CN201117573Y - Electromagnetic relay with water proof air-permeable structure - Google Patents
Electromagnetic relay with water proof air-permeable structure Download PDFInfo
- Publication number
- CN201117573Y CN201117573Y CNU2007200082914U CN200720008291U CN201117573Y CN 201117573 Y CN201117573 Y CN 201117573Y CN U2007200082914 U CNU2007200082914 U CN U2007200082914U CN 200720008291 U CN200720008291 U CN 200720008291U CN 201117573 Y CN201117573 Y CN 201117573Y
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- Prior art keywords
- waterproof
- straight hole
- electromagnetic relay
- relay
- breathable structure
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- Casings For Electric Apparatus (AREA)
Abstract
The utility model discloses an electromagnetic relay with a waterproof breathable structure which includes an outer casing that is used for accommodating a relay unit. The outer casing includes a rectangular top wall and side walls which are connected with the periphery of the top wall. One side wall of the outer casing is equipped with a breathable channel which communicates the inside with the outside of the casing. The breathable channel includes an internal orifice which is arranged on the inner surface of the side wall, the external orifice of the outer surface of the side wall and an opening channel which is arranged between the internal orifice and the external orifice. The dropping position difference is arranged between the internal orifice and the external orifice and the internal orifice is higher than the external orifice. With the structure, the electromagnetic relay can effectively discharge the inside air during the working process of the relay through the waterproof breathable structure which is arranged on the outer casing and effectively prevent liquid of drops, etc. from flowing into the relay, thereby effectively guaranteeing the electric service life of the electromagnetic relay.
Description
Technical field
The utility model relates to a kind of electromagnetic relay, particularly relates to a kind of electromagnetic relay with waterproof and breathable structure.
Background technology
Electromagnetic relay is the automatic switch element that input, output have isolation features, is widely used in numerous areas such as communication, automobile, control automatically, household electrical appliance, is one of most important control element.In existing electromagnetic relay technology, a kind of non-plastic packaging type electromagnetic relay is arranged, include shell and the relay unit that holds in the enclosure, shell is provided with common air-vent, can release relay inner because the heat that produces in gas that temperature rise produces and the contact switch load process, greatly improve the electrical endurance of relay, but incompatible moist, the occasion that water droplet is arranged of this relay with common air-vent.Also has another kind of plastic packaging type electromagnetic relay, in order to prevent that liquid such as scaling powder, water, the agent of guarantor's type from entering relay inside, cause between relay input, the output or short circuit between the contact, insulation descend, thereby relay sealed, this makes relay in the course of the work, because organic gas, heat that temperature rise causes working of plastics to volatilize can't be discharged, organic gas decomposes under arcing, separate out carbon compound, the probability thereby the increase relay breaks down reduces useful life.
The utility model content
The purpose of this utility model is to overcome the deficiency of prior art, a kind of electromagnetic relay with waterproof and breathable structure is provided, effect by waterproof and breathable structure set on its shell, can either effectively discharge the inner gas that is produced in the relay course of work, can prevent liquid inflow relay inside such as water droplet again effectively, thereby guarantee the electric useful life of electromagnetic relay effectively.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of electromagnetic relay with waterproof and breathable structure comprises the shell that is used to hold relay unit; Shell comprises the roof of rectangle and the sidewall all around that is connected with the surrounding one of roof, be provided with in the wherein side-walls of shell and can make the gas-permeable channels that is connected inside and outside the shell, this gas-permeable channels comprises the outer aperture of the inner orifice that is located at described side wall inner surfaces, described sidewall outer surface and is communicated in perforate passage between the inside and outside aperture, wherein, be provided with potential difference between inner orifice and the outer aperture, and inner orifice is higher than outer aperture.
Linearly shape is downward-sloping from inside to outside for described perforate passage.
Linearly shape is downward-sloping from inside to outside for described perforate passage, on described sidewall by the outer end of outer aperture and perforate passage thereof to half groove that has pass-out shell wall bottom.
Described perforate passage comprise second straight hole that extends internally along outward extending first straight hole of inner orifice, by outer aperture and be connected the first straight hole outer end and second straight hole the inner between the 3rd straight hole; On described sidewall by the hole wall of the outer aperture and second straight hole thereof to half groove that has pass-out shell wall bottom, described half groove leads directly in the 3rd straight hole.
Described the 3rd straight hole is parallel to the inside and outside surface of described sidewall.
The cross sectional shape of described perforate passage is circular.
The cross sectional shape of described perforate passage is square.
The cross sectional shape of described perforate passage is a triangle.
The cross sectional shape of described perforate passage is oval.
The cross sectional shape of described perforate passage is an abnormity.
A kind of electromagnetic relay of the present utility model with waterproof and breathable structure; be that the gas-permeable channels that perforate is used as the electromagnetic relay housing directly is set on the shell of electromagnetic relay; and will be set as potential difference between the inner orifice of this perforate and the outer aperture; make inner orifice be higher than outer aperture; like this; the relay gas inside just can be discharged by this perforate; and at the installation direction of relay; liquid such as water can't with over against the relay top or the direction of inclination certain angle flow into electromagnetic relay inside, thereby protected electromagnetic relay effectively.
The beneficial effects of the utility model are, owing to adopted the waterproof and breathable structure that gas-permeable channels is used as electromagnetic relay be set on the shell of electromagnetic relay, and this gas-permeable channels comprises the inner orifice that is located at described side wall inner surfaces, the outer aperture of described sidewall outer surface and be communicated in, perforate passage between the outer aperture, wherein, be provided with potential difference between inner orifice and the outer aperture, and inner orifice is higher than outer aperture, behind this set, the relay gas inside can be discharged by this gas-permeable channels, and the current (or other liquid) that can prevent certain angle enter electromagnetic relay inside, relay can be worked under wet environment, guaranteed that relay has sufficiently long electric useful life; Because linearly shape is downward-sloping from inside to outside with perforate channels designs one-tenth, makes the gas-permeable channels on the shell have advantage of simple structure, simultaneously, has also guaranteed the cleaning of relay outward appearance; Linearly shape is downward-sloping from inside to outside because with perforate channels designs one-tenth, and on described sidewall by the outer end of outer aperture and perforate passage thereof to half groove that has pass-out shell wall bottom, utilize half groove can eliminate liquid attached to the edge, hole effectively, the liquid that makes spray drop in the edge, hole pours off downwards; Because the perforate channels designs is become to comprise along outward extending first straight hole of inner orifice, second straight hole that extends internally by outer aperture and be connected the first straight hole outer end and second straight hole the inner between the 3rd straight hole, and on described sidewall by the hole wall of the outer aperture and second straight hole thereof to half groove that has pass-out shell wall bottom, described half groove leads directly in the 3rd straight hole, this perforate design that is the turning shape, make the water that the relay housing is outer, liquid such as moisture are difficult to enter relay inside more, the effect that the existing liquid that makes spray drop in the edge, hole of its half groove structure pours off downwards, and the effect of being convenient to make the 3rd straight hole is arranged.
Below in conjunction with drawings and Examples the utility model is described in further detail; But a kind of electromagnetic relay with waterproof and breathable structure of the present utility model is not limited to embodiment.
Description of drawings
Fig. 1 is embodiment one structural representation of the present utility model;
Fig. 2 is embodiment one an internal structure decomposing schematic representation of the present utility model;
Fig. 3 is the structural representation of embodiment one shell of the present utility model;
Fig. 4 is the local longitudinal sectional view of embodiment one shell of the present utility model;
Fig. 5 is the local longitudinal sectional view of embodiment two shells of the present utility model;
Fig. 6 is the local longitudinal sectional view of embodiment three shells of the present utility model.
Embodiment
Embodiment one, and is extremely shown in Figure 4 referring to Fig. 1.
Fig. 1 is the structural representation of the utility model exemplary embodiment, this electromagnetic relay includes the shell 20 that is used to hold relay unit 10, its top is provided with QC exit 30, and the bottom is provided with PCB exit 40, the gas-permeable channels 50 that is interlinked to the outside in shell 20 sides are provided with.
Fig. 2 is the relay internal structure decomposing schematic representation of the utility model exemplary embodiment, its relay unit 10 includes magnetic circuit system 11 and contact system 13, contact system 13 is installed on the framework 12, magnetic circuit system 11 also is installed on the framework 12, make magnetic circuit system 11 and contact system 13 form matching relationship, add that the shell of protection and base constitute relay integral body.
Fig. 3 is the structural representation of the shell of the utility model exemplary embodiment, shell 20 comprises the roof 21 of rectangle and the sidewall 22 all around that is connected with the surrounding one of roof, is provided with at a wherein sidewall 22 places of shell 20 and can makes the gas-permeable channels 50 that is connected inside and outside the shell.
Fig. 4 is the local longitudinal sectional view of the shell of the utility model exemplary embodiment, this gas-permeable channels 50 comprises the outer aperture 52 of the inner orifice 51 that is located at described sidewall 22 inner surfaces, described sidewall 22 outer surfaces and is communicated in perforate passage 53 between the inside and outside aperture, wherein, be provided with potential difference between inner orifice 51 and the outer aperture 52, and inner orifice 51 is higher than outer aperture 52.
Wherein, linearly shape is downward-sloping from inside to outside for perforate passage 53; The cross sectional shape of perforate passage 53 is square, and the shape in inner orifice 51, outer aperture 52 is identical with the cross sectional shape of perforate passage 53.Certainly, the cross sectional shape of perforate passage also can for circle, triangle, ellipse and other be as shapes such as abnormity.
A kind of electromagnetic relay of the present utility model with waterproof and breathable structure, be that the gas-permeable channels 50 that perforate is used as the electromagnetic relay housing directly is set on the shell of electromagnetic relay, and will be set as potential difference between the inner orifice 51 of this perforate and the outer aperture 52, make inner orifice 51 be higher than outer aperture 52, and the perforate passage 53 between inner orifice 51 and the outer aperture 52 linearly shape is downward-sloping from inside to outside.Utilize this waterproof and breathable structure, can discharge outside (shown in a part of arrow among Fig. 4) by the gas discharge outlet of perforate, improve the electric useful life and the contact reliability of electromagnetic relay effectively at the inner gas that produces of electromagnetic relay, heat.And the liquid such as water of electromagnetic relay outside are to flow into inner (shown in another part arrow among Fig. 4) by this perforate, thereby have protected electromagnetic relay effectively at certain angle.Linearly shape is downward-sloping owing to perforate passage 53 is designed to from inside to outside, makes the gas-permeable channels 50 on the shell 20 have advantage of simple structure, simultaneously, has also guaranteed the cleaning of relay outward appearance.
Embodiment two; referring to shown in Figure 5; a kind of electromagnetic relay of the present utility model with waterproof and breathable structure; be with the difference of embodiment one; on described sidewall 22 by the outer end of outer aperture 52 and perforate passage 53 thereof to half groove 60 that has pass-out shell wall bottom; because perforate passage 53 also is that linearly shape is downward-sloping from inside to outside; therefore utilize this waterproof and breathable structure; at the inner gas that produces of electromagnetic relay; heat can be discharged outside (shown in a part of arrow among the figure) by the gas discharge outlet of perforate; simultaneously; it can guarantee that also the liquid such as water of relay outside are under certain angle; can't go into inside (shown in another part arrow among the figure) by this orifice flow, thereby protect electromagnetic relay effectively.Linearly shape is downward-sloping owing to perforate passage 53 is designed to from inside to outside, and on described sidewall 22 by the outer end of outer aperture 52 and perforate passage 53 thereof to half groove 60 that has pass-out shell wall bottom, utilize half groove 60 can eliminate liquid attached to the edge, hole effectively, the liquid that makes spray drop in the edge, hole pours off downwards.
Embodiment three, referring to shown in Figure 6, a kind of electromagnetic relay of the present utility model with waterproof and breathable structure, be with the difference of embodiment one, perforate passage 53 comprise second straight hole 532 that extends internally along inner orifice 51 outward extending first straight holes 531, by outer aperture 52 and be connected first straight hole, 531 outer ends and second straight hole, 532 the inners between the 3rd straight hole 533; On described sidewall 22 by the hole wall of the outer aperture 52 and second straight hole 532 thereof to half groove 60 that has pass-out shell wall bottom, described half groove 60 leads directly in the 3rd straight hole 533.
Wherein, the 3rd straight hole 533 is parallel to the inside and outside surface of described sidewall 22.
Because perforate passage 53 is designed to comprise along outward extending first straight hole 531 of inner orifice, second straight hole 532 that extends internally by outer aperture and be connected the first straight hole outer end and second straight hole the inner between the 3rd straight hole 533, and on described sidewall by the hole wall of the outer aperture 52 and second straight hole 532 thereof to half groove 60 that has pass-out shell wall bottom, described half groove 60 leads directly in the 3rd straight hole 533, this perforate design that is the turning shape, make the inner gas that produces of electromagnetic relay, heat can be discharged outside (shown in a part of arrow among the figure) by the gas discharge outlet of perforate, and the outer water of relay housing, liquid such as moisture are difficult to enter relay inside (shown in another part arrow among the figure) more, the effect that the existing liquid that makes spray drop in the edge, hole of its half groove structure pours off downwards, and the effect of being convenient to make the 3rd straight hole 533 is arranged.
The foregoing description only is used for further specifying a kind of electromagnetic relay with waterproof and breathable structure of the present utility model; but the utility model is not limited to embodiment; every foundation technical spirit of the present utility model all falls in the protection range of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.
Claims (9)
1. the electromagnetic relay with waterproof and breathable structure comprises the shell that is used to hold relay unit; Shell comprises the roof of rectangle and the sidewall all around that is connected with the surrounding one of roof, be provided with in the wherein side-walls of shell and can make the gas-permeable channels that is connected inside and outside the shell, it is characterized in that: this gas-permeable channels comprises the outer aperture of the inner orifice that is located at described side wall inner surfaces, described sidewall outer surface and is communicated in perforate passage between the inside and outside aperture, wherein, be provided with potential difference between inner orifice and the outer aperture, and inner orifice is higher than outer aperture.
2. a kind of electromagnetic relay with waterproof and breathable structure according to claim 1 is characterized in that: linearly shape is downward-sloping from inside to outside for described perforate passage.
3. a kind of electromagnetic relay according to claim 1 with waterproof and breathable structure, it is characterized in that: linearly shape is downward-sloping from inside to outside for described perforate passage, on described sidewall by the outer end of outer aperture and perforate passage thereof to half groove that has pass-out shell wall bottom.
4. a kind of electromagnetic relay with waterproof and breathable structure according to claim 1 is characterized in that: described perforate passage comprise second straight hole that extends internally along outward extending first straight hole of inner orifice, by outer aperture and be connected the first straight hole outer end and second straight hole the inner between the 3rd straight hole; On described sidewall by the hole wall of the outer aperture and second straight hole thereof to half groove that has pass-out shell wall bottom, described half groove leads directly in the 3rd straight hole.
5. a kind of electromagnetic relay with waterproof and breathable structure according to claim 4 is characterized in that: described the 3rd straight hole is parallel to the inside and outside surface of described sidewall.
6. according to claim 1 or 2 or 3 or 4 described a kind of electromagnetic relays with waterproof and breathable structure, it is characterized in that: the cross sectional shape of described perforate passage is for circular.
7. according to claim 1 or 2 or 3 or 4 described a kind of electromagnetic relays with waterproof and breathable structure, it is characterized in that: the cross sectional shape of described perforate passage is square.
8. according to claim 1 or 2 or 3 or 4 described a kind of electromagnetic relays with waterproof and breathable structure, it is characterized in that: the cross sectional shape of described perforate passage is a triangle.
9. according to claim 1 or 2 or 3 or 4 described a kind of electromagnetic relays with waterproof and breathable structure, it is characterized in that: the cross sectional shape of described perforate passage is for oval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200082914U CN201117573Y (en) | 2007-09-18 | 2007-09-18 | Electromagnetic relay with water proof air-permeable structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200082914U CN201117573Y (en) | 2007-09-18 | 2007-09-18 | Electromagnetic relay with water proof air-permeable structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201117573Y true CN201117573Y (en) | 2008-09-17 |
Family
ID=39992154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200082914U Expired - Lifetime CN201117573Y (en) | 2007-09-18 | 2007-09-18 | Electromagnetic relay with water proof air-permeable structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201117573Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102983042A (en) * | 2012-10-29 | 2013-03-20 | 厦门宏发电声股份有限公司 | Electromagnetic relay capable of reducing foreign matter contamination |
| CN109585225A (en) * | 2017-09-29 | 2019-04-05 | 泰科电子机电元件有限公司 | The sealing shell of electric device and the sealed relay for using sealing shell |
| CN109647843A (en) * | 2018-12-07 | 2019-04-19 | 彩虹（合肥）液晶玻璃有限公司 | A kind of photoelectric sensor acid & alkali liquid protection box |
| CN110544600A (en) * | 2019-07-25 | 2019-12-06 | 漳州宏发电声有限公司 | Waterproof ventilative shell and relay |
-
2007
- 2007-09-18 CN CNU2007200082914U patent/CN201117573Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102983042A (en) * | 2012-10-29 | 2013-03-20 | 厦门宏发电声股份有限公司 | Electromagnetic relay capable of reducing foreign matter contamination |
| CN102983042B (en) * | 2012-10-29 | 2015-07-08 | 厦门宏发电声股份有限公司 | Electromagnetic relay capable of reducing foreign matter contamination |
| CN109585225A (en) * | 2017-09-29 | 2019-04-05 | 泰科电子机电元件有限公司 | The sealing shell of electric device and the sealed relay for using sealing shell |
| CN109647843A (en) * | 2018-12-07 | 2019-04-19 | 彩虹（合肥）液晶玻璃有限公司 | A kind of photoelectric sensor acid & alkali liquid protection box |
| CN110544600A (en) * | 2019-07-25 | 2019-12-06 | 漳州宏发电声有限公司 | Waterproof ventilative shell and relay |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 361021 Fujian Province, Xiamen city Jimei North Industrial Zone sun ban Road No. 91-101 Patentee after: Xiamen Hongfa Electroacoustic Co., Ltd. Address before: 361021 Fujian Province, Xiamen city Jimei North Industrial Zone sun ban Road No. 91-101 Patentee before: Hongfa Electroacoustic Co., Ltd, Xiamen |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080917 |
|
| CX01 | Expiry of patent term |