CN206301741U - A kind of pressure relief assembly for D.C. contactor - Google Patents
A kind of pressure relief assembly for D.C. contactor Download PDFInfo
- Publication number
- CN206301741U CN206301741U CN201621491190.2U CN201621491190U CN206301741U CN 206301741 U CN206301741 U CN 206301741U CN 201621491190 U CN201621491190 U CN 201621491190U CN 206301741 U CN206301741 U CN 206301741U
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- CN
- China
- Prior art keywords
- valve element
- valve
- hole
- contactor
- valve core
- 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.)
- Expired - Fee Related
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Abstract
The utility model provides a kind of pressure relief assembly for D.C. contactor, the D.C. contactor includes housing and stationary contact support, the stomata inside and outside housing is communicated with the stationary contact support, the pressure relief assembly is sealedly connected in the stomata, and the pressure relief assembly includes one way pressure-reducing valve and the dust cap being located on the one way pressure-reducing valve.The utility model installs one way pressure-reducing valve at stomata, and carrying out pressure release by pressure-reducing valve ensures that using for D.C. contactor is safe, and one way pressure-reducing valve is protected using dust cap, it is to avoid pressure-reducing valve is blocked because of dust.
Description
Technical field
The utility model is related to D.C. contactor technical field, more particularly to a kind of decompression group for D.C. contactor
Part.
Background technology
During the manufacture craft of D.C. contactor include vacuumize with two stages of inflatable body, vacuumize and mainly pass through
Stomata on stationary contact support is clean by the air discharge in enclosure interior air and resin, and inflatable body is mainly to be taken out to process
Inert gas is filled with housing after vacuum, to improve the reliability of D.C. contactor.When completing to vacuumize and inflatable body two
After the technique in stage, just shut stomata is closed.
When D.C. contactor, internal temperature can be raised in use, therefore, cause the pressure of inside to increase, due to gas
Hole is the pressure release that cannot carry out shut, and pressure crosses conference makes D.C. contactor blast occur or directly damage, and there is potential safety hazard.
Utility model content
Technical problem to be solved in the utility model is：In order to overcome deficiency of the prior art, the utility model is carried
For a kind of pressure relief assembly for D.C. contactor, unidirectional pressure-reducing valve is installed at stomata, pressure release guarantor is carried out by pressure-reducing valve
Using for card D.C. contactor is safe.
The utility model solves its technical problem technical scheme to be taken：A kind of decompression for D.C. contactor
Component, the D.C. contactor includes housing and stationary contact support, and the gas inside and outside housing is communicated with the stationary contact support
Hole, the pressure relief assembly is sealedly connected in the stomata, and the pressure relief assembly includes one way pressure-reducing valve and is located at the list
To the dust cap on pressure-reducing valve；In order to avoid the pollution of dust, make the center hole plug of pressure-reducing valve, influence antihypertensive effect and step-down
Speed, the outside of the one way pressure-reducing valve is also covered with dust cap.
The one way pressure-reducing valve includes valve core shell and the valve element, valve core case, valve element pad, O-shaped being arranged on inside valve core shell
Circle and spring, the valve element is placed in inside the valve core shell, and the O-ring (9-4) is sealedly connected on the upper of valve element and valve core shell
End, is connected inside the lower end of the valve element with the valve element pad, and the outside of the lower end of the valve element is arranged the valve core case, and institute
State valve core case bottom even and be provided with multiple through holes, the rebasing face of valve element is provided with raised correspondingly with the through hole, institute
Projection is plugged in the through hole, and the spring is set on the valve element between O-ring and valve core case, and the lower spring end with
The valve element connection, the valve core shell, valve core case form the unidirectional buck channel connected inside and outside housing with valve element.
The balance of housing inner and outer air pressure is realized using one way pressure-reducing valve, the security of D.C. contactor is improved.Exhaust end is adopted
Multiple through holes are used, the power that can be subject to valve element bottom is more balanced, meanwhile, it is capable to realize quick pressure releasing.
Further, in order to improve sealing between valve core case and valve element pad and react when pressure increases in housing
Sensitivity, the shaft section of the through hole is up big and down small pyramidal structure, and the raised shaft section is up big and down small taper
Structure, and the through hole matches with the raised size and shape.
Contacted by taper surface, ensure that good sealing when in projection insertion through hole, pressure increase internally
When needing pressure release, need to only move the displacement of very little can just be such that projection is exited from through hole, reduce the time that friction is present, and improve
The sensitivity of reaction.
Further, in order to improve sealing between valve core case and valve element pad and react when pressure increases in housing
Sensitivity, the shaft section of the through hole is up big and down small pyramidal structure, and the raised lower end is ball, the diameter of the ball
More than the diameter at the through hole smallest end, the ball is connected in the through hole.
Linear contact lay is formed using ball and conical through-hole, in the case of pressure identical, is acted on the contact surface of linear contact lay
Area is small, and the pressure of generation is big, makes better tightness, and when by enclosure interior pressure, ball easily departs from taper surface, carries
The sensitivity of reaction high.
Further, the center of the valve element is provided with the axially upper and lower centre bore of connection valve element, is set on the side wall of the valve element
There is the side opening connected with centre bore, the valve element pad is connected with the centre bore below the side opening, and the valve element lower end is plugged in
In the valve core case, and with the valve core case gap coordinate, the centre bore, the gap between side opening, valve core case and valve element with
And through hole forms buck channel.
Further, for the ease of the support of spring, the valve element below the side opening is provided with and outward extends flange, described
Lower spring end is connected with the flange.
Further, in order to avoid the pollution of dust, the center hole plug of pressure-reducing valve, influence antihypertensive effect and step-down speed are made
Degree, the outside of the one way pressure-reducing valve is also covered with dust cap.
During pressure release, when the increase of enclosure interior pressure, internal pressure is acted on the bottom surface of valve element pad by through hole, works as pressure
Increase to a certain extent, can be by valve element pad jack-up, and due to acting on for the support force by valve element pad, valve element is also moved upwards, is made
Valve core case is separated with valve element pad, so that the buck channel that through hole is formed with gap, side opening, centre bore successively is connected, makes inside
Pressure is discharged along buck channel.Valve element push the spring, makes spring be in compressive state simultaneously.
After pressure drops to certain value, because the elastic force by spring is acted on, valve element and valve element pad fall, valve element pad weight
Newly through hole is closed, through hole is disconnected the sealing inside realizing with buck channel.
The beneficial effects of the utility model are：A kind of pressure relief assembly for D.C. contactor that the utility model is provided,
One way pressure-reducing valve is installed at stomata, the safety that uses that pressure release ensures D.C. contactor is carried out by pressure-reducing valve, and using anti-
Dirt cap is protected one way pressure-reducing valve, it is to avoid pressure-reducing valve is blocked because of dust.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is the structural representation of the utility model embodiment one；
Fig. 2 is the enlarged diagram of C in Fig. 1；
Fig. 3 is the structural representation of the utility model embodiment two；
Fig. 4 is the enlarged diagram of D in Fig. 3.
In figure：4-1, stationary contact support, 8, dust cap, 9-1, valve element, 9-11, centre bore, 9-12, side opening are 9-13, convex
Edge, 9-2, valve core case, 9-21, through hole, 9-3, valve element pad, 9-31, projection, 9-32, ball, 9-4, O-ring, 9-5, spring, 9-
6th, valve core shell.
Specific embodiment
The utility model is described in detail presently in connection with accompanying drawing.This figure is simplified schematic diagram, only in a schematic way
Basic structure of the present utility model is illustrated, therefore it only shows the composition relevant with the utility model.
Embodiment one：
As shown in Figure 1-2, a kind of pressure relief assembly for D.C. contactor of the present utility model, the D.C. contactor bag
Housing and stationary contact support are included, the stomata inside and outside housing, the pressure relief assembly sealing are communicated with the stationary contact support 4-1
It is connected in the stomata, the pressure relief assembly includes one way pressure-reducing valve and the dust cap 8 being located on the one way pressure-reducing valve；
The one way pressure-reducing valve includes valve core shell 9-6 and the valve element 9-1, the valve core case 9- that are arranged on inside valve core shell 9-6
2nd, valve element pad 9-3, O-ring 9-4 and spring 9-5, the valve element 9-1 are placed in inside the valve core shell 9-6, and the O-ring 9-4 is close
Envelope is connected to the upper end of valve element 9-1 and valve core shell 9-6, is connected with the valve element pad 9-3 inside the lower end of the valve element 9-1, institute
The outside for stating the lower end of valve element 9-1 is arranged the valve core case 9-2, and the valve core case 9-2 bottom evens are provided with multiple through hole 9-
21, the valve element pad 9-3 bottom surfaces are provided with projection 9-31, projection 9-31 one-to-one with the through hole 9-21 and are plugged in institute
State in through hole 9-21, the spring 9-5 is set on the valve element 9-1 between O-ring 9-4 and valve core case 9-2, and the spring 9-
5 lower ends are connected with the valve element 9-1, and the valve core shell 9-6, valve core case 9-2 are formed with valve element 9-1 and connected unidirectional inside and outside housing
Buck channel.
The shaft section of the through hole 9-21 is up big and down small pyramidal structure, the shaft section of the raised 9-31 for it is upper it is big under
Small pyramidal structure, and the through hole 9-21 matches with the size and shape of the raised 9-31.
The center of the valve element 9-1 is provided with axially connection valve element 9-1 upper and lower centre bore 9-11, the side of the valve element 9-1
Wall is provided with the centre bore 9- below the side opening 9-12, the valve element pad 9-3 and the side opening 9-12 connected with centre bore 9-11
11 connections, the valve element 9-1 lower ends are plugged in the valve core case 9-2, and are coordinated with the valve core case 9-2 gaps, it is described in
Heart hole 9-11, the gap between side opening 9-12, valve core case 9-2 and valve element 9-1 and through hole 9-21 form buck channel.
Valve element 9-1 below the side opening 9-12 is provided with and outward extends flange 9-13, the spring 9-5 lower ends and institute
State flange 9-13 connections.
Embodiment two：
As shown in Figure 3-4, the difference of the present embodiment and embodiment one be pressure release through hole and raised structure not
Together, the shaft section of through hole 9-21 described in the present embodiment is up big and down small pyramidal structure, and the raised 9-31 lower ends are ball
9-32, the ball 9-32 with diameter greater than the diameter at the through hole 9-21 smallest ends, the ball 9-32 is connected to described
In through hole 9-21.It is plugged in through hole 9-21 by ball 9-32 and realizes sealing.
With above-mentioned according to desirable embodiment of the present utility model as enlightenment, by above-mentioned description, related work
Personnel can carry out various changes and amendments in the range of without departing from the utility model completely.This utility model
Technical scope is not limited to the content on specification, it is necessary to its technical scope is determined according to right.
Claims (5)
1. a kind of pressure relief assembly for D.C. contactor, it is characterised in that：The D.C. contactor includes housing and stationary contact
Support, is communicated with the stomata inside and outside housing on the stationary contact support (4-1), the pressure relief assembly is sealedly connected on the gas
In hole, the pressure relief assembly includes one way pressure-reducing valve and the dust cap (8) being located on the one way pressure-reducing valve；
The one way pressure-reducing valve includes valve core shell (9-6) and is arranged on valve core shell (9-6) internal valve element (9-1), valve core case
(9-2), valve element pad (9-3), O-ring (9-4) and spring (9-5), the valve element (9-1) are placed in the valve core shell (9-6) inside,
The O-ring (9-4) is sealedly connected on the upper end of valve element (9-1) and valve core shell (9-6), inside the lower end of the valve element (9-1)
It is connected with the valve element pad (9-3), the outside of the lower end of the valve element (9-1) is arranged the valve core case (9-2), and the valve element
Seat (9-2) bottom even is provided with multiple through holes (9-21), and valve element pad (9-3) bottom surface is provided with and the through hole (9-21)
One corresponding projection (9-31), institute raised (9-31) is plugged in the through hole (9-21), and the spring (9-5) is set in O-shaped
On valve element (9-1) between circle (9-4) and valve core case (9-2), and the spring (9-5) lower end is connected with the valve element (9-1),
The valve core shell (9-6), valve core case (9-2) and valve element (9-1) form the unidirectional buck channel connected inside and outside housing.
2. the pressure relief assembly of D.C. contactor is used for as claimed in claim 1, it is characterised in that：The axle of the through hole (9-21)
Section is up big and down small pyramidal structure, and the shaft section of the projection (9-31) is up big and down small pyramidal structure, and described logical
Hole (9-21) matches with the size and shape of the projection (9-31).
3. the pressure relief assembly of D.C. contactor is used for as claimed in claim 1, it is characterised in that：The axle of the through hole (9-21)
Section is up big and down small pyramidal structure, and described projection (9-31) lower end is ball (9-32), the diameter of the ball (9-32)
More than the diameter at the through hole (9-21) smallest end, the ball (9-32) is connected in the through hole (9-21).
4. the pressure relief assembly of D.C. contactor is used for as claimed in claim 2 or claim 3, it is characterised in that：The valve element (9-1)
Center is provided with the axially upper and lower centre bore (9-11) of connection valve element (9-1), and the side wall of the valve element (9-1) is provided with and centre bore
The side opening (9-12) of (9-11) connection, the valve element pad (9-3) is connected with the centre bore (9-11) below the side opening (9-12),
Valve element (9-1) lower end is plugged in the valve core case (9-2), and is coordinated with the valve core case (9-2) gap, the center
It is logical that gap and through hole (9-21) between hole (9-11), side opening (9-12), valve core case (9-2) and valve element (9-1) form step-down
Road.
5. the pressure relief assembly of D.C. contactor is used for as claimed in claim 4, it is characterised in that：Side opening (9-12) lower section
Valve element (9-1) be provided with and outward extend flange (9-13), spring (9-5) lower end is connected with the flange (9-13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621491190.2U CN206301741U (en) | 2016-12-30 | 2016-12-30 | A kind of pressure relief assembly for D.C. contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621491190.2U CN206301741U (en) | 2016-12-30 | 2016-12-30 | A kind of pressure relief assembly for D.C. contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206301741U true CN206301741U (en) | 2017-07-04 |
Family
ID=59205408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621491190.2U Expired - Fee Related CN206301741U (en) | 2016-12-30 | 2016-12-30 | A kind of pressure relief assembly for D.C. contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206301741U (en) |
-
2016
- 2016-12-30 CN CN201621491190.2U patent/CN206301741U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170704 Termination date: 20211230 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |