CN109243935A - A kind of guide tracked small-size moulded case circuit breaker - Google Patents
A kind of guide tracked small-size moulded case circuit breaker Download PDFInfo
- Publication number
- CN109243935A CN109243935A CN201811432050.1A CN201811432050A CN109243935A CN 109243935 A CN109243935 A CN 109243935A CN 201811432050 A CN201811432050 A CN 201811432050A CN 109243935 A CN109243935 A CN 109243935A
- Authority
- CN
- China
- Prior art keywords
- circuit breaker
- draw bar
- breaker
- guide tracked
- moulded case
- 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
- 239000000956 alloy Substances 0.000 claims abstract description 14
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 claims abstract description 5
- 230000005611 electricity Effects 0.000 claims abstract description 3
- 230000007246 mechanism Effects 0.000 claims description 9
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 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 claims description 3
- 230000009471 action Effects 0.000 abstract description 4
- 230000008859 change Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/40—Combined electrothermal and electromagnetic mechanisms
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Breakers (AREA)
Abstract
A kind of guide tracked small-size moulded case circuit breaker, due to being provided with resistance alloys between the bimetal leaf of thermal overload release and the iron core of short-circuit release, it is provided with integral type draw bar simultaneously, bottom is provided with guide rail installation buckle, so that the present invention has excellent technical characteristic, due to being provided with integral type draw bar, it can effectively guarantee that tripping force and drop-away time are consistent after short circuit occurs for each interpolar of breaker, guarantee the true and reliable of snap action electric current, due to being provided with resistance alloys between bimetal leaf and armature, bimetal leaf can be effectively protected not to be burned out when passing through high current, the short circuit current of the effective limiting circuit breaker of energy simultaneously, due to using the multinomial measure for reducing breaker volume, so that the breaking capacity of this guide tracked small-size moulded case circuit breaker has reached the level of similar breaker of plastic casing, and It can be installed and used on guide rail as miniature circuit breaker, this guide tracked small-size moulded case circuit breaker is made to be widely used in architectural electricity.
Description
Technical field
The present invention relates to a kind of low-voltage electrical apparatuses, in particular relate to a kind of guide tracked small-size moulded case circuit breaker.
Background technique
Breaker of plastic casing is a kind of common distribution protection device, it has to load supplying and overload, short-circuit protection function
Can, it is widely used in electrical power distribution system.Breaker of plastic casing compared with the miniature circuit breaker of same specification, have breaking current it is big,
Overload capacity is by force and the advantages of stable working performance, but the breaker of plastic casing volume of traditional technology is larger, is not suitable for guide rail and installs,
Design it is a kind of not only had that breaker of plastic casing breaking current was big, overload capacity is strong and stable working performance, but also there is miniature circuit breaker
It is small in size, it is suitble to the breaker of plastic casing of guide rail installation advantage, has a vast market foreground.
Summary of the invention
It is an object of the invention to change the larger drawback of current breaker of plastic casing volume, design a kind of breaking current it is big,
Overload capacity is strong, stable working performance guide tracked small-size moulded case circuit breaker.
To achieve the above object, the technical solution adopted by the present invention is that: a kind of guide tracked small-size moulded case circuit breaker, including bottom
Shell, Pyromagnetic release, contact system, arc-chutes and handle actuating mechanism；
It is characterized by: the Pyromagnetic release includes thermal overload release and short-circuit release, the thermal overload is de-
It detains and is provided with resistance alloys between the bimetal leaf of device and the iron core of short-circuit release, the one of the bimetal leaf and resistance alloys
End is attempted by the guide tracked small-size moulded case circuit breaker moving contact external terminal by being flexible coupling respectively, the bimetal leaf and
The other end of resistance alloys is attempted by the moving contact end of the breaker by being flexible coupling；
The guide tracked small-size moulded case circuit breaker is additionally provided with the armature of integral type draw bar and the traction rod end；
Further setting, the integral type draw bar includes draw bar bracket and armature, the integral type draw bar
It is integrally suppressed by draw bar bracket with armature, positive stop lug boss is provided on the draw bar bracket, in the limit
It is provided with the draw bar movement lock of the guide tracked small-size moulded case circuit breaker on the left of the boss of position, is needed after the circuit breaker tripping
When detaining again, the draw bar movement lock directly hangs limit by the positive stop lug boss and realizes and detain again, when described
When breaker needs to thread off, draw bar movement releases the limit that hangs to draw bar movement lock, and draw bar acts lock movement
The limit of the tripping to handle actuating mechanism is released afterwards and makes circuit breaker tripping.
Further setting, the integral type draw bar bracket and armature can according to need, be set as two poles, three poles or
Quadrupole, with meet single-phase, phase three-wire three, three-phase and four-line difference for electric loading needs.
Further setting, the contact system includes integral type shaft, is provided in each pole of the integral type shaft
Moving contact is provided with contact end pressure adjusting knob spring in the shaft of the moving contact root, so that the dynamic touching of the breaker
Head and static contact elasticity press, stable and reliable in work.
Further setting, the pedestal lower part of the guide tracked small-size moulded case circuit breaker are provided with guide rail installation buckle, so as to
The small-size moulded case circuit breaker can be arranged in small-sized guide tracked distribution box as miniature circuit breaker.
Guide tracked small-size moulded case circuit breaker is invented above has the beneficial effect that armature and draw bar due to breaker
Whole compacting, it can effectively guarantee that tripping force and drop-away time are consistent after short circuit occurs for each interpolar of breaker, guarantee wink
When action current it is true and reliable.Since breaker of the invention uses compound connection, it is arranged between bimetal leaf and armature
There is resistance alloys, the bimetal leaf can be effectively protected and be not burned out when passing through high current, simultaneously because in the open circuit
Resistance alloys is provided in the short-circuit loop of device, the short circuit current of the effective limiting circuit breaker of energy makes the work of the breaker
Performance is more reliable and more stable.The handle tripping mechanism of traditional breaker of plastic casing is provided with big lock and small lock, and breaker is detained again
Breaker will can be just set to detain and thread off again by small this intermediate link of lock when with tripping, breaker of the invention eliminates
Small lock is directly provided with big lock, it simplifies the structure of breaker, while keeping the movement of breaker quicker reliable.By
Change in the compressed spring that traditional breaker of plastic casing is adjusted contact end pressure and be set as tension spring, sets integral type traction for draw bar
Bar eliminates the small lock of tripping mechanism, these measures not only effectively reduce the volume of breaker, while improving open circuit
The technical performance of device, so that the breaking capacity of this guide tracked small-size moulded case circuit breaker has reached the water of similar breaker of plastic casing
It is flat, and its volume greatly reduces, it can be installed and used on guide rail as miniature circuit breaker, be made this guide tracked small-sized
Breaker of plastic casing is widely used in architectural electricity.
Detailed description of the invention
Fig. 1 is the overall structure figure that the present invention removes breaker after shell；
Fig. 2 is the main structure chart after breaker closing of the present invention；
Fig. 3 is the main structure chart after breaker open operation of the present invention；
Fig. 4 is contact of breaker and flexible connection structure figure of the present invention；
Fig. 5 is breaker resistance alloys setting sectional view of the present invention；
Fig. 6 is breaker integral type drawing bar structure chart of the present invention.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached FIG. 1 to FIG. 6, it is clear that described
Embodiment be section Example of the invention, instead of all the embodiments.Based on the embodiment of the present invention, this field is common
Technical staff's all other embodiment obtained without making creative work, belongs to the scope of the present invention.
It should be noted that in the orientation or position of the instructions such as the term " front end ", " end ", " left side ", " right side "
Relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description of the present invention and simplification of the description, without referring to
Show or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot manage
Solution is limitation of the present invention.
A kind of guide tracked small-size moulded case circuit breaker, as shown in Figure 1, including bottom case 8, Pyromagnetic release, contact system, arc extinguishing
Room 9 and handle actuating mechanism 1；
Further setting, as shown in Figure 4, Figure 5, the Pyromagnetic release include thermal overload release and short circuit tripping
Device is provided with resistance alloys 4, double gold between the bimetal leaf 2 of the thermal overload release and the iron core 5 of short-circuit release
Belong to one end of piece 2 and resistance alloys 4 201 to be attempted by the moving contact of breaker external terminal 701 by being flexible coupling respectively, institute
It states the other end of bimetal leaf 2 and resistance alloys 4 and passes through the end for the moving contact 7 that 202 are attempted by the breaker of being flexible coupling；
The guide tracked small-size moulded case circuit breaker is additionally provided with integral type draw bar 3；
Further setting, as shown in Fig. 2, Fig. 3, Fig. 6, the integral type draw bar 3 includes draw bar bracket 304 and rank
Iron 303, the draw bar bracket 304 are suppressed with 303 entirety of armature, are provided on the draw bar bracket 304
Positive stop lug boss 302 is provided with the circuit breaker draw bar movement lock 102 in the left side of the positive stop lug boss 302, when described disconnected
After the tripping of road device when needing to detain again, the draw bar movement lock 102 limit is directly hung by the positive stop lug boss 302 and
Realization is detained again, and when the breaker needs to thread off, draw bar 3 is acted, and the positive stop lug boss 302 releases dynamic to draw bar
Make the limit that hangs of lock 102,102 movement of draw bar movement lock is released to 1 tripping 103 of circuit breaker handle actuating mechanism
It limits and makes circuit breaker tripping.
Further setting, as shown in fig. 6, the integral type draw bar and armature can according to need, be set as two poles,
Three poles or quadrupole, with meet single-phase, phase three-wire three, three-phase and four-line difference for electric loading needs.
Further setting, as shown in figure 4, the contact system includes moving contact 7, moving contact external terminal 701, stationary contact
First 703, static contact external terminal 702, integral type shaft 6 are provided with moving contact 7 in each pole of the integral type shaft 6, in institute
It states and is provided with contact end pressure adjusting knob spring 601 in the shaft 6 of 7 root of moving contact, so that the moving contact 7 of the breaker and quiet
703 elasticity of contact presses, stable and reliable in work.
Further setting, as shown in Figure 1,8 lower part of pedestal of the breaker is provided with guide rail installation buckle 801, so as to
The breaker of plastic casing can be arranged in small-sized guide tracked distribution box as miniature circuit breaker.
The operation program of breaker thermal overload release of the present invention is as follows: after the breaker overlond running regular hour,
The bimetal leaf 2 generates heat and is deformed, and when deforming to a certain extent, the push rod screw 204 on 2 top of bimetal leaf is pushed away
Dynamic draw bar 3 acts, and releases the limit that hangs of 3 pairs of draw bar movement locks 102, the tripping 103 of handle actuating mechanism 1 is dynamic
Make, the moving contact 7 of breaker acts rapidly under the action of main extension spring 101, makes breaker open operation；
The operation program of circuit breaker short circuit buckle releaser of the present invention is as follows: when short circuit occurs for loaded line, excessive electric current
So that generating sufficiently large electromagnetic force between iron core 5 and armature 303, the armature 303 is attracted by iron core 5, and draw bar 3 is dynamic
Make, so that the limit that hangs of 3 pairs of draw bar movement locks 102 releases, the tripping 103 of handle actuating mechanism 1 is acted, in main extension spring
The moving contact 7 of breaker acts rapidly under the action of 101, makes breaker open operation.
Obviously, the above embodiment is merely an example for clearly illustrating the present invention, and not to embodiment
It limits, for those of ordinary skill in the art, other different forms can also be made on the basis of the above description
Variation or variation, there is no necessity and possibility to exhaust all the enbodiments, and extended from this apparent
Variation or change it is still within the protection scope of the invention.
Claims (6)
1. a kind of guide tracked small-size moulded case circuit breaker, including bottom case, Pyromagnetic release, contact system, arc-chutes and handle movement
Mechanism；
It is characterized by: the Pyromagnetic release includes thermal overload release and short-circuit release, the thermal overload release
Bimetal leaf and short-circuit release iron core between be provided with resistance alloys；
The guide tracked small-size moulded case circuit breaker is provided with integral type draw bar；
The circuit breaker draw bar movement lock is provided on the left of the integral type draw bar.
2. guide tracked small-size moulded case circuit breaker according to claim 1, it is characterised in that: the bimetal leaf and alloy
Resistance one end, which passes through to be flexible coupling respectively, to be attempted by the moving contact of breaker external terminal, the bimetal leaf and alloy electricity
The other end of resistance is attempted by the moving contact end of the breaker by being flexible coupling.
3. guide tracked small-size moulded case circuit breaker according to claim 1, it is characterised in that: the integral type draw bar packet
Draw bar bracket and armature are included, the integral type draw bar is integrally suppressed by draw bar bracket with armature, described
It is provided with positive stop lug boss on integral type draw bar bracket, the draw bar of the breaker is provided on the left of the positive stop lug boss
Movement lock.
4. guide tracked small-size moulded case circuit breaker according to claim 3, it is characterised in that: the integral type draw bar branch
Frame and armature can according to need, and be set as two poles, three poles or quadrupole.
5. guide tracked small-size moulded case circuit breaker according to claim 1, it is characterised in that: the contact system includes one
Body formula shaft, respectively extremely interior in the integral type shaft are provided with moving contact, are provided in the shaft of the moving contact root
Contact end pressure adjusting knob spring.
6. guide tracked small-size moulded case circuit breaker according to claim 1, it is characterised in that: the guide tracked small-sized plastic-shell is disconnected
The pedestal lower part of road device is provided with guide rail installation buckle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811432050.1A CN109243935A (en) | 2018-11-28 | 2018-11-28 | A kind of guide tracked small-size moulded case circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811432050.1A CN109243935A (en) | 2018-11-28 | 2018-11-28 | A kind of guide tracked small-size moulded case circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109243935A true CN109243935A (en) | 2019-01-18 |
Family
ID=65074254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811432050.1A Pending CN109243935A (en) | 2018-11-28 | 2018-11-28 | A kind of guide tracked small-size moulded case circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109243935A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020075123A1 (en) * | 2000-12-18 | 2002-06-20 | Lias Edward Ethber | Circuit breaker with bypass conductor commutating current out of the bimetal during short circuit interruption and method of commutating current out of bimetal |
| CN1819096A (en) * | 2006-01-27 | 2006-08-16 | 上海电器科学研究所（集团）有限公司 | Thermomagnetic releaser and its off-indicator |
| CN101685728A (en) * | 2008-09-26 | 2010-03-31 | 浙江正泰电器股份有限公司 | Thermomagnetic tripper of breaker |
| CN202651023U (en) * | 2012-06-01 | 2013-01-02 | 浙江鼎威科技有限公司 | Molded case circuit breaker with shunting thermo tripping protection |
| CN204596735U (en) * | 2015-05-06 | 2015-08-26 | 温州高能电气有限公司 | Breaker of plastic casing and tripping mechanism thereof |
| CN105405722A (en) * | 2015-12-17 | 2016-03-16 | 北京明日电器设备有限责任公司 | Subminiature molded case circuit breaker |
| CN105869964A (en) * | 2015-01-19 | 2016-08-17 | 武汉杭久电气有限公司 | Implementation method for reducing short circuit protection time of electromagnetic release |
| CN206976267U (en) * | 2017-06-16 | 2018-02-06 | 罗格朗低压电器（无锡）有限公司 | A kind of Thermomagnetic type current protection system for breaker of plastic casing |
| CN209896012U (en) * | 2018-11-28 | 2020-01-03 | 北京明日电器设备有限责任公司 | Guide rail type small molded case circuit breaker |
-
2018
- 2018-11-28 CN CN201811432050.1A patent/CN109243935A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020075123A1 (en) * | 2000-12-18 | 2002-06-20 | Lias Edward Ethber | Circuit breaker with bypass conductor commutating current out of the bimetal during short circuit interruption and method of commutating current out of bimetal |
| CN1819096A (en) * | 2006-01-27 | 2006-08-16 | 上海电器科学研究所（集团）有限公司 | Thermomagnetic releaser and its off-indicator |
| CN101685728A (en) * | 2008-09-26 | 2010-03-31 | 浙江正泰电器股份有限公司 | Thermomagnetic tripper of breaker |
| CN202651023U (en) * | 2012-06-01 | 2013-01-02 | 浙江鼎威科技有限公司 | Molded case circuit breaker with shunting thermo tripping protection |
| CN105869964A (en) * | 2015-01-19 | 2016-08-17 | 武汉杭久电气有限公司 | Implementation method for reducing short circuit protection time of electromagnetic release |
| CN204596735U (en) * | 2015-05-06 | 2015-08-26 | 温州高能电气有限公司 | Breaker of plastic casing and tripping mechanism thereof |
| CN105405722A (en) * | 2015-12-17 | 2016-03-16 | 北京明日电器设备有限责任公司 | Subminiature molded case circuit breaker |
| CN206976267U (en) * | 2017-06-16 | 2018-02-06 | 罗格朗低压电器（无锡）有限公司 | A kind of Thermomagnetic type current protection system for breaker of plastic casing |
| CN209896012U (en) * | 2018-11-28 | 2020-01-03 | 北京明日电器设备有限责任公司 | Guide rail type small molded case circuit breaker |
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