CN106783295B - Contact-fuse combined electric appliance and its contact arm - Google Patents
Contact-fuse combined electric appliance and its contact arm Download PDFInfo
- Publication number
- CN106783295B CN106783295B CN201611169847.8A CN201611169847A CN106783295B CN 106783295 B CN106783295 B CN 106783295B CN 201611169847 A CN201611169847 A CN 201611169847A CN 106783295 B CN106783295 B CN 106783295B
- Authority
- CN
- China
- Prior art keywords
- contact arm
- arc
- chutes
- connecting pin
- rotation stop
- 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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Links
- 230000002093 peripheral effect Effects 0.000 claims abstract description 13
- 238000010276 construction Methods 0.000 claims description 18
- 239000000463 material Substances 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H89/00—Combinations of two or more different basic types of electric switches, relays, selectors and emergency protective devices, not covered by any single one of the other main groups of this subclass
Landscapes
- Fuses (AREA)
Abstract
The present invention relates to contact-fuse combined electric appliance and its contact arms.Contact-fuse combined electric appliance includes fuse, arc-chutes and the contact arm connecting with arc-chutes, the contact arm has the arc-chutes connecting pin connecting with arc-chutes, the outer peripheral surface of the arc-chutes connecting pin is equipped with the holding tank being radially embedded in for the head of bolt or nut, the end face of the arc-chutes connecting pin is equipped with the axial passage communicated with the holding tank, the screw rod that the axial passage supplies the bar portion of the bolt or is adapted to the nut passes through, and the contact arm and the bolt or nut cooperate by the spline structure rotation stop being arranged on contact arm.In this way, the head of nut or bolt can be embedded in holding tank and cooperate with contact arm rotation stop, so as to drive nut or bolt to rotate by rotation contact arm, realize the fixation with arc-chutes, guarantee that contact arm meets temperature increase requirement and through-flow requirement, it is convenient for disassembly and assembly, be conducive to improve assembly efficiency.
Description
Technical field
The present invention relates to contact-fuse combined electric appliance and its contact arms.
Background technique
Contactor has for relatively frequently connecting and disjunction high-current circuit and is swift in motion, is easy to operate and be convenient for
The characteristics of far distance control, often makes with fuse cooperation since itself does not have open circuit protection and overload protection ability
With formation contact-fuse combined electric appliance.Contact-fuse combined electric appliance is generally handcart form, such as Granted publication
A kind of vacuum contactor and vacuum contactor-fuse combined electric appliance disclosed in Chinese patent number for 203721616 U of CN,
Exist including chassis vehicle, fixed operating mechanism box on a chassis, the contactor part being mounted in operating mechanism box and setting
The fuse part of contactor upper, wherein contactor part includes arc-chutes and is bolted on the quiet of arc-chutes
First conductive arm at end, fuse part include the second conductive arm of fuse with the corresponding end that fuse is arranged in, and first leads
Electric arm forms the first contact arm connecting for the lower stationary contact arm with switchgear, and the axial ends of the first contact arm is respectively that switchgear connects
Connect end and arc-chutes connecting pin；Second conductive arm forms the second contact arm connecting for the upper stationary contact arm with switchgear, the second touching
The axial ends of arm is respectively switchgear connecting pin and fuse connecting pin.
Handcart form used by existing contact-fuse combined electric appliance is similar with circuit breaker cart, breaker hand
Contact arm on vehicle is in order to meet high voltage, high current requires most of to be fine copper material, and the contact arm axle center connecting with arc-chutes is set
There is a through-hole, when assembly is fixed on the end face of arc-chutes using bolt and corresponding tool for unscrewing/screwing bolt, and the material cost of copper
It is higher, if the contact arm on contactor-fuse products chassis vehicle can substantially reduce contact using aluminium material
Device-fuse combined electric apparatus cost.However, to ensure that contact arm meets temperature increase requirement and through-flow requirement, contact arm after more conversion materials
Axle center through-hole cannot be set, thus can not be directly connect with arc-chutes by bolt.In addition, due to the axial ruler of contact arm
It is very little larger, through-hole is set on contact arm and needs to screw work using very long bolt by the fixed structure of bolt and arc-chutes
Tool, dismounting is inconvenient, and assembly efficiency is low.
Summary of the invention
The object of the present invention is to provide a kind of contact-fuse combined electric appliance and its contact arms, to solve using existing
The problem of can not being installed when the not set through-hole of contact arm.
To achieve the above object, in the present invention the technical solution adopted is that: contact-fuse combined electric appliance, including molten
Disconnected device, arc-chutes and the contact arm connecting with arc-chutes, the contact arm has the arc-chutes connecting pin connecting with arc-chutes, described to go out
The outer peripheral surface of arc chamber connecting pin is equipped with the holding tank being radially embedded in for the head of bolt or nut, the arc-chutes connecting pin
End face be equipped with the axial passage that communicates with the holding tank, the axial passage for the bolt bar portion or with it is described
The screw rod of nut adaptation passes through, and the contact arm and the bolt or nut cooperate by the spline structure rotation stop being arranged on contact arm.
The holding tank is formed by rotation stop section and positioned at the axially external gasket construction section of the rotation stop section, the bolt
Head or nut be located in rotation stop section, the spline structure is arranged in rotation stop section, and gasket is equipped in the gasket construction section.
Contact arm in the radial direction, the size of the gasket construction section is greater than the size of rotation stop section and forms holding tank
T-shaped structure, the spline structure are formed by the inner wall of rotation stop section, and the axial passage is the end that arc-chutes connecting pin is arranged in
Circular through hole on face.
The holding tank has groove bottom wall.
The contact arm has the switchgear connecting pin connecting with switchgear, and the outer peripheral surface of the switchgear connecting pin is equipped with
Twisting structure.
The contact arm of contact-fuse combined electric appliance, the contact arm have the arc-chutes connection for connecting with arc-chutes
End, the outer peripheral surface of the arc-chutes connecting pin is equipped with the holding tank being radially embedded in for the head of bolt or nut, described to go out
The end face of arc chamber connecting pin is equipped with the axial passage communicated with the holding tank, and the axial passage supplies the bar portion of the bolt
Or the screw rod being adapted to the nut passes through, the contact arm is equipped with the rotation stop knot cooperated with the bolt or nut rotation stop
Structure.
The holding tank is made of rotation stop section and gasket construction section, and the spline structure is arranged in rotation stop section, the pad
Piece construction section is located at the axially external to install gasket of the rotation stop section.
Contact arm in the radial direction, the size of the gasket construction section is greater than the size of rotation stop section and forms holding tank
T-shaped structure, the spline structure are formed by the inner wall of rotation stop section, and the axial passage is the end that arc-chutes connecting pin is arranged in
Circular through hole on face.
The holding tank has groove bottom wall.
The contact arm has a switchgear connecting pin for connecting with switchgear, on the outer peripheral surface of the switchgear connecting pin
Equipped with twisting structure.
The utility model has the advantages that the present invention is by adopting the above technical scheme, the outer peripheral surface of arc-chutes connecting pin is equipped with the head for bolt
The holding tank that portion or nut are radially embedded in, the end face of the arc-chutes connecting pin be equipped with for the bolt bar portion or with
The axial passage that the screw rod of nut adaptation passes through, the axial passage are communicated with the holding tank, the contact arm with it is described
Bolt or the cooperation of nut rotation stop, in this way, the head of nut or bolt can be embedded in holding tank and cooperate with contact arm rotation stop, thus
Nut or bolt can be driven to rotate by rotation contact arm, realize fastening or the spiral shell of the nut and respective threaded rod in holding tank
Contact arm is fixed on the end face of arc-chutes by nut or bolt, guarantees contact arm by the fastening of the threaded hole on bolt and arc-chutes
Meet temperature increase requirement and through-flow requirement, do not need that through-hole is arranged on contact arm, at the same do not need compared with prior art yet using
Very long tool for unscrewing/screwing bolt, it is convenient for disassembly and assembly, be conducive to improve assembly efficiency.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one embodiment of contact-fuse combined electric appliance in the present invention, while being also this
The use state diagram of contact arm in invention；
Fig. 2 is the perspective view one of contact arm in Fig. 1；
Fig. 3 is the perspective view two of contact arm in Fig. 1；
Fig. 4 is A-A cross-sectional view of Fig. 2 (cutting plane is by the axis of contact arm and the depth direction perpendicular to holding tank)；
Fig. 5 is the partial enlarged view in Fig. 1 at B.
The corresponding title of each appended drawing reference in figure are as follows: 10- main frame component, 20- fuse part, 21- fuse, 30-
Arc-chutes part, 31- arc-chutes, 311- screw rod, 32- contact arm sleeve, 33- contact arm, 331- arc-chutes connecting pin, 332- are accommodated
Slot, 333- fastener insertion mouth, 334- rotation stop section, 335- gasket construction section, 336- circular through hole, 337- switchgear connecting pin,
338- milling plane, 339- fabrication hole, 34- elastic washer, 35- plain washer, 36- nut.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings.
One embodiment of contact-fuse combined electric appliance is as shown in Fig. 1 ~ Fig. 5 in the present invention, including main frame component
10, fuse part 20 and arc-chutes part 30, fuse part 20 and arc-chutes part 30 are fixed on main frame component 10.
Fuse part 20 includes fuse 21, and arc-chutes part 30 includes arc-chutes 31, contact arm 33 and contact arm sleeve 32, arc-chutes 31
Moved end be connected with the corresponding end of fuse 21, the static sides of arc-chutes 31 is equipped with screw rod 311 and by screw rod 311 and contact arm 33
Arc-chutes connecting pin 331 is fixed and conducting, contact arm 33, arc-chutes 31 and fuse 21 form cascaded structure.
The outer peripheral surface of the arc-chutes connecting pin 331 of contact arm 33 is equipped with the holding tank being radially embedded in for corresponding nut 36
332, holding tank 332 is made of rotation stop section 334 and gasket construction section 335, and holding tank 332 has head or nut 36 for bolt
The fastener insertion mouth 333 being radially embedded in.Contact arm 33 in the radial direction, the size of gasket construction section 335 is greater than rotation stop
The size of section 334 and so that holding tank 332 is formed T-shaped structure, the inner wall of rotation stop section 334 forms and is embedded into holding tank 332
Nut 36 outer six aspects rotation stop cooperation spline structure；Gasket construction section 335 is located at the axially external of rotation stop section 334, uses
In installation gasket.In the present embodiment, gasket includes the elastic washer 34 adjacent with nut 36 and adjacent with elastic washer 34 flat
Washer 35 in other embodiments, can also adjust the type and quantity of gasket certainly without using gasket or as needed.
The end face of arc-chutes connecting pin 331 is equipped with circular through hole 336, which forms the axial direction communicated with holding tank 332
Channel, the screw rod 311 for being located at 31 static side of arc-chutes pass through.For the ease of force, what contact arm 33 was used to connect with switchgear is opened
Close and set on the outer peripheral surface of cabinet connecting pin 337 there are two the milling plane 338 that is parallel to each other, form twisting structure, can with it is corresponding
Twisting tool connection realize torque transmitting.In other embodiments, twisting structure also could alternatively be other forms, such as
Outer six side on contact arm is set, or is not provided with twisting structure, is transmitted by the frictional force that the outer peripheral surface for clamping contact arm generates
Torque.In order to guarantee structural strength and through-current capability, the diameter of arc-chutes connecting pin 331 is greater than the straight of switchgear connecting pin 337
Diameter.
Holding tank 332 uses non-through slot structure, has the groove bottom wall towards fastener insertion mouth 333, and groove bottom wall, which is formed, to be used
In the nut support face of holding nut 36, it can guarantee nut 36 during contact arm 33 extend into contact arm sleeve 32 in it not
It falls, and convenient for being directed at nut 36 with the screw rod on 31 end face of arc-chutes.For needing the case where installing gasket, gasket
The cell wall of construction section 335 forms pad support face, can guarantee that gasket and nut 36 are coaxial.Consider contact arm arrives electric conductivity,
Holding tank 332 can be processed by the way of wire cutting, in order to easy to process, holding tank first can be processed into through-hole, then
The side opening of holding tank welds mounting, and for the ease of the positioning and installation of mounting, the size of mounting is less than holding tank notch
Size, thus formation process hole 339, fabrication hole 339 is located in rotation stop section 334 and its axial dimension is less than rotation stop section 334
Axial dimension does not interfere with the support of 334 pairs of nuts 36 of rotation stop section.In order to cooperate nut 36 preferably with screw rod, accommodate
The groove bottom wall of slot 332 is preferably able to gasket and nut 36 being supported on the position coaxial with circular through hole 336.In other implementations
In example, holding tank 332 is also possible to through slot, can be supported at this time by the groove sidewall of holding tank to nut, or will touching
Arm is installed in a vertical manner, and the side wall of the axial side of holding tank 332 can form nut and support when vertical mode is installed.
When assembly, nut 36, elastic washer 34 and plain washer 35 are radially inserted into holding tank 332 along contact arm 33 first,
So that groove bottom wall is supported nut 36, elastic washer 34 and plain washer 35, and stops nut 36 and the inner wall formation of rotation stop section 334
Turn cooperation, the fastener insertion mouth 333 for then keeping contact arm 33 upward, contact arm 33 is protruded into contact arm sleeve 32, contact arm is finely tuned
33 positions make the screw rod on arc-chutes 31 pass through the circular through hole 336 on 33 end face of contact arm and be preliminarily mated with the formation of nut 36,
Finally by twisting tool clamping in the twisting structure of the switchgear connecting pin 337 of contact arm 33, band acting arm 33 is rotated, and realizes spiral shell
The fastening of mother 36 and screw rod.The sequence for dismantling contact arm 33 is opposite with aforesaid operations process.In the present embodiment, contact arm 70 uses aluminum
At since it is solid construction, capable of guaranteeing through-flow requirement, and relative to copper material is used, can be effectively reduced material
Expect cost.Certainly, in other embodiments, contact arm can also use copper material.
One embodiment of the contact arm of contact-fuse combined electric appliance, that is, above-mentioned contactor-fuse group in the present invention
The contact arm 33 in the embodiment of electric appliance is closed, details are not described herein again.
In the above-described embodiments, holding tank 332 is used to cooperate with nut 36, in other embodiments of the invention, can also
Internal screw thread is arranged on arc-chutes 31, bolt is set in holding tank 332, when assembly, is first inserted into the bar portion of bolt round
Through-hole 336 is simultaneously pierced by, and so that the head of bolt is entered holding tank 332 and is matched with the formation of rotation stop section 334 rotation stop after being pierced by a segment length
It closes, the axial dimension of holding tank 332 can be increased suitably in order to the loading of bolt according to the size of bolt in the case of this kind.
In other embodiments, other forms also be could alternatively be as the circular through hole of axial passage 336, such as be open
Mouth 333 is embedded in towards consistent U-lag with fastener, and bolt can be to be embedded in holding tank with the posture of contact arm 33 in parallel at this time
332 and U-lag in.
In addition, nut 36 is formed by spline structure realization by the inner wall of rotation stop section 334 and touches in above-described embodiment
The rotation stop of arm 33 cooperates, in other embodiments of the invention, nut 36 or bolt can also by other means with contact arm 33
Rotation stop cooperation is formed, such as circular through hole 336 is replaced with into square through hole, bolt is replaced with into square neck bolt, by square neck spiral shell
Rotation stop is realized in the square neck of bolt and the cooperation of square through hole.Furthermore in other embodiments, above-mentioned contact arm also can be used
On the combined electrical apparatus of not set contact arm sleeve 32.
Claims (8)
1. contact-fuse combined electric appliance, including fuse, arc-chutes and the contact arm being connect with arc-chutes, the contact arm tool
There is the arc-chutes connecting pin connecting with arc-chutes, it is characterised in that: the outer peripheral surface of the arc-chutes connecting pin is equipped with for bolt
Head or the holding tank that is radially embedded in of nut, the end face of the arc-chutes connecting pin is equipped with to be communicated with the holding tank
Axial passage, the axial passage are passed through for the bar portion of the bolt or the screw rod that be adapted to the nut, the contact arm and
The bolt or nut are by the spline structure rotation stop cooperation being arranged on contact arm；The holding tank is by rotation stop section and is located at described stop
Turn the axially external gasket construction section composition of section, the head of the bolt or nut are located in rotation stop section, the spline structure
It is arranged in rotation stop section, gasket is equipped in the gasket construction section.
2. contact-fuse combined electric appliance according to claim 1, it is characterised in that: contact arm in the radial direction,
The size of the gasket construction section is greater than the size of rotation stop section and holding tank is made to form T-shaped structure, and the spline structure is by rotation stop
The inner wall of section is formed, and the axial passage is the circular through hole being arranged on the end face of arc-chutes connecting pin.
3. contact-fuse combined electric appliance according to claim 1 or 2, it is characterised in that: the holding tank has slot
Bottom wall.
4. contact-fuse combined electric appliance according to claim 1 or 2, it is characterised in that: the contact arm has and opens
The switchgear connecting pin of cabinet connection is closed, the outer peripheral surface of the switchgear connecting pin is equipped with twisting structure.
5. the contact arm of contact-fuse combined electric appliance, the contact arm has the arc-chutes connecting pin for connecting with arc-chutes,
It is characterized by: the outer peripheral surface of the arc-chutes connecting pin is equipped with the receiving being radially embedded in for the head of bolt or nut
Slot, the end face of the arc-chutes connecting pin are equipped with the axial passage communicated with the holding tank, described in the axial passage supplies
The bar portion of bolt or the screw rod being adapted to the nut pass through, and the contact arm is equipped with to be cooperated with the bolt or nut rotation stop
Spline structure；The holding tank is made of rotation stop section and gasket construction section, and the spline structure is arranged in rotation stop section, described
Gasket construction section is located at the axially external to install gasket of the rotation stop section.
6. contact arm according to claim 5, it is characterised in that: contact arm in the radial direction, the gasket construction section
Size is greater than the size of rotation stop section and holding tank is made to form T-shaped structure, and the spline structure is formed by the inner wall of rotation stop section, institute
Stating axial passage is the circular through hole being arranged on the end face of arc-chutes connecting pin.
7. contact arm according to claim 5 or 6, it is characterised in that: the holding tank has groove bottom wall.
8. contact arm according to claim 5 or 6, it is characterised in that: the contact arm has to be opened for what is connect with switchgear
Cabinet connecting pin is closed, the outer peripheral surface of the switchgear connecting pin is equipped with twisting structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611169847.8A CN106783295B (en) | 2016-12-16 | 2016-12-16 | Contact-fuse combined electric appliance and its contact arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611169847.8A CN106783295B (en) | 2016-12-16 | 2016-12-16 | Contact-fuse combined electric appliance and its contact arm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106783295A CN106783295A (en) | 2017-05-31 |
| CN106783295B true CN106783295B (en) | 2019-02-01 |
Family
ID=58893314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611169847.8A Active CN106783295B (en) | 2016-12-16 | 2016-12-16 | Contact-fuse combined electric appliance and its contact arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106783295B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201526575U (en) * | 2009-09-09 | 2010-07-14 | 张聪林 | Internal tooth C-shaped steel fastening member |
| CN103151215A (en) * | 2012-04-17 | 2013-06-12 | 苏州朗格电气有限公司 | Pole and contact arm assembly |
| CN103470593A (en) * | 2013-09-22 | 2013-12-25 | 何斌清 | Bolt combination installation device and application method |
| CN203721616U (en) * | 2013-12-19 | 2014-07-16 | 施耐德电气华电开关(厦门)有限公司 | Vacuum contactor and vacuum contactor-fuse combined electric appliance |
| CN203983209U (en) * | 2011-04-18 | 2014-12-03 | Abb技术有限公司 | For the contact arm of switching device and the circuit breaker that comprises this contact arm |
| CN205303374U (en) * | 2016-01-21 | 2016-06-08 | 贵州长征电器自动化有限公司 | Device for connecting be used for circuit breaker |
-
2016
- 2016-12-16 CN CN201611169847.8A patent/CN106783295B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201526575U (en) * | 2009-09-09 | 2010-07-14 | 张聪林 | Internal tooth C-shaped steel fastening member |
| CN203983209U (en) * | 2011-04-18 | 2014-12-03 | Abb技术有限公司 | For the contact arm of switching device and the circuit breaker that comprises this contact arm |
| CN103151215A (en) * | 2012-04-17 | 2013-06-12 | 苏州朗格电气有限公司 | Pole and contact arm assembly |
| CN103470593A (en) * | 2013-09-22 | 2013-12-25 | 何斌清 | Bolt combination installation device and application method |
| CN203721616U (en) * | 2013-12-19 | 2014-07-16 | 施耐德电气华电开关(厦门)有限公司 | Vacuum contactor and vacuum contactor-fuse combined electric appliance |
| CN205303374U (en) * | 2016-01-21 | 2016-06-08 | 贵州长征电器自动化有限公司 | Device for connecting be used for circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106783295A (en) | 2017-05-31 |
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