CN203839296U - Limit type electromagnetic relay - Google Patents
Limit type electromagnetic relay Download PDFInfo
- Publication number
- CN203839296U CN203839296U CN201420293413.9U CN201420293413U CN203839296U CN 203839296 U CN203839296 U CN 203839296U CN 201420293413 U CN201420293413 U CN 201420293413U CN 203839296 U CN203839296 U CN 203839296U
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- Prior art keywords
- electromagnetic relay
- contact piece
- type electromagnetic
- housing
- push rod
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Abstract
The utility model discloses a limit type electromagnetic relay. The limit type electromagnetic relay comprises a housing, an iron core, a coil, a moving contact piece and a static contact piece, wherein the iron core, the coil, the moving contact piece and the static contact piece are arranged in the housing. The coil is wound on the iron core. A lever having an armature and hinged to a supporting rod that extends from the bottom of the housing is disposed right over the iron core. A push rod is connected on the moving contact piece. One end, away from the moving contact piece, of the push rod passes through the supporting rod and can slide freely inside the supporting rod. A press block in contact with the lever sleeves the push rod. A restore spring sleeves the push rod between the press block and the moving contact piece. A blocking plate used for limiting displacement of the press block extends out of the top of the housing and is positioned above the restore spring. The blocking plate is disposed between the press block and the moving contact piece, therefore, the moving contact piece and the static contact piece are effectively protected, and the service life of the electromagnetic relay is prolonged.
Description
Technical field
The utility model relates to a kind of electromagnetic relay, relates in particular to a kind of limit-type electromagnetic relay.
Background technology
Electromagnetic relay is a kind of electronic control device, and it has control system and by control system, is conventionally applied in automatic control circuit.As shown in Figure 1, electromagnetic type relay of the prior art is generally by iron core 2, coil 3, form with lever 8 of armature etc.As long as add certain voltage at coil 3 two ends, in coil 3, will flow through certain electric current, thereby produce galvanomagnetic effect, armature will be inhaled to iron core 2 under the effect of electromagnetic attracting force, thereby drive the lever 8 being hinged on support bar 7 to move, lever 8 is pushed movable contact spring 4 to static contact 5.Realized the adhesive of movable contact spring 4 and static contact 5 by the action of lever 8, but can there is certain defect, for example, when the active force of lever 8 or stroke are when excessive, movable contact spring 4 can and static contact 5 tension of fitting, cause movable contact spring 4 and static contact 5 to deform, reduced the useful life of relay.
So, be necessary to provide a kind of limit-type electromagnetic relay, there is limit function, can prevent from being applied to active force or stroke on movable contact spring excessive, to overcome above-mentioned defect.
Utility model content
The technical problem that one, will solve
The purpose of this utility model is for the existing the problems referred to above of prior art, spy provides a kind of limit-type electromagnetic relay, there is limit function, can prevent from being applied to active force or stroke on movable contact spring excessive, exist the active force or the excessive movable contact spring gross distortion that causes of stroke that are applied on movable contact spring to affect the relay defect in useful life to overcome electromagnetic relay of the prior art.
Two, technical scheme
For solving the problems of the technologies described above, the utility model provides a kind of limit-type electromagnetic relay, comprise housing (1), and be arranged on iron core (2), coil (3), movable contact spring (4) and static contact (5) in described housing (1), described coil (3) is wrapped on described iron core (2), directly over described iron core (2), be provided with armature (6) and the lever (8) hinged with extended support bar (7) bottom described housing (1), on described movable contact spring (4), be connected with push rod (9), described push rod (9) passes described support bar (7) and can be free to slide in support bar (7) away from one end of described movable contact spring (4), the upper cover of described push rod (9) has the briquetting (10) contacting with described lever (8), the upper cover of push rod (9) between described briquetting (10) and described movable contact spring (4) has back-moving spring (11), extend the baffle plate (12) for limiting described briquetting (10) displacement from the top of described housing (1), described baffle plate (12) is positioned at the top of described back-moving spring (11).
In above-mentioned limit-type electromagnetic relay, the top of described housing (1) has chute (13), by holding screw (14), described baffle plate (12) is fixedly in described chute (13).
In above-mentioned limit-type electromagnetic relay, described lever (8) comprises adsorption section (15) for connecting described armature (6) and for promoting the boosting portion (16) of described briquetting (10), the end face of described boosting portion (16) is parallel with the end face of described briquetting (10).
In above-mentioned limit-type electromagnetic relay, the angle forming between described adsorption section (15) and described boosting portion (16) is greater than 90 degree.
In above-mentioned limit-type electromagnetic relay, described support bar (7) becomes L shape.
Three, the beneficial effects of the utility model
Compared with prior art, the limit-type electromagnetic relay of one of the present utility model, between briquetting and movable contact spring, be provided with baffle plate, baffle plate can limit the stroke of briquetting, excessive movable contact spring and the static contact laminating tension of making of stroke that can prevent briquetting causes movable contact spring and static contact distortion, effectively protect movable contact spring and static contact, improved the useful life of electromagnetic relay.
Brief description of the drawings
Fig. 1 is the structural representation of the electromagnetic relay of prior art;
Fig. 2 is the structural representation of a kind of limit-type electromagnetic relay of the utility model embodiment;
Fig. 3 is the working state schematic representation of a kind of limit-type electromagnetic relay of the utility model embodiment;
Wherein, 1 is housing, and 2 is iron core, and 3 is coil, and 4 is movable contact spring, and 5 is static contact, and 6 is armature, and 7 is support bar, and 8 is lever, and 9 is push rod, and 10 is briquetting, and 11 is back-moving spring, and 12 is baffle plate, and 13 is chute, and 14 is holding screw, and 15 is adsorption section, and 16 is boosting portion.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples are used for illustrating the utility model, but can not be used for limiting scope of the present utility model.
As shown in Figure 2, the limit-type electromagnetic relay of one in the utility model embodiment, comprises housing 1, and is arranged on iron core 2, coil 3, movable contact spring 4 and static contact 5 in housing 1.Coil 3 is wrapped on iron core 2, directly over iron core 2, be provided with armature 6 and with from the hinged lever 8 of the housing 1 extended support bar 7 in bottom, preferably, 7 one-tenth L shapes of support bar.On movable contact spring 4, be connected with push rod 9, push rod 9 passes support bar 7 and can be free to slide in support bar 7 away from one end of movable contact spring 5, on push rod 9, cover has the briquetting 10 contacting with lever 8, on the push rod 9 between briquetting 10 and movable contact spring 4, cover has back-moving spring 11, as long as add certain voltage at coil 3 two ends, in coil 3, will flow through certain electric current, thereby generation galvanomagnetic effect, armature 6 will be inhaled to iron core 2 under the effect of electromagnetic attracting force, thereby drive the lever 8 being hinged on support bar 7 to move, lever 8 promotes briquetting 10 and pushes movable contact spring 4 to static contact 5, realize the joint of movable contact spring 4 and static contact 5.When after coil 3 power-off, the suction of electromagnetism also disappears thereupon, and back-moving spring 11 resets movable contact spring 4.In order to prevent that excessive movable contact spring 4 and static contact 5 tension of fitting that makes of the stroke of briquetting 10 from causing movable contact spring 4 and static contact 5 to be out of shape, affect the useful life of electromagnetic relay, extend the baffle plate 12 for limiting briquetting 10 displacements from the top of housing 1, this baffle plate 12 is positioned at the top of back-moving spring 11, specifically, have chute 13 at the top of housing 1, by holding screw 14, baffle plate 12 is fixedly in chute 13, can come the position of controllable register 12 in chute 13 according to the stroke of lever 8, with by the travel limits of briquetting 10 a reasonable value.
In preferred embodiment of the present utility model, lever 8 comprises adsorption section 15 for connecting armature 6 and for promoting the boosting portion 10 of briquetting 10, in order more effectively to utilize the thrust of lever 8 to briquetting 10, the end face of boosting portion 15 is set to parallel with the end face of briquetting 10.In addition, between adsorption section 15 and boosting portion 16, the angle of formation is greater than 90 degree, is preferably 120 degree.
As shown in Figure 3, after briquetting 10 slides into baffle plate 12 places, can be blocked, stop movable contact spring 4 to press to static contact 5, can prevent that briquetting 10 from pressing to static contact 5 by movable contact spring 4 always, effectively protect movable contact spring 4 and pressed to static contact 5.
As mentioned above, the limit-type electromagnetic relay of one of the present utility model, between briquetting and movable contact spring, be provided with baffle plate, baffle plate can limit the stroke of briquetting, excessive movable contact spring and the static contact laminating tension of making of stroke that can prevent briquetting causes movable contact spring and static contact distortion, effectively protect movable contact spring and static contact, improved the useful life of electromagnetic relay.
Below be only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (5)
1. a limit-type electromagnetic relay, it is characterized in that, comprise housing (1), and be arranged on iron core (2), coil (3), movable contact spring (4) and static contact (5) in described housing (1), described coil (3) is wrapped on described iron core (2), directly over described iron core (2), be provided with armature (6) and the lever (8) hinged with extended support bar (7) bottom described housing (1), on described movable contact spring (4), be connected with push rod (9), described push rod (9) passes described support bar (7) and can be free to slide in support bar (7) away from one end of described movable contact spring (4), the upper cover of described push rod (9) has the briquetting (10) contacting with described lever (8), the upper cover of push rod (9) between described briquetting (10) and described movable contact spring (4) has back-moving spring (11), extend the baffle plate (12) for limiting described briquetting (10) displacement from the top of described housing (1), described baffle plate (12) is positioned at the top of described back-moving spring (11).
2. limit-type electromagnetic relay according to claim 1, it is characterized in that, the top of described housing (1) has chute (13), by holding screw (14), described baffle plate (12) is fixedly in described chute (13).
3. limit-type electromagnetic relay according to claim 1, it is characterized in that, described lever (8) comprises adsorption section (15) for connecting described armature (6) and for promoting the boosting portion (16) of described briquetting (10), the end face of described boosting portion (16) is parallel with the end face of described briquetting (10).
4. limit-type electromagnetic relay according to claim 3, is characterized in that, the angle forming between described adsorption section (15) and described boosting portion (16) is greater than 90 degree.
5. according to the limit-type electromagnetic relay described in any one in claim 1 to 4, it is characterized in that, described support bar (7) becomes L shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420293413.9U CN203839296U (en) | 2014-06-03 | 2014-06-03 | Limit type electromagnetic relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420293413.9U CN203839296U (en) | 2014-06-03 | 2014-06-03 | Limit type electromagnetic relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203839296U true CN203839296U (en) | 2014-09-17 |
Family
ID=51517103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420293413.9U Expired - Fee Related CN203839296U (en) | 2014-06-03 | 2014-06-03 | Limit type electromagnetic relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203839296U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105590808A (en) * | 2016-02-29 | 2016-05-18 | 上海首泓液磁科技有限公司 | Damping relay and applications thereof |
| CN108447742A (en) * | 2018-05-15 | 2018-08-24 | 苏州胜璟电磁科技有限公司 | A kind of energy-saving type electromagnetic switch |
| CN108447740A (en) * | 2018-06-02 | 2018-08-24 | 宁波赛特勒电子有限公司 | A kind of relay |
| CN108493057A (en) * | 2018-06-02 | 2018-09-04 | 宁波赛特勒电子有限公司 | A kind of electromagnetic relay |
| CN113904078A (en) * | 2021-09-29 | 2022-01-07 | 中电科思仪科技股份有限公司 | Waveguide attenuator based on electric control and control method thereof |
-
2014
- 2014-06-03 CN CN201420293413.9U patent/CN203839296U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105590808A (en) * | 2016-02-29 | 2016-05-18 | 上海首泓液磁科技有限公司 | Damping relay and applications thereof |
| CN108447742A (en) * | 2018-05-15 | 2018-08-24 | 苏州胜璟电磁科技有限公司 | A kind of energy-saving type electromagnetic switch |
| CN108447742B (en) * | 2018-05-15 | 2024-06-07 | 水发浩海(青岛)环境有限公司 | Energy-saving electromagnetic switch |
| CN108447740A (en) * | 2018-06-02 | 2018-08-24 | 宁波赛特勒电子有限公司 | A kind of relay |
| CN108493057A (en) * | 2018-06-02 | 2018-09-04 | 宁波赛特勒电子有限公司 | A kind of electromagnetic relay |
| CN108493057B (en) * | 2018-06-02 | 2024-01-16 | 宁波赛特勒电子有限公司 | Novel electromagnetic relay |
| CN108447740B (en) * | 2018-06-02 | 2024-04-19 | 宁波赛特勒电子有限公司 | Relay |
| CN113904078A (en) * | 2021-09-29 | 2022-01-07 | 中电科思仪科技股份有限公司 | Waveguide attenuator based on electric control and control method thereof |
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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: 20140917 Termination date: 20150603 |
|
| EXPY | Termination of patent right or utility model |