CN204596718U - For top cover block and the low voltage switching devices of low voltage switching devices - Google Patents
For top cover block and the low voltage switching devices of low voltage switching devices Download PDFInfo
- Publication number
- CN204596718U CN204596718U CN201520123740.4U CN201520123740U CN204596718U CN 204596718 U CN204596718 U CN 204596718U CN 201520123740 U CN201520123740 U CN 201520123740U CN 204596718 U CN204596718 U CN 204596718U
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- China
- Prior art keywords
- top cover
- low voltage
- switching devices
- voltage switching
- cover block
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/60—Mechanical arrangements for preventing or damping vibration or shock
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
- H01H50/18—Movable parts of magnetic circuits, e.g. armature
- H01H50/30—Mechanical arrangements for preventing or damping vibration or shock, e.g. by balancing of armature
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
- H01H50/18—Movable parts of magnetic circuits, e.g. armature
- H01H50/30—Mechanical arrangements for preventing or damping vibration or shock, e.g. by balancing of armature
- H01H50/305—Mechanical arrangements for preventing or damping vibration or shock, e.g. by balancing of armature damping vibration due to functional movement of armature
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- 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
- H01H71/02—Housings; Casings; Bases; Mountings
- H01H71/0207—Mounting or assembling the different parts of the circuit breaker
- H01H71/0228—Mounting or assembling the different parts of the circuit breaker having provisions for interchangeable or replaceable parts
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Electromagnets (AREA)
Abstract
The utility model relates to a kind of top cover block (30) for low voltage switching devices (1), wherein, low voltage switching devices (1) comprises electromagnetic driver (11) and switch contact element (15), the armature (14) that electromagnetic driver has fixing yoke (12) and can move relative to yoke (12), contact can close along moving of axis and open by armature (14) of switch contact element.Top cover block (30) comprises the parts (32) for convergent mode of motion, once contact occurs in the contact of switch contact element (15), then these parts make armature motion slow down due to the motion of armature (14) on yoke (12) direction in the process of Closing Switch contact element (15).The utility model also relates to a kind of low voltage switching devices.
Description
Technical field
The utility model relates to a kind of top cover block for low voltage switching devices, low voltage switching devices comprises electromagnetic driver and switch contact element, the armature that electromagnetic driver has fixing yoke and can move relative to yoke, contact can close along moving of axis and open by armature of switch contact element.The utility model also relates to a kind of low voltage switching devices.
Background technology
Have in low voltage switching devices, the demand of increasing power during given structural volume, can be accessed.Therefore higher contact force is needed, to control now to become higher switching current.At this, interrupting process must carry out on all working scope preset of excitation coil, namely default voltage.
In order to consider the contact force added when power is higher, need that electromagnetic driver is designed stronger.This also can perceive with the switching noise increased with the connection energy obviously increased with therefore.According to the use of low voltage switching devices, switching noise can be interfering.
Reduce switching noise such as to realize by reducing turn-on voltage by circuit.Circuit can be connected to and control between feed voltage and the coil of electromagnetic driver.In order to connect low voltage switching devices, only so-called under voltage, the minimum supply power voltage that namely allows are applied on coil.Once the closing of contact of switch contact element, then boosted voltage, to ensure required high contact force.The shortcoming of which is, the turn-on time of low voltage switching devices expands in disadvantageous mode.
Utility model content
The purpose of this utility model is, provides a kind of low voltage switching devices with the switching noise of reduction, and can not adversely affect closing speed.
This object is realized by a kind of top cover block for low voltage switching devices and a kind of corresponding low voltage switching devices.
According to first aspect of the present utility model, a kind of top cover block for low voltage switching devices is proposed, wherein, low voltage switching devices comprises electromagnetic driver and switch contact element, the armature that electromagnetic driver has fixing yoke and can move relative to yoke, contact can close along moving of axis and open by armature of switch contact element.Top cover block comprises the parts for convergent mode of motion, once contact occurs in the contact of switch contact element, then these parts make armature motion slow down due to the motion of armature on yoke direction in the process of Closing Switch contact element.
The closing course of electromagnetic driver by the component delays for convergent mode of motion.Therefore significantly reduce switching noise, and in switching speed, the function of low voltage switching devices can not be affected negatively.
Preferably, the parts for convergent mode of motion are arranged in the top cover block be provided separately with low voltage switching devices, thus can improve conventional low voltage switching devices in noise generation owing to having installed corresponding top cover block.As from the following description apparently, adjust noise level by the parts being designed for convergent mode of motion.In addition, the frequency spectrum of switching noise can be affected.
Parts for convergent mode of motion can comprise damping sheet and multiple bearing, and wherein, once contact occurs in contact, then damping sheet is resisted against multiple bearing place.Damping sheet and multiple bearing are arranged as follows mutually, and namely when contact occurs in the contact of switch contact element time, damping sheet is just resisted against multiple bearing place.Due to the character of damping sheet, ensure during follow-up connection process, in time the closing course of deferred telegram drive system.
Damping sheet can be and armature energy mechanical couplings or mechanical couplings.Therefore ensured, damping sheet causes the motion of armature on yoke direction.
Damping sheet can be coupled with the bar portion extended in the axial direction, and in the top cover block be mechanically connected with low voltage switching devices, this bar portion is mechanically connected with the contact carrier of low voltage switching devices and follows the motion of armature and move.Therefore, the bar portion of top cover block is the same with the prolongation of the contact carrier of the form in bar portion existence of low voltage switching devices.Mechanical connection between bar portion and contact carrier power can connect ground and/or shape connection ground realization.Can propose in practice, be connected the mechanical connection manufactured between these two elements by buckle.
In another design, damping sheet can be coupled with bar portion by path compensation spring.Therefore, it is possible to ensure, once contact occurs in contact, damping sheet is now always resisted against multiple bearing place.
According to another design, due to the motion of armature and the bearing place fixed in multiple position against, damping sheet can flexibly be out of shape from contact.Therefore, speed is reduced, until the armature of power drive system and yoke are encountered mutually by the damping sheet that can move in top cover block.Now, due to the Impact energy decreased when moving-mass is identical, the noise of low voltage switching devices or electromagnetic driver is produced and is restricted to minimum value.
Damping sheet and/or multiple bearing are can reversible deformation, flexible component.Damping sheet can be made up of the flexible plastics of energy reversible deformation or metal.Equally, multiple bearing can be made up of plastics or metal.For noise Producing reason preferably, at least one in two elements is made up of plastics, to avoid noise produce or minimize it when two elements are encountered mutually.
In another design, the plane arranging the corresponding impingement area of multiple bearing can alternatively orientation in the axial direction.This plane orthogonal is in above-mentioned axis, and the armature that can move is along this axial-movement in fixing yoke.Switching noise can be reduced further, because the elasticity of damping sheet adjusts by the position of multiple bearing by this design.To this, such as, regulate multiple bearing according to the type of adjusting bolt by rotation in the axial direction.Apparently, the axial adjustment of multiple bearing is carried out in the same manner, make its impingement area always be arranged in common plane perpendicular to axis of movement.
Therefore, axial movement achieves the impact of the elasticity of flexure on damping sheet.Thereby, it is possible to affect noise level and the frequency spectrum of switching noise.This to have impact in the environment of low voltage switching devices personnel fatefully to the perception of switch.
In another design, the parts for convergent mode of motion can comprise spring, and wherein, once contact occurs in contact, spring loads with just overcoming its elastic force.Be alternative in or be additional to above-mentioned damping sheet and multiple bearing ground, spring can be set in top cover block.Spring is arranged in top cover block as follows, makes spring not load reaction force before the contact of contact.Thereby, it is possible to realize the maximum damping of the closing course of power drive system.
Spring can be arranged in the bar portion being axis direction extends or around this bar portion, and in the top cover block be mechanically connected with low voltage switching devices, bar portion is mechanically connected with the contact carrier of low voltage switching devices and follows the motion of armature and move.Such as, when arranging spring round bar portion, spring can be supported on and be contiguous on the housing wall of low voltage switching devices.
According to second aspect, a kind of low voltage switching devices is proposed, it top cover block comprising basic equipment and meet the above-mentioned type, basic equipment has electromagnetic driver and switch contact element, the armature that electromagnetic driver has fixing yoke and can move relative to yoke, contact can close along moving of axis and open by armature of switch contact element.
Top cover block and basic equipment can be two parts that can be separated from each other.Top cover block also can be the integration component of basic equipment.
Accompanying drawing explanation
Below with reference to the accompanying drawings in embodiment elaborate the utility model.It illustrates:
Fig. 1 is the cross sectional representation according to low voltage switching devices of the present utility model, and its switch contact element is (" the position disconnection ") of opening,
Fig. 2 is the schematic diagram of the low voltage switching devices shown in Fig. 1, and wherein after applying controls feed voltage, contact occurs in the contact of switch contact element,
Fig. 3 is the cross sectional representation of the low voltage switching devices shown in Fig. 1, wherein, by electromagnetic driver Closing Switch contact element (" position connection "), and
Fig. 4 is speed distance chart, that illustrates when connecting compared with the driver of routine, the minimizing of the stroke speed of electromagnetic driver.
Embodiment
Fig. 1 to 3 respectively illustrates the profile according to low voltage switching devices 1 of the present utility model.Low voltage switching devices 1 comprises the basic equipment 10 with the necessary element of interrupting process and the top cover block 30 that can be releasably attached on basic equipment 10.The following function of top cover block 30 also can be the integrated part of basic equipment 10 substantially.On the other hand, the advantage that following variant has is, standardized basic equipment 10 can be equipped with independently subsequently, according to top cover block 30 of the present utility model, to realize the improvement about switching noise.
In the manner known to persons skilled in the art, basic equipment 10 comprises electromagnetic driver 11.Electromagnetic driver 11 is made up of with the armature 14 that can move relative to yoke 12 the fixing yoke 12 with coil 13.Armature 14 can move along axis (so-called axis of movement), and this axis vertically extends in view plane from top to bottom.
In addition, basic equipment 10 also comprises switch contact element 15, and it can be switched between position " is opened " and position " closes " by the motion of armature 14.The switch member 20 that switch contact element 15 comprises the first and second fixed switch pieces 16,18 and can move.First and second fixed switch pieces 16,18 and the switch member 20 that can move extend in the plane of the axis of movement perpendicular to armature.The switch member 20 that can move and armature 14 are arranged in contact carrier 23 place of bar portion shape, and contact carrier extends on the direction of the axis of movement of armature 14.Fixed switch piece 16,18 and the switch member 20 that can move have contact-making surface 17,19,21,22, wherein, at contact-making surface 17,21 and contact-making surface 19,22 when having a contact, electric current can flow through from the first fixed switch piece 16 switch member 20 and the second fixed switch piece 18 that can move.Once contact occurs contact-making surface 17,19,21,22, just electric current can be had.
When switch contact element 15 closes, the switch member 20 that can move is against fixed switch piece 16, and 18 extruding are supported on the spring 24 at the supporting mass place fixed relative to contact carrier 23 position.
In Fig. 1 to Fig. 3 with basic equipment 10 preferably removedly the top cover block 30 that is connected of machinery be included in armature 14 axis of movement or contact carrier 23 direction on the bar portion 31 that can move.Bar portion 31 is arranged in top cover block 30 as follows, makes top cover block be configured to the prolongation of the contact carrier 23 of basic equipment 10.The free end 43 in bar portion 31 is accurately contiguous to end 25 place deviating from armature 14 of contact carrier 23.It can such as connect via kayser or buckle connection (not shown) intercouples.
Damping sheet 33 is mechanically coupled with bar portion 31.Damping sheet 33 can be connected with bar portion 31 regularly.As shown in Figure 1 to Figure 3, damping sheet also can be coupled with bar portion 31 via path compensation spring 42.As Fig. 1 to Fig. 3 schematically shows, path compensation spring 42 can be arranged in the inside in bar portion 31.It also can be arranged round ground, bar portion 31.Path compensation spring 42 is supported on supporting mass 44 place in bar portion 31, and this supporting mass is positioned at the opposite of free end 43.
Damping sheet 33 and multiple bearing 35, a bearing in 38 is configured for the parts 32 of convergent mode of motion jointly.Damping sheet 33 can the plastics of reversible deformation or metal be made up of flexible.Similarly, bearing 35,38, particularly its impingement area 36,39 are made up of flexible plastics or metal.If switch contact element 15 " is opened " in (Fig. 1) in position, so bearing 35, the corresponding impingement area 36,39 of 38 is arranged to damping sheet 33 clearly isolated.Impingement area 36,39 are arranged in common plane, and the axis of movement of this plane and bar portion 31, damping sheet 33 and armature 14 vertically extends.
Two bearings 35,38 are illustrated in the diagram of Fig. 1 to Fig. 3.Also larger bearing quantity can be selected.It is also possible that the bearing constructed with arranging unique sub-circular at this.Bearing 35,38 are arranged in the dividing plate 41 (Wand) perpendicular to axis of movement extension of top cover block 30.Bearing 35,38 can calibrate in the axial direction, thus can adjust the spacing be arranged between the impingement area 36,39 of a plane and damping sheet 33.To this, bearing 35,38 can have external screw thread according to the type of bolt, and external screw thread is engaged in the corresponding internal thread in the space of wall 41.By bearing 35, the groove 37,40 of 38 by such as by means of the rotation of screwdriver, can adjust axial spacing in a desired manner before top cover block 30 is connected with basic equipment 10.
Be additional to or be also alternative in parts 32 ground for convergent mode of motion be made up of damping sheet 33 and bearing 35,38, can arrange spring 34 in top cover block, it is supported on supporting mass 45 place.Supporting mass 45 can such as be formed by the housing wall being contiguous to basic equipment 10 of top cover block 30.
Once the contact-making surface 17 of switch contact element 15,19,21,22 there is contact, in the process of the Closing Switch contact element 15 caused in the motion of armature 14 on yoke 12 direction by producing due to excitation coil 13, make armature motion stop by the one or more parts 32 for convergent mode of motion.Therefore, the closing course of electromagnetic driver 11 by the elastic retardation of the one or more parts 32 for convergent mode of motion.
Switching noise can be reduced significantly, and therefore can not affect the switching speed of low voltage switching devices 1 in disadvantageous mode.This reason is, until before contact-making surface 17,19,21,22 generation contact, the motion of armature 14 on yoke direction is not exposed for the impact of one or more parts 32 of convergent mode of motion.Along with contact just activates the one or more parts 32 being used for convergent mode of motion, and reduce the speed of armature 14 on yoke direction.This is obviously visible by the schematic diagram of Fig. 1 to Fig. 3.
In FIG, low voltage switching devices 1 disconnects, and namely switch contact element 15 is opened.Determine armature 14 thus spaced apart with yoke 12, contact-making surface 17,19,21,22 not contacts, and at bearing 35, the impingement area 36 of 38, there is the spacing to damping sheet 33 between 39.Spacing between impingement area 36,39 and damping sheet 33 equals between the contact-making surface 17 and 21 of switch member 16,18 and 20 and between 19 and 22 spacing at this.
Fig. 2 shows the low voltage switching devices 1 after controlling feed voltage and being applied on coil 23, and due to this voltage, armature 14 is subject to the attraction of yoke 12.At this, before armature 14 is encountered in yoke 12, between the contact-making surface 17 and 21 of switch member 16,18 and 20 and between contact-making surface 19 and 22, there is contact.Meanwhile, damping sheet 33 is contiguous to bearing 35, impingement area 36,39 place of 38.When shown in Fig. 2, the total system be made up of bar portion 31, contact carrier 23 and armature 14 is until the contact-making surface 17,19,21,22 of switch member 16,18 and 20 has a speed before there is contact.
Contact carrier spring 24 does not still compress at the moment.On the contrary, path compensation spring 42 makes damping sheet 33 lie in bearing 35, and the impingement area 36 of 38 on 39, but does not produce significant power at this.In the schematic diagram of Fig. 2, equally do not compress additional spring 34 yet, which represent additional or independently for the parts 32 of convergent mode of motion.
From contact, the speed of the total system be made up of bar portion 31, contact carrier 23 and armature 14 is by moving and resilient damping sheet 33 and/or reduced by the spring 24 in top cover block 30, until armature 14 and yoke 12 are encountered mutually.By the Impact energy decreased when moving-mass is identical, noise is produced and is restricted to minimum value.In this case, the flexibility of damping sheet 33 in Fig. 3, should be identified well, this flexibility due at bearing 35, the support at 38 places and causing.Simultaneously Compress Spring 34 substantially.Combination that is each or two kinds of measures in two kinds of measures causes the minimizing of collision energy.
In addition, should identify from Fig. 3, similarly Compress Spring 24.Be supported on supporting mass place by it, mobile switch member 20 is pressed to switch member 16,18 by spring regularly, so that the contact force passing through to raise due to contact spring 24 is at contact-making surface 17, sets up and contact more reliably between 19,21,22.
Flexible damping sheet 33 is coordinated mutually with the power of controlling in basic equipment 10 in its E module (E-Moduls).This is related to the length of damping sheet 33, thickness and material.This achieve access optimum, mild for noise produces.
Damping sheet 33 and/or the Exact Design scheme of elastic force of the spring 34 that plays brake effect can find out by simulating and/or testing.This design depends on type and/or the design of electromagnetic driver 11 substantially.
The bending stress of damping sheet 33 must a safety factor less of the beaming limit of the material selected by damping sheet 33.After the handover procedure, material must return in its reset condition again.Because the E module of damping sheet 33 and temperature correlation and raise and diminish (therefore this material is more flexible), so should be taken into account above-mentioned when paver and design size along with temperature.
By bearing 35, the adjustable of the axis of 38, according in the off-state of Fig. 1 by the spacing between adjustment impingement area 36,39 and damping sheet 33, the bending springback coefficient of damping sheet 33 can be affected.Noise level and the frequency spectrum of switching noise can be affected thus.Now, this bending springback coefficient can should be used for fixing according to low voltage switching devices 1.
Fig. 4 shows speed course diagram (v-s figure), wherein with solid line, the first curve K1 is shown, and the second curve K2 shown in broken lines.Curve K1 shows the speed distance change curve according to low voltage switching devices of the present utility model, and curve K2 shows the speed distance change curve of the conventional low voltage switching devices not having top cover block as above.
Position A corresponds to position and " opens ", as shown in Figure 1.Until the position B of contact occurs the contact-making surface arriving switch contact element according to the diagram of Fig. 2, curve K1 and K2 overlaps.The position reached according to Fig. 3 at time point C " closes ", wherein, is significantly less than the speed at the C ‵ place, position of the low voltage switching devices in routine in the speed at the C place, position according to low voltage switching devices of the present utility model.From position C or position C ‵, low voltage switching devices is in closure state, and namely electric current can flow through switch contact element.In such state, switch contact element is static, and namely speed is 0.
Due to above-mentioned top cover block and the parts for convergent mode of motion be included in wherein, low voltage switching devices bears the prestressing force of higher machinery, and when being disconnected by higher opening speed, this prestressing force can be discovered compared with the low voltage switching devices of routine.In order to hinder or this higher speed of stop, the limit component including idle running diode system can be set, to obtain coefficient of mutual inductance.Also disconnection noise can be reduced to minimum value by disconnecting clashing into thus.
Claims (17)
1. the top cover block for low voltage switching devices (1), wherein, described low voltage switching devices (1) comprises electromagnetic driver (11) and switch contact element (15), the armature (14) that described electromagnetic driver has fixing yoke (12) and can move relative to described yoke (12), contact can close along moving of axis and can open by described armature (14) of described switch contact element, it is characterized in that, described top cover block (30) comprises the parts (32) for convergent mode of motion, once there is contact in the described contact of described switch contact element (15), then described parts make armature motion slow down in the process of described switch contact element (15) closed due to the motion of described armature (14) on described yoke (12) direction.
2. top cover block according to claim 1, it is characterized in that, described parts (32) for convergent mode of motion comprise damping sheet (33) and multiple bearing (35,38), wherein, once described contact occurs in described contact, then described damping sheet (33) is resisted against multiple described bearing (35,38) place.
3. top cover block according to claim 2, is characterized in that, described damping sheet (33) can mechanically be coupled with described armature (14) or mechanically be coupled.
4. top cover block according to claim 3, it is characterized in that, described damping sheet (33) is coupled with the bar portion (31) extended in the axial direction, in the described top cover block (30) be mechanically connected with described low voltage switching devices (1), described bar portion is mechanically connected with the contact carrier (23) of described low voltage switching devices (1) and follows the described motion of described armature (14) and move.
5. top cover block according to claim 4, is characterized in that, described damping sheet (33) is coupled with described bar portion (31) via path compensation spring (42).
6. the top cover block according to any one of claim 2 to 5, it is characterized in that, due to the described motion of described armature (14) and the described bearing (35 fixing in multiple position, 38) place against, described damping sheet (33) can flexibly be out of shape from described contact.
7. top cover block according to claim 2, is characterized in that, described damping sheet (33) and/or multiple described bearing (35,38) are can reversible deformation, flexible component.
8. top cover block according to claim 6, is characterized in that, described damping sheet (33) and/or multiple described bearing (35,38) are can reversible deformation, flexible component.
9. the top cover block according to any one of claim 2 to 5, is characterized in that, the plane arranging the corresponding impingement area (36,39) of multiple described bearing (35,38) can alternatively orientation in the axial direction.
10. top cover block according to claim 8, is characterized in that, the plane arranging the corresponding impingement area (36,39) of multiple described bearing (35,38) can alternatively orientation in the axial direction.
11. according to the top cover block in claim described in 4 or 5, it is characterized in that, described parts (32) for convergent mode of motion comprise spring (34), wherein, once described contact occurs in described contact, so described spring (34) loads with just overcoming the elastic force of described spring.
12. top cover blocks according to claim 10, it is characterized in that, described parts (32) for convergent mode of motion comprise spring (34), wherein, once described contact occurs in described contact, so described spring (34) loads with just overcoming the elastic force of described spring.
13. top cover blocks according to claim 11, it is characterized in that, described spring (34) is arranged and is in the described bar portion (31) that axis direction extends or around described bar portion (31), in the described top cover block be mechanically connected with described low voltage switching devices (1), described bar portion is mechanically connected with the contact carrier (23) of described low voltage switching devices (1) and follows the described motion of described armature (14) and move.
14. top cover blocks according to claim 12, it is characterized in that, described spring (34) is arranged and is in the described bar portion (31) that axis direction extends or around described bar portion (31), in the described top cover block be mechanically connected with described low voltage switching devices (1), described bar portion is mechanically connected with the contact carrier (23) of described low voltage switching devices (1) and follows the described motion of described armature (14) and move.
15. top cover blocks according to claim 13, is characterized in that, described spring (34) be supported on be contiguous to described low voltage switching devices (1) housing wall on.
16. top cover blocks according to claim 14, is characterized in that, described spring (34) be supported on be contiguous to described low voltage switching devices (1) housing wall on.
17. 1 kinds of low voltage switching devices (1), comprise
There is fixing electromagnetic driver (11) and the basic equipment (10) of switch contact element (15), the armature (14) that described electromagnetic driver has fixing yoke (12) and can move relative to described yoke (12), contact can close along moving of axis and open by described armature (14) of described switch contact element; With
According to top cover block (30) in any one of the preceding claims wherein.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP14162038.5 | 2014-03-27 | ||
| EP14162038.5A EP2924701B1 (en) | 2014-03-27 | 2014-03-27 | Attachment block for a low voltage switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204596718U true CN204596718U (en) | 2015-08-26 |
Family
ID=50439175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520123740.4U Active CN204596718U (en) | 2014-03-27 | 2015-03-03 | For top cover block and the low voltage switching devices of low voltage switching devices |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP2924701B1 (en) |
| CN (1) | CN204596718U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111584258A (en) * | 2019-02-19 | 2020-08-25 | 北海市深蓝科技发展有限责任公司 | Vibration reduction contact structure with damping block for inhibiting contact attraction impact force |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07182961A (en) * | 1993-12-22 | 1995-07-21 | Fuji Electric Co Ltd | Iron core holding structure for electromagnetic contactor |
| JP2007087882A (en) * | 2005-09-26 | 2007-04-05 | Denso Corp | Electromagnetic switch |
| DE102011081013A1 (en) * | 2011-08-16 | 2013-02-21 | Robert Bosch Gmbh | Relay e.g. pure engaging relay, for thrust-screw-drive starter to turn on internal combustion engine of motor car, has damping element cooperating with magnets and arranged in region of drive bearing of relay between housing and anchor unit |
-
2014
- 2014-03-27 EP EP14162038.5A patent/EP2924701B1/en active Active
-
2015
- 2015-03-03 CN CN201520123740.4U patent/CN204596718U/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| EP2924701B1 (en) | 2016-10-19 |
| EP2924701A1 (en) | 2015-09-30 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |