CN201522976U - Relay with arc quenching device - Google Patents
Relay with arc quenching device Download PDFInfo
- Publication number
- CN201522976U CN201522976U CN2009201999559U CN200920199955U CN201522976U CN 201522976 U CN201522976 U CN 201522976U CN 2009201999559 U CN2009201999559 U CN 2009201999559U CN 200920199955 U CN200920199955 U CN 200920199955U CN 201522976 U CN201522976 U CN 201522976U
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- Prior art keywords
- arc
- relay
- blow
- shell
- contact
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- Expired - Fee Related
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model relates to a relay, in particular to a relay with an arc quenching device. The utility model provides the following technical scheme: the relay with the arc quenching device comprises a base, a wiring board arranged on the base, a coil, a slide block linked with the coil and a shell buckled with the base, wherein the wiring board is provided with a fixed contact; the slide block is provided with a movable contact corresponding to the fixed contact; an arc quenching room is arranged among the shell, the movable contact and the fixed contact; the arc quenching room is internally provided with the arc quenching device of the movable contact and the fixed contact; the arc quenching device comprises at least two arc quenching grid plates; one end of each arc quenching grid plate extends to the corresponding place of the movable contact and the fixed contact; and the other end thereof is exposed out of the shell. By adopting the technical scheme, the utility model provides the relay with the arc quenching device, which can fast absorb and quench electric arc generated by the contact between the movable contact and the fixed contact in the relay, has simple structure, and can prolong the service life of the contact under the condition of heavy load.
Description
Technical field
The utility model relates to a kind of relay, particularly a kind of relay with spark blowout.
Background technology
Existing relay mainly by base, be located at base upper wiring board, coil, constitute with the slide block of coil interlock and with shell that base fastens, described terminal block is provided with fixed contact, slide block is provided with the moving contact corresponding with fixed contact, during the coil drive slide block, the moving contact on the slide block is fitted with the fixed contact formation on the terminal block or is separated.
Because moving contact can produce electric arc when contacting with fixed contact, particularly powerful relay, the electric arc that its inner moving contact is produced when contacting with fixed contact can be with contact burning, make relay normally to use or useful life extremely short, can't utilize relay to switch high power load.And this type of difficult problem, these those skilled in the art never find reasonable approach to overcome at present.
The utility model content
At the deficiency that prior art exists, the utility model provides a kind of quick absorption of electric arc that the inner dynamic and static contact of relay can be touched fashionable generation to extinguish, and simple in structure.Can under heavy load condition, prolong the relay of the band spark blowout in contact life-span.
For achieving the above object, the utility model provides following technical scheme: a kind of relay with spark blowout, include base, be located at the terminal block on the base, coil, with the slide block of coil interlock and the shell that fastens with base, described terminal block is provided with fixed contact, slide block is provided with the moving contact corresponding with fixed contact, described shell is with moving, be provided with the expulsion element between the fixed contact, be provided with moving in this expulsion element, the spark blowout of fixed contact, this spark blowout includes at least two blow-out screens, one end of each blow-out screen extends to moving, the corresponding position of fixed contact, the other end is revealed in outside the shell.
Adopt technique scheme, will between shell and the dynamic and static contact expulsion element be set, when making high power, dynamic and static contact touches to close and produces electric arc with contact burning, plays the effect of the dynamic and static contact of protection; And spark blowout is at least two blow-out screens, be provided with so simple in structure, processing and easy for installation.
The utility model further is set to: described each blow-out screen is suction arc end towards an end of dynamic and static contact, be revealed in the outer end of shell for letting out the arc end, the top of inhaling the arc end is provided with the extension bar that extends to the moving contact upper end, and the middle part of inhaling the arc end offers inhales the arc breach.
Adopt technique scheme, the suction arc end of dynamic/static contact and inhale that the arc end extends bar, inhaling the setting of arc breach can be when the work of dynamic and static contact separately and when producing electric arc, owing to inhale the effect of arc breach, make arc current produce magnetic flux path and distort in the space around, so just produce a kind of suction that electric arc is pulled to the blow-out screen, after electric arc entered the blow-out screen, it let out the arc end with regard to what the short arc that is divided into a plurality of series connection entered the blow-out screen, and reaches breath arc function; Arc blowout effect is obvious, and fast.
Wherein, the suction arc end of described each blow-out screen is a cuboid, and the extension bar of inhaling arc end top is a strip shape body, is connected by the inclined-plane between this strip shape body and the cuboid and inhales the suction arc breach offered in the middle part of the arc end for being the setting of " U " shape.The processing and the installation that make things convenient for the blow-out screen are set like this.
The utility model further is set to: described expulsion element is the placed cavity of placing for the blow-out screen that is positioned on the shell that the corresponding position of dynamic and static contact offers, be respectively equipped with some slots that supply the blow-out screen to plug on upper and lower two end faces of inboard, expulsion element, be provided with the arc extinguishing dividing plate between each slot.
Adopt technique scheme, the expulsion element is located on the shell, effectively utilized the proportional space on the shell, make the structural arrangement of relay inside and install more reasonable and compactness; Being provided with on the one hand of arc extinguishing dividing plate can be played the fixedly effect of blow-out screen, on the other hand advantage created in blow-out fast.
Below in conjunction with accompanying drawing the utility model is further described:
Description of drawings
Fig. 1 is the decomposing schematic representation of the utility model embodiment;
Fig. 2 is the structural representation of the utility model embodiment;
Fig. 3 is the schematic perspective view of blow-out screen among the utility model embodiment.
Embodiment
As Fig. 1, Fig. 2, a kind of relay shown in Figure 3 with spark blowout, include base 1, be located at the terminal block 2 on the base 1, coil 3, with the slide block 4 of coil 3 interlocks and the shell 5 that fastens with base 1, described terminal block 2 is provided with fixed contact 21, slide block 4 is provided with the moving contact 41 corresponding with fixed contact 21, be provided with expulsion element 51 between described shell and moving contact 41 and the fixed contact 21, be provided with the spark blowout 6 of moving contact 41 and fixed contact 21 in this expulsion element 51, this spark blowout 6 includes at least two blow-out screens 61, one end of each blow-out screen 61 extends to the corresponding position of moving contact 41 and fixed contact 21, and the other end is revealed in outside the shell 5.Adopt technique scheme, to between shell 5 and moving contact 41, the fixed contact 21 expulsion element 51 be set, the electric arc that makes moving contact 41, fixed contact 21 touch fashionable generation is extinguished by the spark blowout 6 in the expulsion element 51, thereby when preventing high power, moving contact 41 touches to close with fixed contact 21 and produces electric arc with contact burning, plays the effect of protection moving contact 41 and fixed contact 21; And spark blowout 6 is at least two blow-out screens 61, be provided with so simple in structure, processing and easy for installation.
In the utility model embodiment, the placed cavity that expulsion element 51 offers for the corresponding position that is positioned at moving contact 41 and fixed contact 21 on the shell 5 for 61 placements of blow-out screen, be respectively equipped with some slots 511 that supply blow-out screen 61 to plug on upper and lower two end faces of 51 inboards, expulsion element, be provided with arc extinguishing dividing plate 512 between each slot 511, the shell 5 among the utility model embodiment is provided with six slots 511.Need to prove that the number of expulsion element's 51 slots 511 can be decided according to the required design of use according to the number setting of blow-out screen 61.Described each blow-out screen 61 is suction arc end 611 towards an end of moving contact 41 and fixed contact 21, be revealed in shell 5 end outward for letting out arc end 612, the top of inhaling arc end 611 is provided with the extension bar 613 that extends to moving contact 41 upper ends, and the middle part of inhaling arc end 611 offers inhales arc breach 614; The suction arc end 611 of each blow-out screen 61 is a cuboid, and the extension bar 613 of inhaling arc end 611 tops be a strip shape body, is connected and inhales the suction arc breach 614 offered at arc end 611 middle parts for being the setting of " U " shape by inclined-plane 615 between this strip shape body and the cuboid.Need to prove, the processing and the installation that make things convenient for blow-out screen 61 are set like this, certainly, the suction arc breach 614 of inhaling arc end 611 middle parts also can be V-shaped, also is feasible.And the both sides that each blow-out screen 61 is inhaled arc ends 611 are respectively equipped with pawl 616, and pawl 616 can hook together with the both sides of shell 5 expulsion elements 51, can prevent that blow-out screen 61 is by coming off in the expulsion element 51.
Claims (6)
1. relay with spark blowout, include base, be located at terminal block on the base, coil, with the slide block of coil interlock and the shell that fastens with base, described terminal block is provided with fixed contact, slide block is provided with the moving contact corresponding with fixed contact, it is characterized in that: be provided with the expulsion element between described shell and the dynamic and static contact, be provided with the spark blowout of dynamic and static contact in this expulsion element, this spark blowout includes at least two blow-out screens, one end of each blow-out screen extends to the corresponding position of dynamic and static contact, and the other end is revealed in outside the shell.
2. the relay of band spark blowout according to claim 1, it is characterized in that: described each blow-out screen is suction arc end towards an end of dynamic and static contact, be revealed in the outer end of shell for letting out the arc end, the top of inhaling the arc end is provided with the extension bar that extends to the moving contact upper end, and the middle part of inhaling the arc end offers inhales the arc breach.
3. the relay of band spark blowout according to claim 2, it is characterized in that: the suction arc end of described each blow-out screen is a cuboid, the extension bar of inhaling arc end top is a strip shape body, is connected by the inclined-plane between this strip shape body and the cuboid and inhales the suction arc breach offered in the middle part of the arc end for being the setting of " U " shape.
4. according to the relay of claim 2 or 3 described band spark blowouts, it is characterized in that: the both sides that described each blow-out screen is inhaled the arc end are respectively equipped with pawl.
5. according to the relay of claim 1 or 2 or 3 described band spark blowouts, it is characterized in that: described expulsion element is the placed cavity of placing for the blow-out screen that is positioned on the shell that the corresponding position of dynamic and static contact offers, be respectively equipped with some slots that supply the blow-out screen to plug on upper and lower two end faces of inboard, expulsion element, be provided with the arc extinguishing dividing plate between each slot.
6. the relay of band spark blowout according to claim 4, it is characterized in that: described expulsion element is the placed cavity of placing for the blow-out screen that is positioned on the shell that the corresponding position of dynamic and static contact offers, be respectively equipped with some slots that supply the blow-out screen to plug on upper and lower two end faces of inboard, expulsion element, be provided with the arc extinguishing dividing plate between each slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201999559U CN201522976U (en) | 2009-11-12 | 2009-11-12 | Relay with arc quenching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201999559U CN201522976U (en) | 2009-11-12 | 2009-11-12 | Relay with arc quenching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201522976U true CN201522976U (en) | 2010-07-07 |
Family
ID=42509152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201999559U Expired - Fee Related CN201522976U (en) | 2009-11-12 | 2009-11-12 | Relay with arc quenching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201522976U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102509671A (en) * | 2011-10-10 | 2012-06-20 | 浙江亚洲龙继电器有限公司 | Relay with arc quenching devices |
| CN104916496A (en) * | 2015-05-20 | 2015-09-16 | 浙江天正电气股份有限公司 | Arc extinguishing component side-mount structure of contactor |
-
2009
- 2009-11-12 CN CN2009201999559U patent/CN201522976U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102509671A (en) * | 2011-10-10 | 2012-06-20 | 浙江亚洲龙继电器有限公司 | Relay with arc quenching devices |
| CN102509671B (en) * | 2011-10-10 | 2015-07-22 | 浙江亚洲龙继电器有限公司 | Relay with arc quenching devices |
| CN104916496A (en) * | 2015-05-20 | 2015-09-16 | 浙江天正电气股份有限公司 | Arc extinguishing component side-mount structure of contactor |
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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: 20100707 Termination date: 20171112 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |