for example length of 0.02mm.The length of this seamed edge and width can have wider size.15 inclinations constitute with descending from this seamed edge towards contact-making surface in the side of described tooth 21.Constitute towards contact 11 centroclinal continuous respectively recessed arching ground, side.
Two coefficient spring contacts are opposed in the contact making device shown in Fig. 2 and 3.Two leaf springs 23 respectively support a contact.In the middle of two contacts only one be the contact 11 that has the zigzag crown according to of the present invention.Another contact 25 constitutes glossily.Crown on second contact 25 will increase the danger of two contact card ribs.
Contact making device according to these two accompanying drawings can be a normally opened contact or a normally-closed contact.Two contacts produce tangential motions (cleaning motion with water) each other when two contacts 11 and 25 collide mutually, and contact position is mechanically cleared up.If collide mutually two contacts, then the zigzag crown leans against by two tooth tops on the contact-making surface plane or slightly microprotrusion arching of smooth contact 25.These teeth 21 lean with very little area, even also can set up high unit plane pressure (a high roof pressure power) for small spring roof pressure power thus.
Shown in Figure 4 and 5, transfer contact is furnished with according to contact of the present invention.Although in fact the structure that the contact that can make in theory is furnished with the zigzag crown gets rid of this structure.Therefore the contact of punching out is made of smooth contact 25 in these accompanying drawings.Two static contact springs are furnished with one respectively according to contact of the present invention in Fig. 4.Constitute a contact spring that has the activity of two contacts 31 betwixt.This pair contact 31 preprocessing on a side is come out and is made in the opposite side upper punch.In the middle of in Fig. 5 and movable contact spring constitutes by two contacts equally.But this contact is furnished with a zigzag crown 17 on preprocessing one side.But this contact is smooth on punching out one side.The punching out contact plane or arching is the static backstop according to contact 11 of the present invention.The movable contact with zigzag crown 17 11 leans on the contact 25 of a smooth preprocessing.
In an embodiment with according to the diameter of the coefficient smooth contact of contact of the present invention obviously greater than the diameter of crown 17.But for the contact position this point that is fit to is unnecessary.Unique condition is that the tooth of described zigzag crown is the adjacent contact of contact on an approaching smooth contact-making surface.
Has a crown 17 ' of forming by many teeth 21 ' at the contact shown in Fig. 6 to 8 11 '.This crown and contact circle spacing ground constitute.The diameter of this crown equals the diameter of rivet bar.This crown slightly larger in diameter is in half of contact diameter.
Described tooth 21 ' cusped edge ground constitutes.Described manufactured head 11 ' has the contact-making surface 15 on a plane, and tooth 21 ' is set thereon.Described tooth 21 ' high about 30 microns (15 to 60 microns, preferred 20 to 40 microns).Spacing between two teeth about 10 times to tooth depth (about 0.3mm, preferable range: 0.2 to 0.5mm).The width of crown on the crown circumferencial direction is about half (preferable range 0.1 is to 0.3mm) of spacing width between the tooth.
Interrupt the processing tooth for a contact by cold forming between tooth with annular crown.The material of crown is got into the matrix of contact and adjacent tooth the inside in interruption.Raise the edge of the contiguous tooth 21 ' that interrupts thus slightly.These edges are for the contact point of the flat contact surface of corresponding contact.
Be preferably in one unique make contact and contact supporting, be to realize interrupting being shaped in the processing step that is riveted together of the plate of the contact spring of armature contact or a fixed contact.
Because the method that constitutes contact zigzag crown in a kind of such being used for is determined the position of tooth based on contact spring or plate, therefore can save those certainly not with the coefficient tooth in corresponding contact.Therefore can abandon there constituting and interrupt, perhaps remove generally or push and remove crown.If therefore the contact according to Fig. 6 to 11 can not be arranged on the contact supporting mistakenly by preferable methods processing.For the non-rivet bar that is crushed to crown is made anodontialy.
Represent by chain-dotted line for the axis that touches first contact supporting according to Fig. 9 to 11.Only constitute two teeth 21 ' respectively in side near axis.In the time of on contact being assemblied in a contact supporting hereto embodiment only constitute 8 teeth 21 '.In the relay of assembling two the tooth 21 ' of close axis concur with corresponding contact.According to the form of corresponding contact make two teeth away from or the more close root that is assemblied in a contact on the contact spring.
For the active force that keeps a bigger lever and keep bigger being used to that contact spring is reversed thus also can assemble contact like this according to Fig. 9 to 11, the axis of contact spring is extended along dotted line.The contact that makes the most close this axis thus is provided with the relatively large distance of axis with one.Therefore when the crown contact only leans on a tooth, obtain a bigger power of reversing contact spring.
At Figure 12, contact shown in 13 and 14, it only has 8 teeth, and they are arranged on one respectively in couples near on the turning of foursquare rectangle.Also can have only four teeth, a tooth is set on each angle.
If make the contact mechanism of forming by contact and contact supporting only be used for a normally opened contact or only be used for a normally-closed contact, but be not used in the contact of two kinds of forms, then also can save above or below contact.Can use same contact mechanism with respect to an axis symmetrical structure for normally-closed contact and normally opened contact perpendicular to the contact spring axis.
Also letter illustrates in Figure 13, makes crown position pinched together can improve slightly or also can be recessed with respect to contact-making surface by the restriction of production technology in order to realize interrupting between two teeth.
In Figure 15 and two different contact pairs shown in 16.For leaning against on the corresponding contact according to the normally-closed contact of the connection of Figure 15 tooth top near the contact spring root.For leaning against on the corresponding contact according to the normally opened contact of the connection of Figure 16 tooth top away from root.This correspondence contact is microprotrusion slightly.Contact-making surface towards the arching of crown contact has the arching height in the crown radius region inside at center, it is less than the height of tooth.Tooth top is leaned against on the arching contact-making surface of corresponding contact.
The approaching curve movement in contact also is shown in Figure 16.The drive end of described contact spring excessively exerted pressure (straight arrow).That is to say that the driving gear in relay makes drive end makes two contacts contact the required roof pressure corresponding contact of roof pressure more tempestuously than being used to.At this, after two seamed edges of contact by tooth have leaned on the contact-making surface in corresponding contact, make contact spring continue crooked (circular arc arrow).Contact moves together along with the contact spring that continues bending and therefore scrapes cunning by two seamed edges that lean on the surface of corresponding contact simultaneously.Guarantee thus, scrape off the layer that may on contact, exist, separate.
Figure 17 illustrates one according to the relay with a plurality of contacts of the present invention, and the corresponding contact of one of them a zigzag crown contact and a no crown concurs.Shown relay has two normally-closed contacts 33 and four normally opened contacts 35.These relays two row ground as shown in the figure constitute or also can constitute only singlely.Have only a normally-closed contact 33 for single relay, but have 1 to 3 normally opened contact 35.Drive unit 37, armature 39 and driving gear 41 can also be seen by Figure 17,23 motions of movable contact spring can be made by means of them.
In a word, the present invention relates to a kind of contact pair of relay, it has a contact, and this contact has one and surrounds crown 17 contact-making surface 15, that protrude in contact-making surface.This crown has a seamed edge, and it disconnects on many positions, constitutes the intermediate space between tooth 21 and the tooth 21 thus.This makes crown contact 11 contact an adjacent contact smooth, no crown respectively, although small spring force also leans on the contact position of two small sizes reliably with high roof pressure power.Improve contact reliability for the dry type switch load than common crown contact thus.
Claims (14)
1. the contact making device that is used for the dry type connection of current circuit is in this contact making device
-there is one first contact (11), it has an annular crown (17),
-there is second contact (25) that concurs with first contact (11), it has the contact-making surface of a no crown,
The diameter of-described crown (17) is less than the diameter of the contact-making surface of second contact,
-one contact is arranged on the contact spring and is mobilizable, and
-be in inclination each other at two contacts of on-position (11,25),
It is characterized in that,
-described crown (17) is made of by interrupting tooth (21) separately many, and
-described contact spring (23) can constitute with reversing, at on-position at least two teeth (21) of first contact (11) is leaned on the contact-making surface of second contact (25) thus.
2. contact making device as claimed in claim 1 is characterized in that described tooth has the contact seamed edge, and its length is 0.01 to 0.7 millimeter, is preferably 0.01 to 0.2 millimeter, preferred especially 0.02 to 0.1 millimeter.
3. as each described contact making device in the above-mentioned claim, it is characterized in that the mutual spacing setting of described tooth (21) with rule.
4. as each described contact making device in the above-mentioned claim, it is characterized in that described tooth (21) is arranged on the circumference of contact (11).
5. as each described contact making device in the claim 1 to 3, it is characterized in that described tooth (21) is provided with the circle spacing ground of contact (11).
6. as each described contact making device in the above-mentioned claim, it is characterized in that described contact-making surface (15) plane earth that is surrounded by crown (17) constitutes.
7. as each described contact making device in the above-mentioned claim, it is characterized in that, described contact is a manufactured head, it has a contact that shapes (13), on its front end, have the crown (17) of a band tooth (21), and be riveted on the contact supporting by a rivet bar (19) in its back-end.
8. as each described contact making device in the above-mentioned claim, it is characterized in that described second contact (25) has a contact-making surface of arching slightly.
9. as each described contact making device in the above-mentioned claim, it is characterized in that described second contact (25) has the bigger diameter of ratio first contact (11).
As above-mentioned claim in each described contact making device, it is characterized in that described crown has a diameter, this diameter the first contact diameter 1/3rd to 2/3rds between.
11., it is characterized in that the diameter of described crown is the diameter of rivet bar to the maximum, preferably equals the diameter of rivet bar as each described contact making device in the claim 7 to 10.
12. relay, it has at least one as each described contact making device in the above-mentioned claim.
13. be used to process the method for crown contact, make the contact cold forming in the method, it is characterized in that, shaping has the contact of the crown of an annular when the contact cold forming, additionally in this annular crown, for example be shaped and interrupt, constitute tooth alternately and the interruption between the tooth thus by a wheeled drift of spoke.
14. method as claimed in claim 13 is characterized in that, the interruption between the described tooth forms crown when contact being riveted to a contact supporting the inside.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH8212005 | 2005-05-10 | ||
| CH00821/05 | 2005-05-10 | ||
| CH00455/06 | 2006-03-24 | ||
| CH4552006 | 2006-03-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1862744A true CN1862744A (en) | 2006-11-15 |
| CN1862744B CN1862744B (en) | 2011-04-13 |
Family
ID=35482240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006100817037A Active CN1862744B (en) | 2005-05-10 | 2006-05-10 | Contact arrangement for a relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1862744B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102810432A (en) * | 2012-08-21 | 2012-12-05 | 宁波福特继电器有限公司 | Contact set of relay |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4967043A (en) * | 1989-05-30 | 1990-10-30 | Eaton Corporation | Absorbing overtravel in sequential switching |
| US6847000B1 (en) * | 2003-11-14 | 2005-01-25 | Honeywell International Inc. | Negative rate snap-acting switch apparatus and method |
-
2006
- 2006-05-10 CN CN2006100817037A patent/CN1862744B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102810432A (en) * | 2012-08-21 | 2012-12-05 | 宁波福特继电器有限公司 | Contact set of relay |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1862744B (en) | 2011-04-13 |
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