CN203882900U - Electromagnetic relay - Google Patents
Electromagnetic relay Download PDFInfo
- Publication number
- CN203882900U CN203882900U CN201420225880.8U CN201420225880U CN203882900U CN 203882900 U CN203882900 U CN 203882900U CN 201420225880 U CN201420225880 U CN 201420225880U CN 203882900 U CN203882900 U CN 203882900U
- Authority
- CN
- China
- Prior art keywords
- electromagnetic relay
- movable core
- electromagnet
- iron core
- guide
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses an electromagnetic relay comprising an outer shell, wherein the bottom part of the outer shell is fixedly connected with an electromagnet, the interior of the electromagnet is provided with a fixed block and a movable iron core, the center of the fixed block is provided with a cylindrical groove, a first spring sleeves the movable iron core, a cylindrical piston is connected below the movable iron core, an insulating and retaining rack is connected above the movable iron core, the interior of the insulating and retaining rack is provided with a vertical shaft, a moving contact sheet sleeves the shaft, a second spring also sleeves the shaft, the top face of the insulating and retaining rack is provided with a guide hole, a guide shaft is arranged in the guide hole, and one end of the guide shaft is fixedly connected onto the top part of the outer shell. A plurality of buffering and damping devices are arranged in the electromagnetic relay of the utility model, impact force which is generated when the movable iron core is attracted can be effectively reduced, stable and reliable relay operation can be realized, and the relay is enabled to be small in operation noise.
Description
Technical field
The utility model relates to a kind of relay, is specifically related to a kind of electromagnetic relay.
Background technology
Use at present relay comparatively widely to comprise: housing, electromagnet coil assembly, magnetic steel component, movable contact spring assembly, static contact, stator.When work, if on coil certain voltage in addition, on coil, will pass through certain electric current, thus generation electromagnetic induction effect, armature will move to electromagnet under the attraction of magnetic force, thus the moving contact with moving armature and fixed contact adhesive.But can produce larger impulsive force in the moment of adhesive, and not only can produce larger noise, and can cause because there is this impulsive force the damage of other elements in relay, affect useful life.
Utility model content
(1) technical problem that will solve
The technical problems to be solved in the utility model is to provide a kind of simple in structure, has the electromagnetic relay of less impulsive force when electromagnetic actuation.
(2) technical scheme
For solving the problems of the technologies described above, the utility model provides a kind of electromagnetic relay, and it comprises shell, the bottom of described shell is fixedly connected with electromagnet, described electromagnet inside is provided with a fixed block, and described fixed block center is provided with cylinder shape groove, and described electromagnet inside is also provided with movable core; On described movable core, be arranged with the first spring, the below of described movable core is connected with cylindrical piston, and the top of described movable core is connected with insulation retainer, and the inside of described insulation retainer is provided with a vertical axes, on described axle, be arranged with moving contacting plate, on described axle, also cover has the second spring; The end face of described insulation retainer is provided with pilot hole, in described pilot hole, is provided with the axis of guide, and one end of the described axis of guide is fixedly connected on the top of shell.
Wherein, described cylindrical piston bottom is provided with hole, and the top in described hole is connected with a cylindrical cavity, and the surrounding of described cylindrical cavity is evenly provided with gas port.
Wherein, the slightly larger in diameter of described cylinder shape groove is in the diameter of described piston.
Wherein, on the described axis of guide, be provided with cushion pad.
Wherein, the two ends of described moving contacting plate are provided with moving contact, and the below of described moving contact is provided with fixed contact, and described fixed contact is arranged on static contact.
(3) beneficial effect
Compared with prior art, in the utility model electromagnetic relay, be provided with multiple damping devices, can effectively alleviate the impulsive force that movable core produces in the time of adhesive, relay is operated steadily reliably, and there is less operation noise.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model electromagnetic relay.
Fig. 2 is the end view of the utility model electromagnetic relay insulation retainer.
Fig. 3 is the partial enlarged drawing of the cylindrical piston of the utility model electromagnetic relay movable core below.
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.
The structure of the utility model electromagnetic relay as Figure 1-3, comprises shell 2, and the bottom of described shell 2 is fixedly connected with electromagnet 8, and this electromagnet 8 includes solenoid 802, yoke 801 and pin 803; Be provided with a fixed block 10 in described electromagnet 8 inside, described fixed block 10 centers are provided with cylinder shape groove 9, and are provided with chamfering at the opening part of described groove 9; Described electromagnet 8 inside are also provided with movable core 7; On described movable core 7, be arranged with the first spring 6, described the first spring 6 can play the effect of buffering in the time of movable core 7 adhesive, in the time of electromagnet 8 power-off, can give movable core 7 elastic force upwards, and moving contact 501 is separated with fixed contact 101; The below of described movable core 7 is connected with cylindrical piston 11, the top of described movable core 7 is connected with insulation retainer 3, the inside of described insulation retainer 3 is provided with a vertical axes 305, on described axle 305, be arranged with moving contacting plate 5, on described axle 305, also cover has the second spring 4, described the second spring 4 can, by moving contacting plate 5 flexible fastenings on insulation retainer 3, can alleviate the vibrations that adhesive produces by strain in the time of moving contact 501 and fixed contact 101 adhesive; The end face of described insulation retainer 3 is provided with pilot hole 302, in described pilot hole 302, be provided with the axis of guide 303, one end of the described axis of guide 303 is fixedly connected on the top of shell 2, described pilot hole 302 and the axis of guide 303 can ensure that movable core 7 and insulation retainer 3 move upward in vertical side, effectively limited the vibrations of movable core 7 and insulation retainer 3, the reliability that improves relay is safety in utilization.
Be illustrated in figure 3 the partial enlarged drawing of the cylindrical piston 11 of movable core 7 belows, wherein cylindrical piston 11 bottoms are provided with hole 110, the top in described hole 110 is connected with a cylindrical cavity 111, and the surrounding of described cylindrical cavity 111 is evenly provided with gas port 112; Described piston 11 is matched in clearance with the groove 9 at above-mentioned fixed block 10 centers, and the slightly larger in diameter of described groove 9 is in the diameter of described piston 11; In the time that electromagnet is switched on, movable core 7 moves down under the attraction of magnetic force, in the time that one end of movable core 7 enters in groove 9, because the less air that causes in the gap between movable core 7 and groove 9 is difficult to get rid of from gap, therefore the air in groove 9 enters the hole by piston 11 110 in the cylindrical cavity 111 being communicated with it, and discharges by being evenly distributed on cavity 111 pore 112 around.Because pore 112 is less, air can not be discharged in the short time, therefore movable core 7 is had the effect of buffering, has reduced the impulsive force that movable core 7 produced in adhesive moment.
Preferably, be provided with cushion pad 304 on the axis of guide 303, described cushion pad 304 can effectively alleviate the impulsive force in the time of 3 resilience of insulation retainer, shell 2 being produced, the noise while reducing relay work.
Preferably, the two ends of moving contacting plate 5 are provided with moving contact 501, and the below of described moving contact 501 is provided with fixed contact 101, and described fixed contact 101 is arranged on static contact 1.
Compared with prior art, in the utility model electromagnetic relay, be provided with multiple damping devices, can effectively alleviate the impulsive force that movable core produces in the time of adhesive, relay is operated steadily reliably, and there is less operation noise.
These are only preferred implementation of the present utility model; should be understood 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. an electromagnetic relay, is characterized in that: comprise shell, the bottom of described shell is fixedly connected with electromagnet, and described electromagnet inside is provided with a fixed block, and described fixed block center is provided with cylinder shape groove, and described electromagnet inside is also provided with movable core; On described movable core, be arranged with the first spring, the below of described movable core is connected with cylindrical piston, and the top of described movable core is connected with insulation retainer, and the inside of described insulation retainer is provided with a vertical axes, on described axle, be arranged with moving contacting plate, on described axle, also cover has the second spring; The end face of described insulation retainer is provided with pilot hole, in described pilot hole, is provided with the axis of guide, and one end of the described axis of guide is fixedly connected on the top of shell.
2. electromagnetic relay according to claim 1, is characterized in that: described cylindrical piston bottom is provided with hole, and the top in described hole is connected with a cylindrical cavity, and the surrounding of described cylindrical cavity is evenly provided with gas port.
3. electromagnetic relay according to claim 2, is characterized in that: the slightly larger in diameter of described cylinder shape groove is in the diameter of described piston.
4. electromagnetic relay according to claim 1, is characterized in that: on the described axis of guide, be provided with cushion pad.
5. according to the electromagnetic relay described in claim 1-4 any one, it is characterized in that: the two ends of described moving contacting plate are provided with moving contact, the below of described moving contact is provided with fixed contact, and described fixed contact is arranged on static contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420225880.8U CN203882900U (en) | 2014-05-04 | 2014-05-04 | Electromagnetic relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420225880.8U CN203882900U (en) | 2014-05-04 | 2014-05-04 | Electromagnetic relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203882900U true CN203882900U (en) | 2014-10-15 |
Family
ID=51683374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420225880.8U Expired - Fee Related CN203882900U (en) | 2014-05-04 | 2014-05-04 | Electromagnetic relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203882900U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108520849A (en) * | 2018-06-02 | 2018-09-11 | 宁波赛特勒电子有限公司 | A kind of new type of relay |
| CN112640023A (en) * | 2018-09-07 | 2021-04-09 | 欧姆龙株式会社 | Electromagnetic relay |
-
2014
- 2014-05-04 CN CN201420225880.8U patent/CN203882900U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108520849A (en) * | 2018-06-02 | 2018-09-11 | 宁波赛特勒电子有限公司 | A kind of new type of relay |
| CN112640023A (en) * | 2018-09-07 | 2021-04-09 | 欧姆龙株式会社 | Electromagnetic 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: 20141015 Termination date: 20150504 |
|
| EXPY | Termination of patent right or utility model |