CN101958204A - Thermal overload relay - Google Patents
Thermal overload relay Download PDFInfo
- Publication number
- CN101958204A CN101958204A CN2010101040883A CN201010104088A CN101958204A CN 101958204 A CN101958204 A CN 101958204A CN 2010101040883 A CN2010101040883 A CN 2010101040883A CN 201010104088 A CN201010104088 A CN 201010104088A CN 101958204 A CN101958204 A CN 101958204A
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- China
- Prior art keywords
- mentioned
- overload relay
- thermal overload
- release lever
- chain
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- 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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- 239000000463 material Substances 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000005452 bending Methods 0.000 abstract description 6
- 230000035945 sensitivity Effects 0.000 abstract description 6
- 230000035939 shock Effects 0.000 abstract description 6
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 229920003266 Leaf® Polymers 0.000 description 34
- 238000010586 diagram Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000000153 supplemental effect Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/32—Thermally-sensitive members
- H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/64—Contacts
-
- 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
- H01H71/74—Means for adjusting the conditions under which the device will function to provide protection
- H01H71/7427—Adjusting only the electrothermal mechanism
- H01H2071/7454—Adjusting only the electrothermal mechanism with adjustable axis of transmission lever between bimetal element and trip lever
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Breakers (AREA)
- Thermally Actuated Switches (AREA)
Abstract
The invention relate to a thermal overload relay, comprising a lower case which is internally provided with a heating unit, a main bimetallic strip and a shifter; an upper case which is arranged above the lower case; a adjusting chain which is rotatably arranged on the upper case; a release lever which is rotatably arranged at a rotary bulge at one side of the adjusting chain, and rotates along the movement of the shifter; a reversing mechanism which can reverse along the rotary movement of the release lever; micrometer adjusting screws of which screws are bonded at the other side end of the adjusting chain; an adjusting knob which is contacted with the micrometer adjusting screws and adjusts the rotary angle of the adjusting chain; a supporting spring which is arranged at the rear part of the other side of the adjusting chain and support the adjusting chain; and a trip button which is located above the reversing structure to reverse the reversing structure by a current trip state, wherein the adjusting chain is formed by bending the bimetallic strip; and the bending part is provided with the rotary bulge and is rotatably bonded with the reversing structure. By adopting the structure, the deform of the temperature compensated bimetallic strip caused by mechanical shocks is prevented, which not only improves sensitivity to the temperature, but also improves the temperature characteristics of the environment using the thermal overload relay.
Description
Technical field
The present invention relates to be used to prevent to transship the thermal overload relay that is caused to the destruction of motor etc., especially a kind of distortion of the temperature-compensating bimetal leaf that extruding caused of the shift unit by preventing to be subjected to mechanical shock work, raising is to the sensitivity of temperature, and raising is to the thermal overload relay of the temperature characterisitic of the environment of use thermal overload relay.
Background technology
Generally speaking, thermal overload relay constitutes magnetic switch with electromagnetic contactor, when the electric current that puts on motor surpasses default current value, then prevents that by escape (Trip) circuit motor from being destroyed.
Promptly, under the situation of alternating current motor, usually portion's three-phase (R, S, T) alternating current that flows within it, and a certain the disconnection mutually in the above-mentioned three-phase and do not have electric current to flow, then electric current will concentrate on remaining phase, or when overload or overcurrent take place, the rising of temperature will destroy coil, therefore, for prevent to transship or the phase failure to the destruction of motor, use above-mentioned overload relay usually.
Fig. 1 and Fig. 2 are existing thermal overload relay schematic diagram, and wherein, Fig. 1 is existing thermal overload relay schematic diagram, and Fig. 2 is the longitudinal sectional drawing of Fig. 1.As depicted in figs. 1 and 2, existing thermal overload relay roughly comprises: calandria 14, be positioned at the overload relay bottom, and be connected in power supply and load, promptly on the circuit between motor, when taking place, the overcurrent or the phase failure generate heat; Switch portion is positioned at overload relay top, and above-mentioned heater 14 is inner and with the main bimetal leaf 13 of the heating bending of heater 14 with being positioned at, thus circuit between above-mentioned power supply of switch and the load.
At this, in lower casing 12 inside, the shift unit 15 that built-in driving is connected in main bimetal leaf 13, calandria 14 and moves with the bent horizontal of main bimetal leaf 13, and in its outside, usually possess three (three-phase alternating current is used) main terminals that connect the mains side electric wire, in addition, be connected in the upper casing 22 on above-mentioned lower casing 12 tops, be built-in with the release lever 23 that constitutes switch portion, inversion structures portion 26 etc.
In addition, in the prior art, be arranged on the above-mentioned release lever 23 of above-mentioned upper casing 22, possesses temperature-compensating bimetal leaf 24, and comprise the outstanding press section 25 that forms, to rotate, the middle body of inversion structures portion 26 is exerted pressure with the rotation interlock of said temperature compensation bimetal leaf 24.Said temperature compensation bimetal leaf 24, parallel when mobile at above-mentioned shift unit 15, will be passed to above-mentioned release lever 23 from the extruding force of above-mentioned shift unit ring 16, thus the rotation by above-mentioned release lever 23, switch is arranged at the terminal of above-mentioned inversion structures portion 26.
But, above-mentioned shift unit 15 is with the bending of above-mentioned main bimetal leaf 13, at any time carry out parallel moving, thereby make extruding force pass through above-mentioned shift unit ring 16, be passed to said temperature compensation bimetal leaf 24 at any time, therefore, with reducing the mechanical strength of said temperature compensation bimetal leaf 24, cause distortion, cause the escape characteristic variations of thermal overload relay, situation that can not escape in the time of also can causing producing overcurrent, thus instrument destroyed.
Summary of the invention
Therefore, the objective of the invention is to overcome the deficiency of prior art, and provide a kind of thermal overload relay, its extruding force with parallel mobile shift unit directly is not passed to the temperature-compensating bimetal leaf, and puts on release lever, prevents the distortion of the temperature-compensating bimetal leaf that mechanical shock causes, in the sensitivity that improves temperature, raising is to the temperature characterisitic of the environment of use thermal overload relay, by enlarging the adjusting range to operating current, applicable to various operating environments.
The object of the present invention is achieved like this: a kind of thermal overload relay is provided, comprises: lower casing is built-in with calandria, main bimetal leaf and shift unit; Upper casing is arranged at the top of above-mentioned lower casing; Adjust chain, rotatablely be arranged at above-mentioned upper casing; Release lever rotatably is arranged at the rotation projection that possesses in above-mentioned adjustment chain one side, and rotatablely moves with the mobile of shift unit; Inversion structures reverses with rotatablely moving of above-mentioned release lever; Micrometer adjusting screw, screw are incorporated into the end side of above-mentioned adjustment chain; Adjust knob, contact with above-mentioned micrometer adjusting screw and adjust the anglec of rotation of above-mentioned adjustment chain; Support spring is arranged at the opposite side rear of above-mentioned adjustment chain and supports above-mentioned adjustment chain; And the escape button, be positioned at above-mentioned inversion structures top, with the overcurrent escape state above-mentioned inversion structures that reverses; Wherein, above-mentioned adjustment chain forms by crooked bimetal leaf, possesses the rotation projection at bend, and rotatably is incorporated into above-mentioned upper casing.
In thermal overload relay of the present invention, above-mentioned release lever, form " Contraband " word shape by plastic material, one side end is contacted with above-mentioned inversion structures top, crooked pars intermedia rotatably is incorporated into the rotation projection that is formed on above-mentioned adjustment chain one side, and the opposite side end is contacted with above-mentioned shift unit, and rotatablely moves with parallel the moving of shift unit.
Preferably, also can comprise the counter-rotating bar, form the rotation projection at above-mentioned upper casing, the one side rotatably is incorporated into above-mentioned rotation projection, and the middle part is between above-mentioned inversion structures and above-mentioned escape button, and opposite side top is contacted with a side end of above-mentioned release lever.
In addition, above-mentioned support spring, the overlapping to the inside cone shaped spring of spring coil in the time of can adopting its compression.
Thermal overload relay of the present invention, to be arranged in the lower casing and directly not be passed to the temperature-compensating bimetal leaf with the extruding force of the crooked parallel mobile shift unit of main bimetal leaf, and put on release lever, prevent the distortion of the temperature-compensating bimetal leaf that mechanical shock causes, in the sensitivity that can improve to temperature, raising is to the temperature characterisitic of the environment of use thermal overload relay, in addition, by improving the assembleability of the switch portion in the thermal overload relay upper casing, reduce manufacturing cost, and, increase adjusting range to operating current by enlarging the anglec of rotation adjusted of adjusting chain, be applicable to various operating environments.
Below, the embodiment of the invention to the specific implementation above-mentioned purpose is elaborated in conjunction with the accompanying drawings.When present embodiment is described, same structure is adopted same names and symbol, and will omit the supplemental instruction that it is carried out.
Description of drawings
Fig. 1 is existing thermal overload relay schematic diagram;
Fig. 2 be Fig. 1 thermal overload relay along II-II line longitudinal sectional drawing;
Fig. 3 is the normal power-up state longitudinal sectional drawing of embodiment of the invention thermal overload relay 200;
Fig. 4 is upper casing 120 longitudinal sectional drawings of embodiment of the invention thermal overload relay 200 when the escape state.
Embodiment
Fig. 3 is the normal power-up state longitudinal sectional drawing of embodiment of the invention thermal overload relay 200, and Fig. 4 is upper casing 120 longitudinal sectional drawings of embodiment of the invention thermal overload relay 200 when the escape state.
As shown in Figure 3, the thermal overload relay 200 of the embodiment of the invention is provided with the calandria 111 and the main bimetal leaf 112 that constitute heater assembly in lower casing 110, and at the free end of above-mentioned main bimetal leaf 112 in conjunction with shift unit 113.At the upper junction of above-mentioned lower casing 110 shell 120 that closes, and switch portion 130 and contact portion 133 are arranged in the above-mentioned upper casing 120.
In the adjustment chain 131 and release lever 132 that constitute above-mentioned switch portion 130, directly being contacted with the shift unit 113 that is arranged in the above-mentioned lower casing 110 with temperature-compensating bimetal leaf in the prior art contacts, thereby the structure difference of the power that is squeezed, as shown in Figure 3, in thermal overload relay 200 of the present invention, adjust the function that chain 131 plays original temperature-compensating bimetal leaf for making, form with the bimetal leaf material bending.Promptly, above-mentioned adjustment chain 131, for making it play the effect of temperature-compensating bimetal leaf 140, crooked bimetal leaf forms it, also rotatably be incorporated into above-mentioned upper casing 120 and form rotation projection 141 in the side of bend, and be formed on the rotation projection 142 of opposite side side, release lever 132 rotatably is installed.
At this moment, preferably, the processing method of above-mentioned rotation projection 141,142 is as follows: circular pegs (not shown) is crimped on after the above-mentioned adjustment chain 131, can be by modes such as electric welding in conjunction with it, and be formed at the rotation projection 141 of bend side, can insert the hole (not shown) that is formed at upper casing 120 by being incorporated into the circular pegs of adjusting chain bend side, finish rotatable combination.
In addition, opposite side rear at above-mentioned adjustment chain 131, but form the support spring 145 that elastic bearing is adjusted chain 131, direction extruding with above-mentioned adjustment chain 131 adjustment knob 144 forwards, and in the end side of above-mentioned adjustment chain 131, screw is in conjunction with micrometer adjusting screw 143, thus the elastic force by above-mentioned support spring 145, and extruding is arranged at the lower cam curved surface of the adjustment knob 144 of upper casing 120 upper side.Above-mentioned micrometer adjusting screw 143 is by the anglec of rotation of the above-mentioned adjustment chain 131 of fine setting, make relay make accurate response to operating current, and as shown in Figure 3 and Figure 4, preferably, spring by selecting cone shape for use is as above-mentioned support spring 145, thereby through the adjustment of micrometer adjusting screw 143 with adjust the adjustment of knob 144, above-mentioned adjustment chain 131 rearward pushes and when compressing above-mentioned support spring 145, spring coil is superposeed to the inside, increase the scope that contracts of pushing with this general spring, enlarge current margin.
As shown in Figure 3, above-mentioned release lever 132, " Contraband " word shape that utilizes the plastic material of synthetic resin to be processed into, crooked pars intermedia rotatably is incorporated into the rotation projection 142 that is formed on above-mentioned adjustment chain 131 1 sides, and the opposite side end is contacted with above-mentioned shift unit 113, with parallel mobile the rotatablely moving of shift unit 113.Promptly, if it is crooked and drive above-mentioned shift unit 113 parallel moving because of main bimetal leaf such as overcurrent 112, then can directly push the release lever 132 that is contacted with shift unit 113, and above-mentioned release lever 132 is by the direct extruding of shift unit 113, with the rotation projection 142 that is formed at above-mentioned adjustment chain 131 1 sides is that the center is rotated counterclockwise, thereby extruding is positioned at the top of the inversion structures 150 of the terminal bottom of a side, so that above-mentioned inversion structures 150 is inverted to overcurrent escape state, break.
If thermal overload relay uses the long period, in the prior art, in that shift unit 113 is parallel when moving and directly pushing mobile temperature-compensating bimetal leaf, the release lever 132 that then is incorporated into said temperature compensation bimetal leaf one side end is rotated motion, reverse with release lever 132 extruding inversion structures, therefore, because of shift unit 113 direct extrusion temperature compensation bimetal leafs, make the impact of being unloaded repeatedly of temperature-compensating bimetal leaf, thereby cause distortion, but as previously mentioned, in thermal overload relay 200 of the present invention, by adjusting the effect that chain 131 plays temperature-compensating bimetal leaf 140, the not direct extrusion temperature compensation of shift unit 113 bimetal leaf 140, but inversion structures 150 is reversed by extruding release lever 132, prevent the distortion that temperature-compensating bimetal leaf 140 is produced by mechanical shock, when not only improving the sensitivity to temperature, also improve temperature characterisitic to the environment that uses thermal overload relay.
Preferably, also can comprise counter-rotating bar 170, form rotation projection 121 at above-mentioned upper casing 120, the one side rotatably is incorporated into above-mentioned rotation projection 121, the middle part is between above-mentioned inversion structures 150 and above-mentioned escape button 160, and opposite side top is contacted with a side end of above-mentioned release lever 132, thereby be pressed when pushing above-mentioned inversion structures 150 at escape button 160, or rotatablely moving during the above-mentioned inversion structures 150 of extruding by release lever 132, all extruding by above-mentioned counter-rotating bar 170, push the counter-rotating portion 151 of the above-mentioned inversion structures 150 of counter-rotating exactly, thereby prevent the error running of inversion structures 150.
Below, the operation principle of detailed description embodiment of the invention thermal overload relay.
If because of overcurrent etc. makes the free end of main bimetal leaf to the specific direction bending, and drive is contacted with above-mentioned free-ended above-mentioned shift unit 113 parallel moving, then will directly push the release lever 132 that is contacted with above-mentioned shift unit, and above-mentioned release lever 132 is by the direct extruding of shift unit 113, with the rotation projection 142 that is formed at above-mentioned adjustment chain 131 1 sides is that the center is rotated counterclockwise, make above-mentioned counter-rotating bar 170 accurately push counter-rotating portion 151 tops of the inversion structures 150 that is positioned at the pars intermedia bottom and make its counter-rotating, thereby make above-mentioned inversion structures 150 be inverted to overcurrent escape state, break.
Pass through said structure, thermal overload relay of the present invention, can prevent the distortion of the temperature-compensating bimetal leaf 140 that mechanical shock causes, not only improve sensitivity to temperature, but also raising is to the temperature characterisitic of the environment of use thermal overload relay, and, reduce manufacturing cost by improving the assembleability of switch portion 130 in the thermal overload relay upper casing 120.
The foregoing description is only unrestricted in order to explanation the present invention, those of ordinary skill in the art is to be understood that, can make amendment, be out of shape the present invention or be equal to replacement, and not break away from the spirit and scope of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (3)
1. a thermal overload relay (200), comprising: lower casing (110) is built-in with calandria (111), main bimetal leaf (112) and shift unit (113); Upper casing (120) is arranged at the top of above-mentioned lower casing (110); Adjust chain (131), the rotatable above-mentioned upper casing (120) that is arranged at; Release lever (132) rotatably is arranged at the rotation projection (142) that possesses in above-mentioned adjustment chain (131) one sides, and with mobile the rotatablely moving of shift unit (113); Inversion structures (150) reverses with rotatablely moving of above-mentioned release lever (132); Micrometer adjusting screw (143), screw are incorporated into the end side of above-mentioned adjustment chain (131); Adjust knob (144), contact with above-mentioned micrometer adjusting screw (143) and adjust the anglec of rotation of above-mentioned adjustment chain (131); Support spring (145) is arranged at the opposite side rear of above-mentioned adjustment chain (131) and supports above-mentioned adjustment chain (131); And escape button (160), be positioned at above-mentioned inversion structures (150) top, with the overcurrent escape state above-mentioned inversion structures (150) that reverses;
Wherein, above-mentioned adjustment chain (131) forms by crooked bimetal leaf, possesses rotation projection (141) at bend, and rotatably is incorporated into above-mentioned upper casing (120);
Above-mentioned release lever (132), form the ㄈ word shape by plastic material, one side end is contacted with above-mentioned inversion structures (150) top, crooked pars intermedia rotatably is incorporated into the rotation projection (142) that is formed on above-mentioned adjustment chain (131) one sides, and the opposite side end is contacted with above-mentioned shift unit (113), and rotatablely moves with parallel the moving of shift unit (113).
2. a kind of thermal overload relay according to claim 1 (200), it is characterized in that: also can comprise counter-rotating bar (170), form rotation projection (121) at above-mentioned upper casing (120), the one side rotatably is incorporated into above-mentioned rotation projection (121), the middle part is between above-mentioned inversion structures (150) and above-mentioned escape button (160), and opposite side top is contacted with a side end of above-mentioned release lever (132).
3. a kind of thermal overload relay according to claim 1 and 2 (200) is characterized in that: above-mentioned support spring (145), the overlapping to the inside cone shaped spring of spring coil in the time of can adopting its compression.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2009-0064350 | 2009-07-15 | ||
| KR1020090064350A KR100937234B1 (en) | 2009-07-15 | 2009-07-15 | The thermal overload relay |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101958204A true CN101958204A (en) | 2011-01-26 |
| CN101958204B CN101958204B (en) | 2013-07-31 |
Family
ID=41809907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101040883A Expired - Fee Related CN101958204B (en) | 2009-07-15 | 2010-02-02 | Thermal overload relay |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100937234B1 (en) |
| CN (1) | CN101958204B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102760613A (en) * | 2011-04-25 | 2012-10-31 | 三菱电机株式会社 | An electric adjusting method of a thermal overcurrent relay |
| CN103187213A (en) * | 2011-12-29 | 2013-07-03 | 上海良信电器股份有限公司 | Movement mechanism of thermal overload relay |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104319178A (en) * | 2014-10-31 | 2015-01-28 | 天水二一三电器有限公司 | Action mechanism with elastic touch bridge for thermal relay |
| KR102748062B1 (en) | 2022-10-27 | 2024-12-31 | 주식회사 에스지이엠디 | Thermal relay |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH071665A (en) * | 1993-06-15 | 1995-01-06 | Dainippon Ink & Chem Inc | Marking film |
| CN2487102Y (en) * | 2001-06-10 | 2002-04-17 | Lg产电株式会社 | Heating unit for heat overload relay |
| JP2002237249A (en) * | 2001-02-13 | 2002-08-23 | Fuji Electric Co Ltd | Thermal overload relay |
| US6459355B1 (en) * | 1999-12-01 | 2002-10-01 | Fuji Electric Co., Ltd. | Thermal overload relay |
| CN1501420A (en) * | 2002-11-15 | 2004-06-02 | Lg产电株式会社 | Thermal overload relay |
| JP2005044554A (en) * | 2003-07-24 | 2005-02-17 | Fuji Electric Fa Components & Systems Co Ltd | Thermal overload relay |
| KR200386836Y1 (en) * | 2005-03-21 | 2005-06-16 | 엘에스산전 주식회사 | A Thermal Overload Relay |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH071665B2 (en) * | 1988-09-20 | 1995-01-11 | 富士電機株式会社 | Inversion spring mechanism of thermal overload relay |
-
2009
- 2009-07-15 KR KR1020090064350A patent/KR100937234B1/en active Active
-
2010
- 2010-02-02 CN CN2010101040883A patent/CN101958204B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH071665A (en) * | 1993-06-15 | 1995-01-06 | Dainippon Ink & Chem Inc | Marking film |
| US6459355B1 (en) * | 1999-12-01 | 2002-10-01 | Fuji Electric Co., Ltd. | Thermal overload relay |
| JP2002237249A (en) * | 2001-02-13 | 2002-08-23 | Fuji Electric Co Ltd | Thermal overload relay |
| CN2487102Y (en) * | 2001-06-10 | 2002-04-17 | Lg产电株式会社 | Heating unit for heat overload relay |
| CN1501420A (en) * | 2002-11-15 | 2004-06-02 | Lg产电株式会社 | Thermal overload relay |
| JP2005044554A (en) * | 2003-07-24 | 2005-02-17 | Fuji Electric Fa Components & Systems Co Ltd | Thermal overload relay |
| KR200386836Y1 (en) * | 2005-03-21 | 2005-06-16 | 엘에스산전 주식회사 | A Thermal Overload Relay |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102760613A (en) * | 2011-04-25 | 2012-10-31 | 三菱电机株式会社 | An electric adjusting method of a thermal overcurrent relay |
| CN103187213A (en) * | 2011-12-29 | 2013-07-03 | 上海良信电器股份有限公司 | Movement mechanism of thermal overload relay |
| CN103187213B (en) * | 2011-12-29 | 2015-03-25 | 上海良信电器股份有限公司 | Movement mechanism of thermal overload relay |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100937234B1 (en) | 2010-01-15 |
| CN101958204B (en) | 2013-07-31 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
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Granted publication date: 20130731 Termination date: 20180202 |