CN107887184A - Earthed switch contact - Google Patents
Earthed switch contact Download PDFInfo
- Publication number
- CN107887184A CN107887184A CN201711181187.XA CN201711181187A CN107887184A CN 107887184 A CN107887184 A CN 107887184A CN 201711181187 A CN201711181187 A CN 201711181187A CN 107887184 A CN107887184 A CN 107887184A
- Authority
- CN
- China
- Prior art keywords
- contact
- cup
- guide
- resistance
- electric arc
- 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.)
- Pending
Links
- 230000003068 static effect Effects 0.000 claims abstract description 64
- 238000010891 electric arc Methods 0.000 claims abstract description 49
- 239000004020 conductor Substances 0.000 claims abstract description 43
- 239000000956 alloy Substances 0.000 claims abstract description 42
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 42
- 239000000872 buffer Substances 0.000 claims abstract description 30
- 230000000694 effects Effects 0.000 claims abstract description 10
- 238000009413 insulation Methods 0.000 claims abstract description 9
- 125000006850 spacer group Chemical group 0.000 claims abstract description 9
- 241000469816 Varus Species 0.000 claims description 3
- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 11
- 238000010586 diagram Methods 0.000 description 9
- 230000003139 buffering effect Effects 0.000 description 5
- 230000005684 electric field Effects 0.000 description 5
- 238000004146 energy storage Methods 0.000 description 5
- 238000002679 ablation Methods 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000012536 storage buffer Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
- H01H1/24—Contacts characterised by the manner in which co-operating contacts engage by abutting with resilient mounting
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
- H01H1/44—Contacts characterised by the manner in which co-operating contacts engage by sliding with resilient mounting
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
- H01H1/502—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position the action of the contact pressure spring becoming active only after engagement of the contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/64—Protective enclosures, baffle plates, or screens for contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/023—Base and stationary contacts mounted thereon
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/026—Movable parts and contacts mounted thereon
-
- 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
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/38—Auxiliary contacts on to which the arc is transferred from the main contacts
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention discloses a kind of earthed switch contact；It is socketed in including the touch spring described in static contact conductor, protected type static contact, touch spring, quiet striking contact, guide, guide pad, buffer spring, insulation spacer, moving contact of grounding switch, movable contact block on the mesopore outer wall of protected type static contact, guide and quiet striking contact are nested with the inner chamber of protected type static contact, buffer spring is socketed in the outer end of guide rod, the both ends of buffer spring are acted against on the spring stop bit step of cup-shaped conductor inwall and guide respectively, and insulation spacer is provided between buffer spring and cup-shaped conductor inwall；Described contact rod activity is nested with movable contact block, and the moving contact alloy of resistance to electric arc on contact rod can be with the quiet striking contact alloy of resistance to electric arc on cup-shaped conductor against realizing the combined floodgate of switch.Because the electrical contact of the present invention is the front face for the end face and moving contact of grounding switch for using quiet striking contact, contact is more reliable.
Description
Technical field
The present invention relates to a kind of high-tension switch gear, more particularly to a kind of earthed switch contact.
Background technology
Earthed switch belongs to one kind of disconnecting switch, is mainly used in the work of circuit ground part.As shown in Figure 1A, it is existing
Earthed switch contact mainly by fixed contact pedestal 1 ', the radome 2 ' with the alloy of resistance to electric arc, the Mume flower contact with the alloy of resistance to electric arc
3 ', movable contact block 4 ', moving contact 5 ' with the alloy of resistance to electric arc form, and the inner of the radome 2 ' with the alloy of resistance to electric arc is fixed on quiet
On contact base 1 ', the inner of the Mume flower contact 3 ' with the alloy of resistance to electric arc is fixed on fixed contact pedestal 1 ' and is nested with radome 2 '
Inner chamber, the activity of moving contact 5 ' with the alloy of resistance to electric arc is nested with movable contact block 4 ' and moving contact 5 ' can be inserted into radome 2 ' and plum
Flower contact 3 ' contacts.This traditional earthed switch contact, contact of the moving contact 5 ' with static contact, mainly by moving contact 5 '
Lateral surface contacts with the medial surface of Mume flower contact 3 ', forms electrical connection, the reliability of electrical contact is poor, complicated, moving contact
Do not buffered during combined floodgate, impulsive force is larger, influences the mechanical life of product.
The content of the invention
It is an object of the invention to provide one kind to make electrical contact with reliable earthed switch contact.
To achieve the above object, technical solution of the invention is：
The present invention is a kind of earthed switch contact；Including static contact conductor, protected type static contact, touch spring, quiet striking contact,
Guide, guide pad, buffer spring, insulation spacer, moving contact of grounding switch, movable contact block；
Described quiet striking contact includes cup-shaped conductor, guide rod, the quiet striking contact alloy of resistance to electric arc；The outer end end of described guide rod
The inner of cup-shaped conductor is fixed on, the quiet striking contact alloy of resistance to electric arc is fixed with the outer face of cup-shaped conductor；Described connects
Ground switch movable contact includes contact rod and the moving contact alloy of resistance to electric arc, and the moving contact alloy of resistance to electric arc is fixed on the outer face of contact rod
On；
The inner of described protected type static contact is fixedly mounted on the outer face of static contact conductor, the outer end of protected type static contact
Mediad in-flanges, a mesopore connected with inner chamber being formed, touch spring is socketed on the mesopore outer wall of protected type static contact,
For providing radial pressure；The inner of described guide is fixed on the outer face of static contact conductor and is nested with protected type stationary contact
The inner chamber of head, guide pad are fixed on the inner of guide rod, and the inner of guide rod is nested with the pilot hole of guide by guide pad activity,
Cup-shaped conductor activity is nested with the mesopore inwall of protected type static contact；
Described buffer spring is socketed in the outer end of guide rod, and the both ends of buffer spring act against cup-shaped conductor inwall and guide respectively
Spring stop bit step on, insulation spacer is provided between buffer spring and cup-shaped conductor inwall；Described contact rod movable sleeve
Put in movable contact block, the outside dimension of contact rod is corresponding to the mesopore internal diameter size of protected type static contact, dynamic on contact rod
The contact alloy of resistance to electric arc can be with the quiet striking contact alloy of resistance to electric arc on cup-shaped conductor against realizing the combined floodgate of switch.
Present invention additionally comprises cushion pad, the cushion pad is fixed on the outer face of the cup-shaped conductor in quiet striking contact, is delayed
Punching pad sets around the quiet striking contact alloy of resistance to electric arc and is higher than the quiet striking contact alloy of resistance to electric arc.
Described protected type static contact is thin-walled cylindrical member, and its outside end center is inverted to form one and connected with inner chamber
Mesopore and outer face be in flap, mesopore forms along circular arc and slides electric interface, and it, which is slided on electric interface, has one section of straight section to lead
Electric face contacts to be formed and electrically connected for the cup-shaped conductor of quiet striking contact with the contact rod of moving contact of grounding switch, straight section conducting surface
End have one section of varus arc surface, for moving contact of grounding switch enter straight section conducting surface before guiding, in straight section conducting surface
Inner side be provided with touch spring, the touch spring is abutted against on straight section conducting surface, there is provided radial pressure.
After such scheme, the present invention include static contact conductor, protected type static contact, touch spring, quiet striking contact,
Guide, guide pad, buffer spring, insulation spacer, moving contact of grounding switch, movable contact block, during combined floodgate, the ground connection quickly moved is opened
Moving contact is closed with quiet striking contact and buffer spring is compressed by quiet striking contact, buffer spring produces reaction force, and
Moving contact of grounding switch is acted on by quiet striking contact, slows down the movement velocity of moving contact of grounding switch, until dynamic touch is closed a floodgate
In place, because the electrical contact of the present invention is the front face for the end face and moving contact of grounding switch for using quiet striking contact, contact
It is more reliable.In addition, the present invention is provided with buffer spring and possesses striking function, buffer spring buffering earthed switch when closing a floodgate moves
The impulsive force of contact, and energy storage, power-assisted moving contact moves energy reserve when being separating brake, and this design of the invention has following three
Individual function：1. buffering contact combined floodgate impulsive force, equipment damage caused by impact is reduced；2. the motion of power-assisted separating brake moving contact, is carried
High movement velocity；3. striking.
The present invention is further illustrated with specific embodiment below in conjunction with the accompanying drawings.
Brief description of the drawings
Figure 1A is the sectional view of existing earthed switch contact；
Fig. 1 is the gate-dividing state figure of the present invention；
Fig. 2 is the first stage schematic diagram of making process of the present invention；
Fig. 3 is the second stage schematic diagram of making process of the present invention；
Fig. 4 is the phase III schematic diagram of making process of the present invention；
Fig. 5 is the "on" position figure of the present invention；
Fig. 6 is the first stage schematic diagram of separating brake process of the present invention；
Fig. 7 is the second stage schematic diagram of separating brake process of the present invention；
Fig. 8 is the phase III schematic diagram of separating brake process of the present invention；
Fig. 9 is the fourth stage schematic diagram of separating brake process of the present invention；
Figure 10 is the schematic diagram of protected type static contact of the present invention；
Figure 11 be Figure 10 along A to schematic diagram.
Embodiment
As shown in Figure 1, shown in Figure 5, the present invention is a kind of earthed switch contact；Including static contact conductor 1, protected type static contact
2nd, touch spring 3, quiet striking contact 4, guide 5, guide pad 6, buffer spring 7, insulation spacer 8, moving contact of grounding switch 9, dynamic
Contact base 10, cushion pad 20.
Described quiet striking contact 4 includes cup-shaped conductor 41, guide rod 42, the quiet striking contact alloy of resistance to electric arc 43；Described
The outer end end of guide rod 42 is fixed on the inner of cup-shaped conductor 41, and it is resistance to that quiet striking contact is fixed with the outer face of cup-shaped conductor 41
Electric arc alloy 43.
Described moving contact of grounding switch 9 includes contact rod 91 and the moving contact alloy of resistance to electric arc 92；The resistance to electric arc of moving contact closes
Gold 92 is fixed on the outer face of contact rod 91.
With reference to shown in figure 10, Figure 11, described protected type static contact 2 is thin-walled cylindrical member, in its outside end center
It is in flap to turn over and to form a mesopore connected with inner chamber 21 and outer face, and the flap passes through in the outer face of protected type static contact 2
Opening 24 is opened up, mesopore 21 forms along circular arc and slides electric interface, and it, which is slided on electric interface, has one section of straight section conducting surface 22 to use
Formation is contacted in the cup-shaped conductor 41 of quiet striking contact 4 with the contact rod 91 of moving contact of grounding switch 9 to electrically connect, straight section conducting surface
There is one section of varus arc surface 23 22 end, the guiding entered for moving contact of grounding switch 9 before straight section conducting surface 22, in straight section
The inner side of conducting surface 22 is provided with touch spring 3, and the touch spring 3 is abutted against on straight section conducting surface 22, there is provided radial pressure；As
The 2 inner end of protected type static contact in conductive attachment face is fixed on the outer face of static contact conductor 1.
The inner of described guide 5 is fixed on the outer face of static contact conductor 1 and is nested with protected type static contact 2
Chamber, guide pad 6 are fixed on the inner of guide rod 42, and the inner of guide rod 42 is nested with the pilot hole 51 in guide 5 by the activity of guide pad 6
Interior, the activity of cup-shaped conductor 41 is nested with the inwall of mesopore 21 of protected type static contact 2；Described buffer spring 7 is socketed in guide rod
42 outer end, the both ends of buffer spring 7 act against on the spring stop bit step 52 of the inwall of cup-shaped conductor 41 and guide 5 respectively,
Insulation spacer 8 is provided between buffer spring 7 and the inwall of cup-shaped conductor 41；The described activity of contact rod 91 is nested with movable contact block 10
Interior, the outside dimension of contact rod 91 is corresponding to the internal diameter size of mesopore 21 of protected type static contact 2, and the moving contact on contact rod 91 is resistance to
Electric arc alloy 92 can be with the quiet striking contact alloy of resistance to electric arc 43 on cup-shaped conductor 41 against realizing the combined floodgate of switch.
Described cushion pad 20 is fixed on the outer face of the cup-shaped conductor 41 in quiet striking contact 4, and cushion pad 20 is surround
The quiet striking contact alloy of resistance to electric arc 43 sets and is higher than the quiet striking contact alloy of resistance to electric arc 43.
The design of the profile of the present invention is according to the pattern of electric field shielding cover, but the slip electric interface of contact is processed to valve
Shape forms self-reliance fingertip, it is contemplated that gap is less than 5mm between electric field shielding effect valve.Its active set in earthed switch suffers
Both conductive static contact and electric field shielding covers are integrated.Slide electric interface pressure and on the one hand derive from the valve of protected type static contact 2
Shape fingertip is on the other hand that touch spring 3 provides radial pressure, there is provided auxiliary is touched because of elastic deformation power caused by deformation itself
Finger pressure, improve the reliability of conductive contact.
The action process of the present invention：
As shown in figure 1, the gate-dividing state of earthed switch；
As shown in Fig. 2 earthed switch starts to close a floodgate, moving contact of grounding switch 9 stretches out movable contact block 10；
As shown in figure 3, earthed switch closes a floodgate during carrying out, moving contact of grounding switch 9 starts to contact with quiet striking contact 4, and
Buffer spring 7 is compressed, buffers the impact of moving contact of grounding switch 9.
As shown in figure 4, earthed switch closes a floodgate during carrying out, transition status is made electrical contact with, is drawn by protected type static contact 2- is quiet
Arcing contact 4- moving contact of grounding switch 9- movable contact blocks 10, be converted to protected type static contact 2- moving contact of grounding switch 9- moving contacts
Seat 10.
As shown in figure 5, earthed switch "on" position（Moving contact of grounding switch 9 moves in place, completes to close a floodgate）.
As shown in fig. 6, during grounding switch tripping is carried out, transition status is made electrical contact with, is grounded by protected type static contact 2-
Switch movable contact 9- movable contact blocks 10, be converted to the quiet striking contact 4- moving contact of grounding switch 9- moving contacts of protected type static contact 2-
Seat 10.
As shown in fig. 7, during grounding switch tripping is carried out, moving contact of grounding switch 9 will take off with quiet striking contact 4
From.In this process, buffer spring 7 produces thrust by quiet striking contact 4 to moving contact of grounding switch 9, aids in its acceleration,
Improve it and cut-off faradic performance ensuing.
As shown in figure 8, the moving contact of grounding switch 9 of earthed switch cut-offs induced-current shape after being separated with quiet striking contact 4
State, electric arc burn between the quiet striking contact alloy of resistance to electric arc 43 and the moving contact of grounding switch alloy of resistance to electric arc 92, avoid ablation
Other first-class parts of protected type stationary contact.
As shown in figure 9, earthed switch closes short circuit current state, electric arc is in moving contact of grounding switch 9 and quiet striking contact 4
Between burn, avoid other first-class parts of ablation protected type stationary contact.
As shown in Fig. 1-Fig. 9, operation principle of the invention：
1st, during gate-dividing state, quiet striking contact 4 is contacted in the presence of buffer spring 7 with protected type static contact 2, and realization is electrically led
It is logical, and the quiet striking contact alloy of resistance to electric arc is slightly above protected type static contact 2, after moving contact of grounding switch stretches out movable contact block 10,
Electric field is concentrated on quiet the striking contact alloy of resistance to electric arc and the moving contact alloy of resistance to electric arc between the dynamic and static contact of earthed switch（Referring to figure
1）.
When earthed switch closes a floodgate, moving contact of grounding switch 9 first contacts with quiet striking contact 4, and presses the contracting bullet of buffer spring 7
Spring, the quiet motion of striking contact 4 is then promoted until quiet striking contact 4 departs from the contact with protected type static contact 2, and earthed switch
Moving contact 9 contacts with protected type static contact 2, realizes the electrically conducting of dynamic/static contact, and earthed switch, which is realized, to close a floodgate.This process
In, before moving contact of grounding switch 9 contacts with protected type static contact 2, quiet striking contact 4 remains and protected type static contact 2
Contact, electrically conducting（Electrical contact）Path is：By the quiet striking contact 4-- moving contact of grounding switch of protected type static contact 2-- --
Movable contact block；Electricity-led path is converted to protected type static contact after moving contact of grounding switch 9 contacts with protected type static contact 2
2-- moving contact of grounding switch -- movable contact block, prevent arc erosion protected type static contact 2.In making process, moved from earthed switch
When contact 9 contacts with quiet striking contact 4, the thrust moving contact of grounding switch 9 just compresses buffering elastic by quiet striking contact 4
Spring 7, produces the elliptical gear of deboost buffering moving contact of grounding switch 9, and is connect in the stroke foot couple of moving contact of grounding switch 9
Ground switch movable contact produces maximum thrust, the motion of power-assisted moving contact of grounding switch 9 deposit energy when the energy storage of buffer spring 7 is separating brake
Amount.
During grounding switch tripping, moving contact of grounding switch moves in the presence of operating mechanism, and quiet striking contact 4 is buffering
Spring 7（Energy storage during "on" position）As moving contact of grounding switch 9 moves in the presence of power, and to moving contact of grounding switch 9
Thrust is produced, aids in it to be moved to separating brake direction, when moving contact of grounding switch 9 starts to depart from protected type static contact 2, quiet striking is touched
First 4 contact with protected type static contact 2, and electrically conducting (electrical contact) path is by protected type static contact 2-- moving contact of grounding switch --
Movable contact block, be converted to the quiet striking contact 4-- moving contact of grounding switch of protected type static contact 2-- -- movable contact block.Earthed switch
Moving contact 9 continues to move, and the guide pad 6 being assemblied on quiet striking contact 4 is fixed on the static contact conductor of protected type static contact 2
On guide 5 spacing, stop motion, moving contact of grounding switch 9 departs from quiet striking contact 4, and moving contact of grounding switch 9 continues
Motion is until separating brake is completed.
2nd, during "on" position, the moving contact of grounding switch quickly moved is contacted with quiet striking contact 4 and touched by quiet striking
First 4 compression buffer spring 7, buffer spring 7 produces reaction force, and acts on moving contact of grounding switch by quiet striking contact 4
9, slow down the movement velocity of moving contact of grounding switch, until dynamic tactile in-place closing, the energy storage of buffer spring 7.During separating brake, energy storage
Buffer spring 7 promotes quiet striking contact 4 to move, and produces thrust to moving contact of grounding switch 9 by quiet striking contact 4, accelerates
The separating brake motion of moving contact of grounding switch 9, the sub-switching operation of power-assisted moving contact of grounding switch 9, until being fixed on quiet striking contact 4
Guide pad 6 contacted with the motion stop bit step of guide 5, and be limited, the quiet stop motion of striking contact 4.Quiet striking contact 4
End is designed with the quiet striking contact alloy of resistance to electric arc and the quiet resistance to electric arc of striking contact closes before moving contact of grounding switch 9 is in contact with it
Gold is slightly above protected type static contact 2, and electric field concentrates on the quiet striking contact alloy of resistance to electric arc and closed with the resistance to electric arc of moving contact of grounding switch
No matter Jin Shang, close short circuit current or opening and closing induction current, and electric arc is always limited in the quiet striking contact alloy of resistance to electric arc and connect
Between the ground switch movable contact alloy of resistance to electric arc, cushion pad 20 is arranged in around the quiet striking contact alloy of resistance to electric arc and slightly above quiet
The striking contact alloy of resistance to electric arc, ablation protected type static contact 2, is achieved in that electric arc is limited in cushion pad when avoiding arc burning
In the range of 20 inner rings（Referring to Fig. 8, Fig. 9）.
It is described above, only present pre-ferred embodiments, therefore the scope that the present invention is implemented can not be limited with this, i.e., according to
The equivalent changes and modifications that scope of the present invention patent and description are made, it all should still belong to the model that patent of the present invention covers
In enclosing.
Claims (3)
- A kind of 1. earthed switch contact；It is characterized in that：Including static contact conductor, protected type static contact, touch spring, quiet striking Contact, guide, guide pad, buffer spring, insulation spacer, moving contact of grounding switch, movable contact block；Described quiet striking contact includes cup-shaped conductor, guide rod, the quiet striking contact alloy of resistance to electric arc；The outer end end of described guide rod The inner of cup-shaped conductor is fixed on, the quiet striking contact alloy of resistance to electric arc is fixed with the outer face of cup-shaped conductor；Described connects Ground switch movable contact includes contact rod and the moving contact alloy of resistance to electric arc, and the moving contact alloy of resistance to electric arc is fixed on the outer face of contact rod On；The inner of described protected type static contact is fixedly mounted on the outer face of static contact conductor, the outer end of protected type static contact Mediad in-flanges, a mesopore connected with inner chamber being formed, touch spring is socketed on the mesopore outer wall of protected type static contact, For providing radial pressure；The inner of described guide is fixed on the outer face of static contact conductor and is nested with protected type stationary contact The inner chamber of head, guide pad are fixed on the inner of guide rod, and the inner of guide rod is nested with the pilot hole of guide by guide pad activity, Cup-shaped conductor activity is nested with the mesopore inwall of protected type static contact；Described buffer spring is socketed in the outer end of guide rod, and the both ends of buffer spring act against cup-shaped conductor inwall and guide respectively Spring stop bit step on, insulation spacer is provided between buffer spring and cup-shaped conductor inwall；Described contact rod movable sleeve Put in movable contact block, the outside dimension of contact rod is corresponding to the mesopore internal diameter size of protected type static contact, dynamic on contact rod The contact alloy of resistance to electric arc can be with the quiet striking contact alloy of resistance to electric arc on cup-shaped conductor against realizing the electrical contact of switch.
- 2. earthed switch contact according to claim 1, it is characterised in that：Also include cushion pad, the cushion pad is fixed on On the outer face of cup-shaped conductor in quiet striking contact, cushion pad sets around the quiet striking contact alloy of resistance to electric arc and drawn higher than quiet The arcing contact alloy of resistance to electric arc.
- 3. earthed switch contact according to claim 1, it is characterised in that：Described protected type static contact is thin-walled tubular Component, it is in flap that its outside end center, which is inverted to form a mesopore connected with inner chamber and outer face, and mesopore is formed along circular arc Electric interface is slided, it slides the cup-shaped conductor for having one section of straight section conducting surface to be used for quiet striking contact on electric interface and opened with ground connection The contact rod of pass moving contact, which contacts to be formed, to be electrically connected, and there is one section of varus arc surface the end of straight section conducting surface, for cup-shaped conductor Guiding into before straight section conducting surface, touch spring is provided with the inner side of straight section conducting surface, the touch spring abuts against straight section and led On electric face, there is provided radial pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711181187.XA CN107887184A (en) | 2017-11-23 | 2017-11-23 | Earthed switch contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711181187.XA CN107887184A (en) | 2017-11-23 | 2017-11-23 | Earthed switch contact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107887184A true CN107887184A (en) | 2018-04-06 |
Family
ID=61774718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711181187.XA Pending CN107887184A (en) | 2017-11-23 | 2017-11-23 | Earthed switch contact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107887184A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109346368A (en) * | 2018-11-28 | 2019-02-15 | 许继（厦门）智能电力设备股份有限公司 | A kind of structure of contact terminal of guillotine type disconnecting switch |
| CN110544597A (en) * | 2019-09-30 | 2019-12-06 | 山东泰开高压开关有限公司 | auxiliary arc extinguishing device for 800kV external grounding switch and use method |
| CN110993390A (en) * | 2019-11-22 | 2020-04-10 | 许继（厦门）智能电力设备股份有限公司 | Switch structure with switching-on and switching-off assisting and buffering functions |
| CN111105951A (en) * | 2018-10-29 | 2020-05-05 | 平高集团有限公司 | High-voltage switch and resistance static contact thereof |
| CN111161964A (en) * | 2019-12-31 | 2020-05-15 | 平高集团有限公司 | Static contact and high-voltage switch |
| CN111863507A (en) * | 2020-06-18 | 2020-10-30 | 平高集团有限公司 | Contact and fracture structure for high-speed mechanical switch |
| CN112510312A (en) * | 2020-11-09 | 2021-03-16 | 东风汽车集团有限公司 | Power battery box of electric vehicle |
| CN113205983A (en) * | 2021-04-26 | 2021-08-03 | 清华大学 | Quick mechanical switch flat contact with arc striking device |
| CN113921298A (en) * | 2021-09-03 | 2022-01-11 | 平高集团有限公司 | Resistance contact and circuit breaker using same |
| CN114284098A (en) * | 2022-01-14 | 2022-04-05 | 山东泰开高压开关有限公司 | Three-station isolation grounding switch based on single-crank double-slider and drive plate mechanism |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200406796Y1 (en) * | 2005-10-24 | 2006-01-24 | 엘에스산전 주식회사 | Disconnector for gas insulated switchgear |
| KR200413970Y1 (en) * | 2005-12-29 | 2006-04-14 | 엘에스산전 주식회사 | Pole insulation guide of disconnector and earthing switch of gas insulated switchgear |
| CN102306559A (en) * | 2011-09-02 | 2012-01-04 | 平高集团有限公司 | Movable and static contact connection assembly and high-voltage isolation grounding switch |
| CN203631404U (en) * | 2013-10-09 | 2014-06-04 | 中国西电电气股份有限公司 | Isolation switch having arc ignition function |
| CN105977094A (en) * | 2016-07-14 | 2016-09-28 | 许继集团有限公司 | Bounce-free plug-in type vacuum arc-extinguishing chamber |
| CN207602418U (en) * | 2017-11-23 | 2018-07-10 | 许继（厦门）智能电力设备股份有限公司 | Earthing switch contact |
-
2017
- 2017-11-23 CN CN201711181187.XA patent/CN107887184A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200406796Y1 (en) * | 2005-10-24 | 2006-01-24 | 엘에스산전 주식회사 | Disconnector for gas insulated switchgear |
| KR200413970Y1 (en) * | 2005-12-29 | 2006-04-14 | 엘에스산전 주식회사 | Pole insulation guide of disconnector and earthing switch of gas insulated switchgear |
| CN102306559A (en) * | 2011-09-02 | 2012-01-04 | 平高集团有限公司 | Movable and static contact connection assembly and high-voltage isolation grounding switch |
| CN203631404U (en) * | 2013-10-09 | 2014-06-04 | 中国西电电气股份有限公司 | Isolation switch having arc ignition function |
| CN105977094A (en) * | 2016-07-14 | 2016-09-28 | 许继集团有限公司 | Bounce-free plug-in type vacuum arc-extinguishing chamber |
| CN207602418U (en) * | 2017-11-23 | 2018-07-10 | 许继（厦门）智能电力设备股份有限公司 | Earthing switch contact |
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| CN111105951B (en) * | 2018-10-29 | 2022-07-05 | 平高集团有限公司 | High-voltage switch and resistance static contact thereof |
| CN109346368A (en) * | 2018-11-28 | 2019-02-15 | 许继（厦门）智能电力设备股份有限公司 | A kind of structure of contact terminal of guillotine type disconnecting switch |
| CN110544597A (en) * | 2019-09-30 | 2019-12-06 | 山东泰开高压开关有限公司 | auxiliary arc extinguishing device for 800kV external grounding switch and use method |
| CN110993390A (en) * | 2019-11-22 | 2020-04-10 | 许继（厦门）智能电力设备股份有限公司 | Switch structure with switching-on and switching-off assisting and buffering functions |
| CN111161964B (en) * | 2019-12-31 | 2022-06-07 | 平高集团有限公司 | Static contact and high-voltage switch |
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| CN111863507A (en) * | 2020-06-18 | 2020-10-30 | 平高集团有限公司 | Contact and fracture structure for high-speed mechanical switch |
| CN112510312A (en) * | 2020-11-09 | 2021-03-16 | 东风汽车集团有限公司 | Power battery box of electric vehicle |
| CN113205983A (en) * | 2021-04-26 | 2021-08-03 | 清华大学 | Quick mechanical switch flat contact with arc striking device |
| CN113205983B (en) * | 2021-04-26 | 2022-07-08 | 清华大学 | Quick mechanical switch flat contact with arc striking device |
| CN113921298A (en) * | 2021-09-03 | 2022-01-11 | 平高集团有限公司 | Resistance contact and circuit breaker using same |
| CN113921298B (en) * | 2021-09-03 | 2023-09-29 | 平高集团有限公司 | Resistor contact and breaker using same |
| CN114284098A (en) * | 2022-01-14 | 2022-04-05 | 山东泰开高压开关有限公司 | Three-station isolation grounding switch based on single-crank double-slider and drive plate mechanism |
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