CN203536314U - Magnetic latching relay capable of effectively preventing arc discharge - Google Patents
Magnetic latching relay capable of effectively preventing arc discharge Download PDFInfo
- Publication number
- CN203536314U CN203536314U CN201320633055.7U CN201320633055U CN203536314U CN 203536314 U CN203536314 U CN 203536314U CN 201320633055 U CN201320633055 U CN 201320633055U CN 203536314 U CN203536314 U CN 203536314U
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- CN
- China
- Prior art keywords
- auxiliary power
- contact bridge
- power spring
- latching relay
- magnetic latching
- 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.)
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Abstract
The utility model discloses a magnetic latching relay capable of effectively preventing arc discharge. The magnetic latching relay comprises a linearly moved actuator assembly, a contact bridge, a first auxiliary force spring and a second auxiliary force spring, the first auxiliary force spring is installed at a position where auxiliary force can be supplied to prompt the contact bridge to break away from stationary contacts rapidly the instant the contact bridge is out of contact with the stationary contacts directly opposite to the contact bridge, and the second auxiliary force spring is installed at a position where auxiliary force can be supplied to prompt the contact bridge to contact with the stationary contacts more reliably the instant the contact bridge is contacted with the stationary contacts directly opposite to the contact bridge.
Description
[technical field]
The utility model relates to magnetic latching relay technical field, or rather, relates to a kind of magnetic latching relay that can effectively prevent arcing.
[background technology]
When the charged separation in two contacts of connector, as long as voltage is greater than 10-20V in circuit, electric current is greater than 80-100mA, and dynamic and static contact members just may occur electric arc, though now contact separates, but electric current continues circulation by the electric arc between contact.Electric arc is the free gas of high temperature high conductivity, and it not only has very large destruction to contact, also may cause serious injury to the person of its periphery or equipment simultaneously, even causes the serious disasters such as fire.
Magnetic latching relay is that a kind of closure or the off-state magnetic force that only permanent magnet produces in coil magnetic circuit system keep, and the mutual conversion between closure and off-state only depends on the electric control device that causes armature component motion after the forward of certain width or reverse impulse voltage drive coil magnetic circuit system coil and then complete reed osculating element open and close.General tens amperes to 100 amperes of the operating current of magnetic latching relay use occasion is even higher.And at closing of circuit with between disconnecting, switch continually in the magnetic latching relay course of work, therefore often can there is arcing problem, especially large current work occasion.It is that the contact head of relay is burned that the generation of arcing the most directly affects, and whole relay cannot normally be worked.
[utility model content]
The technical problem that the utility model solves is to overcome the problem that prior art exists, and provides a kind of simple in structure, can effectively prevent the magnetic latching relay of arcing.
The utility model is achieved through the following technical solutions: a kind of magnetic latching relay that can effectively prevent arcing, the actuator that comprises a linear movement, contact bridge, the first auxiliary power spring and the second auxiliary power spring, described the first auxiliary power spring fitting disengages moment at described contact bridge with the direct relative fixed contact of a pair of and described contact bridge and can impel described contact bridge to depart from fixed contact fast and position that auxiliary power is provided, described the second auxiliary power spring fitting described contact bridge with a pair of and described contact bridge directly relative fixed contact after contacting, can impel described contact bridge more reliably to contact with fixed contact and the position of auxiliary power is provided.
Further, described the first auxiliary power spring is fixed on the position relative with the described actuator direction of motion, and described second auxiliary power spring one end is arranged on described actuator, and the other end is arranged on described contact bridge and fixes.
Further, described actuator comprises actuator frame, and described second auxiliary power spring one end is arranged in described actuator frame, and described contact bridge moves with described actuator.
Further, when described magnetic latching relay is during in closure state, described first, second auxiliary power spring is all compressed.
Further, described first auxiliary power spring one end is fixed on the housing of described magnetic latching relay, and the other end is over against described actuator.
Further, described the first auxiliary power spring is connected with described actuator over against one end of described actuator.
Further, described the first auxiliary power spring is helical spring or elastic spring.
Further, described the second auxiliary power spring is helical spring.
Further, described the second auxiliary power spring is fixedly connected on the centre position of described contact bridge.
Compared with prior art, the utility model is by arranging first, the second auxiliary power spring, and described the first auxiliary power spring fitting is disengaged to moment at described contact bridge and a pair of directly relative fixed contact can impel described contact bridge to depart from fixed contact fast and position that auxiliary power is provided, described the second auxiliary power spring fitting can impel described contact bridge more reliably to contact with fixed contact after directly contacting with respect to the quiet contact point of described contact bridge and the position of auxiliary power is provided with a pair of at described contact bridge, when the moment that magnetic latching relay disconnects, magnetic driven unit drive actuator assembly is toward motion in the other direction, the first auxiliary power spring discharges elastic potential energy and promotes actuator toward accelerated motion in the other direction, the second auxiliary power spring also discharges elastic potential energy promotion actuator toward accelerated motion in the other direction simultaneously, the active force of the two forms stack, actuator drives contact bridge separated with quiet contact point fast, thereby can effectively prevent the generation of arcing problem.
[accompanying drawing explanation]
Fig. 1 is the structural representation of a kind of magnetic latching relay that can effectively prevent arcing of the utility model under off-state.
Fig. 2 is the structural representation of a kind of magnetic latching relay that can effectively prevent arcing of the utility model under closure state.
Fig. 3 is the perspective exploded view of magnetic driven unit in the utility model.
Fig. 4 is schematic diagram after actuator in the utility model, contact bridge and the second auxiliary power spring assembling.
Fig. 5 is the perspective exploded view of Fig. 4.
Fig. 6 is the schematic diagram of the combinations such as the static magnetic conductor assembly of a kind of E shape of the utility model and actuator.
Fig. 7 is the schematic diagram of the combinations such as the static magnetic conductor assembly of another kind of E shape and actuator.
Fig. 8 is the operation principle schematic diagram of magnetic relay while adopting single the first auxiliary power spring.
Fig. 9 is the operation principle schematic diagram of magnetic relay while adopting two the first auxiliary power spring.
Figure 10 is work schematic diagram of the present utility model.
[embodiment]
Refer to Fig. 1 and Fig. 2, a kind of magnetic latching relay that can effectively prevent arcing of the utility model, comprises lower house 1, magnetic driven unit 2, actuator 3, the auxiliary power spring 5 of contact bridge 4, first and the second auxiliary power spring 6; The first described auxiliary power spring 5 can adopt helical spring or elastic spring, and described the second auxiliary power spring 6 adopts helical spring, and in the present embodiment, the two all adopts helical spring; Described magnetic drives module 2 drive actuator assemblies 3 to do linear movement.Described the first auxiliary power spring 5 be arranged on described contact bridge 4 with a pair of and described contact bridge 4 directly relative fixed contacts 8 disengage moment and can impel described contact bridge 4 disengaging the fixed contact 8 and position of auxiliary power is provided fast, such as being fixed on the position relative with described actuator 3 directions of motion by described in described the first auxiliary power spring 5, in the present embodiment, described first auxiliary power spring 5 one end are fixed on the housing 1 of described magnetic latching relay, and the other end is over against described actuator 3 or directly in described actuator 3, be connected.
See also Fig. 3 to Fig. 8, described magnetic driven unit 2 comprises that one is wound with coil pipe 21 and the static magnetic conductor assembly 22 of an E shape of magnet exciting coil 211 on it, described static magnetic conductor assembly 22 comprises through the public contact portion 221 of described coil pipe cavity and is arranged in described coil pipe 21 outsides and first, second contact portion 222,223 that described public contact portion 221 be arranged in parallel, described static magnetic conductor assembly 22 by two and together and the identical U-shaped magnetic conductor 220 of structure form or the structure 22 ' that is formed in one.Described actuator 3 comprises movable magnetic conductor component framework 30, armature component 31 and permanent magnet 32, described actuator framework 30 comprises that a frame base 300 for fixed armature assembly 31 and permanent magnet 32 and is for the cavity 301 of contact bridge assembly 4 is installed, and described frame base 300 and cavity 301 are arranged side by side along movable magnetic conductor component framework 300 length directions.Described armature component 31 comprise all roughly take the shape of the letter U first, the second armature 311, 312, described first, the second armature 311, 312 parallel settings, described permanent magnet 32 is clipped in first, the second armature 311, between 312, locate public contact portion 21 that described actuator 3 makes described magnetic driven unit 2 between the first armature 311 and the second armature 312 and described magnetic driven unit 2 first, the second contact portion 222, 223 cover and face toward described first, the second armature 311, 312, mobile transposition in the different pole-faces that the armature component 31 of described actuator 3 contacts at described magnetic driven unit 2 with the movement of actuator 3.
See also shown in Figure 10, described the second auxiliary power spring 6 is arranged on described contact bridge 4 directly can impel described contact bridge 4 and fixed contact 8 reliable contact and the position of auxiliary power is provided more after relative fixed contact 8 contacts with a pair of and described contact bridge 4, such as described second auxiliary power spring 6 one end are arranged on described movable magnetic conductor component framework 30, in the present embodiment, described second auxiliary power spring 6 one end are arranged on the side 302 that described frame base 300 forms cavity 301, the other end is arranged on described contact bridge 4 and is fixedly connected with, preferably, described the second auxiliary power spring 6 is arranged on the centre position of described contact bridge 4, described the second auxiliary power spring 6 can be directly installed on described contact bridge 4, also can between contact bridge 4 and the second auxiliary power spring 6, insulating mounting part 7 be set, make insulating mounting between described contact bridge 31 and regulating spring, described contact bridge 4 is made by conductive sheet, comprise stretch out described cavity 301 both sides for a pair of directly with respect to quiet contact point 8 contacts of described contact bridge 4 or separated moving contact site 41 and for being connected the connecting portion 42 of two moving contact sites 41, described the second auxiliary power spring 6 is installed on the connecting portion 42 of described contact bridge 4.Described contact bridge 4 can be at movable magnetic conductor component framework 30 length directions in the interior edge of described cavity 301 back and forth movement within the specific limits.When described magnetic driven unit 2 drives described actuator 3 motions that described contact bridge 4 is contacted with a pair of direct quiet contact point 8 with respect to described contact bridge 4, the distance S2 that described actuator 3 moves be greater than magnetic latching relay when off-state described in the distance S1 of contact bridge 4 foremost and between described quiet contact point 8.Now, described contact bridge 4 contacts with described quiet contact point 8, and described the second compressed distortion of auxiliary power spring 6 produce certain auxiliary power, has increased the contact force between contact bridge 321 and quiet contact point 8, thereby has improved the reliability of relay.
When described magnetic latching relay is during in closure state, described the first auxiliary power spring 5 is also compressed, and now the first auxiliary power spring 5 distortion produce the auxiliary power of the one and second auxiliary power spring 6 opposite directions.When the moment that magnetic latching relay disconnects, magnetic driven unit 2 drive actuator assemblies 3 are toward motion in the other direction, now the second auxiliary power spring 6 release elastic potential energys impel contact bridge 4 to leave fast quiet contact point 8, the first auxiliary power spring 5 also discharges elastic potential energy promotion actuator 3 toward motion in the other direction simultaneously, the two forms stack, thereby make contact bridge 4 separated with quiet contact point 8 fast, thereby can effectively prevent the generation of arcing problem.
Refer to shown in Fig. 9, the first auxiliary power spring 5 is two in the figure, is arranged in parallel at the position relative with described actuator 3 directions of motion.
More than describing is only embodiment of the present utility model, forgives and can understand, and is not departing under the prerequisite of the utility model design, within all should being included in technical conceive of the present utility model to simple modification of the present utility model and replacement.
Claims (9)
1. the magnetic latching relay that can effectively prevent arcing, the actuator and the contact bridge that comprise a linear movement, it is characterized in that: also comprise the first auxiliary power spring and the second auxiliary power spring, described the first auxiliary power spring fitting disengages moment at described contact bridge with the direct relative fixed contact of a pair of and described contact bridge and can impel described contact bridge to depart from fixed contact fast and position that auxiliary power is provided; Described the second auxiliary power spring fitting described contact bridge with a pair of and described contact bridge directly relative fixed contact after contacting, can impel described contact bridge more reliably to contact with fixed contact and the position of auxiliary power is provided.
2. the magnetic latching relay that can effectively prevent arcing as claimed in claim 1, it is characterized in that: described the first auxiliary power spring is fixed on the position relative with the described actuator direction of motion, described second auxiliary power spring one end is arranged on described actuator, and the other end is arranged on described contact bridge and fixes.
3. the magnetic latching relay that can effectively prevent arcing as claimed in claim 2, it is characterized in that: described actuator comprises actuator frame, described second auxiliary power spring one end is arranged in described actuator frame, and described contact bridge moves with described actuator.
4. the magnetic latching relay that can effectively prevent arcing as described in any one in claim 1-3, is characterized in that: when described magnetic latching relay is during in closure state, described first, second auxiliary power spring is all compressed.
5. the magnetic latching relay that can effectively prevent arcing as claimed in claim 4, is characterized in that: described first auxiliary power spring one end is fixed on the housing of described magnetic latching relay, and the other end is over against described actuator.
6. the magnetic latching relay that can effectively prevent arcing as claimed in claim 5, is characterized in that: described the first auxiliary power spring is connected with described actuator over against one end of described actuator.
7. the magnetic latching relay that can effectively prevent arcing as claimed in claim 1, is characterized in that: described the first auxiliary power spring is helical spring or elastic spring.
8. the magnetic latching relay that can effectively prevent arcing as claimed in claim 1, is characterized in that: described the second auxiliary power spring is helical spring.
9. the magnetic latching relay that can effectively prevent arcing as claimed in claim 1, is characterized in that: described the second auxiliary power spring fitting is in the centre position of described contact bridge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320633055.7U CN203536314U (en) | 2013-10-14 | 2013-10-14 | Magnetic latching relay capable of effectively preventing arc discharge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320633055.7U CN203536314U (en) | 2013-10-14 | 2013-10-14 | Magnetic latching relay capable of effectively preventing arc discharge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203536314U true CN203536314U (en) | 2014-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320633055.7U Expired - Fee Related CN203536314U (en) | 2013-10-14 | 2013-10-14 | Magnetic latching relay capable of effectively preventing arc discharge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203536314U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112103140A (en) * | 2019-09-29 | 2020-12-18 | 行驱电气（上海）有限公司 | Support piece, moving contact component, base and magnetic latching relay |
-
2013
- 2013-10-14 CN CN201320633055.7U patent/CN203536314U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112103140A (en) * | 2019-09-29 | 2020-12-18 | 行驱电气（上海）有限公司 | Support piece, moving contact component, base and magnetic latching relay |
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Legal Events
| 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: 20140409 Termination date: 20161014 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |