CN106158537A - The Thermal protection assembly of electromagnetic protection device - Google Patents
The Thermal protection assembly of electromagnetic protection device Download PDFInfo
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- CN106158537A CN106158537A CN201510209941.0A CN201510209941A CN106158537A CN 106158537 A CN106158537 A CN 106158537A CN 201510209941 A CN201510209941 A CN 201510209941A CN 106158537 A CN106158537 A CN 106158537A
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- energy storage
- bimetal leaf
- adjusting rod
- protection device
- thermal protection
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Abstract
According to the Thermal protection assembly that present invention is disclosed a kind of electromagnetic protection device, electromagnetic protection device is used for breaker, and Thermal protection assembly includes bimetal leaf, and bimetal leaf is directly installed on busbar, and the working face of bimetal leaf is inclined-plane.Thermal protection assembly in the electromagnetic protection device of the present invention is triggered energy storage component by bimetal leaf and completes trip action, simple in construction, and quick action and energy storage component can keep the constant of tripping force.The working face of bimetal leaf is inclined-plane, and the diverse location on inclined-plane can provide the different interval between bimetal leaf and energy storage component, to obtain different overload currents.
Description
Technical field
The present invention relates to Low Voltage Electrical Apparatus, more particularly, it relates to the electromagnetic protection device in device for switching.
Background technology
Overload current and short circuit current can be protected by electromagnetic protection device.Electrically, the protection of such as breaker is generally controlled switch by electromagnetic protection device.Electromagnetic protection device is more applied to the breaker of low capacity.The large capcity breaker higher than 1000A for the rated current more uses electronic type to protect, and i.e. by the electric current in transformer induced loop, and is monitored electric current by controller, is carried out action by magnetic release.In the large capcity breaker higher than 1000A for the rated current, seldom use electromagnetic protection device.
But if from the consideration of market demand and use cost, if able to use electromagnetic protection device to be obtained in that higher cost performance in 1000A and above large capcity breaker, thus have preferable application market.In traditional electromagnetic protection device, Thermal protection assembly uses eddy heating for heating bimetal leaf, promotes it to produce thermal deformation, relies on this deforming thrust to inspire circuit breaker operation mechanism action.Magnetic protection assembly uses the counter-force of electromagnet regulation spring and air gap to reach snap action adjustable magnification, and is inspired operating mechanism tripping operation by a series of actions rod member.The Thermal protection assembly of traditional electromagnetic protection device is owing to using the technology of eddy-current heating; thus more difficult control; and amount of parts is more; cost advantage is poor; the thrust that other Thermal protection bi-metal plate deformed produces is generally less; for the operating mechanism of large capcity breaker, requirement that bigger tripping force, so bimetal leaf is difficult to push directly on mechanism's tripping operation.Traditional magnetic protection assembly needs to regulate counter spring force and air gap simultaneously; therefore there are two Parameters variation in which; more difficult design calculates and checking; and counter spring force regulation to often result in regulation power bigger; make troubles to user; it is more that other magnetic protection inspires system parts, hardly results in preferable breaker quick acting speed.
Content of the invention
It is contemplated that the Thermal protection assembly proposing a kind of novel electromagnetic protection device be applicable to large capcity breaker.
According to one embodiment of the invention, proposing the Thermal protection assembly of a kind of electromagnetic protection device, electromagnetic protection device is used for breaker, and Thermal protection assembly includes bimetal leaf, and bimetal leaf is directly installed on busbar, and the working face of bimetal leaf is inclined-plane.
In one embodiment, bimetal leaf is bent into " L " shape, and the lateral part of " L " shape bimetal leaf is directly installed on busbar, and the top of the longitudinal component of " L " shape bimetal leaf is working face.
In one embodiment, Thermal protection assembly coordinates with energy storage component, and when there is overload current, Thermal protection assembly triggers energy storage component action, and energy storage component hits the operating mechanism of breaker.
In one embodiment, energy storage component is snapped when normal work, there is interval between energy storage component and the working face of bimetal leaf, and when there is overload current, bi-metal plate deformed contacts with energy storage component so that energy storage component is tripped and action.
In one embodiment, energy storage component includes energy storage bar, bimetallic adjusting rod and energy-stored spring.When normal work, bimetallic adjusting rod does not contacts with the working face of bimetal leaf, bimetallic adjusting rod and the mutual snap close of energy storage bar, energy-stored spring energy storage.When there is overload current, bi-metal plate deformed promotes bimetallic adjusting rod to trip with energy storage bar, and energy-stored spring releases energy, drives bimetallic adjusting rod to hit the operating mechanism of breaker.
In one embodiment, bimetallic adjusting rod has contact bar, and when there is overload current, the working face of bimetal leaf contacts with contacting bar to promote bimetallic adjusting rod.
In one embodiment, contacting the diverse location on the working face of the quasi-bimetal leaf of pole pair, the interval between contact bar and working face is different to obtain different overload currents.
Thermal protection assembly in the electromagnetic protection device of the present invention is triggered energy storage component by bimetal leaf and completes trip action, simple in construction, and quick action and energy storage component can keep the constant of tripping force.The working face of bimetal leaf is inclined-plane, and the diverse location on inclined-plane can provide the different interval between bimetal leaf and energy storage component, to obtain different overload currents.
Brief description
The above and other feature of the present invention, character and advantage are by by becoming apparent with the description of embodiment below in conjunction with the accompanying drawings, and reference identical in the accompanying drawings represents identical feature all the time, wherein:
Fig. 1 discloses the structure chart of electromagnetic protection device.
Fig. 2 discloses the structure chart of the Thermal protection assembly according to the present invention.
Fig. 3 discloses the structure chart of magnetic protection assembly in electromagnetic protection device.
Fig. 4 disclose Thermal protection assembly and magnetic protection assembly assemble after structure chart.
Fig. 5 discloses the assembly structure figure of several pyromagnetic protected location and base.
Fig. 6 discloses the structure chart of upper shell and base in electromagnetic protection device.
Fig. 7 A, Fig. 7 B and Fig. 7 C disclose the structure chart of energy storage component in electromagnetic protection device.
Fig. 8 A and Fig. 8 B discloses the structure chart of adjusting part in electromagnetic protection device.
Fig. 9 A and Fig. 9 B discloses the mounting structure figure of adjusting part in electromagnetic protection device.
Detailed description of the invention
The present invention proposes a kind of Thermal protection assembly, and this Thermal protection assembly is applied to pyromagnetic protected location, and pyromagnetic protected location is applicable to multipole circuit breaker, enables to the electromagnetic protection device of multipole circuit breaker tripping operation.Fig. 1 discloses the structure chart of electromagnetic protection device.As it can be seen, this electromagnetic protection device includes: multipole protected location the 105th, energy storage component the 106th, adjusting part 107 that the 112nd, upper shell the 111st, base is made up of several pyromagnetic protected locations 104.The assembled shell forming electromagnetic protection device of upper shell 111 and base 112, in the shell that multipole protected location the 105th, energy storage component 106 and adjusting part 107 are arranged on upper shell 111 and base 112 is formed.Each pyromagnetic protected location 104 is arranged on wherein extremely going up of breaker, a corresponding circuitry phase, and each pyromagnetic protected location 104 is protected assembly 103 to be assembled to form by Thermal protection assembly 102 and magnetic.Several pyromagnetic protected locations 104 are fixed on base 112, form multipole protected location 105, and multipole protected location 105 has the bar 501 for regulating the air gap between the static iron core in magnetic protection assembly 103 and dynamic iron core.Energy storage component is arranged on upper shell 101, and energy storage component includes energy storage bar the 602nd, bimetallic adjusting rod the 601st, energy-stored spring and regulation screw 604.Energy storage component 106 coordinates with Thermal protection assembly 102.Adjusting part 107 has the first adjusting rod 171 and the second adjusting rod 172.First adjusting rod 171 coordinates with Thermal protection assembly 102 and energy storage component 106, regulates overload current.Second adjusting rod 172 coordinates with bar 501, is regulated the size of wink streaming current by regulating air gap.
As in figure 2 it is shown, Fig. 2 discloses the structure of Thermal protection assembly in electromagnetic protection device.Thermal protection assembly 102 is made up of bimetal leaf 121.Bimetal leaf 121 is bent to form " L " shape, and the bottom of bimetal leaf 121, the i.e. lateral part of " L " shape are fastened directly on busbar 123 by screw 124.The top at the top of bimetal leaf 121, the i.e. longitudinal component of " L " shape forms contact jaw.The contact surface 122 of contact jaw is inclined-plane.Inclined-plane 122 is as the working face of bimetal leaf 121 so that overload protection adjustable magnification.
As it is shown on figure 3, Fig. 3 discloses the structure chart of magnetic protection assembly in electromagnetic protection device.Magnetic protection assembly 103 includes that the 303rd, static iron core moves iron core the 302nd, static iron core support and the 305th, move iron core bracket the 301st, rotating shaft and the 304th, regulate support 306, the 307th, torque spring 308, the 310th, back-moving spring 309.Static iron core 303 is combined by multilayer magnetic conduction sheet, and static iron core 303 is arranged on static iron core support 305.Static iron core 303 and static iron core support 305 are all in frame-type, and middle formation through-hole structure, through-hole structure passes through for busbar 123.Dynamic iron core 302 is arranged on dynamic iron core bracket 301.Dynamic iron core bracket 301 is arranged on static iron core support 305 by rotating shaft 304, and dynamic iron core bracket 301 can 304 rotate relative to static iron core support 305 and static iron core 303 around the shaft with dynamic iron core 302.Regulation support the 306th, 307 respectively against two sidewalls of static iron core support 305 inner side arrange.The 306th, regulation support 307 is similarly installed in rotating shaft 304, and the 306th, regulation support 307 304 rotates as dynamic iron core bracket 301 around the shaft.Regulation support the 306th, 307 extended leg 306H, 307H each with vertically extension.The 306th, regulation support also has one group of spring attachment point 306B, 307B on 307.The quantity of spring attachment point 306B, 307B is respectively multiple, be formed at regulation support the 306th, 307 bending place and position mutually corresponding.Torque spring 308 is enclosed within rotating shaft 304, and torque spring 308 is fixed by regulation support 306, and one of them pin of torque spring 308 is fixed on one of them spring attachment point 306B of regulation support 306, and another pin is free end.Being similar to, torque spring 310 is enclosed within rotating shaft 304, and torque spring 310 is fixed by regulation support 307, and one of them pin of torque spring 310 is fixed on one of them spring attachment point 307B of regulation support 307, and another pin is free end.The 306th, regulation support also has block block on 307 and contact with the contact surface on dynamic iron core bracket 301 respectively so that regulates support and the 306th, 307 exerts a force dynamic iron core bracket 301.Dynamic iron core bracket 301 by symmetrically arranged regulation support the 306th, 307 and symmetrically arranged torque spring the 308th, 310 obtain fixing interior counter-force.By regulation torque spring the 308th, 310 one of them pin at regulation support the 306th, the spring attachment point on 307, it is possible to obtain different fixing in counter-force.Also being cased with back-moving spring 309 in rotating shaft 304, back-moving spring 309 is the torque spring with the long pin of frame-type.Back-moving spring 309 is arranged between regulation support 306 and 307, and the long pin of one of them frame-type of back-moving spring 309 relies on dynamic iron core bracket 301, and the long pin of another frame-type is fixed on Thermal protection assembly 102.In magnetic protection assembly 103 after assembling, exist between static iron core 303 and dynamic iron core 302 and rotate air gap 311.
As shown in Figure 4, Fig. 4 disclose Thermal protection assembly and magnetic protection assembly assemble after structure chart.Thermal protection assembly 102 and magnetic protection assembly 103 assemble, and busbar 123 passes through the through hole in the middle of static iron core 303 and static iron core support 305, passing through between rotating shaft 304 and dynamic iron core bracket 301 of bimetal leaf 121.The long pin of one frame-type of back-moving spring 309 is fixed on Thermal protection assembly 102, as it can be seen, the long pin of this framework is embedded in the gap that the lateral part of busbar 123 and bimetal leaf 121 is formed.Forming pyromagnetic protected location 104 after Thermal protection assembly 102 and magnetic protection assembly 103 assembling, this pyromagnetic protected location 104 is for a certain pole in multi-phase circuit breaker, corresponding a certain circuitry phase.
As it is shown in figure 5, Fig. 5 discloses the structure chart that several pyromagnetic protected location assembles with base.Fig. 5 is the view shown from the dorsal part direction of Fig. 1.Several pyromagnetic protected locations 104 are fixed by screws on base 112, to form multipole protected location 105.Multipole protected location 105 coordinates with multipole circuit breaker, the pole in the corresponding multipole circuit breaker of each pyromagnetic protected location 104, is used for a circuitry phase.Multipole protected location 105 has bar 501, and bar 501 is arranged in the gathering sill being formed after being spliced by upper shell 111 and base 112.With reference to shown in Fig. 6, forming shell, form gathering sill 101A and 101B in shell after upper shell 111 and base 112 splicing, bar 501 slides in gathering sill 101A and 101B.Forming ramp structure on the position of each pyromagnetic protected location 104 corresponding on bar 501, each ramp structure includes two inclined-planes 502 and 503, respectively the regulation support 306 and 307 in each pyromagnetic protected location 104 corresponding.Inclined-plane 502 is corresponding with regulation support 306, and the extended leg 306H of regulation support 306 contacts with inclined-plane 502.Inclined-plane 503 is corresponding with regulation support 307, and the extended leg 307H of regulation support 307 contacts with inclined-plane 503.Back-moving spring 309 produces moment of torsion so that regulation support 306 and 307 rotates towards the direction of bar 501, and under the effect of back-moving spring 309, extended leg 306H, 307H of regulation support 306 and 307 is pressed on inclined-plane the 502nd, on 503 and keep certain pressure all the time.Back-moving spring 309 makes extended leg 306H, 307H be pressed on inclined-plane all the time the 502nd, on 503, when bar 501 moves, extended leg 306H, 307H and inclined-plane the 502nd, 503 contact position change, this change make extended leg 306H, 307H drive regulation support the 306th, 307 rotate around axle 304.Owing to one of them pin of torque spring 308 and 310 is integrally fixed at regulation support the 306th, on 307, when regulate support the 306th, 307 rotation when, torque spring 308 and 310 can be driven to rotate.The 308th, torque spring 310 drives dynamic iron core bracket 301 304 to rotate around the shaft, so that dynamic air gap 311 between iron core 302 and static iron core 303 changes.Therefore so that bar 501 moves along gathering sill 101A and 101B, just the regulation for air gap 311 can be realized by hook.With continued reference to shown in Fig. 5, bar 501 has geared parts 504, can be moved along gathering sill 101A and 101B drive rod 501 by geared parts 504.
With reference to Fig. 7 A, Fig. 7 B and Fig. 7 C, disclose the structure chart of energy storage component in electromagnetic protection device.Wherein Fig. 7 B is the sectional view of part A in Fig. 7 A, and Fig. 7 C is the sectional view of part B in Fig. 7 A.Fig. 7 A is the view shown from the dorsal part direction of Fig. 1.Energy storage component is arranged on upper shell 101, and energy storage component includes energy storage bar the 602nd, bimetallic adjusting rod the 601st, energy-stored spring and regulation screw 604.Wherein energy-stored spring is multiple, including energy-stored spring 603 and energy-stored spring 610.Bimetallic adjusting rod 601 extremely all coordinates across whole upper shell 101, multiple with multipole circuit breaker.Position in each pole of corresponding multipole circuit breaker; bimetallic adjusting rod 601 includes a contact bar 601B; each contact bar 601B and a pyromagnetic protected location 104 are corresponding; contact bar 601B coordinates with the bimetal leaf 121 of the Thermal protection unit in this pyromagnetic protected location 104; contact bar 601B coordinates with the inclined-plane 122 on bimetal leaf 121 top; there is interval between contact bar 601B and inclined-plane 122 when normal work, bimetal leaf 121 deformation when overload occurs makes inclined-plane 122 and contacts bar 601B and contact.Bimetallic adjusting rod 601 also includes that locking-bar 601A, locking-bar 601A make bimetallic adjusting rod 601 interconnect with the form of snap close with energy storage bar 602.As seen in figure 7 c, locking-bar 601A and the snap close face 602A of energy storage bar 602 forms snap close.Regulation screw 604, for regulating the snap close amount of locking-bar 601A and snap close face 602A, rotates regulation screw 604, and the contact area between locking-bar 601A and snap close face 602A, i.e. snap close amount is changed.Energy-stored spring 603 is connected to bimetallic adjusting rod 601.When bimetal leaf 121 temperature distortion; contact bar 601B can be promoted; and driving bimetallic adjusting rod 601 to rotate, bimetallic adjusting rod 601 rotates around it center 601C and rotates, after bimetallic adjusting rod 601 rotates; locking-bar 601A trips with snap close face 602A; after tripping, energy-stored spring 603 drives bimetallic adjusting rod 601, and hits the operating mechanism of breaker under the cooperation of energy-stored spring 610; make operating mechanism produce dropout open circuit, reach the function of overload protection.In the energy storage component of the present invention, bimetal leaf 121 plays the effect of triggering, and the action hit is driven by energy-stored spring 603 and energy-stored spring 610, and therefore, the operating physical force hitting operating mechanism is stable.
Fig. 8 A and Fig. 8 B discloses the structure chart of adjusting part in electromagnetic protection device.Fig. 9 A and Fig. 9 B discloses the mounting structure figure of adjusting part.As it can be seen, adjusting part 107 is arranged on the pedestal of breaker.Adjusting part 107 includes mounting bracket the 173rd, the first adjusting rod 171 and the second adjusting rod 172.First adjusting rod 171 and the second adjusting rod 172 are rotatably installed in mounting bracket 173.With the junction of mounting bracket 173, there is packing ring 705 at the first adjusting rod the 171st, the second adjusting rod 172.The middle part of the first adjusting rod 171 has the first regulation gear 704, and the bottom centre of the first adjusting rod 171 has the first projection 708, and the bottom of the first adjusting rod 171 also has conical projections 701, and the tapered end of conical projections 701 has positioning bar.With reference to Fig. 8 A, upper shell 101 is provided with support 161, the bending part of support 161 has installing hole 605.First projection 708 of the first adjusting rod is arranged in installing hole 605, forms revolute pair.The positioning bar of the conical projections 701 of the first adjusting rod 171 is inserted in the regulating tank 601F of bimetallic adjusting rod 601.The middle part of the second adjusting rod 172 has the second regulation gear 703, and the bottom of the second adjusting rod 172 has the 3rd regulation gear 702, and the bottom centre of the second adjusting rod 172 has the second projection 707.With reference to Fig. 8 A, upper shell 101 has installing hole 606.Second projection 707 of the second adjusting rod is arranged in installing hole 606, forms revolute pair.3rd regulation gear 702 of the second adjusting rod is engaged with the geared parts 504 on bar 501.So that rotate during the first adjusting rod the 171st, the second adjusting rod 172 more accurate, mounting bracket 173 also has stepping support, the two ends of stepping support are profile of tooth end, and profile of tooth end 706 contacts with the first regulation gear 704 and is engaged, and profile of tooth end 705 contacts with the second regulation gear 705 and is engaged.When the first adjusting rod 171 or the second adjusting rod 172 rotate, profile of tooth end and regulation gear make adjusting rod stepping in the way of a tooth every time rotate.In other examples, the first adjusting rod 171 and the second adjusting rod 172 also can use the mode of damping rotary.With reference to Fig. 9 A and Fig. 9 B, adjusting part 107 coordinates with geared parts 504 and bimetallic adjusting rod 601 respectively, realizes overload current and the regulation of snap action electric current.The positioning bar of the conical projections 701 of the first adjusting rod 171 is inserted in the regulating tank 601F of bimetallic adjusting rod 601, when rotating the first adjusting rod 171, the positioning bar driving conical projections 701 is subjected to displacement, and positioning bar drives bimetallic adjusting rod 601 transverse shifting by regulating tank 601F.Because the working face of bimetal leaf 121 is inclined-plane 122, therefore after bimetallic adjusting rod 601 transverse shifting, distance F between its contact bar 601B and inclined-plane 122 is changed.The size of overload current can be regulated after changing distance F.3rd regulation gear 702 of the second adjusting rod 172 is engaged with the geared parts 504 on bar 501.Rotating the second adjusting rod 172, by bite strap lever 501 transverse shifting of gear, the size of the dynamic air gap between iron core and static iron core of regulation after bar 501 transverse shifting, the size of air gap changes the size that can regulate wink streaming current.Thermal protection assembly in the electromagnetic protection device of the present invention is triggered energy storage component by bimetal leaf and completes trip action, simple in construction, and quick action and energy storage component can keep the constant of tripping force.The working face of bimetal leaf is inclined-plane, and the diverse location on inclined-plane can provide the different interval between bimetal leaf and energy storage component, to obtain different overload currents.
Above-described embodiment is available to be familiar with person in the art and realizes or use the present invention's; those skilled in the art can be without departing from the present invention in the case of the inventive idea; make various modifications or change to above-described embodiment; thus protection scope of the present invention is not limited by above-described embodiment, and should be the maximum magnitude meeting the inventive features that claims are mentioned.
Claims (7)
1. a Thermal protection assembly for electromagnetic protection device, described electromagnetic protection device is used for breaker,
It is characterized in that, described Thermal protection assembly includes bimetal leaf, and bimetal leaf is directly installed on busbar,
The working face of described bimetal leaf is inclined-plane.
2. the Thermal protection assembly of electromagnetic protection device as claimed in claim 1, it is characterised in that institute
State bimetal leaf to be bent intoShape,The lateral part of shape bimetal leaf is directly installed on busbar
On,The top of the longitudinal component of shape bimetal leaf is working face.
3. the Thermal protection assembly of electromagnetic protection device as claimed in claim 1, it is characterised in that institute
Stating Thermal protection assembly to coordinate with energy storage component, when there is overload current, Thermal protection assembly triggers energy storage
Assembly action, energy storage component hits the operating mechanism of breaker.
4. the Thermal protection assembly of electromagnetic protection device as claimed in claim 3, it is characterised in that institute
State energy storage component to be snapped when normal work, exist between energy storage component and the working face of bimetal leaf
Interval, when there is overload current, bi-metal plate deformed contacts with energy storage component so that energy storage component
Trip and action.
5. the Thermal protection assembly of electromagnetic protection device as claimed in claim 4, it is characterised in that institute
State energy storage component and include energy storage bar, bimetallic adjusting rod and energy-stored spring；
When normal work, bimetallic adjusting rod does not contacts with the working face of bimetal leaf, and bimetallic is adjusted
Pole and the mutual snap close of energy storage bar, energy-stored spring energy storage；
When there is overload current, bi-metal plate deformed promotes bimetallic adjusting rod to trip with energy storage bar,
Energy-stored spring releases energy, drives bimetallic adjusting rod to hit the operating mechanism of breaker.
6. the Thermal protection assembly of electromagnetic protection device as claimed in claim 4, it is characterised in that institute
State bimetallic adjusting rod and there is contact bar, when overload current occurs, the working face of bimetal leaf with connect
Feeler lever contacts to promote bimetallic adjusting rod.
7. the Thermal protection assembly of electromagnetic protection device as claimed in claim 6, it is characterised in that institute
State the diverse location on the working face of the contact quasi-bimetal leaf of pole pair, between contacting between bar and working face
Every difference to obtain different overload currents.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510209941.0A CN106158537B (en) | 2015-04-28 | 2015-04-28 | The Thermal protection component of electromagnetic protection device |
| EP16785894.3A EP3291275B1 (en) | 2015-04-28 | 2016-04-22 | Thermomagnetic protection device, thermal protection component and magnetic protection component |
| PCT/CN2016/079969 WO2016173463A1 (en) | 2015-04-28 | 2016-04-22 | Thermomagnetic protection device, thermal protection component and magnetic protection component |
| ES16785894T ES2790873T3 (en) | 2015-04-28 | 2016-04-22 | Magnetothermic protection device, thermal protection component and magnetic protection component |
| RU2017140336A RU2696005C2 (en) | 2015-04-28 | 2016-04-22 | Thermomagnetic protection device, thermal protection assembly and magnetic protection assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510209941.0A CN106158537B (en) | 2015-04-28 | 2015-04-28 | The Thermal protection component of electromagnetic protection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106158537A true CN106158537A (en) | 2016-11-23 |
| CN106158537B CN106158537B (en) | 2019-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510209941.0A Active CN106158537B (en) | 2015-04-28 | 2015-04-28 | The Thermal protection component of electromagnetic protection device |
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| Country | Link |
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| CN (1) | CN106158537B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115102335A (en) * | 2022-06-06 | 2022-09-23 | 深圳市腾源建设集团有限公司 | Energy-saving motor of multi-pole speed-regulating fresh air system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| JP2011238550A (en) * | 2010-05-13 | 2011-11-24 | Terasaki Electric Co Ltd | Electromagnet device for immediately tripping circuit breaker |
-
2015
- 2015-04-28 CN CN201510209941.0A patent/CN106158537B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| JP2011238550A (en) * | 2010-05-13 | 2011-11-24 | Terasaki Electric Co Ltd | Electromagnet device for immediately tripping circuit breaker |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115102335A (en) * | 2022-06-06 | 2022-09-23 | 深圳市腾源建设集团有限公司 | Energy-saving motor of multi-pole speed-regulating fresh air system |
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