CN205230953U - Explosion -proof relay - Google Patents
Explosion -proof relay Download PDFInfo
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- CN205230953U CN205230953U CN201520992482.3U CN201520992482U CN205230953U CN 205230953 U CN205230953 U CN 205230953U CN 201520992482 U CN201520992482 U CN 201520992482U CN 205230953 U CN205230953 U CN 205230953U
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- foot
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- drawn forth
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Abstract
The utility model relates to an explosion -proof relay, include that shell, base, enameled wire, armature, yoke, promotion card, sound contact, the foot is drawn forth to the coil and foot, characterized by are drawn forth to the contact: faying face position between shell and the base adopts epoxy to water the flame proof seal structure who seals, constitute the airtight casing of relay, the internal enameled wire that is provided with of containment vessel, armature, the yoke, promote the card, the sound contact, the foot is drawn forth to two coils and the foot is drawn forth to four contacts, wherein, two coils are drawn forth clearance between the foot and are greater than 2.0mm, creepage distance is greater than 2.5mm, every coil is drawn forth foot and contact and is drawn forth the foot and be epoxy and water the flame proof seal structure who seals with the outside position that switches on. This relay effectively reduces the electric spark and produces the frequency and size through reasonable structural design and the reliable flame proof measure of increase, can realize automatic control at explosive gases and dust dangerous place, has widened the application range of relay from this, and fail safe nature is high moreover.
Description
Technical field
The utility model belongs to automation field, is specifically related to a kind of Explosion-Proof Relay can avoiding producing explosion hazard.
Background technology
In known technology, normally used relay, because of it, to have volume little, install simple and easy, operation strategies is wide, reliable in action, the advantages such as the life-span is long, be widely used in petrochemical industry instrument and equipment, food processing, operation of air conditioning systems, textile machine, Digit Control Machine Tool, plastics machinery, the automation control area such as pharmaceutical equipment, common relay is because lacking reliable explosion precaution to damp, the action that can disconnect because of frequent adhesive that is in operation produces electric spark, if have damp or combustible dust around, just there is potential safety hazard, and then easily cause outside danger.Therefore, common relay can not be used for because not possessing explosion prevention function the hazardous area that there is damp.
Utility model content
The purpose of this utility model is the deficiency being to overcome above-mentioned prior art, provides one to have explosion-proof seal structure, can use in the hazardous environment of flammable explosive gas and dust, and safe and reliable Explosion-Proof Relay.
Realizing the technical scheme that the purpose of this utility model takes is: this Explosion-Proof Relay comprises shell, base, enamelled wire, armature, yoke, push card, sound contact, coil leading foot and contact leading foot, it is characterized in that: the faying face position between shell and base adopts the explosion-proof seal structure of epoxy resin encapsulation, form the closed shell of relay, enamelled wire is provided with in closed shell, armature, yoke, push card, sound contact, two coil leading foots and four contact leading foots, wherein, electric clearance between two coil leading foots is greater than 2.0mm, creepage distance is greater than 2.5mm, each coil leading foot and contact leading foot and turned on outside position are the explosion-proof seal structure of epoxy resin encapsulation.
Described shell and base are polyamide resin grease article.
According to the Explosion-Proof Relay that such scheme is made, designed by Rational structure and increase reliable flame proof measure, relay entirety is made to form sealing device, do not contact with extraneous explosion gas thus avoid the generation of exploding, and effectively can reduce the electric spark generation frequency and size, can use in the hazardous environment of damp or combustible dust, widened the scope of application of relay thus, and security reliability be high.
Accompanying drawing explanation
Fig. 1 is structure chart of the present utility model.
Embodiment
Be respectively referring to the label in Fig. 1, figure: shell 1, base 2, enamelled wire 3, armature 4, yoke 5, push card 6, sound contact 7, coil leading foot 8, contact leading foot.
Explosion-Proof Relay of the present utility model, this Explosion-Proof Relay comprises shell 1, base 2, enamelled wire 3, armature 4, yoke 5, push card 6, sound contact 7, coil leading foot 8, contact leading foot 9, wherein, shell 1 and base 2 are polyamide resin grease article, therebetween faying face position adopts the explosion-proof seal structure of epoxy resin encapsulation, form the closed shell of relay, by enamelled wire 3 is housed successively in housing, armature 4, yoke 5, push card 6, sound contact 7, two coil leading foots 8 and four contact leading foots 9, electric clearance between two coil leading foots 8 is greater than 2.0mm, creepage distance is greater than 2.5mm, each coil leading foot 8 and contact leading foot 9 also adopt the explosion-proof seal structure of epoxy resin encapsulation with turned on outside position.
Explosion-Proof Relay of the present utility model is in real work, because the faying face position between shell 1 and base 2 adopts the explosion-proof seal structure of epoxy resin encapsulation, form the closed shell of relay, damp and dust cannot contact the electric elements that enclosure interior is installed, and each coil leading foot 8 and contact leading foot 9 also adopt the explosion-proof seal structure of epoxy resin encapsulation with turned on outside position, thus avoid explosion hazard.Simultaneously, the shell 1 adopting polyamide material to make and base 2, through heat resistant test: in relative humidity 90 ± 5%, temperature is put 28 days in the environment of 80 DEG C, then at room temperature leaves standstill 24 hours, then carries out low temperature resistant test, 1 day is left standstill at the temperature of-30 DEG C, distortion or damage, both do not met the heat-resisting cold-resistant requirement of explosion-proof criteria regulation, further increased again the security reliability of relay.And by rational structural design, the electric clearance between two coil leading foots 8 is greater than 2.0mm, and creepage distance is greater than 2.5mm, meets explosion--proof regulations requirement, effectively can reduces electric spark and produce the frequency and size, improve fail safe.This Explosion-Proof Relay is designed by Rational structure and increases reliable flame proof measure, relay entirety is made to form sealing device, effective reduction electric spark produces the frequency and size, can realize automatically controlling at damp and dust hazard place, widen the scope of application of relay thus, can be widely used among particular job occasion such as explosion-proof, petrochemical industry, air conditioner refrigerating, mine or harsh environments.
Claims (2)
1. an Explosion-Proof Relay, comprise shell, base, enamelled wire, armature, yoke, push card, sound contact, coil leading foot and contact leading foot, it is characterized in that: the faying face position between shell and base adopts the explosion-proof seal structure of epoxy resin encapsulation, form the closed shell of relay, enamelled wire is provided with in closed shell, armature, yoke, push card, sound contact, two coil leading foots and four contact leading foots, wherein, electric clearance between two coil leading foots is greater than 2.0mm, creepage distance is greater than 2.5mm, each coil leading foot and contact leading foot and turned on outside position are the explosion-proof seal structure of epoxy resin encapsulation.
2. a kind of Explosion-Proof Relay according to claim 1, is characterized in that: described shell and base are polyamide resin grease article.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520992482.3U CN205230953U (en) | 2015-12-04 | 2015-12-04 | Explosion -proof relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520992482.3U CN205230953U (en) | 2015-12-04 | 2015-12-04 | Explosion -proof relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205230953U true CN205230953U (en) | 2016-05-11 |
Family
ID=55905999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520992482.3U Active CN205230953U (en) | 2015-12-04 | 2015-12-04 | Explosion -proof relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205230953U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106169396A (en) * | 2016-08-03 | 2016-11-30 | 太仓美宅姬娱乐传媒有限公司 | A kind of anti-explosion is electromagnetic switch |
| CN108761158A (en) * | 2018-04-12 | 2018-11-06 | 厦门宏发电力电器有限公司 | A kind of ammeter converter |
-
2015
- 2015-12-04 CN CN201520992482.3U patent/CN205230953U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106169396A (en) * | 2016-08-03 | 2016-11-30 | 太仓美宅姬娱乐传媒有限公司 | A kind of anti-explosion is electromagnetic switch |
| CN108761158A (en) * | 2018-04-12 | 2018-11-06 | 厦门宏发电力电器有限公司 | A kind of ammeter converter |
| CN108761158B (en) * | 2018-04-12 | 2024-05-14 | 厦门宏发电力电器有限公司 | Ammeter converter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Ma Dawei Inventor after: Liu Sijing Inventor after: Zhou Guo Inventor after: Zong Rongzhen Inventor before: Ma Dawei Inventor before: Liu Sijing Inventor before: Zhou Guo Inventor before: Zong Rongzhen |
|
| CB03 | Change of inventor or designer information | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 473000 No.1 Industrial Park, high tech Zone, Nanyang City, Henan Province Patentee after: Nanyang Zhongtian explosion proof Electric Co.,Ltd. Patentee after: NANYANG EXPLOSION PROTECTED ELECTRICAL APPARATUS RESEARCH INSTITUTE Co.,Ltd. Address before: 473000 No.1 Industrial Park, high tech Zone, Nanyang City, Henan Province Patentee before: NANYANG ZHONGTIAN EXPLOSION-PROOF ELECTRIC Co.,Ltd. Patentee before: NANYANG EXPLOSION PROTECTED ELECTRICAL APPARATUS RESEARCH INSTITUTE Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |