CN106531556A - Sealed high-voltage direct-current relay - Google Patents
Sealed high-voltage direct-current relay Download PDFInfo
- Publication number
- CN106531556A CN106531556A CN201611101676.5A CN201611101676A CN106531556A CN 106531556 A CN106531556 A CN 106531556A CN 201611101676 A CN201611101676 A CN 201611101676A CN 106531556 A CN106531556 A CN 106531556A
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- CN
- China
- Prior art keywords
- yoke
- insulating boot
- metal
- exit
- epimere
- 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.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/02—Bases; Casings; Covers
- H01H50/023—Details concerning sealing, e.g. sealing casing with resin
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/02—Bases; Casings; Covers
- H01H50/023—Details concerning sealing, e.g. sealing casing with resin
- H01H2050/025—Details concerning sealing, e.g. sealing casing with resin containing inert or dielectric gasses, e.g. SF6, for arc prevention or arc extinction
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Sealing Devices (AREA)
Abstract
The invention discloses a sealed high-voltage direct-current relay. The sealed high-voltage direct-current relay comprises an insulating cover and a yoke, wherein the yoke extends upwards to form a barrel-shaped yoke fixing part; the insulating cover comprises a top part, the top part extends downwards to form a barrel-shaped insulating cover fixing part, the top part is matched with the insulating cover fixing part so as to form an inverted cup-shaped structure, the yoke is matched with the insulating cover so as to form a cavity for accommodating a movable contact and a static contact, the lower end of the insulating cover fixing part is mutually in screw-thread fit with the yoke fixing part, a first seal ring is arranged on the outer side of the lower end of the insulating cover fixing part or on the lower side of the lower end of the insulating cover fixing part, and the screw-thread fit part of the lower end of the insulating cover fixing part and the yoke fixing part is filled with sealing gluewater. The relay disclosed by the invention has the advantages that the sealing performance is high, the using performance of the relay can be guaranteed and the production cost is reduced.
Description
Technical field
The present invention relates to a kind of closed type HVDC relay.
Background technology
HVDC relay includes that insulating boot and yoke, insulating boot and yoke are formed with receiving stationary contact component and move and touches
The chamber of point component, stationary contact component include exit and stationary contact, and exit is mutually fixed with insulating boot and extends to insulating boot
Outside, wherein, chamber domestic demand evacuation is simultaneously filled with noble gases.At present in technology, insulating boot mostly is plastic material or ceramic material
Matter, adopts the insulating boot of plastic material fluid sealant of arranging in pairs or groups to carry out encapsulation process to chamber to ensure the sealing of chamber, to modeling
Material insulating boot carries out sealant sealing with the contact position of yoke, and carries out fluid sealant to exit with the contact position on the outside of insulating boot
Sealing；Using the insulating boot of ceramic material, then the rigidity of product structure is ensured by the rigidity of ceramic material itself, so as to ensure
The sealing of chamber.
The mode of plastic insulation cover collocation sealant pouring and sealing has that the production cycle is shorter, technological requirement is relatively low, production cost compared with
Low advantage, but plastic insulation cover in long use can temperature influence soften, fluid sealant also can temperature influence burnt and sent out
Huang, the noble gases of chamber have disclosure risk；And fluid sealant temperature influence can expand with heat and contract with cold, meeting between fluid sealant and exit
There is gap, the generation of explosion accident can be caused.
Using the relay of ceramic material insulating boot, due to the ceramic insulation cover rigidity of itself, for a long time using also only
Ceramic insulation cover crack is caused, without the danger that Fire explosion occurs, but the relay using ceramic insulation cover needs to carry out
The soldering of the soldering, exit and ceramic insulation cover of ceramic insulation cover and yoke, its production cycle is longer, cost to be produced compared with
It is high.
The content of the invention
It is an object of the invention to provide a kind of sealing height, the height that can guarantee that relay performance, reduce production cost
Straightening current relay.
For achieving the above object, the present invention is adopted the following technical scheme that：A kind of closed type HVDC relay, including exhausted
Edge cover and yoke, the yoke are upwardly extended and are formed with yoke fixed part cylindrical in shape, the insulating boot include top, top to
Under be extended with insulating boot fixed part cylindrical in shape, the top coordinates the cup-like structure to constitute back-off with insulating boot fixed part,
The yoke coordinates to be formed with the chamber for accommodating movable contact and stationary contact, the insulating boot fixed part lower end with insulating boot
Coordinate with the mutual screw thread of the yoke fixed part, set on the downside of the insulating boot fixed part lower end outside or insulating boot fixed part lower end
The first sealing ring is equipped with, the insulating boot fixed part lower end is filled with sealing glue with the thread fiting part position of yoke fixed part.
Wherein, insulating boot is made using the isolation material of non-plastic, such as ceramics, makes the relay of the present invention not receive temperature
Degree affects the situation that insulating boot softens, the risk that within the chamber noble gases can be avoided to leak.The present invention is threaded connection
Fixed mode carries out the fixation of insulating boot and yoke, it is not necessary to carry out brazing operation, desired technique simpler, cost is more
It is low.The sealing of insulating boot and yoke thread fiting part position is carried out by fluid sealant, insulating boot and yoke are mutually fixed to be formed to avoid
Within the chamber noble gases leakage.Insulating boot lower end can form external screw thread, can also form female thread, and yoke is formed and insulation
The corresponding helicitic texture of cover.Sealant pouring and sealing can be carried out in several ways, such as form heavy glue groove on the outside of insulating boot, by past
In heavy glue groove, encapsulating is sealed；As fluid sealant has certain viscosity, also gluing can be carried out in thread fiting part point directly close
Envelope.Can be shunk by temperature change due to sealing after the glue solidifies so that the gap at screw thread cooperation is exposed, and there are noble gases
The risk of leakage, the present invention by the downside of insulating boot fixed part or outside arrange the first sealing ring, by the first sealing ring pair
Sealing gap between insulating boot fixed part and yoke fixed part.
Preferably, the insulating boot is made of ceramic materials, insulating boot fixed part lower end is formed with external thread part, described
Yoke fixed part is formed with internal thread part, and the yoke upper surface is formed with the first annular groove for extending downwardly, and described first
Sealing ring coordinates in the first annular groove, and the insulating boot is screwed with the yoke and fixes the insulating boot
Subordinate's end face is offseted with first sealing ring.
Wherein, when insulating boot fixed part forms internal thread part, yoke fixed part forms external thread part, under insulating boot fixed part
End outer wall forms oriented radially inner side and extends to form the 5th annular groove, and the first sealing ring is set in insulating boot lower end outside simultaneously
In the 5th annular groove；Or yoke upper surface is formed with the first annular groove for extending downwardly, the first sealing ring is arranged on
In first annular groove.Insulating boot fixed part is formed with external thread part, and the screw thread for forming internal thread part compared with insulating boot fixed part is matched somebody with somebody
For conjunction mode, can make that relay volume is less, the assembling of the first sealing ring can be made more convenient.Yoke is carried out with insulating boot
Before assembling, the first sealing ring is positioned in first annular groove, subsequent insulating boot is screwed with yoke, with insulating boot admittedly
Determine subordinate end close with yoke upper surface, the first sealing ring is pressed in first annular groove by insulating boot fixed part lower end.
Preferably, the outer radial cell wall of the first annular groove is located relatively at the yoke fixed part lower end inner wall
Outside, the first sealing ring outer rim contacted with the outer radial cell wall of the first annular groove；The yoke fixed part
Upper end is formed with the first outer bulge loop to radial outside extension, and the inwall of the first outer bulge loop extends to form ring to radial outside
Shape glue-filling slot, the sealing glue fill the annular glue-filling slot.
Wherein, the first sealing ring outer rim is made to extend to the outside of yoke fixed part lower end inner wall, so that the first sealing ring quilt
Part of the deformation to be full of on the outside of first annular groove during compression, so that the first sealing ring closure yoke fixed part is solid with insulating boot
Determine the gap between portion；Wherein, less first sealing ring of diameter is may be selected, and makes the first sealing ring outer rim and first annular groove
Outer radial cell wall offsets；Also the first sealing ring being relatively large in diameter is may be selected, the first sealing ring inner edge and first annular groove is made
Radially inside cell wall offsets.Wherein, annular glue-filling slot is used for sealing the encapsulating of glue, after yoke is coordinated with insulating boot screw thread again
The encapsulating toward in annular glue-filling slot, to save encapsulating amount.
Preferably, the stationary contact is fixed on the lower end of exit, the exit includes exit epimere and extraction
End hypomere, the external diameter of the exit epimere are more than the external diameter of the exit hypomere to form ledge structure, the insulating boot
Top is formed with the first through hole, and the exit hypomere outer wall and the first through hole hole wall screw thread coordinate so that the exit
Lower end extends to the within the chamber, is provided with the second sealing at the top of the exit epimere lower surface and insulating boot between upper surface
Circle, the exit and screw top coordinate so that second sealing ring is limited between exit epimere and top；Institute
The lower surface for stating exit hypomere is formed with upwardly extending second annular groove, or the top upper surface is formed with to downward
The second cannelure stretched, the exit are screwed with the insulating boot and make second sealing ring be located at second ring
In connected in star；The exit and screw top coordinate so that second annular groove is communicated with first through hole, institute
State the second sealing ring inner edge to contact with the exit hypomere outer wall.
Above-mentioned setting by the second sealing ring to block at the top of exit epimere lower surface and insulating boot between upper surface between
Gap, to ensure the sealing of chamber；The fixation of the second sealing ring is realized by being screwed at the top of exit and insulating boot.
Preferably, the insulating boot and yoke are both secured in housing, the housing be formed with housing cavity and including
In the side wall for enclosing structure, the insulating boot is located in housing cavity and to make the sidewall sheath be located at the insulating boot footpath outside
Side, the housing are combined with lid, and the top of covering the insulating boot, the upper lid and the top are fixed and covered to upper lid with side wall
Between be formed with gap, and the gap filled with sealing glue, the sealing glue surround the exit epimere and with draw
Go out to hold epimere radial outer wall to contact.By the second sealing ring and sealing glue dual-seal ensureing the stream of within the chamber noble gases
Lose.
Preferably, the insulating boot and yoke are both secured in housing, the housing be formed with housing cavity and including
In the side wall for enclosing structure, the within the chamber is provided with interior magnet steel, is provided with outer steel, the outer magnetic between the side wall and insulating boot
Height of the height of the upper surface of steel higher than the stationary contact lower surface, the outer steel are arranged on the upside of block, the block
Be formed in the housing sidewall, or the block formed with the insulating boot fixed part outer wall on.The present invention is by insulation
Cover peripheral hardware outer steel, to increase arc blow-out quantity pole, to improve arc blow-out effect, covers arc blow-out short transverse, so as to avoid sound from touching
Point contact position is damaged, to improve the service life of invention relay.
Preferably, the housing is combined with lid, the housing is formed with opening upwards, the upper lid and the side
Wall is formed with the lip configuration being engaged, the upper cap-shaped into there is the upper lid for extending downwardly raised, the upper lid and the housing
Coordinate to close the opening and make in the housing cavity of the raised extensional shell of the upper lid, the outer steel is limited in described
Between block and upper lid projection；The outer steel is arranged in a ring, and the outer steel has the outer steel list of some curved settings
Body is combined, and the block is disposed on the inside sidewalls in a ring or the insulating boot is fixed；The insulating boot is solid
Determine on the outside of portion, to be arranged with the 3rd sealing ring, the 3rd sealing ring lower edge is contacted with the outer steel upper surface.Above-mentioned setting is used
In the spacing fixation of outer steel, by the fixation that the upper lid of upper lid is raised and block is realized on outer steel axial direction, by housing with
Realize outer steel fixation radially in gap between insulating boot fixed part.Wherein, the 3rd sealing ring occupies certain space, to reduce
Encapsulating amount.
Preferably, the insulating boot is formed with the second through hole up and down through top, second through hole is used for
Pass through exhaustor, the top upwardly extends and is formed with exhaustor annular protrusion, the exhaustor annular protrusion is around described
Second through hole, the exhaustor include exhaustor epimere and exhaustor hypomere, and the exhaustor epimere external diameter is more than the row
To form ledge structure, the lower surface of the exhaustor epimere is offseted trachea hypomere external diameter with the top upper surface, the row
The 4th sealing ring is arranged with outside trachea epimere, and the 4th sealing ring is located on the inside of the exhaustor annular protrusion, the aerofluxuss
Filled with sealing glue with fixation the 4th sealing ring in pipe annular protrusion, the exhaustor hypomere becomes away from one end of epimere
Shape simultaneously makes the outer wall of the exhaustor hypomere and the top lower surface offset.
For ensureing the sealing operation between insulating boot and exhaustor, the present invention is provided with the 4th sealing ring, by the 4th sealing
The setting of circle makes the HVDC relay sealing of the present invention more to the sealing gap between the second through hole and exhaustor
It is good, in order to the evacuation of within the chamber, to ensure the performance of HVDC relay of the present invention.
Preferably, metal-back on the downside of the yoke, is fixed with, tubular of the metal-back in upper end open lower end closed
Structure, magnetic conductive cylinder are set on the outside of the metal-back, and the metal-back is the cylindrical metal shell by made by without magnetic metal material, institute
State yoke lower surface and be formed with the 3rd annular groove for upwardly extending and arranging in a ring, the metal-back upper limb is to radial outside
Extend to be formed with metal-back fixed part in a ring, metal-back fixed part is fixed in the 3rd annular groove, dynamic iron core
It is fixed in metal-back, and dynamic iron core outer wall is coordinated with metal-back inwall gap；The dynamic iron core includes dynamic iron core top and moves
Mandrel lower, the dynamic iron core top form the second outer bulge loop that oriented radial outside extends, and the metal-back includes metal-back
Top and metal-back bottom, the internal diameter on the metal-back top are more than the internal diameter of the metal-back bottom, the dynamic iron core bottom
Gap coordinates in the metal-back bottom；Bobbin is provided with the outside of the magnetic conductive cylinder, and coil is wrapped on the bobbin, institute
State bobbin and be formed with to inner side the second internal projecting ring for extending, the magnetic conductive cylinder upper limb is offseted with the second internal projecting ring lower edge,
Metal-back top external diameter is more than the metal-back lower outer diameter, and second internal projecting ring is located at subordinate on the metal-back
Side, the coil are externally provided with lower yoke cup, and the magnetic conductive cylinder is limited between lower yoke cup bottom surface and second internal projecting ring.
The present invention forms a metal-back chamber for accommodating dynamic iron core, insulation by arranging metal-back under yoke
Connection of the chamber of cover by the through hole that passes through for catch bar and metal-back chamber, so that insulating boot, yoke, metal-back three
A confined space is constituted, is lost in the noble gases for avoiding from catch bar with yoke gap leaking, and is avoided relay shell
External air flows within the chamber by the gap, to ensure the low energy of electric arc, to avoid sound contact position from being damaged,
To ensure the performance and service life of relay.
Preferably, the movable contact is fixed on movable contact spring, the epimere of catch bar is located at more than yoke and dynamic with described
Reed is mutually fixed, and the yoke is formed with the yoke through hole passed through for the catch bar stage casing, the hypomere of the catch bar with it is dynamic
Iron core is fixed, and is formed with the first through hole for extending radially through catch bar and/or extends to radially inner side on the catch bar epimere
Fluting, catch bar epimere injection is fixed with plastics limited block, and the portion of material of the plastics limited block is located at described the
In pass through aperture or fluting, in the fluting or through hole, the first fixture is fixed with, the plastics limited block cladding described the
One fixture；The catch bar epimere is arranged with and returns power spring and pallet, and the pallet outer rim upwardly extends to be formed with radially
The pallet block of ring-shaped section and ring-shaped, the power of the returning spring upper end are offseted with movable contact spring lower surface, the power of the returning lower spring end and institute
State pallet upper surface to offset, the internal diameter of the pallet block is more than the maximum outside diameter of the power of the returning lower spring end；The dynamic iron core
Center is provided with up and down through passing through for the catch bar hypomere through groove, described to be formed outside oriented radial direction through groove cell wall
The first mating groove that side extends, the catch bar hypomere are formed with some second mating grooves and/or the second through hole, and described second
Mating groove extends to catch bar hypomere radially inner side, and second through hole extends radially through the catch bar hypomere, and described first
Downward through the dynamic iron core, the dynamic iron core and catch bar make first mating groove and the second mating groove with merging to mating groove
Communicate, filled with fixed glue in first mating groove and the second mating groove, the dynamic iron core and catch bar are by described solid
Determine glue to be fixed together；The second fixture is fixed with second through hole and/or the second mating groove；Described first coordinates
Groove radial direction cell wall extends to radial outside to be formed with the 3rd mating groove, is fixed with the 3rd fixture in the 3rd mating groove；
The part or all of radial direction cell wall of first mating groove is formed with female thread structure.
By being molded by limited block on catch bar, to avoid catch bar from excessively moving down, the present invention's pushes away the present invention
Lever does not need the perpendicularity of turning operation, catch bar to be unaffected, and has used the performance of the relay of the present invention
Also it is unaffected；And the limited block of the present invention is injection molding, the limited block that more direct car goes out（Metal material）
Lighter in weight, used catch bar of the present invention Control respond it is more sensitive.Wherein, when being molded, due to
Catch bar is provided with fluting, through hole, and the plastics of melting can be flowed in fluting and through hole, after plastics solidification limit can plastics
Position platform is mutually fixed with catch bar, to ensure the reliability of the present invention.Wherein, the shape slotted is selected as needed, as needed
Select the quantity of draw-in groove and through hole.Wherein, the first fixture and the second fixture may be selected in collar coordinate fluting, or select
Bayonet fittings through hole, the 3rd fixture may be selected outer collar, lift plastics limited block and fixing glue by first, second fixture
Intensity after water-setting is solid.The molding of plastics limited block of the present invention is simple and convenient, can reduce the production cost of invention relay.This
Dynamic iron core is fixed together with catch bar by invention by the hydropexic mode of glue, is realized by the cooperation through groove with catch bar
The axially position of catch bar, is all not provided with screw thread on the bar wall of the cell wall and catch bar of groove, makes catch bar with dynamic iron core
Positioning precision is guaranteed, it is ensured that the performance of HVDC relay of the present invention；Wherein, fixed glue may be selected epoxy glue
Deng for fixed glue.Glue is fixed relatively to be screwed and processes more simple, can improve HVDC relay of the present invention
Efficiency of assembling, with improve production efficiency.
The present invention has that sealing is high, can guarantee that relay performance, reduces production cost, can improve production efficiency
Advantage.
Description of the drawings
Fig. 1 is overall a kind of generalized section of the invention；
Fig. 2 is overall another kind of generalized section of the invention；
Fig. 3 is a kind of generalized section that the insulating boot of the present invention is coordinated with yoke；
Fig. 4 is a kind of structural representation of the catch bar of the present invention；
Fig. 5 is a kind of structural representation that the catch bar of the present invention is coordinated with dynamic iron core；
Fig. 6 is a kind of structural representation of the metal-back of the present invention；
Fig. 7 is a kind of structural representation of the exhaustor of the present invention；
Fig. 8 is a kind of structural representation of the pallet of the present invention；
Fig. 9 is a kind of structural representation that the catch bar of the present invention is coordinated with movable contact spring.
Specific embodiment
Below according to the drawings and specific embodiments, the invention will be further described.
By shown in Fig. 1, Fig. 2, Fig. 3, a kind of closed type HVDC relay of the present invention, including insulating boot 1 and yoke
2, yoke 2 is upwardly extended and is formed with yoke fixed part 21 cylindrical in shape, and insulating boot 1 includes top 11, and top 11 has extended downwardly
Insulating boot fixed part 12 cylindrical in shape, top 11 coordinate to constitute the cup-like structure of back-off with insulating boot fixed part 12, yoke 2 with
Insulating boot 1 coordinates to be formed with the chamber for accommodating movable contact and stationary contact, and 12 lower end of insulating boot fixed part is fixed with yoke
21 mutual screw thread of portion coordinates, and is provided with the first sealing ring 10,12 lower end of insulating boot fixed part on the downside of 12 lower end of insulating boot fixed part
Sealing glue is filled with the thread fiting part position of yoke fixed part 21.
By shown in Fig. 1, Fig. 2, Fig. 3, Fig. 5, Fig. 9, insulating boot 1 is made of ceramic materials, 12 lower end shape of insulating boot fixed part
Into there is an external thread part, yoke fixed part 21 is formed with internal thread part 22, and 2 upper surface of yoke is formed with extend downwardly first annular
Groove 23, the first sealing ring 10 coordinate in first annular groove 23.The outer radial cell wall of first annular groove 23 is with respect to position
In the outside of 21 lower end inner wall of yoke fixed part, 10 outer rim of the first sealing ring is connect with the outer radial cell wall of first annular groove 23
Touch.21 upper end of yoke fixed part is formed with the first outer bulge loop 24 to radial outside extension, and the inwall of the first outer bulge loop 24 is to radially
Outside extends to form annular glue-filling slot 25, and sealing glue is filled in annular glue-filling slot 25.Insulating boot 1 is solid with 2 screw thread of yoke
Determine and make 12 lower surface of insulating boot fixed part to offset with the first sealing ring 10, the closure of the first sealing ring 10 yoke fixed part 21 with it is exhausted
Gap between edge cover fixed part 12
By shown in Fig. 1, Fig. 2, Fig. 3, stationary contact is fixed on the lower end of exit 3, and exit 3 includes exit epimere 31 and draws
End hypomere 32, the external diameter of exit epimere 31 are more than the external diameter of exit hypomere 32 to form ledge structure.11 at the top of insulating boot
The first through hole is formed with, 32 outer wall of exit hypomere and the cooperation of the first through hole hole wall screw thread are so that 3 lower end of exit extends
To on the downside of the top 11 of insulating boot 1.The second sealing is provided between 11 upper surfaces at the top of 31 lower surface of exit epimere and insulating boot
Circle 30, the lower surface of exit hypomere 32 is formed with upwardly extending second annular groove 33, and exit 3 is matched somebody with somebody with 11 screw thread of top
Close so that the second annular groove 33 is communicated with the first through hole, the second sealing ring 30 is limited in exit epimere 32 and top 11
Between, 30 inner edge of the second sealing ring is contacted with 32 outer wall of exit hypomere.
By shown in Fig. 1, Fig. 2, Fig. 3, insulating boot 1 and yoke 2 are both secured in housing, and housing is formed with housing cavity and wraps
Base 4 is included, base 4 is upwardly extended and is formed with the side wall 41 for enclosing structure, insulating boot 1 is located in housing cavity and makes side wall
41 are set in 1 radial outside of insulating boot.Housing is combined with lid 42, and upper lid 42 is formed with the lip knot for cooperating with side wall 41
The top 11 of covering insulating boot 1 is fixed and covered to structure 43, upper lid 42 with side wall 41, is formed with gap 44 between upper lid 42 and top 11, and
Filled with sealing glue in gap 44, sealing glue is surrounded exit epimere 31 and is contacted with exit epimere radial outer wall.
By shown in Fig. 1, Fig. 2, Fig. 3, the within the chamber of insulating boot 1 is provided with interior magnet steel 13, is provided between side wall 41 and insulating boot 1
Outer steel 45, the height of the upper surface of outer steel 45 are higher than the height of stationary contact lower surface.Outer steel 45 is arranged on block 46
Side, block 46 are formed on the inside of housing sidewall 41.Upper lid 42 is formed with the upper lid projection 47 for extending downwardly, upper lid 42 and housing
Side wall 41 coordinates with the opening on the upside of closed side wall 41, and in the housing cavity for making cover raised 47 extensional shell, outer steel 47
It is limited between block 46 and upper lid raised 47.
Outer steel 45 is arranged in a ring, and the outer steel combination of monomers that outer steel 45 has some curved settings is formed, block
46 are disposed on the inside of side wall 41 in a ring.The 3rd sealing ring 40 is provided with the upside of outer steel 45, and the 3rd sealing ring is set in absolutely
On the outside of edge cover fixed part 12,40 lower edge of the 3rd sealing ring is contacted with outer steel upper surface.It is filled in gap 44 between lid and top
Sealing glue extend on the upside of outer steel, the 3rd sealing ring is used for saving encapsulating amount, and prevents fluid sealant water from flowing to outer steel
Downside.
By shown in Fig. 2, Fig. 7, at the top of insulating boot, 11 are formed with the second through hole up and down through top, and the second through hole is used
In passing through exhaustor 5, top 11 upwardly extends and is formed with exhaustor annular protrusion 53, and exhaustor annular protrusion 53 surrounds second
Through hole.Exhaustor 5 includes exhaustor epimere 51 and exhaustor hypomere 52, and 51 external diameter of exhaustor epimere is more than exhaustor hypomere 52
To form ledge structure, lower surface and 11 upper surface of top of exhaustor epimere 51 offset external diameter, the lower end of exhaustor hypomere 52
Extend on the downside of top 11.The 4th sealing ring 50 is arranged with outside exhaustor epimere 51, and the 4th sealing ring 50 is located at exhaustor annular
On the inside of raised 53, filled with sealing glue to fix the 4th sealing ring 50 in exhaustor annular protrusion 53, by copper pipe tube expander
Deform exhaustor hypomere lower end, and make 11 lower surfaces at the top of the outer wall of exhaustor hypomere 52 and insulating boot offset.
By shown in Fig. 1, Fig. 2, Fig. 5, Fig. 6, metal-back 6 on the downside of yoke 2, is fixed with, metal-back 6 is sealed in upper end open lower end
The tubular construction for closing, magnetic conductive cylinder 7 are set on the outside of metal-back 6, and metal-back 6 is the cylindrical metal by made by without magnetic metal material
Shell.2 lower surface of yoke is formed with the 3rd annular groove 26 for upwardly extending and arranging in a ring, and 6 upper limb of metal-back is outside to footpath
Side extends to be formed with metal-back fixed part 61 in a ring, and metal-back fixed part 61 is weldingly fixed on the 3rd annular groove 26
Interior, dynamic iron core 8 is fixed in metal-back 6, and 8 outer wall of dynamic iron core is coordinated with 8 inwall gap of metal-back.
Dynamic iron core 8 includes dynamic iron core top and dynamic iron core bottom, dynamic iron core top form that oriented radial outside extends the
Two outer bulge loops 84, metal-back 6 include metal-back top 62 and metal-back bottom 63, and the internal diameter on metal-back top 62 is more than metal-back
The internal diameter of bottom 63, dynamic iron core underclearance coordinate in metal-back bottom 63.Bobbin 64, coil is provided with the outside of magnetic conductive cylinder 7
It is wrapped on bobbin 64, bobbin 64 is formed with to inner side the second internal projecting ring 65 for extending, 7 upper limb of magnetic conductive cylinder and the second convex
65 lower edge of ring offsets, and 62 external diameter of metal-back top is more than 63 external diameter of metal-back bottom, and the second internal projecting ring 65 is located at metal-back top
On the downside of in the of 62, coil is externally provided with lower yoke cup 66, and magnetic conductive cylinder 7 is limited between 66 bottom surface of lower yoke cup and the second internal projecting ring 65.
By shown in Fig. 1, Fig. 2, Fig. 4, Fig. 5, Fig. 8, the epimere of catch bar 20 is positioned at yoke more than 2 and mutually solid with movable contact spring 9
Fixed, yoke 2 is formed with the yoke through hole 27 passed through for 20 stage casing of catch bar, and hypomere and the dynamic iron core 8 of catch bar 20 are fixed.Promote
The fluting 91 of the annular setting that oriented radially inner side extends is formed on 20 epimere of bar, is fixed with the first fixture 92 in fluting 91,
First securing member 92 is a collar, and the injection of 20 epimere of catch bar is fixed with plastics limited block 93.During injection, the plastics of melting extend
To fluting 91, so that the first securing member 92 is coated by plastics limited block 93 after plastics solidification.
20 epimere of catch bar is arranged with and returns power spring 94 and pallet 95, and 95 outer rim of pallet is upwardly extended radially is cut with being formed with
Face pallet block 96 in a ring, is returned 94 upper end of power spring and is offseted with 9 lower surface of movable contact spring, returns 94 lower end of power spring and pallet 95
Upper surface offsets, and the internal diameter of pallet block 96 is more than the maximum outside diameter for returning 94 lower end of power spring.
8 center of dynamic iron core is provided with up and down through passing through for 20 hypomere of catch bar through groove, is formed through groove cell wall
The first mating groove 81 that oriented radial outside extends, 20 hypomere of catch bar are formed with some second mating grooves 82, the second mating groove
82 extend to 20 hypomere radially inner side of catch bar.Dynamic iron core 8 and catch bar 20 coordinate the first mating groove 81 and second with merging
Groove 82 is communicated, and filled with fixed glue in the first mating groove 81 and the second mating groove 82, fixed the glue solidifies so that 8 He of dynamic iron core
Catch bar 20 is fixed together, and whole radial direction cell walls of the first mating groove 81 are formed with female thread structure 83.
Insulating boot is made using ceramic material, make the present invention relay will not temperature influence occur insulating boot soften
Situation, the risk that within the chamber noble gases can be avoided to leak.The present invention be threaded connection fixed mode carry out insulating boot and
The fixation of yoke, it is not necessary to carry out brazing operation, desired technique simpler, cost is lower, so that the present invention has reduces life
Produce the advantage of cost.The sealing of insulating boot and yoke thread fiting part position is carried out by fluid sealant, to avoid insulating boot and yoke
The mutually leakage of the noble gases of the fixed within the chamber for being formed.Can be shunk by temperature change due to sealing after the glue solidifies so that spiral shell
Gap at stricture of vagina cooperation is exposed, the risk that there is noble gases leakage, and the present invention is by the downside of insulating boot fixed part or outer
Side arranges the first sealing ring, by the first sealing ring to the sealing gap between insulating boot fixed part and yoke fixed part.
The present invention passes through the second sealing ring to block the gap at the top of exit epimere lower surface and insulating boot between upper surface,
To ensure the sealing of chamber；The fixation of the second sealing ring is realized by being screwed at the top of exit and insulating boot.
For ensureing the sealing operation between insulating boot and exhaustor, the present invention is provided with the 4th sealing ring, by the 4th sealing
The setting of circle makes the HVDC relay sealing of the present invention more to the sealing gap between the second through hole and exhaustor
It is good, in order to the evacuation of within the chamber, to ensure the performance of HVDC relay of the present invention.
The present invention forms a metal-back chamber for accommodating dynamic iron core, insulation by arranging metal-back under yoke
Connection of the chamber of cover by the through hole that passes through for catch bar and metal-back chamber, so that insulating boot, yoke, metal-back three
A confined space is constituted, is lost in the noble gases for avoiding from catch bar with yoke gap leaking, and is avoided relay shell
External air flows within the chamber by the gap, to ensure the low energy of electric arc, to avoid sound contact position from being damaged,
To ensure the performance and service life of relay.
Claims (10)
1. a kind of closed type HVDC relay, it is characterised in that including insulating boot and yoke, the yoke upwardly extends shape
Into there is yoke fixed part cylindrical in shape, the insulating boot includes top, and top down is extended with insulating boot fixed part cylindrical in shape,
The top coordinates the cup-like structure to constitute back-off, the yoke to coordinate to be formed with use with insulating boot with insulating boot fixed part
In the chamber for accommodating movable contact and stationary contact, the insulating boot fixed part lower end is coordinated with the mutual screw thread of the yoke fixed part,
The first sealing ring is provided with the downside of the insulating boot fixed part lower end outside or insulating boot fixed part lower end, the insulating boot is fixed
Subordinate end is filled with sealing glue with the thread fiting part position of yoke fixed part.
2. a kind of closed type HVDC relay according to claim 1, it is characterised in that the insulating boot is by ceramics
Material is made, and insulating boot fixed part lower end is formed with external thread part, and the yoke fixed part is formed with internal thread part, the yoke
Upper surface is formed with the first annular groove for extending downwardly, and first sealing ring coordinates in the first annular groove, institute
State insulating boot to be screwed with the yoke and make the insulating boot fixed part lower surface offset with first sealing ring.
3. a kind of closed type HVDC relay according to claim 2, it is characterised in that the first annular groove
Outer radial cell wall be located relatively at the outside of the yoke fixed part lower end inner wall, the first sealing ring outer rim and described
The outer radial cell wall contact of one annular groove；The yoke fixed part upper end is formed with the first evagination to radial outside extension
Ring, the inwall of the first outer bulge loop extend to radial outside to form annular glue-filling slot, and the sealing glue fills the ring
Shape glue-filling slot.
4. a kind of closed type HVDC relay according to claim 1 and 2, it is characterised in that the stationary contact is fixed
In the lower end of exit, the exit includes exit epimere and exit hypomere, and the external diameter of the exit epimere is more than
The external diameter of the exit hypomere is formed with the first through hole, the exit to form ledge structure at the top of the insulating boot
Hypomere outer wall and the first through hole hole wall screw thread coordinate so that the exit lower end extends to the within the chamber, the exit
The second sealing ring is provided with the top of epimere lower surface and insulating boot between upper surface, the exit is coordinated so that institute with screw top
State the second sealing ring to be limited between exit epimere and top；The lower surface of the exit hypomere is formed with and upwardly extends
The second annular groove, or the top upper surface is formed with the second cannelure for extending downwardly, the exit with it is described absolutely
Edge cover is screwed and second sealing ring is located in second annular groove；
The exit and screw top coordinate so that second annular groove is communicated with first through hole, and described second
Sealing ring inner edge is contacted with the exit hypomere outer wall.
5. a kind of closed type HVDC relay according to claim 4, it is characterised in that the insulating boot and yoke
It is both secured in housing, the housing is formed with housing cavity and including in the side wall for enclosing structure, and the insulating boot is located at shell
Internal intracavity simultaneously makes the sidewall sheath be located at the insulating boot radial outside, and the housing is combined with lid, and upper lid is solid with side wall
Determine and cover the top for covering the insulating boot, be formed between the upper lid and the top in gap, and the gap filled with close
Sealing water, the sealing glue are surrounded the exit epimere and are contacted with exit epimere radial outer wall.
6. a kind of closed type HVDC relay stated according to claim 1 or 2, it is characterised in that the insulating boot and yoke
It is both secured in housing, the housing is formed with housing cavity and including in the side wall for enclosing structure, and the within the chamber is provided with interior
Magnet steel, is provided with outer steel between the side wall and insulating boot, the height of the upper surface of the outer steel is higher than under the stationary contact
The height of end face, the outer steel are arranged on the upside of block, and the block is formed in the housing sidewall, or the block shape
Into with the insulating boot fixed part outer wall on.
7. a kind of closed type HVDC relay according to claim 6, it is characterised in that the housing is combined with
Lid, the housing are formed with opening upwards, and the upper lid is formed with the lip configuration being engaged, the upper lid with the side wall
It is formed with the upper lid for extending downwardly raised, the upper lid coordinates to close the opening and make the upper lid raised with the housing
In the housing cavity of extensional shell, the outer steel is limited between the block and upper lid projection；The outer steel is in ring
Shape is arranged, and the outer steel combination of monomers that the outer steel has some curved settings forms, block interval setting in a ring
Fix in the inside sidewalls or the insulating boot；It is arranged with the 3rd sealing ring on the outside of the insulating boot fixed part, the described 3rd
Sealing ring lower edge is contacted with the outer steel upper surface.
8. a kind of closed type HVDC relay according to claim 1 and 2, it is characterised in that the insulating boot is formed
There is the second through hole up and down through top, second through hole is used for passing through exhaustor, and the top upwardly extends shape
Into there is exhaustor annular protrusion, the exhaustor annular protrusion surrounds second through hole, and the exhaustor includes exhaustor
Epimere and exhaustor hypomere, the exhaustor epimere external diameter are more than the exhaustor hypomere external diameter to form ledge structure, described
The lower surface of exhaustor epimere is offseted with the top upper surface, is arranged with the 4th sealing ring outside the exhaustor epimere, described
4th sealing ring is located on the inside of the exhaustor annular protrusion, filled with sealing glue with fixation in the exhaustor annular protrusion
4th sealing ring, the exhaustor hypomere deform away from one end of epimere and make the outer wall of the exhaustor hypomere with it is described
Top lower surface offsets.
9. a kind of closed type HVDC relay according to claim 1 and 2, it is characterised in that solid on the downside of the yoke
Surely there is metal-back, tubular construction of the metal-back in upper end open lower end closed, magnetic conductive cylinder are set on the outside of the metal-back,
The metal-back is the cylindrical metal shell by made by without magnetic metal material, and the yoke lower surface is formed with and upwardly extends and in ring
The 3rd annular groove that shape is arranged, the metal-back upper limb extends to radial outside to be fixed with the metal-back being formed with a ring
Portion, metal-back fixed part are fixed in the 3rd annular groove, and dynamic iron core is fixed in metal-back, and dynamic iron core outer wall and gold
Category shell inwall gap coordinates；
The dynamic iron core includes dynamic iron core top and dynamic iron core bottom, and the dynamic iron core top forms what oriented radial outside extended
Second outer bulge loop, the metal-back include metal-back top and metal-back bottom, and the internal diameter on the metal-back top is more than described
The internal diameter of metal-back bottom, the dynamic iron core underclearance coordinate in the metal-back bottom；
Bobbin is provided with the outside of the magnetic conductive cylinder, and coil is wrapped on the bobbin, and the bobbin is formed with to inner side and prolongs
The second internal projecting ring stretched, the magnetic conductive cylinder upper limb are offseted with the second internal projecting ring lower edge, and metal-back top external diameter is more than
The metal-back lower outer diameter, second internal projecting ring are located on the downside of the metal-back top, and the coil is externally provided with lower yoke
Cup, the magnetic conductive cylinder are limited between lower yoke cup bottom surface and second internal projecting ring.
10. a kind of closed type HVDC relay according to claim 1 and 2, it is characterised in that the movable contact is solid
On movable contact spring, the epimere of catch bar is located at more than yoke and is mutually fixed with the movable contact spring, and the yoke is formed with and supplies institute
The yoke through hole that catch bar stage casing passes through is stated, hypomere and the dynamic iron core of the catch bar are fixed, formed on the catch bar epimere
The fluting for having the first through hole for extending radially through catch bar and/or extending to radially inner side, the catch bar epimere injection are fixed
The portion of material for having plastics limited block, the plastics limited block is located in first through hole or fluting, described to slot or pass through
The first fixture is fixed with perforation, and the plastics limited block coats first fixture；The catch bar epimere is arranged with
Power spring and pallet is returned, the pallet outer rim upwardly extends to be formed with radial section pallet block in a ring, the power of returning
Spring upper end is offseted with movable contact spring lower surface, and the power of the returning lower spring end is offseted with the pallet upper surface, the pallet block
Internal diameter more than the power of the returning lower spring end maximum outside diameter；
The dynamic iron core center is provided with up and down through passing through for the catch bar hypomere through groove, described through groove cell wall
The first mating groove that oriented radial outside extends is formed, the catch bar hypomere is formed with some second mating grooves and/or second
Through hole, second mating groove extend to catch bar hypomere radially inner side, and second through hole extends radially through the promotion
Bar hypomere, downward through the dynamic iron core, the dynamic iron core and catch bar make described first to match somebody with somebody with merging to first mating groove
Close groove and the second mating groove to communicate, filled with fixed glue in first mating groove and the second mating groove, the dynamic iron core and
Catch bar by the fixing glue hydropexis together；It is solid that second is fixed with second through hole and/or the second mating groove
Determine part；The first mating groove radial direction cell wall extends to radial outside to be formed with the 3rd mating groove, in the 3rd mating groove
It is fixed with the 3rd fixture；The part or all of radial direction cell wall of first mating groove is formed with female thread structure.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611101676.5A CN106531556B (en) | 2016-12-05 | 2016-12-05 | A kind of closed type high voltage direct current relay |
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| CN201611101676.5A CN106531556B (en) | 2016-12-05 | 2016-12-05 | A kind of closed type high voltage direct current relay |
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| CN106531556B CN106531556B (en) | 2018-06-01 |
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| CN108534961A (en) * | 2018-05-24 | 2018-09-14 | 深圳巴斯巴汽车电子有限公司 | The quick helium mass spectrum leak detection device of multistation self sealss |
| CN109148224A (en) * | 2018-08-28 | 2019-01-04 | 浙江百事宝电器股份有限公司 | A kind of magnetic quenching relay |
| CN109300743A (en) * | 2018-08-28 | 2019-02-01 | 浙江百事宝电器股份有限公司 | A kind of D.C. contactor |
| CN110752117A (en) * | 2018-01-02 | 2020-02-04 | 吉加瓦有限责任公司 | Contactor device |
| CN112908780A (en) * | 2021-01-28 | 2021-06-04 | 厦门理工学院 | Multiple sealing method and structure of high-voltage direct-current relay |
| WO2022134258A1 (en) * | 2020-12-21 | 2022-06-30 | 东莞市中汇瑞德电子股份有限公司 | High-voltage direct-current relay having reliable sealing structure |
| CN115458367A (en) * | 2022-11-09 | 2022-12-09 | 浙江英洛华新能源科技有限公司 | Contact part sealing structure of relay |
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| CN112908780A (en) * | 2021-01-28 | 2021-06-04 | 厦门理工学院 | Multiple sealing method and structure of high-voltage direct-current relay |
| CN112908780B (en) * | 2021-01-28 | 2024-03-19 | 厦门理工学院 | Multiple sealing method and structure of high-voltage direct-current relay |
| CN115458367A (en) * | 2022-11-09 | 2022-12-09 | 浙江英洛华新能源科技有限公司 | Contact part sealing structure of relay |
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