CN113506695B - High-voltage direct-current relay with reliable sealing structure - Google Patents
High-voltage direct-current relay with reliable sealing structure Download PDFInfo
- Publication number
- CN113506695B CN113506695B CN202110581518.9A CN202110581518A CN113506695B CN 113506695 B CN113506695 B CN 113506695B CN 202110581518 A CN202110581518 A CN 202110581518A CN 113506695 B CN113506695 B CN 113506695B
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- sealing ring
- metal base
- plug
- sleeve
- air return
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/02—Bases, casings, or covers
- H01H9/04—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H45/00—Details of relays
- H01H45/02—Bases; Casings; Covers
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Gasket Seals (AREA)
Abstract
The invention discloses a high-voltage direct current relay with a reliable sealing structure, which comprises a metal base, a square ring, an output end and a rectangular upper cover, wherein the metal base is provided with an opening at the upper end and is of a rectangular structure, the output end is arranged on the metal base, the rectangular upper cover is fixed at the upper end of the metal base through screws, a sleeve is fixedly arranged at the lower end part of an inner cavity of the metal base in a square shape, an inserting cylinder is movably inserted at the upper end part of the sleeve, a plug is arranged at the lower end part of the inserting cylinder, the plug comprises a corrugated rubber plug and a cylindrical rubber plug, an air return hole is formed in the side surface of the cylindrical rubber plug, a first sealing ring and a second sealing ring are sequentially arranged on the upper end surface of the metal base from inside to outside, and an air return pipe and an air inlet pipe are respectively arranged at the lower end parts of the first sealing ring and the second sealing ring. The invention can improve the service life and the use safety of the high-voltage direct-current relay, can be realized only by air compression, does not need to save resource consumption, and improves the utilization rate of resources.
Description
Technical Field
The invention relates to the technical field of sealing of relays, in particular to a high-voltage direct-current relay with a reliable sealing structure.
Background
A high-voltage relay is an electric appliance in which a controlled amount is changed in a predetermined step in an electric output circuit when a change in an input amount (excitation amount) of a high-voltage circuit reaches a predetermined requirement. A high-voltage relay is an electronic control device having a control system (also called an input loop) and a controlled system (also called an output loop), and is generally used in an automatic control circuit. The full seal of the relay is to seal the coil and the contact in a metal cover seal or plastic cover, considering the universal applicability in various industries and natural environment throughout the country, and considering the special nature of reliable operation over time and month, the key parts of the control system must be selected from full seal type (metal cover seal or plastic seal type, metal cover seal product is superior to plastic seal product) with high insulation and strong electric resistance. Because only fully sealed relays have excellent long-term resistance to harsh environmental conditions, good electrical contact stability, reliability and stable switching load capability (not affected by external climatic environments).
The existing high-voltage relay sealing structure mostly adopts a sealing mode at the joint of the base and the shell to achieve the sealing effect of the product, and in the long-term use process, the sealing of the high-voltage direct-current relay is not firm due to the fact that the colloid is easy to crack, so that the service life and the use safety of the high-voltage direct-current relay are affected.
Disclosure of Invention
1. Technical problem to be solved
The invention aims to solve the technical problem of providing a high-voltage direct-current relay with a reliable sealing structure, which can effectively solve the problems that the sealing of the high-voltage direct-current relay is not firm, and the service life and the use safety of the high-voltage direct-current relay are affected.
2. Technical proposal
In order to solve the problems, the invention adopts the following technical scheme:
the utility model provides a high-voltage direct current relay with reliable seal structure, includes that the upper end opening sets up and the metal base of rectangle column structure, square circle, locates output on the metal base and the rectangle upper cover of fixing in metal base upper end through the screw, metal base inner chamber lower extreme is square fixed mounting has the sleeve, sleeve upper end activity is pegged graft has a cartridge, cartridge lower extreme is equipped with the jam, the jam includes ripple plug and cylindricality plug, the upper end of cylindricality plug has the ripple plug to glue, cylindricality plug side is equipped with the return air hole, metal base up end is equipped with first sealing washer and second sealing washer from interior outside in proper order, first sealing washer and second sealing washer lower extreme are equipped with muffler and intake pipe respectively.
Preferably, the first sealing ring is contacted with the second sealing ring, and the first sealing ring and the second sealing ring are square and embedded on the metal base.
Preferably, a clamping groove corresponding to the insertion barrel is formed in the right end portion of the sleeve, and a second gasket and a first gasket are respectively arranged on the side face and the bottom face of the clamping groove.
Preferably, the air return pipe and the air inlet pipe are arranged inside the metal base, and the aperture of the air return pipe is smaller than that of the air inlet pipe.
Preferably, the inserting cylinder is fixedly welded on the inner side wall of the rectangular upper cover, and the number of the inserting cylinders is corresponding to that of the sleeves.
Preferably, the inner end parts of the air return pipe and the air inlet pipe are fixedly inserted on the inserting cylinder, and the air return pipe is arranged above the air inlet pipe.
Preferably, the length of the insertion barrel is smaller than that of the sleeve, and the plug is arranged between the insertion barrel and the sleeve.
Preferably, the air return hole is communicated with the inner cavity of the cylindrical rubber plug.
Preferably, the upper ends of the first sealing ring and the second sealing ring are arranged on the outer side of the metal base.
3. Advantageous effects
(1) According to the invention, the rectangular upper cover and the metal base are installed through the arrangement of the plug tube, the sleeve, the plug, the air return tube, the air inlet tube, the first sealing ring and the second sealing ring, when the rectangular upper cover is attached to the opposite surface of the metal base, the plug tube drives the plug to be inserted into the sleeve, the air in the inner cavity of the sleeve is compressed along with the gradual reduction of the distance between the plug tube and the sleeve and enters the second sealing ring through the air inlet tube, at the moment, the volume of the second sealing ring is increased, the attachment of the second sealing ring and the rectangular upper cover is more compact, the problem that the sealing effect of the high-voltage direct current relay is poor is effectively avoided, the sealing effect of the high-voltage direct current relay is improved, when the volume of the second sealing ring is increased to a certain limit, part of air flows back, the corrugated rubber plug can enter the second sealing ring through the air return tube, if leakage occurs in the second sealing ring, the space formed by the first sealing ring, the air inlet tube, the sleeve and the air density is reduced, the corrugated rubber plug gradually recovers the initial state, the air in the first sealing ring is sucked into the inner part, the sleeve is assisted, the sealing ring is blocked in the cylindrical shape, the second sealing ring is used, the second sealing efficiency is improved, the sealing efficiency is improved, and only the air is guaranteed, and the air is used for sealing the second sealing efficiency is improved, and the sealing efficiency is realized, and only has high efficiency.
(2) According to the invention, the first gasket, the second gasket and the square ring are arranged at the contact part of the parts, so that the mechanical friction among the parts is reduced, and the abrasion loss of the parts is reduced.
Drawings
FIG. 1 is a schematic view of a front view, partially in section, of the present invention;
FIG. 2 is an enlarged schematic view of the structure of the present invention at M;
FIG. 3 is a schematic illustration of a plugging configuration of the present invention;
FIG. 4 is a schematic view of the A-direction structure of the present invention;
fig. 5 is a top view of the first seal ring and the second seal ring of the present invention.
Reference numerals: 1. a metal base; 2. an output end; 3. a rectangular upper cover; 4. square rings; 5. a sleeve; 6. a plug cylinder; 7. blocking; 71. corrugated rubber plugs; 72. a cylindrical rubber plug; 73. an air return hole; 8. a first gasket; 9. an air return pipe; 10. a first seal ring; 11. a second seal ring; 12. an air inlet pipe; 13. and a second gasket.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-5, an embodiment of the present invention is provided: the high-voltage direct current relay with reliable sealing structure comprises a metal base 1 with an opening at the upper end and a rectangular structure, a square ring 4, an output end 2 arranged on the metal base 1 and a rectangular upper cover 3 fixed at the upper end of the metal base 1 through screws, wherein a sleeve 5 is fixedly arranged at the lower end part of an inner cavity of the metal base 1 in a square shape, a gap is arranged between the sleeve 5 and the metal base 1 and a side wall, the sleeve 5 can be directly fixedly welded on the bottom surface of the inner cavity of the metal base 1, the number of the sleeve 5 is not less than 4, the sleeve 5 is uniformly arranged on the metal base 1, the connection tightness between the metal base 1 and the rectangular upper cover 3 is better, the sleeve 5 is a circular ring, the sleeve 5 is arranged to play a role of guiding the up-down movement of an inserting cylinder 6, the lower end part of the sleeve 5 is not communicated, the upper end part of the sleeve is provided with a bayonet, the inner cavity of the sleeve 5 is communicated with the inner cavity of the air inlet pipe 12, the inserting cylinder 6 consists of a solid cylinder and a strip-shaped plate, the strip-shaped plate is welded on the right side of the solid cylinder, the sleeve 5 is provided with clamping grooves larger than the strip-shaped plate in size, the side surfaces and the bottom surfaces of the clamping grooves are provided with second gaskets 13 and first gaskets 8, the first gaskets 8 and the second gaskets 13 are all flexible rubber, the first gaskets 8 and the second gaskets 13 are fixed with the sleeve 5 in a gluing way, the first gaskets 8, the second gaskets 13 and the square rings 4 are arranged, the contact part of the parts is provided with the first gaskets 8, the second gaskets 13 and the square rings 4 which are made of flexible rubber, the mechanical friction among the parts is reduced, the abrasion of the parts is reduced, the service life of the parts is prolonged, the right end part of the sleeve 5 is provided with the clamping grooves corresponding to the inserting cylinder 6, the side and bottom surfaces of the clamping groove are respectively provided with a second gasket 13 and a first gasket 8. The upper end part of the sleeve 5 is movably inserted with an inserting cylinder 6, the inserting cylinder 6 is fixedly welded on the inner side wall of the rectangular upper cover 3, and the number of the inserting cylinders 6 is corresponding to that of the sleeve 5. The length of the plug tube 6 is smaller than that of the sleeve 5, and the plug 7 is arranged between the plug tube 6 and the sleeve 5. The lower end of the insertion tube 6 is provided with a plug 7, the plug 7 is made of rubber, and the outer side wall of the plug 7 is tightly attached to the inner side wall of the sleeve 5, so that air in the sleeve 5 can be compressed when the insertion tube 6 is inserted into the sleeve 5, and the air can enter the second sealing ring 11 through the air inlet pipe 12, so that the sealing effect on the metal base 1 and the rectangular upper cover 3 is achieved.
The plug 7 comprises a corrugated rubber plug 71 and a cylindrical rubber plug 72, the upper end of the cylindrical rubber plug 72 is glued with the corrugated rubber plug 71, the side surface of the cylindrical rubber plug 72 is provided with an air return hole 73, the air return hole 73 is arranged on the upper side of the cylindrical rubber plug 72, and the air return hole 73 is communicated with the inner cavity of the cylindrical rubber plug 72. The upper end face of the metal base 1 is sequentially provided with a first sealing ring 10 and a second sealing ring 11 from inside to outside, the first sealing ring 10 is contacted with the second sealing ring 11, and the first sealing ring 10 and the second sealing ring 11 are square and embedded in the metal base 1. The upper end parts of the first sealing ring 10 and the second sealing ring 11 are arranged on the outer side of the metal base 1. The lower end parts of the first sealing ring 10 and the second sealing ring 11 are respectively provided with an air return pipe 9 and an air inlet pipe 12. The muffler 9 is "Z" font, intake pipe 12 is "L" font, sets up muffler 9 and intake pipe 12 and can play the effect of gas transmission, muffler 9 and intake pipe 12 are all located inside the metal base 1, and the aperture of muffler 9 is less than the aperture of intake pipe 12. The inner end parts of the air return pipe 9 and the air inlet pipe 12 are fixedly inserted on the inserting cylinder 6, and the air return pipe 9 is arranged above the air inlet pipe 12.
Working principle: this kind of high-voltage direct current relay with reliable seal structure, when using, connect metal base 1 and rectangle upper cover 3 through the grafting between cartridge 6 and the sleeve 5, inside will cartridge 6 inserts sleeve 5, along with cartridge 6 and sleeve 5's interval dwindles gradually, sleeve 5 inner chamber's air compression and get into in the second sealing washer 11 through intake pipe 12, at this moment, through the volume increase of second sealing washer 11, it is inseparabler with the laminating of rectangle upper cover 3, metal base 1 and rectangle upper cover 3 are connected with the gap has effectively been avoided, and cause the problem that high-voltage direct current relay seal effect is poor, and when second sealing washer 11 volume increases to certain limit, the air reflux can make ripple plug 71 produce the compression, partial gas can get into in the second sealing washer 11 through the muffler, in long-term use, if second sealing washer 11 takes place, first sealing washer 10, intake pipe 12, sleeve 5 and the space that blocks up 7 constitutes, the density reduction of air, ripple 71 resumes the initial state gradually, inhale first gas in the first sealing washer 10 to the inside is followed by 7, the supplementary seal plug 7 is high-pressure seal effect to the inside of the second sealing washer is guaranteed, and the high-voltage direct current relay seal effect is carried out to the inside to the second sealing washer 5, and the high-pressure relay seal effect is guaranteed.
It will be appreciated by persons skilled in the art that the above embodiments are provided for illustration only and not for limitation of the invention, and that variations and modifications of the above described embodiments will fall within the scope of the claims of the invention as long as they fall within the true spirit of the invention.
Claims (3)
1. A high-voltage direct current relay with reliable seal structure, its characterized in that: the novel corrugated plastic sealing device is characterized in that a sleeve (5) is fixedly arranged at the lower end of an inner cavity of the metal base (1) in a square shape, an inserting cylinder (6) is movably inserted at the upper end of the sleeve (5), a plug (7) is arranged at the lower end of the inserting cylinder (6), the plug (7) comprises a corrugated rubber plug (71) and a cylindrical rubber plug (72), the upper end of the cylindrical rubber plug (72) is glued with the corrugated rubber plug (71), an air return hole (73) is formed in the side face of the cylindrical rubber plug (72), a first sealing ring (10) and a second sealing ring (11) are sequentially arranged at the upper end face of the metal base (1) from inside to outside, and an air return pipe (9) and an air inlet pipe (12) are respectively arranged at the lower end parts of the first sealing ring (10) and the second sealing ring (11);
A clamping groove corresponding to the insertion barrel (6) is formed in the right end part of the sleeve (5), and a second gasket (13) and a first gasket (8) are respectively arranged on the side surface and the bottom surface of the clamping groove;
the air return pipe (9) and the air inlet pipe (12) are arranged in the metal base (1), and the aperture of the air return pipe (9) is smaller than that of the air inlet pipe (12);
the inserting barrels (6) are fixedly welded on the inner side wall of the rectangular upper cover (3), and the number of the inserting barrels (6) corresponds to the number of the sleeves (5);
the inner end parts of the air return pipe (9) and the air inlet pipe (12) are fixedly inserted into the inserting cylinder (6), and the air return pipe (9) is arranged above the air inlet pipe (12);
The length of the plug tube (6) is smaller than that of the sleeve (5), and the plug (7) is arranged between the plug tube (6) and the sleeve (5);
the air return hole (73) is communicated with the inner cavity of the cylindrical rubber plug (72).
2. A high voltage dc relay having a reliable sealing structure according to claim 1, wherein: the first sealing ring (10) is in contact with the second sealing ring (11), and the first sealing ring (10) and the second sealing ring (11) are square and embedded in the metal base (1).
3. A high voltage dc relay having a reliable sealing structure according to claim 1, wherein: the upper end parts of the first sealing ring (10) and the second sealing ring (11) are arranged on the outer side of the metal base (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110581518.9A CN113506695B (en) | 2021-07-30 | 2021-07-30 | High-voltage direct-current relay with reliable sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110581518.9A CN113506695B (en) | 2021-07-30 | 2021-07-30 | High-voltage direct-current relay with reliable sealing structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113506695A CN113506695A (en) | 2021-10-15 |
| CN113506695B true CN113506695B (en) | 2024-07-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110581518.9A Active CN113506695B (en) | 2021-07-30 | 2021-07-30 | High-voltage direct-current relay with reliable sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113506695B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203359105U (en) * | 2013-05-30 | 2013-12-25 | 安徽奥丰汽车配件有限公司 | Sealing cover of oil tank |
| CN205984799U (en) * | 2016-08-28 | 2017-02-22 | 杭州富阳中荷电子有限公司 | Pressure control low pressure switch structure |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3264420D1 (en) * | 1981-08-05 | 1985-08-01 | Ver Edelstahlwerke Ag | Seal for sealing high-pressure devices |
| US7732722B1 (en) * | 2009-02-24 | 2010-06-08 | Honeywell International Inc. | Hermetically sealed pressure switch with composite actuation mechanism |
| CN207474371U (en) * | 2017-09-28 | 2018-06-08 | 国家电网公司 | A kind of vacuum circuit breaker and vacuum interrupter |
| IT201800002027A1 (en) * | 2018-01-26 | 2019-07-26 | Turboden Spa | Fluid seal device for rotating machines |
| CN209747418U (en) * | 2019-01-17 | 2019-12-06 | 芜湖轩坤电气有限公司 | Detachable anti-creeping circuit breaker structure |
| CN211479954U (en) * | 2020-04-09 | 2020-09-11 | 中汇瑞德电子（芜湖）有限公司 | Sealing structure of small high-voltage direct-current relay |
-
2021
- 2021-07-30 CN CN202110581518.9A patent/CN113506695B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203359105U (en) * | 2013-05-30 | 2013-12-25 | 安徽奥丰汽车配件有限公司 | Sealing cover of oil tank |
| CN205984799U (en) * | 2016-08-28 | 2017-02-22 | 杭州富阳中荷电子有限公司 | Pressure control low pressure switch structure |
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| Publication number | Publication date |
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| CN113506695A (en) | 2021-10-15 |
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