CN209045471U - A kind of novel arc extinguishing cover - Google Patents
A kind of novel arc extinguishing cover Download PDFInfo
- Publication number
- CN209045471U CN209045471U CN201821557866.2U CN201821557866U CN209045471U CN 209045471 U CN209045471 U CN 209045471U CN 201821557866 U CN201821557866 U CN 201821557866U CN 209045471 U CN209045471 U CN 209045471U
- Authority
- CN
- China
- Prior art keywords
- arc runner
- radiating fin
- ceramic radiating
- arc
- rear casing
- 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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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model provides a kind of novel arc extinguishing cover, including shell, ceramic radiating fin component, contact tie point and arc runner, shell includes front casing and rear casing, rear casing is equipped with cooling fin and places cavity, rear casing inside top is equipped with upper arc runner channel, and rear casing bottom is equipped with movable contact arc runner channel and stationary contact arc runner channel；Ceramic radiating fin component is set to cooling fin and places cavity, and ceramic radiating fin component includes several ceramic radiating fins, several cooling fin connecting columns, and ceramic heat-dissipating on piece is equipped with several first through hole, is equipped with annular projection in the middle part of cooling fin connecting column；Arc runner includes upper arc runner, movable contact arc runner and stationary contact arc runner, and upper arc runner is set to upper arc runner channel, and movable contact arc runner is set to movable contact arc runner channel, and stationary contact arc runner is set to quiet arc runner channel；Contact tie point is respectively arranged on dynamic and stationary contact arc runner end, and contact tie point is set to the outside of rear casing bottom.
Description
Technical field
The utility model relates to circuit switch device field more particularly to a kind of novel arc extinguishing covers.
Background technique
Breaker is the electric current referred to close, carry and cut-off under normal loop condition and can close, when defined
Interior carrying and the switching device for cut-offfing the electric current under abnormal loop condition, breaker are widely used in every field, such as industry
The various places for needing electric power such as production, electric power transport, high-speed rail subway.
Breaker is generally made of contact system, arc quenching system, operating mechanism, buckle releaser, shell etc., the arc extinguishing of breaker
System is generally arc-extinguish chamber, wherein using one of the arc-extinguish chamber of mainstream when arc-extinguish chamber based on ceramic radiating fin,
Using the arc-extinguish chamber of ceramic radiating fin, it is typically necessary piece cooperation magnetic blow-out device, magnetic blow-out device guides electric arc into cooling fin and will
The motion range of electric arc guarantees in cooling fin, and the cooling arc temperature of ceramic material is utilized and reaches arc quenching effect, existing arc extinguishing
Ceramic radiating fin in cover needs dedicated mounting rack to be fixed more, the maintenance of ceramic radiating fin independent with arc-extinguish chamber
The assembly and disassembly of process are more troublesome, and the volume of arc-extinguish chamber is also larger.
The direction of crack and electric arc that arc-extinguish chamber is generally formed by ceramic radiating fin is divided into longitudinal joint arc-extinguish chamber and transverse joint arc extinguishing
Cover, the two have their own advantages, and general arc-extinguish chamber is only one of type.
In view of this, it is necessary in view of the problems of the existing technology, propose a kind of novel arc extinguishing cover to solve above-mentioned ask
Topic.
Summary of the invention
The purpose of this utility model is to provide a kind of novel arc extinguishing covers, are connected by increasing cooling fin between ceramic radiating fin
Column is connect to carry out the fixation between piece and piece, instead of the mounting rack in traditional technology；Notch is opened up in ceramic radiating fin and is led to
Hole makes notch and through-hole form alternate channel, forms longitudinal joint by the way that cooling fin a piece of in every two panels cooling fin is overturn 180 °
The effect to form transverse joint arc-extinguish chamber is laminated in the effect of arc-extinguish chamber, multi-disc cooling fin, and there is the utility model arc-extinguish chamber longitudinal joint to go out with transverse joint
The Common advantages of arc cover.
The technology that the utility model uses is: a kind of novel arc extinguishing cover, which is characterized in that including shell, ceramic radiating fin
Component, arc runner and contact tie point are set in shell there are two ceramic radiating fin component, and ceramic radiating fin component passes through electric arc
Runner is connect with contact tie point；
Shell includes rear casing and front casing, and rear casing is equipped with two symmetrical cooling fins and places cavitys, at the top of rear casing in
Side is equipped with upper arc runner channel, and the two sides of rear casing bottom inside are respectively equipped with movable contact arc runner channel and stationary contact electricity
Arc runner channel, front casing and rear casing are set to mutually matched mounting hole；
Ceramic radiating fin component is two groups, is respectively arranged on cooling fin and places cavity, ceramic radiating fin component includes several potteries
Porcelain cooling fin, several cooling fin connecting columns, ceramic heat-dissipating on piece are equipped with several first through hole, are equipped with ring in the middle part of cooling fin connecting column
Shape protrusion, for every two panels ceramic radiating fin respectively with annular projection upper and lower ends face contact, cooling fin connecting column both ends are set to first
In through-hole；
Arc runner includes upper arc runner, movable contact arc runner and stationary contact arc runner, and upper arc runner is set to
Upper arc runner channel, movable contact arc runner are set to movable contact arc runner channel, and stationary contact arc runner is set to electrostatic arc
Runner channel；
Contact tie point is respectively arranged on movable contact arc runner and stationary contact arc runner end, after contact tie point is set to
The outside of outer casing bottom.
Further, ceramic radiating fin one end is equipped with locating notch, and cooling fin places cavity one end and is equipped with positioning convex portion, fixed
Position notch is fallen in positioning convex portion.
Further, two cooling fins, which are placed, is equipped with central protrusion, the ceramic radiating fin other end and central protrusion between cavity
Contact aside.
Further, the ceramic radiating fin other end is equipped with notch and irregular through-hole, and irregular through-hole is two radius unequals
The round composite structures with two tangent straight lines, every two panels ceramic radiating fin central symmetry each other.
Further, ceramic radiating fin component further includes several insulated bolts and insulating nut, and cooling fin connecting column is equipped with
Second through-hole, insulated bolt pass through first through hole and the second through-hole, and insulating nut is set to the screw rod tail of insulated bolt.
Further, it is respectively equipped with bolt channels and nut passage in rear casing bottom and inside top, insulating nut is fallen
In nut passage, insulated bolt falls in bolt channels.
It further, further include upper protective plate and lower protective plate, upper protective plate is respectively arranged on above arc runner both ends
Between rear casing, lower protective plate be respectively arranged below movable contact arc runner and stationary contact arc runner end with rear casing it
Between.
Further, rear casing is equipped with the projecting extension for installing contact tie point.
Compared with prior art, the utility model has the beneficial effects that
Using the utility model arc-extinguish chamber, the advantages of transverse joint arc-extinguish chamber is with longitudinal joint arc-extinguish chamber is combined, circuit can be effectively eliminated and opened
The ceramic radiating fin component of the electric arc generated during closing, arc-extinguish chamber assembles and disassembles simplicity, reduces the maintenance used time, and overall volume reduces,
Effectively improve the bulk life time of breaker.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of novel arc extinguishing cover provided by the utility model；
Fig. 2 is a kind of schematic diagram of internal structure of novel arc extinguishing cover provided by the utility model；
Fig. 3 is a kind of cross-sectional view of novel arc extinguishing cover provided by the utility model；
Fig. 4 is a kind of structural schematic diagram of the ceramic radiating fin component of novel arc extinguishing cover provided by the utility model；
Fig. 5 is a kind of structural schematic diagram of the ceramic radiating fin of novel arc extinguishing cover provided by the utility model；
Fig. 6 is a kind of structural schematic diagram of the cooling fin connecting column of novel arc extinguishing cover provided by the utility model；
Fig. 7 is a kind of transverse joint arc extinguishing process schematic of novel arc extinguishing cover provided by the utility model；
Fig. 8 is a kind of longitudinal joint arc extinguishing process schematic of novel arc extinguishing cover provided by the utility model.
Specific embodiment
The utility model is described in detail in each embodiment shown in reference to the accompanying drawing, but it should be stated that,
These embodiments are not limitation of the utility model, those of ordinary skill in the art according to these embodiments made by function
Energy, method or equivalent transformation or substitution in structure, belong within the protection scope of the utility model.
In the description of the present embodiment, it is to be understood that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description the utility model and creates and simplify description, rather than
The device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot
It is interpreted as the limitation created to the utility model.
In addition, term " first ", " second ", " third " etc. are used for description purposes only, it is not understood to indicate or imply
Relative importance or the quantity for implicitly indicating indicated technical characteristic.The feature of " first ", " second " etc. is defined as a result,
It can explicitly or implicitly include one or more of the features.In the description that the utility model is created, unless otherwise
Illustrate, the meaning of " plurality " is two or more.
Term " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, be also possible to removable
Connection is unloaded, or is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be in
Between medium be indirectly connected, can be the connection inside two elements.For the ordinary skill in the art, can pass through
Concrete condition understands concrete meaning of the above-mentioned term in the utility model creation.
Please join shown in Fig. 1 to Fig. 6, a kind of novel arc extinguishing cover, including shell 1, ceramic radiating fin component 2, arc runner and
Contact tie point 4 is set in shell 1 there are two ceramic radiating fin component 2, and ceramic radiating fin component 2 passes through arc runner and contact
Tie point 4 connects；
Shell 1 includes rear casing 11 and front casing 12, and rear casing 11 is equipped with two symmetrical cooling fins and places cavity 111, after
11 inside top of shell is equipped with upper arc runner channel 112, and the two sides of 11 bottom inside of rear casing are respectively equipped with movable contact electric arc
Runner channel 113 and stationary contact arc runner channel 114, front casing 12 and rear casing 11 are set to mutually matched mounting hole；
Ceramic radiating fin component 2 is two groups, is respectively arranged on cooling fin and places cavity 111, if ceramic radiating fin component 2 includes
Dry ceramic radiating fin 21, several cooling fin connecting columns 22, ceramic radiating fin 21 are equipped with several first through hole 211, and cooling fin connects
Connect in the middle part of column 22 be equipped with annular projection 221, every two panels ceramic radiating fin 21 respectively with 221 upper and lower ends face contact of annular projection,
22 both ends of cooling fin connecting column are set in first through hole 211；
Arc runner includes upper arc runner 1, movable contact arc runner 2 and stationary contact arc runner 3, upper arc runner 1
Set on upper arc runner channel 112, movable contact arc runner 2 is set to movable contact arc runner channel 113, stationary contact arc runner
3 are set to stationary contact arc runner channel 114；
Contact tie point 4 is respectively arranged on 3 end of movable contact arc runner 2 and stationary contact arc runner, and contact tie point 4 is set
In the outside of 11 bottom of rear casing.
The utility model arc-extinguish chamber is in use, the arcing contact that contact tie point 4 corresponds in breaker is connected, electric arc generates
When, electric arc from contact tie point 4 through movable contact arc runner 2 and stationary contact arc runner 3 flowed to ceramic radiating fin component 2 into
Row arc extinguishing, two ceramic radiating fin components 2 of left and right are connected by upper arc runner 1, wherein non-arc extinguishing in ceramic radiating fin component 2
Electric arc is oriented to another ceramic radiating fin component 2, guarantees arc quenching effect.
When being overhauled as needed to ceramic radiating fin, front casing 12 is unloaded from rear casing 11, by ceramic radiating fin
Component 2 is placed in cavity 111 from cooling fin and is taken out, and ceramic radiating fin 21 is removed inspection piecewise.
Further, 21 one end of ceramic radiating fin is equipped with locating notch 212, and cooling fin, which is placed 111 one end of cavity and is equipped with, to be determined
Position protrusion 115, locating notch 212 are fallen in positioning convex portion 115；Positioning convex portion 115 carries out the outside of ceramic radiating fin component 2
Limit effect.Two cooling fins are placed and are equipped with central protrusion 116 between cavity 111, and 21 other end of ceramic radiating fin and middle part are prominent
Play 116 contact aside；Central protrusion 116 limits the inside of ceramic radiating fin component 2；Pass through positioning convex portion 115
It is fixed with left and right directions of the central protrusion 116 to ceramic radiating fin component 2, passes through rear casing 11 and 12 pairs of front casing potteries
The upper and lower and front-rear direction of porcelain heat sink assembly 2 is fixed, and above structure removes traditional cooling fin fixed frame, is convenient for
The peace of ceramic radiating fin component 2 is torn open, and arc-extinguish chamber overall volume is also reduced.
Further, as described in Fig. 4 and Fig. 5,21 other end of ceramic radiating fin is equipped with notch 213 and irregular through-hole 214,
Irregular through-hole 214 is the round composite structure with two tangent straight lines of two radius unequals, centered on every two panels ceramic radiating fin 21 is mutual
Symmetrically, by replacing the placing direction of every two panels ceramic radiating fin 21, notch 213 and irregular through-hole 214 is made to form labyrinth
Formula channel makes electric arc carry out the repeatedly contact with cooling fin in labyrinth passage, increases electric arc and radiating rib contact surface product, adds
Strong arc quenching effect.As shown in fig. 7, when being stacked in order for ceramic radiating fin 21, flow direction of the electric arc in ceramic radiating fin component 2
As described in Figure 7, electric arc is moved upwards from the bottom of ceramic radiating fin component 2 by the magnetic fields in breaker, is flowed into ceramics and is dissipated
It is elongated in crack when crack between backing 21 by magnetic force, this process is that the shared rupturing duty of conventional transverse joint arc-extinguish chamber is former
Reason；As shown in figure 8, during electric arc flows through from the bottom up, electric arc exists when ceramic radiating fin 21 is using alternately overturning discharge
It is divided into the small electric arc of multiply in labyrinth passage, during electric arc passes through with labyrinth type, is repeatedly connect with cooling fin
The rupturing duty principle of longitudinal joint arc-extinguish chamber is realized in touching, at this point, ceramic radiating fin component 2 has transverse joint arc-extinguish chamber and longitudinal joint simultaneously
The Joint effect of arc-extinguish chamber, greatly improves arc quenching effect.
Further, ceramic radiating fin component 2 further includes several insulated bolts 23 and insulating nut 24, cooling fin connecting column
22 are equipped with the second through-hole 222, and insulated bolt 23 passes through first through hole 211 and the second through-hole 222, and insulating nut 24 is set to insulation spiral shell
The screw rod tail of bolt 23, it is by insulated bolt 23 and insulating nut 24, ceramic radiating fin 21 and cooling fin connecting column 22 is fixed
Get up, the accident being scattered occurs in placing ceramic heat sink assembly 2 when dismounting, improve safety.In 11 bottom of rear casing and top
Bolt channels 117 and nut passage 118 are respectively equipped on side, insulating nut 24 falls in nut passage 118, and insulated bolt 23 is fallen in
Bolt channels 117, are arranged bolt channels 117 and nut passage 118 is that insulated bolt 23 and insulating nut 24 carry out dismounting ceramics
Resigning effect when heat sink assembly 2, also plays a fixing limit and fixed function.
It further, further include upper protective plate 51 and lower protective plate 52, upper protective plate 51 is respectively arranged on 1 liang of arc runner
Between end top and rear casing 11, lower protective plate 52 is respectively arranged under movable contact arc runner 2 and stationary contact arc runner end
Between side and rear casing 11, electric arc is put at the tip of arc runner end in order to prevent for protective plate 51 and lower protective plate 52 in setting
Electrical effect damages shell 1, plays further protective effect.
Further, rear casing 11 is equipped with the projecting extension 6 for installing contact tie point 4, is extended using protrusion
Portion 6 comes connecting terminal tie point 4 and arcing contact, improves stability and safety.
Tool of the series of detailed descriptions listed above only for the feasible embodiment of the utility model
Body explanation, they are all without departing from made by the utility model skill spirit not to limit the protection scope of the utility model
Equivalent implementations or change should be included within the scope of protection of this utility model.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (8)
1. a kind of novel arc extinguishing cover, which is characterized in that including shell (1), ceramic radiating fin component (2), arc runner and contact
Tie point (4), the shell (1) is interior to be set there are two the ceramic radiating fin component (2), and the ceramic radiating fin component (2) is logical
The arc runner is crossed to connect with contact tie point (4)；
The shell (1) includes rear casing (11) and front casing (12), and the rear casing (11) is equipped with two symmetrical cooling fins and puts
It empties chamber (111), rear casing (11) inside top is equipped with upper arc runner channel (112), rear casing (11) bottom
The two sides of inside are respectively equipped with movable contact arc runner channel (113) and stationary contact arc runner channel (114)；
The ceramic radiating fin component (2) is two groups, is respectively arranged on the cooling fin and places cavity (111), the ceramic heat-dissipating
Piece component (2) includes several ceramic radiating fins (21), several cooling fin connecting columns (22), and the ceramic radiating fin (21) is equipped with
Several first through hole (211), cooling fin connecting column (22) middle part are equipped with annular projection (221), and ceramics described in every two panels dissipate
For backing (21) respectively with the annular projection (221) upper and lower ends face contact, cooling fin connecting column (22) both ends are set to institute
It states in first through hole (211)；
The arc runner includes upper arc runner (31), movable contact arc runner (32) and stationary contact arc runner (33), institute
Arc runner (31) are stated set on the upper arc runner channel (112), the movable contact arc runner (32) is set to movable contact
Arc runner channel (113), the stationary contact arc runner (33) are set to stationary contact arc runner channel (114)；
The contact tie point (4) is respectively arranged on the movable contact arc runner (32) and the stationary contact arc runner (33) end
Portion, the contact tie point (4) are set to the outside of the rear casing (11) bottom.
2. novel arc extinguishing cover according to claim 1, which is characterized in that described ceramic radiating fin (21) one end is equipped with positioning
Notch (212), the cooling fin place cavity (111) one end and are equipped with positioning convex portion (115), and the locating notch (212) falls in
On the positioning convex portion (115).
3. novel arc extinguishing cover according to claim 2, which is characterized in that two cooling fins are placed between cavity (111)
Equipped with central protrusion (116), the contact aside of ceramic radiating fin (21) other end and the central protrusion (116).
4. novel arc extinguishing cover according to claim 2, which is characterized in that ceramic radiating fin (21) other end, which is equipped with, to be lacked
Mouth (213) and irregular through-hole (214), the irregular through-hole (214) are the round combination with two tangent straight lines of two radius unequals
Structure, the central symmetry each other of ceramic radiating fin (21) described in every two panels.
5. novel arc extinguishing cover according to claim 1, which is characterized in that the ceramic radiating fin component (2) is if further include
Dry insulated bolt (23) and insulating nut (24), the cooling fin connecting column (22) are equipped with the second through-hole (222), the insulation spiral shell
Bolt (23) passes through the first through hole (211) and second through-hole (222), and the insulating nut (24) is set to the insulation spiral shell
The screw rod tail of bolt (23).
6. novel arc extinguishing cover according to claim 5, which is characterized in that rear casing (11) bottom inside is equipped with bolt
Channel (117), inside top are equipped with nut passage (118), and the insulating nut (24) falls in the nut passage (118), institute
It states insulated bolt (23) and falls in the bolt channels (117).
7. novel arc extinguishing cover according to claim 1, which is characterized in that further include upper protective plate (51) and lower protective plate
(52), the upper protective plate (51) is respectively arranged on above upper arc runner (31) both ends between rear casing (11), described
Outside lower protective plate (52) is respectively arranged below the movable contact arc runner (32) and stationary contact arc runner end and is rear
Between shell (11).
8. novel arc extinguishing cover according to claim 1, which is characterized in that the rear casing (11) is equipped with for installing
State the projecting extension (6) of contact tie point (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821557866.2U CN209045471U (en) | 2018-09-25 | 2018-09-25 | A kind of novel arc extinguishing cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821557866.2U CN209045471U (en) | 2018-09-25 | 2018-09-25 | A kind of novel arc extinguishing cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209045471U true CN209045471U (en) | 2019-06-28 |
Family
ID=67034070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821557866.2U Expired - Fee Related CN209045471U (en) | 2018-09-25 | 2018-09-25 | A kind of novel arc extinguishing cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209045471U (en) |
-
2018
- 2018-09-25 CN CN201821557866.2U patent/CN209045471U/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: 20190628 Termination date: 20210925 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |