CN206893581U - Novel plastic shell circuit breaker - Google Patents
Novel plastic shell circuit breaker Download PDFInfo
- Publication number
- CN206893581U CN206893581U CN201720554167.1U CN201720554167U CN206893581U CN 206893581 U CN206893581 U CN 206893581U CN 201720554167 U CN201720554167 U CN 201720554167U CN 206893581 U CN206893581 U CN 206893581U
- Authority
- CN
- China
- Prior art keywords
- circuit breaker
- protective cover
- plastic shell
- novel plastic
- vernier knob
- 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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Abstract
The utility model discloses a kind of novel plastic shell circuit breaker, including the shell being made up of base and upper lid, the front of upper lid is provided with opening, base is provided with major loop, trip unit and handle, handle passes through opening, driving handle, major loop is powered, if the electric current in major loop is more than setting current, trip unit tripping disconnects major loop, and upper lid is provided with vernier knob and protective cover, and protective cover is locked by lead sealing bar, vernier knob is connected with trip unit, and transferring vernier knob can be finely adjusted to setting current.The utility model, when the electric current for needing to limit when operating is less than rated current, it can be adjusted by vernier knob, no longer need to prepare other breakers, it is easy to use, save cost, the top of vernier knob is provided with protective cover and locked by lead sealing bar, prevent everybody from being transferred to setting current, ensure circuit safety.
Description
Technical field
It the utility model is related to field of circuit breakers, and in particular to novel plastic shell circuit breaker.
Background technology
In electric product exhibition and electrical equipment in the market, low-voltage circuit breaker is seen everywhere, particularly mold cased circuit breaker times
Favored.Mold cased circuit breaker has two sections of dynamic defencive functions of overload long delay, short-circuit wink, can also with Electrical leakage, measurement,
The modular units such as electricity behaviour are used cooperatively.In low-voltage distribution system, commonly use it and do limit switch or branch switch, instead of over
Conventional fuse and knife switch.
Breaker of plastic casing can automatically cut off electric current after electric current exceedes escape setting.The main contacts of breaker is that armrest moves
Operation or electric switch-on, after main contacts closes, main contacts is locked on closing position by tripper, overcurrent trip
The thermal element of coil and thermal trip is connected with main circuit, the coil and power sources in parallel of under-voltage release.
When circuit occurs short circuit or seriously overloaded, the armature adhesive of overcurrent trip, make freely to take off mouth mechanism action,
Main contacts disconnects main circuit；
When circuit overloads, the thermal element heating of thermal trip bends bimetal leaf, and promotion freely takes off mouth mechanism action,
Main contacts disconnects main circuit；
When circuit is under-voltage, the armature release of under-voltage release, make freely to take off mouth mechanism action, main contacts disconnects main electricity
Road.
But breaker of plastic casing of the prior art when dispatching from the factory with regard to setting current carry out default value setting, make
Used time can not be finely adjusted according to specific requirement, it is sometimes desirable to which the electric current of restriction is less than setting current, it is also necessary to changes existing
Breaker, increase cost.
Therefore, there is the defects of setting current given tacit consent to can not be adjusted in existing breaker of plastic casing.
Utility model content
The utility model technical issues that need to address are that existing breaker of plastic casing can not in the presence of the setting current of acquiescence
The problem of regulation.
In order to solve the above-mentioned technical problem, technical scheme is to provide a kind of novel plastic shell open circuit used by the utility model
Device, including shell, the shell are made up of base and upper lid, and the front of the upper lid is provided with opening, and the base is provided with master
Loop, trip unit and handle, the handle pass through the opening, promote the handle, the major loop is powered, if the master
Electric current in loop is more than setting current, and the trip unit tripping disconnects the major loop,
The upper lid is provided with vernier knob, and the upper lid is provided with protective cover, and the protective cover is locked by lead sealing bar,
The vernier knob is connected with the trip unit, and transferring the vernier knob can be finely adjusted to setting current.
In such scheme, it is described on be covered with boss, the opening is arranged on the boss, and the vernier knob is set
Put in the lower section of the boss.
In such scheme, the both sides of the boss, which are respectively provided with one, can put the chamber groove for carrying annex.
In such scheme, the front of the upper lid is provided with protective case, the protective case be provided with respectively with the boss, described
The first mounting hole, the second mounting hole of vernier knob position correspondence, the protective case are covered on the two chamber grooves.
In such scheme, the bottom of the protective case is provided with groove, and second mounting hole is arranged in the groove.
In such scheme, the lock pillar of C fonts is provided with the groove, the lock pillar is arranged on second mounting hole
Left side, the protective cover are provided with the perforate corresponding with the lock pillar, and the lock pillar passes through the perforate, and the lead sealing bar is worn
Cross the protective cover is locked after the exposed parts of the lock pillar.
In such scheme, the protective cover is clamshell, and the side of the protective cover is rotatably arranged on the boss,
The middle part of the free end of the protective cover is provided with the first deep-slotted chip breaker, and the groove is provided with the second deep-slotted chip breaker, first arc
Groove and second deep-slotted chip breaker form the cavity stirred for finger.
In such scheme, a clamp is respectively provided with left and right sides of the protective cover, the two side of the groove is provided with
The neck being adapted with the clamp.
In such scheme, the operating surface of the handle is transversely provided with some concave grooves along it.
In such scheme, the free end of the handle is arcuation.
The utility model, when the electric current for needing to limit when operating is less than rated current, it can be adjusted by vernier knob
Section, it is no longer necessary to prepare other breakers, it is easy to use, cost is saved, the top of vernier knob is provided with protective cover and passed through
Lead sealing bar is locked, prevents everybody from being transferred to setting current, ensures circuit safety.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of another angle of the utility model；
Fig. 3 is the partial enlarged drawing in the A portions in the utility model Fig. 1.
Embodiment
The utility model is described in detail with reference to specification drawings and specific embodiments.
As shown in figure 1, the utility model provides a kind of novel plastic shell circuit breaker, including it is made up of base 10 and upper lid 20
Shell, the front of upper lid 20 is provided with opening, and base 10 is provided with major loop, trip unit and handle 30, and handle 30 is through opening
Mouth is set.Driving handle 30, major loop are powered, if the electric current in major loop is more than setting current, trip unit tripping will be led back
Road disconnects.
As shown in figure 3, upper lid 20 is provided with vernier knob 40 and protective cover 50, protective cover 50 is locked by lead sealing bar, micro-
Knob 40 is adjusted to be connected with trip unit, transferring vernier knob 40 can be finely adjusted to setting current.
Boss 21 is covered with as shown in Fig. 2, opening is arranged on boss 21, and vernier knob 40 is arranged on boss 21
Lower section.The both sides of boss 21, which are respectively provided with one, can put the chamber groove 60 for carrying annex, and auxiliary, shunt opening and under-voltage can be placed in chamber groove 60
Deng annex, this not only facilitates client's installation, while reduces the volume after product installation annex again, empty so as to save installation
Between.
As shown in figure 1, the front of upper lid 20 is provided with protective case 70, protective case 70 be provided with respectively with boss 21, vernier knob 40
The first mounting hole, the second mounting hole of position correspondence, protective case 70 are covered on two chamber grooves 60, prevent dust and other impurities from connection
Gap enters in chamber groove 60.
The bottom of protective case 70 is provided with groove 22, and the second mounting hole is arranged in groove 22, because vernier knob 40 is arranged on
In second mounting hole, relative to the knob outwards paid, being arranged in the second mounting hole reduces space-consuming, while causes micro-
Adjust the swing arm on knob 40 relatively short, during preventing use, swing arm fracture, increase service life.
As shown in figure 3, being provided with the lock pillar 23 of C fonts in groove 22, lock pillar 23 is arranged on the left side of the second mounting hole, protects
Cover 50 is provided with the perforate 51 corresponding with lock pillar 23, and lock pillar 23 passes through perforate 51, and lead sealing bar passes through the exposed parts of lock pillar 23
It is afterwards that protective cover 50 is locked.Protective cover 50 prevents others from transferring vernier knob 40, and lead sealing bar can not reset after destroying, be easy to observe
Whether someone's malice starts protective cover 50, ensures circuit safety.
Protective cover 50 is clamshell, and the side of protective cover 50 is rotatably arranged on boss 21, the free end of protective cover 50
Middle part is provided with the first deep-slotted chip breaker 52, and groove 22 is provided with the second deep-slotted chip breaker 24.First deep-slotted chip breaker 52 and the second deep-slotted chip breaker 24 are formed
The cavity that finger is stirred is available for, it is convenient to open protective cover 50.
The left and right sides of protective cover 50 is respectively provided with a clamp 53, and the two side of groove 22 is provided with what is be adapted with clamp 53
Neck 80, prevent space occur between protective cover 50 and groove 22.
The operating surface of handle 30 is transversely provided with some concave grooves 31 along it, increases the friction between hand and handle 30, prevents
Only use and slided during handle 30.
The free end of handle 30 is arcuation, saves manufacturing cost.
The utility model, when the electric current for needing to limit when operating is less than rated current, it can be adjusted by vernier knob
Section, it is no longer necessary to prepare other breakers, it is easy to use, cost is saved, the top of vernier knob is provided with protective cover and passed through
Lead sealing bar is locked, prevents everybody from being transferred to setting current, ensures circuit safety.
The utility model is not limited to above-mentioned preferred forms, and anyone should learn that under enlightenment of the present utility model
The structure change made, it is every that there is same or like technical scheme with the utility model, each fall within guarantor of the present utility model
Within the scope of shield.
Claims (10)
1. novel plastic shell circuit breaker, including shell, the shell is made up of base and upper lid, and the front of the upper lid, which is provided with, opens
Mouthful, the base is provided with major loop, trip unit and handle, and the handle passes through the opening, promotes the handle, described
Major loop is powered, if the electric current in the major loop is more than setting current, the trip unit tripping disconnects the major loop,
Characterized in that,
The upper lid is provided with vernier knob, and the upper lid is provided with protective cover, and the protective cover is locked by lead sealing bar, described
Vernier knob is connected with the trip unit, and transferring the vernier knob can be finely adjusted to setting current.
2. novel plastic shell circuit breaker as claimed in claim 1, it is characterised in that boss is covered with described, the opening is set
Put on the boss, the vernier knob is arranged on the lower section of the boss.
3. novel plastic shell circuit breaker as claimed in claim 2, it is characterised in that the both sides of the boss are respectively provided with one and can put
Carry the chamber groove of annex.
4. novel plastic shell circuit breaker as claimed in claim 3, it is characterised in that the front of the upper lid is provided with protective case, described
Protective case be provided with respectively with the boss, the first mounting hole of the vernier knob position correspondence, the second mounting hole, the protective case
Cover on the two chamber grooves.
5. novel plastic shell circuit breaker as claimed in claim 4, it is characterised in that the bottom of the protective case is provided with groove, described
Second mounting hole is arranged in the groove.
6. novel plastic shell circuit breaker as claimed in claim 5, it is characterised in that the lock pillar of C fonts, institute are provided with the groove
The left side that lock pillar is arranged on second mounting hole is stated, the protective cover is provided with the perforate corresponding with the lock pillar, described
Lock pillar passes through the perforate, and the lead sealing bar is through locked by the protective cover after the exposed parts of the lock pillar.
7. novel plastic shell circuit breaker as claimed in claim 5, it is characterised in that the protective cover is clamshell, the protection
The side of cover is rotatably arranged on the boss, and the middle part of the free end of the protective cover is provided with the first deep-slotted chip breaker, the groove
The second deep-slotted chip breaker is provided with, first deep-slotted chip breaker and second deep-slotted chip breaker form the cavity stirred for finger.
8. novel plastic shell circuit breaker as claimed in claim 5, it is characterised in that be respectively provided with left and right sides of the protective cover
One clamp, the two side of the groove are provided with the neck being adapted with the clamp.
9. novel plastic shell circuit breaker as claimed in claim 1, it is characterised in that the operating surface of the handle is set along its transverse direction
There are some concave grooves.
10. novel plastic shell circuit breaker as claimed in claim 1, it is characterised in that the free end of the handle is arcuation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720554167.1U CN206893581U (en) | 2017-05-18 | 2017-05-18 | Novel plastic shell circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720554167.1U CN206893581U (en) | 2017-05-18 | 2017-05-18 | Novel plastic shell circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206893581U true CN206893581U (en) | 2018-01-16 |
Family
ID=61342182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720554167.1U Active CN206893581U (en) | 2017-05-18 | 2017-05-18 | Novel plastic shell circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206893581U (en) |
-
2017
- 2017-05-18 CN CN201720554167.1U patent/CN206893581U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |