CN102983042A - Electromagnetic relay capable of reducing foreign matter contamination - Google Patents
Electromagnetic relay capable of reducing foreign matter contamination Download PDFInfo
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- CN102983042A CN102983042A CN2012104298044A CN201210429804A CN102983042A CN 102983042 A CN102983042 A CN 102983042A CN 2012104298044 A CN2012104298044 A CN 2012104298044A CN 201210429804 A CN201210429804 A CN 201210429804A CN 102983042 A CN102983042 A CN 102983042A
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Abstract
The invention discloses an electromagnetic relay capable of reducing foreign matter contamination. The electromagnetic relay capable of reducing the foreign matter contamination comprises a relay main body part and a shell. The shell is covered outside the relay main body part. The relay main body part comprises a movable contact and a stationary contact which are matched. An air hole capable of communicating air inside and outside the shell is formed in the shell. A raised boss is arranged around the periphery of the air hole and on the inner side of the shell, and a blocking piece is covered on the boss to block the air hole from communicating the air inside and outside the shell. A through groove is arranged in one section of the boss so that the air hole can communicate the air inside and outside the door through the through groove, and the through groove is arranged at the position of the boss enabling flowing air not be directly toward the movable contact and the stationary contact. According to the structure, dust, water vapor and the like entering the inside of the relay from the air hole can be prevented from directly falling to the surfaces of the movable contact and the stationary contact, and therefore electrical reliability of the relay is improved. Besides, positioning and supporting between the shell and the relay main body are enhanced, and therefore compressive strength of the shell of the relay is improved.
Description
Technical field
The present invention relates to a kind of electromagnetic relay, particularly relate to and a kind ofly can reduce the electromagnetic relay that foreign pollutes dynamic and static contact by air-vent.
Background technology
Existing non-plastic package type electromagnetic relay is electromagnetic relay, all leave air-vent on its shell, be used for linking up the inside and outside atmosphere of relay, especially when the dynamic and static contact of relay switches on continuously, the air themperature of relay inside can rise, and this moment, air-vent can make the relay inner air and outer air exchange, and avoided the relay Inside Air Temperature too high, and in time discharge the inner because dynamic and static contact of the relay pernicious gas of the reduction relay performance that produces of switching on, thereby guarantee relay performance.
Yet, the air-vent of relay is inside and outside linking up relay in the atmosphere, outside dust, steam etc. also are easy to enter relay inside by its air-vent, especially when dust, steam etc. directly drops on the dynamic and static contact of relay, electric property that especially can the grievous injury relay, therefore, how to alleviate from the relay air-vent and enter the dust, steam etc. of relay inside to the infringement of relay performance, guarantee the cleanliness factor of the dynamic and static contact surface of relay, thereby guarantee the properties of product of relay, always be the difficult problem of relay manufacturer.
And, existing relay, because compact conformation, the relay inner space is narrow and small, shell often is difficult to be located preferably and support in relay, and the compression strength of a lot of customer requirement relay1 cases satisfies: the direction of packing into by shell in cover top portion evenly applies a certain size power value (such as 500N), the defective that shell does not have crackle or other that product is degenerated.Therefore, the compression strength that how to improve shell also is that numerous relay manufacturer pays close attention to.
Summary of the invention
The object of the invention is to overcome the deficiency of prior art, a kind of electromagnetic relay that can reduce foreign substance pollution is provided, by the improvement to breather hole structure, on the one hand, the dust, steam etc. that can avoid entering relay inside from air-vent are directly fallen dynamic and static contact surface, thereby promote the electric reliability of relay; On the other hand, also strengthen location and support between shell and the relay body, thereby promoted the compression strength of relay1 case.
The technical solution adopted for the present invention to solve the technical problems is: a kind of electromagnetic relay that can reduce foreign substance pollution comprises relay main part and shell; Jacket is outside the relay main part, and described relay main part includes the dynamic and static contact of matching; Described shell is provided with the air-vent that can be communicated with the shell inner air and outer air; The periphery around air-vent is inside the shell established bossed boss, and a block piece covers on the boss to intercept air-vent to the connection of shell inner air and outer air; Boss wherein one section be made as groove so that air-vent is communicated with the shell inner air and outer air by this groove, described groove is located at and makes the air that flows through not have directly position towards the boss of dynamic and static contact direction.
Described block piece and shell are structure as a whole.
Described block piece is to be located at platform in the relay main part and corresponding section, position air-vent, and when shell matched with the relay main part, the boss of shell rode in the platform on the relay main part.
Described relay main part also comprises base, matches with described base in the bottom of described shell, and described platform is located at the position corresponding with air-vent in the base, and when shell matched with base, the boss of shell rode on the platform of base.
Described air-vent is located at the roof body place of shell, and the boss of described protuberance is located at the inboard of the roof body of shell.
Described boss is the circulating type shape, and boss is trapped among central authorities with air-vent.
Described boss is half circulating type shape, and the boss of half circulating type shape is connected on the sidewall bodies place of a side of shell, and the sidewall bodies of a side of boss and shell is trapped among central authorities with air-vent jointly.
A kind of electromagnetic relay that can reduce foreign substance pollution of the present invention, to be provided with air-vent at shell, establish bossed boss around the air-vent inside the shell, boss is trapped among central authorities with air-vent, and a block piece covers on the boss to intercept air-vent to the connection of shell inner air and outer air; Be provided with groove at boss, groove is located at and makes the air that flows through not have directly to be used for being communicated with the internal environment of air-vent extraneous air and relay towards the position of the boss of dynamic and static contact direction; Block piece can be into a single integrated structure with shell, also can be the platform that relay main part or base are provided with the usefulness that matches with the boss of the air-vent periphery of shell, when being used for assembling with shell on the boss of air-vent periphery develop mutually.
When shell and relay main part (comprise electromagnet portion and pedestal part grade) assembling, the boss of the air-vent periphery on the shell is pressed on the set platform of relay main part or base, because the boss of the air-vent periphery on the shell is that air-vent is enclosed in central authorities, and groove is provided in a side of makes the air that flows through not directly towards moving, the position of the boss of fixed contact direction, therefore moving, just formed obstruct between fixed contact and the air-vent, make the dust of the outside of relay, even steam etc. pass through air-vent, it is moving also can't directly to fall relay, on the fixed contact, and can only accumulate on the regional area of the set platform of relay base.
The invention has the beneficial effects as follows: owing to adopted the periphery around air-vent inside the shell to establish bossed boss, a block piece covers on the boss to intercept air-vent to the connection of shell inner air and outer air; Boss wherein one section be made as groove, so that air-vent is communicated with the shell inner air and outer air by this groove, described groove is located at and makes the air that flows through not have directly position towards the boss of dynamic and static contact direction, like this, just between dynamic and static contact and air-vent, just formed obstruct, even dust, steam of making the outside of relay etc. pass through air-vent, also can't directly fall on the dynamic and static contact of relay, thereby reduced the pollution level that relay dynamic and static contact is subjected to extraneous foreign matter, promoted the electric reliability of relay; Owing to adopted block piece be designed to be located at platform in the relay main part and corresponding section, position air-vent, when shell matches with the relay main part, the boss of shell rides in the platform on the relay main part, or platform is located at the position corresponding with air-vent in the base, when shell matched with base, the boss of shell rode on the platform of base; This structure, because the boss of the air-vent periphery of shell is structurally comparatively solid, after itself and relay assemble, formed with the large face of the set platform of main part or base and fitted, thereby make location and support between shell and the relay body become stable and solid, thereby promoted the compression strength of relay1 case.
Below in conjunction with drawings and Examples the present invention is described in further detail; But a kind of electromagnetic relay that can reduce foreign substance pollution of the present invention is not limited to embodiment.
Description of drawings
Fig. 1 is the decomposing schematic representation of D structure of the present invention;
Fig. 2 is the structural representation of shell of the present invention;
Fig. 3 is shell of the present invention and the schematic diagram of relay main part assembling when the position;
Fig. 4 is the top plan view after the present invention assembles;
Fig. 5 is the elevation cross-sectional view after the present invention assembles.
Embodiment
Embodiment, shown in accompanying drawing, a kind of electromagnetic relay that can reduce foreign substance pollution of the present invention comprises relay main part 20 and shell 1; Shell 1 covers on outside the relay main part 20, and described relay main part 20 includes the dynamic and static contact 3 of matching; Described shell 1 is provided with the air-vent 11 that can be communicated with the shell inner air and outer air; Establishing bossed boss 12, one block pieces 21 at the periphery around air-vent of shell 1 inboard covers on the boss 12 to intercept air-vent to the connection of shell inner air and outer air; Boss 12 wherein one section be made as groove 13, so that air-vent is communicated with the shell inner air and outer air by this groove 13, described groove is located at and makes the air that flows through not have directly position towards the boss of dynamic and static contact direction, be located at away from a cooperatively interact side of position of dynamic and static contact 3 such as groove 13, the groove 13 of this position makes the air that flows through not directly towards dynamic and static contact direction.
In the present embodiment, block piece 21 is for being located at platform in the relay main part and corresponding section, position air-vent, and this platform 21 is provided in a side of the position corresponding with air-vent in the base 2, and when shell 1 matched with base 2, the boss 12 of shell rode on the platform 21 of base.
Certainly, block piece also can be for platform in the miscellaneous part that is located at the relay main part and corresponding section, position air-vent, and is medium such as magnetic circuit part; Block piece also can be to be structure as a whole with shell, boss.
Described air-vent 11 is located at roof body 14 places of shell 1, and the boss 12 of described protuberance is located at the inboard of the roof body 14 of shell.
Described boss 12 is half circulating type shape, and the boss 12 of half circulating type shape is connected on sidewall bodies 15 places of a side of shell, and the sidewall bodies 15 of a side of boss 12 and shell is trapped among central authorities with air-vent 11 jointly.Certainly, also can be that boss is designed to the circulating type shape, the boss of circulating type shape is trapped among central authorities with air-vent.
A kind of electromagnetic relay that can reduce foreign substance pollution of the present invention, to be provided with air-vent 11 at shell 1, establish bossed boss 12 around the air-vent inside the shell, boss 12 is trapped among central authorities with air-vent 11, and a block piece 21 covers on the boss 12 to intercept the connection of 11 pairs of shell inner air and outer air of air-vent; Be provided with groove 13 at boss 12, groove is located at and makes the air that flows through not have directly position towards the boss of dynamic and static contact direction, be used for being communicated with the internal environment of air-vent extraneous air and relay, outside air can be entered in the boss circle by air-vent 11, then by leading to outside the boss circle by groove 13 in the boss circle, the boss circle is equipped with outward in the shell 1 of each parts of relay just, like this, has just realized that outside air and enclosure interior are the circulation of relay inside; Base 2 is provided with the platform 21 of the usefulness that matches with the boss 12 of shell air-vent periphery, when being used for assembling with shell on the boss 12 of air-vent periphery develop mutually.
When shell and relay main part (comprising electromagnet portion and base portion) assembling, the boss 12 of the air-vent periphery on the shell is pressed on the set platform of base 21, because the boss 12 of the air-vent periphery on the shell is that air-vent is enclosed in central authorities, and groove 13 is provided in a side of makes the air that flows through not directly towards moving, the position of the boss of fixed contact direction, therefore moving, just formed obstruct between fixed contact 3 and the air-vent 11, make the dust of the outside of relay, even steam etc. pass through air-vent, it is moving also can't directly to fall relay, on the fixed contact 3, and can only accumulate on the regional area 211 of the set platform of relay base.
When the dust of relay outside, steam etc. enter relay when inner by air-vent 11, because the projection 12 of shell and the platform of base 21 are enclosed in central authorities with air-vent, therefore extraneous foreign matter can't directly be fallen on the dynamic and static contact 3, and can only accumulate on the regional area 211 on the base platform 21, thereby avoided the dynamic and static contact 3 of relay by from extraneous foreign substance pollution, affected the relay electric property.Because comparatively solid on projection 12 structures of the air-vent periphery of shell 1, it is pressed on the platform 21 of base after the assembling, thereby makes location and support between shell 1 and the relay body become stable and solid, has promoted the compression strength index of relay1 case.
Above-described embodiment only is used for further specifying a kind of electromagnetic relay that can reduce foreign substance pollution of the present invention; but the present invention is not limited to embodiment; every foundation technical spirit of the present invention all falls in the protection range of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment does.
Claims (7)
1. the electromagnetic relay that can reduce foreign substance pollution comprises relay main part and shell; Jacket is outside the relay main part, and described relay main part includes the dynamic and static contact of matching; Described shell is provided with the air-vent that can be communicated with the shell inner air and outer air; It is characterized in that: the periphery around air-vent is inside the shell established bossed boss, and a block piece covers on the boss to intercept air-vent to the connection of shell inner air and outer air; Boss wherein one section be made as groove so that air-vent is communicated with the shell inner air and outer air by this groove, described groove is located at and makes the air that flows through not have directly position towards the boss of dynamic and static contact direction.
2. the electromagnetic relay that can reduce foreign substance pollution according to claim 1, it is characterized in that: described block piece and shell are structure as a whole.
3. the electromagnetic relay that can reduce foreign substance pollution according to claim 1, it is characterized in that: described block piece is to be located at platform in the relay main part and corresponding section, position air-vent, when shell matched with the relay main part, the boss of shell rode in the platform on the relay main part.
4. the electromagnetic relay that can reduce foreign substance pollution according to claim 1, it is characterized in that: described relay main part also comprises base, match with described base in the bottom of described shell, described platform is located at the position corresponding with air-vent in the base, when shell matched with base, the boss of shell rode on the platform of base.
5. according to claim 1 and 2 or the 3 or 4 described electromagnetic relays that can reduce foreign substance pollution, it is characterized in that: described air-vent is located at the roof body place of shell, and the boss of described protuberance is located at the inboard of the roof body of shell.
6. the electromagnetic relay that can reduce foreign substance pollution according to claim 5, it is characterized in that: described boss is the circulating type shape, and boss is trapped among central authorities with air-vent.
7. the electromagnetic relay that can reduce foreign substance pollution according to claim 5, it is characterized in that: described boss is half circulating type shape, the boss of half circulating type shape is connected on the sidewall bodies place of a side of shell, and the sidewall bodies of a side of boss and shell is trapped among central authorities with air-vent jointly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210429804.4A CN102983042B (en) | 2012-10-29 | 2012-10-29 | Electromagnetic relay capable of reducing foreign matter contamination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210429804.4A CN102983042B (en) | 2012-10-29 | 2012-10-29 | Electromagnetic relay capable of reducing foreign matter contamination |
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| Publication Number | Publication Date |
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| CN102983042A true CN102983042A (en) | 2013-03-20 |
| CN102983042B CN102983042B (en) | 2015-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210429804.4A Active CN102983042B (en) | 2012-10-29 | 2012-10-29 | Electromagnetic relay capable of reducing foreign matter contamination |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103426687A (en) * | 2013-08-14 | 2013-12-04 | 厦门宏发电声股份有限公司 | Clapper-type electromagnetic relay |
| CN108630470A (en) * | 2018-06-15 | 2018-10-09 | 厦门宏发汽车电子有限公司 | A kind of breather hole structure and its switch of switch |
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| CN201117574Y (en) * | 2007-09-18 | 2008-09-17 | 厦门宏发电声有限公司 | Electromagnetic relay water proof air-permeable structure |
| CN201117573Y (en) * | 2007-09-18 | 2008-09-17 | 厦门宏发电声有限公司 | Electromagnetic relay with water proof air-permeable structure |
| CN201117572Y (en) * | 2007-09-18 | 2008-09-17 | 厦门宏发电声有限公司 | Electromagnetic relay water proof air-permeable structure |
| CN201397768Y (en) * | 2009-04-26 | 2010-02-03 | 宁波赛特勒电子有限公司 | Microminiature high power relay having a cover casing with a plurality of breathable vortex holes |
| CN202839466U (en) * | 2012-10-29 | 2013-03-27 | 厦门宏发电声股份有限公司 | Electromagnetic relay capable of reducing foreign matter pollution |
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2012
- 2012-10-29 CN CN201210429804.4A patent/CN102983042B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201117574Y (en) * | 2007-09-18 | 2008-09-17 | 厦门宏发电声有限公司 | Electromagnetic relay water proof air-permeable structure |
| CN201117573Y (en) * | 2007-09-18 | 2008-09-17 | 厦门宏发电声有限公司 | Electromagnetic relay with water proof air-permeable structure |
| CN201117572Y (en) * | 2007-09-18 | 2008-09-17 | 厦门宏发电声有限公司 | Electromagnetic relay water proof air-permeable structure |
| CN201397768Y (en) * | 2009-04-26 | 2010-02-03 | 宁波赛特勒电子有限公司 | Microminiature high power relay having a cover casing with a plurality of breathable vortex holes |
| CN202839466U (en) * | 2012-10-29 | 2013-03-27 | 厦门宏发电声股份有限公司 | Electromagnetic relay capable of reducing foreign matter pollution |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103426687A (en) * | 2013-08-14 | 2013-12-04 | 厦门宏发电声股份有限公司 | Clapper-type electromagnetic relay |
| CN103426687B (en) * | 2013-08-14 | 2015-10-28 | 厦门宏发电声股份有限公司 | A kind of clapper-type electromagnetic relay |
| CN108630470A (en) * | 2018-06-15 | 2018-10-09 | 厦门宏发汽车电子有限公司 | A kind of breather hole structure and its switch of switch |
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| CN102983042B (en) | 2015-07-08 |
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Effective date of registration: 20160420 Address after: 710000 Shaanxi city of Xi'an province high tech Zone Guangde Road No. 8 building two layer Patentee after: Xi'an Hongfa Electrical Appliance Co., Ltd. Address before: 361000, No. 91-101 South South Road, Jimei Industrial Zone, Xiamen, Fujian Patentee before: Xiamen Hongfa Electroacoustic Co., Ltd. |