KR101313676B1 - Electromagnetic relay assembly - Google Patents

Abstract

The electromagnetic relay enables current to pass through the switch distal end and includes a coil assembly, a rotor or bridge assembly and a switch assembly. The coil assembly includes a coil and a C-shaped core. The coil is wound around a coil axis extending through the core. The core includes a core end portion parallel to the coil axis. The bridge assembly includes a bridge and an actuator. The bridge includes intermediate, lateral and transverse field paths. The actuator extends laterally from the lateral field path. The core end is coplanar with the axis of rotation and is received in the middle of the intermediate and lateral field paths. The actuator is cooperative with the switch assembly. The coil creates a guiding magnetic field through the bridge assembly via the core end to impart bridge rotation about the axis of rotation. Bridge rotation displaces the actuator to open and close the switch assembly.

Description

Electromagnetic Relay Assembly {ELECTROMAGNETIC RELAY ASSEMBLY}

The disclosed invention generally relates to an electromagnetic relay assembly having a uniquely constructed armature assembly. More specifically, the disclosed invention relates to an electromagnetic relay assembly having a magnetically operable rotor assembly for linearly displacing at least one switch actuator.

In general, the function of an electromagnetic relay is to use a small amount of power in an electromagnet to move an armature that is capable of switching a much larger amount of power. As an example, a relay designer may want the electromagnet to excite using 5 volts and 50 milliamps (250 milliwatts), and the amateur may support 120 volts (240 watts) at 2 amps. Relays are very common in home appliances where there are electronic controls that turn on (or turn off) some application devices, such as motors or lights. Although the present invention is essentially for supporting a unipolar 120-amp pass-through electromagnetic relay assembly, the nature of the present invention is inherent in configuration and as enabled by basic teaching as provided in the unipolar embodiments illustrated and described herein. It is contemplated that it may be applied to a multipole relay assembly (eg, a dual pole relay assembly) having functionality. Many other electromagnetic relay assemblies, reflected in the art and disclosed in the US patent, are briefly described below.

U. S. Patent No. 6,046, 660 (the '660 patent) to Gruner discloses a latching magnetic relay assembly having a linear motor. The '660 patent teaches a latching magnetic relay capable of delivering currents in excess of 100 amps for use in regulating the transfer of electricity or for other applications requiring switching of currents in excess of 100 amps. The relay motor assembly has an elongated coil bobbin having an axially extending cavity therein. The excitation coil is wound around the bobbin. An approximately U-shaped ferromagnetic frame has a core section disposed within and extending through the axially extending cavity in the elongated coil bobbin. Two contact sections extend generally perpendicular to the core section and rise above the motor assembly. The actuator assembly is magnetically coupled to the relay motor assembly. The actuator assembly consists of an actuator frame operatively coupled to the first and second substantially U-shaped ferromagnetic pole pieces and a permanent magnet. A contact bridge made of a sheet of conductive material copper is operatively coupled to the actuator assembly.

U.S. Patent No. 6,246,306 to the Gruner ('306 patent) discloses an electromagnetic relay with a pressure spring. The '306 patent teaches an electromagnetic relay having a motor assembly having a bobbin fixed to the housing. The core is connected adjacent below the bobbin except for the core end extending from the bobbin. The armature end magnetically couples the core end when the coil is excited. An actuator couples the armature and the plurality of central contact spring assemblies. The center contact spring assembly consists of a center contact spring that is ultrasonically welded onto the center contact terminal without pre-bending. Normally open springs are positioned relatively parallel to the center contact spring. The normally open spring is ultrasonically welded onto the normally open terminal to form the normally open external contact spring assembly. The normally closed outer contact spring is positioned perpendicular to the center contact spring such that the normally closed outer contact spring assembly is in contact with the center contact spring assembly when the center contact spring is not acted upon by the actuator. The normally closed spring is ultrasonically welded onto the normally closed terminal to form the normally closed assembly. The pressure spring urges the center contact spring on the actuator when the actuator is not in use.

U. S. Patent No. 6,252, 478 (the '478 patent) to Gruner discloses an electromagnetic relay. The '478 patent teaches an electromagnetic relay having a motor assembly with a bobbin fixed to the frame. The core is disposed in the bobbin except for the core end extending from the bobbin. The armature end is magnetically coupled to the core end when the coil is excited. An actuator couples the armature with the plurality of movable blade assemblies. The movable blade assembly consists of a movable blade ultrasonically welded onto the center contact terminal. Normally the open blade is positioned relatively parallel to the movable blade. The normally open blade is ultrasonically welded onto the normally open terminal to form the normally open contact assembly. The normally closed contact assembly consists of a third contact rivet and a normally closed terminal. The normally closed contact assembly is positioned perpendicular to the movable blade such that the normally closed contact assembly is in contact with the movable blade assembly when the movable blade is not acted upon by the actuator.

U.S. Patent No. 6,320,485 to the Gruner ('485 patent) discloses an electromagnetic relay assembly with a linear motor. The '485 patent teaches an electromagnetic relay capable of delivering currents in excess of 100 amps for use in regulating the transmission of electricity or in other applications requiring switching of currents in excess of 100 amps. The relay motor assembly has an elongated coil bobbin having an axially extending cavity therein. The excitation coil is wound around the bobbin. An approximately U-shaped ferromagnetic frame has a core section disposed within and extending through the axially extending cavity in the elongated coil bobbin. Two contact sections extend generally perpendicular to the core section and rise above the motor assembly. The actuator assembly is magnetically coupled to the relay motor assembly. The actuator assembly consists of an actuator frame operatively coupled to the first and second substantially U-shaped ferromagnetic pole pieces, and a permanent magnet. A contact bridge made of a sheet of conductive material copper is operatively coupled to the actuator assembly.

U.S. Patent No. 6,563,409 to the Gruner ('409 Patent) discloses a latching magnetic relay assembly. The '409 patent is a relay motor having a first coil bobbin having a first excitation coil wound around it and a second coil bobbin having a second excitation coil wound around it, wherein the first excitation coil and the second All of the excitation coils are the same, the first excitation coil being electrically insulated from the second excitation coil, an actuator assembly magnetically coupled to the relay motor, the actuator assembly having first and second ends, Each teaches a latching magnetic relay assembly comprising a group of one or two contact bridge assemblies comprising a contact bridge and a spring.

It is an object of the present invention to provide an electromagnetic relay assembly having specific means for damping contact vibrations in the middle of the contacts of the switching assembly. Another object of the present invention is to provide an armature assembly having a rotational axis and rotating under the influence of a magnetic field generated or imparted from an electromagnetic coil assembly. The armature assembly linearly displaces the switch actuators for opening and closing each switch assembly of the relay. To accomplish these and other immediate and obvious objects, the electromagnetic relay assembly of the present invention includes an electromagnetic coil assembly, an armature bridge assembly and at least one switch assembly, as described in more detail below.

The coil assembly essentially comprises a coil, a C-shaped yoke assembly and a coil shaft. The coil is wound around the coil axis and the yoke assembly includes first and second yoke arms. Each yoke arm includes an axial yoke portion that is coaxially aligned with the coil axis and that together forms the rear portion of the C-shaped yoke assembly. Each yoke arm further comprises a yoke end, which is coplanar and substantially parallel to the coil axis.

The armature bridge assembly is rotatable about an axis spaced orthogonally from the coil axis and coplanar with the yoke end. Thus, the armature bridge assembly includes a bridge axis of rotation, a bridge and at least one actuator arm. The bridge is a middle field path that is relatively closer to the coil axis, a lateral field path that is relatively further near the coil axis, and longitudinal or axially spaced mid-lateral or extending to the middle of the middle and lateral paths. Lateral-medium field paths (or transverse field paths). Each actuator arm is cooperative with the lateral field path via its first end and extends laterally away from the lateral field path.

Each switch assembly essentially comprises a switch terminal and a spring assembly between the switch terminals. Each spring assembly is attached to the second end of the actuator arm. The yoke end is received in the middle of the intermediate and lateral paths. As standard and well established in the art, the coil receives current and generates or imparts a magnetic field, which is applied to the yoke to impart bridge rotation around the bridge axis of rotation and to linearly displace each actuator arm. It is guided through the bridge assembly via the distal end. Each displaceable actuator arm functions to actuate a spring assembly in the middle of the open and closed contact positions, the closed contact position allowing current to pass through the switch assembly via the switch distal end.

Certain ambient features of the essential electromagnetic relay assembly include specific means for enhancing spring overtravel, which function to increase the contact pressure in the middle of the switch terminals when the spring assembly is in the closed position. Means for improving spring overtravel further provide means for contact wiping or contact cleaning via improved contact or increased contact pressure. In other words, the improved conduction path through the contact interface may preferably function to burn off residues and / or debris that may otherwise be stopped at the contact surface. The means for improving spring overtravel can also make the function of providing a specific means for damping the vibration of the contact bounce or vibration in the middle of the first and second contacts when switching from the open position to the closed position.

Other objects, as well as specific features, elements and advantages of the present invention, will become apparent or will become apparent from the following detailed description and the accompanying drawings.

Other features of the present invention will become more apparent from consideration of the following brief description of the drawings.

1 is a first plan view of an electromagnetic relay assembly of the present invention with each switch assembly in a closed position.
2 is a second plan view of the electromagnetic relay assembly of the present invention with the switch assembly in the closed position;
FIG. 2A is an enlarged fragmentary cross-sectional view of the assembly shown in FIG. 2 showing the rotor assembly and rotor mount; FIG.
3 is a schematic plan view of the rotor assembly, each actuator arm and each switch assembly in a closed position, separated from the relay housing and coil assembly to improve understanding of the structural relationships therebetween.
4 is a schematic plan view of the rotor assembly, each actuator arm and each switch assembly in an open position as separated from the relay housing and coil assembly to improve understanding of the structural relationship therebetween.
5 is a top exploded perspective view of the electromagnetic relay assembly of the present invention showing an optional housing cover.
6 is an exploded perspective view of a coil assembly of the electromagnetic relay assembly of the present invention.
7 is a partially exploded perspective view of the rotor assembly of the armature assembly of the electromagnetic relay assembly.
8 is an exploded perspective view of the first terminal assembly of the first switch assembly of the electromagnetic relay assembly;
9 is an exploded perspective view of the second terminal assembly of the first switch assembly of the electromagnetic relay assembly.
10 is an exploded perspective view of the first switch terminal assembly of the second switch assembly according to the present invention.
11 is an exploded perspective view of a second switch terminal assembly of a second switch assembly in accordance with the present invention.
12 is a partial side view of the trillion spring assembly, contact button and armature arm of the present invention showing the contact button in a closed position with the triumvirate spring assembly in a substantially coplanar position;
FIG. 13 is a partial side view of the trillion spring assembly, contact button and armature arm of the present invention in which the trillion spring assembly shows the contact button in a closed position in an overmoving position to enhance the contact pressure in the middle of the contact button;
FIG. 14 is an enlarged partial side view of the junction of the three-spring spring assembly and upper contact button shown in FIG. 13 showing the three-spring spring assembly in an overmoving position to improve the contact pressure in the middle of the contact button; FIG.
Figure 15 is an opposing triad spring assembly of the present invention showing a contact button in a closed position showing each triangular spring assembly with two springs in a substantially linear configuration and one spring in an offset configuration prior to overtravel. , Side view of dual part of contact button and armature arm assembly.
FIG. 16 is an enlarged partial side view of the junction in the uppermost trillion spring assembly and top contact button shown in FIG. 15 showing a spring with an offset prior to overtravel; FIG.
FIG. 17 is an enlarged partial side view of the junction in the leftmost triad spring assembly and top contact button shown in FIG. 15 showing a spring with an offset prior to overtravel; FIG.
FIG. 18 is an enlarged fragmentary side view of the junction in the triangular spring assembly and top contact button shown in FIG. 16 showing a spring having an offset after overtravel; FIG.
FIG. 19 is an enlarged fragmentary side view of the junction of the three jaw spring assembly and top contact button shown in FIG. 17 showing a spring with offset after overtravel; FIG.
20 is a schematic diagram of flux flow through a rotor assembly and a C-shaped core assembly of an electromagnetic relay assembly showing diverted field flow through the rotor assembly;
FIG. 21 is a switch terminal operatively connected to a triangular spring assembly and contact button showing first and second springs having a centrally located C-shaped fold and a third spring having bends located at an end; Double side view of an enlarged cross-sectional view detailing the bends located at the ends of the assembly and the third spring.
FIG. 22 is a schematic diagram of a critical current path guided through a relay distal end disposed adjacent to a rotatable armature assembly showing a distal end magnetic field larger in size than the armature source magnetic field for rotating the armature assembly towards the circuit open position; FIG.

Referring now to the drawings, a preferred embodiment of the present invention relates to an electromagnetic relay assembly 10 as shown and mentioned in FIGS. 1, 2 and 5. The electromagnetic relay assembly 10 of the present invention is inherently selective to allow current to pass through the switch distal end 11 as shown and referred to in FIGS. 1, 2, 3-5, and 8-11. Function to make it possible. In order to achieve these and other readily apparent functions, the electromagnetic relay assembly 10 of the present invention is preferably an electromagnetic coil assembly 12, as generally shown and referred to in FIGS. 1, 2, and 5, FIG. A rotatable armature assembly 13 as generally shown and mentioned in FIGS. 1-5 and switch assemblies 14 as generally shown and mentioned in FIGS.

The coil assembly 12 of the present invention is preferably a conducting coil 15 as shown and mentioned in FIGS. 1, 2 and 6, a C-type core or yoke assembly as shown and mentioned in FIG. 16) and the coil shaft. It can be seen or understood from the examination of the mentioned figures that the energizing coil 15 is wound around a coil axis and includes an electromagnet driven distal end 17 as shown and mentioned in FIG. 6. The yoke assembly or C-shaped core assembly 16 of the present invention is axially housed within the coil 15 and preferably comprises first and second yoke arms 18. It can be seen from the irradiation of FIG. 6 that the yoke arm 18 comprises an axial yoke portion 19 and a substantially planar yoke end portion 20, respectively, which yoke end portion 20 is preferably parallel to the coil axis. Do.

The rotatable armature assembly 13 of the present invention is preferably a rotor assembly 21, FIGS. 1, 2, as generally shown and referred to in FIGS. 1 to 5, 7, 15 and 17. 3 to 5, and to the actuator or actuator arm (s) 22 as shown and referred to generally in FIG. 13 and to the points in FIGS. 2 (a) to 4, 15, 17, and FIG. It is contemplated that this may be described as including the armature axis of rotation 101 as shown and mentioned in broken lines. The rotor assembly 21 is preferably a first and second uniformly oriented or polarized rotor magnet 23 as shown and mentioned in FIGS. 7 and 15, FIGS. 3 to 5, 7 and Rotor plate 25 as shown and mentioned in FIG. 15, rotor bracket 26 as shown and mentioned in FIGS. 3 to 5, 7 and 15, as shown and mentioned in FIG. 7. Rotor housing 27, return spring (not specifically described), rotor pin 29 as shown and mentioned in FIG. 5 and as shown and mentioned in FIGS. 1, 2 (a) and 5 The same rotor mounting portion 30 is included.

The rotor bracket 26 is attached or otherwise cooperatively associated with the first end (s) of the actuator arm (s) 22, and the rotor plate 25 and the rotor bracket 26 (or these It will be appreciated from the survey of the figures mentioned that it is preferably oriented parallel to each other via the rotor housing 27. In this regard, the first and second rotor magnets 23 are equally dimensioned to equally space the rotor plate 25 and the rotor bracket 26 simultaneously and as shown schematically in FIG. 15. The middle of the rotor plate 25 and the rotor bracket 26 to also provide a guide or path for the so-called Lorentz current or magnetic flux so that it is effectively oriented transversely across the rotor or bridge assembly 21 as well. It can also be seen that

In this regard, the armature assembly 13 can be considered as an armature bridge assembly, which bridgely cooperates with the armature axis of rotation (similar to the armature axis 101) and the armature arm (s) 22. It is considered to include a bridge. In this regard, the bridge is preferably in the intermediate path (similar to the rotor plate 25), the lateral path (similar to the rotor bracket 26) and in the longitudinal or axially spaced mid-lateral direction. Or as a transversal path (similar to the first and second rotor magnets 23). Thus, armature arm 22 can be described as laterally spaced from lateral path or rotor bracket 26 to engage switch assemblies 14.

The rotor housing 27 essentially houses, houses and positions the first and second rotor magnets 23, the rotor plate 25 and the rotor brackets 26 to structure the armature assembly 13. It functions to form a bridge similar to. The rotor magnets 23 are evenly directed so that similar poles face the same rotor structure. For example, the north pole of the rotor magnet 23 can face the rotor bracket 26 (the south pole thereby directs the rotor plate 25), or turn It is contemplated that the S pole of the electromagnetic magnet 23 can face the rotor bracket 26 (the N pole thereby faces the rotor plate 25).

The rotor housing 27 may preferably further comprise a pin receiving opening or bore for receiving the rotor pins. The pin receiving opening or bore of the rotor housing 27 enables the rotation of the bridge or armature assembly 13 around the armature axis of rotation 101. The rotor pin 29 extending through the pin receiving bore may be axially fixed to its lower end via the relay housing 48 as shown and mentioned in FIGS. 1-3, and the relay housing 48. Is dimensioned and shaped to receive, receive, and position the coil assembly 12, the armature assembly 13, and the switch assemblies 14. It can also be immediately understood from the survey of FIG. 5 that the relay housing 48 is not essential but can include or cooperate with the relay cover 49.

In this regard, the armature assembly 13 of the invention can be fixed or mounted via the rotor mount 30. The rotor mount 30 can be cooperatively associated with the relay housing 48 (ie fixed to the relay housing 48) to secure the rotor pin 29 axially, and the fixed rotor mount 30 houses and secures the upper end of the rotor pin 29 to enable the user of the relay to effectively operate the electromagnetic relay assembly 10 of the present invention without the relay cover 49. Thus, the means for mounting the rotor mount 30 or the bridge mount or rotor assembly or bridge assembly may be described as providing specific means for enabling open directional operation of the electromagnetic relay assembly 10. For example, in certain scenarios it is contemplated that the coverless relay assembly provides certain gains. For example, the relay assembly of the present invention can be observed more immediately during the test procedure. In either case, the rotor mount 30 of the present invention is contemplated to enable uncovered operation of the electromagnetic relay assembly 10 by alternatively securing the armature assembly 13 to the relay housing 48.

The switch assemblies 14 of the relay assembly 10 of the present invention are preferably first switch terminal assemblies 31 as generally shown and referred to in FIGS. 1 to 5, 9, 11 and 17, respectively. ), A second switch terminal assembly 32 as shown and referred to in FIGS. 1-5, 8, 10, 16 and 17 and FIGS. 1-5, 8, 10, 12, And a trillion spring assembly 33 as shown and mentioned in FIGS. 14 and 16. From the examination of the mentioned figures, each first switch terminal assembly 31 preferably comprises a first contact button 34 and a first switch end as in reference numeral 11. In addition, each second switch terminal assembly 32 preferably comprises a second switch end as in reference numeral 11.

Each triangular spring assembly 33 preferably has a second contact button (s) 37 and a first spring as also shown and mentioned in FIGS. 8, 10, 12-14 and 16. 38, second spring 39, and third spring 40. Each first spring (s) 38 preferably has a first contact receiving opening, such as 41 in FIGS. 8 and 10, and a first C-shaped opening, as in 42, as well as FIG. 16, It can also be seen that it includes end-positioned offsets or bends as in reference numeral 70 in FIGS. 17 and 21. In particular, the first C-shaped opening 42 is preferably concentric with the first contact receiving opening 41. The second spring (s) 39 preferably each comprise a second contact receiving opening as in reference 43 in FIGS. 8 and 10 and a first C-shaped fold as in reference 44. It can be seen from the irradiation of FIGS. 8 and 10 that the first C-shaped fold 44 has a particular first radius of curvature. The third spring (s) 40 each preferably comprises a third contact receiving opening as in 45 and a second C-shaped fold as in 47.

It can also be seen that the second C-shaped fold 47 has a second radius of curvature, which is larger than the first radius of curvature (of the first C-shaped fold 44). . The second spring (s) 39 are first and third springs 38, 40 via the second contact button (s) 37 as received or extended through the contact receiving openings 41, 43, 45. ) Is intervened. The first C-shaped fold (s) 44 are concentric (with respect to the folding axis) in the second C-shaped fold 47. The first and second contact buttons 34, 37 or contacts are oriented or juxtaposed apart from one another, as generally shown in FIGS. 1 to 4, 12 to 14, and 17. In a preferred embodiment, the trillion spring assemblies 33 are biased in the open contact position between the first and second switch distal ends 11 and attached to the armature arm (s) 22 (lateral ends).

The first and second C-shaped openings 42 and the end-positioned offset or bend 70 are designed for enhanced overtravel to increase the contact pressure in the middle of the first and second contact buttons 34, 37. It is contemplated that the function of providing means can be improved. In this regard, further guidance is provided to FIGS. 12-14 and 15-19. From the relative comparison of the mentioned figures, it can be seen that the terminal side end 53 of the spring assembly 33 can be operated past the planar portion of the spring assembly 33 immediately adjacent the stem 51 of the contact button 37. have. Thus, the planar portion of the spring assembly 33 immediately (and radially) adjacent to the stem 51 of the contact button 37 forms a button stackable spring portion as shown in FIG. 14. The button stackable spring portion 52 is stacked on the contact button 37, and the terminal side end 53 of the spring assembly 33 is elastically deformed as in reference numeral 50 to enable the overtravel.

In other words, the material of the spring element having the C-shaped opening (preferably copper) is elastically deformable more immediately at the distal end of the C-shaped opening as in reference numeral 50. In particular, the elastic deformation of the material adjacent to the distal end 50 does not result in significant brittleness of the underlying material lattice (ie does not impart significant undesirable lattice dislocations), and thus the C-shaped opening structure of the trillion spring assembly. Or the feature provides robust means for improved overtravel to also provide certain added pressure in the middle of the contact buttons 34, 37 to enhance the conductive contact (es) therebetween. The end-positioned offset or bend 70 also provides improved overtravel means for increasing the contact pressure of the contacts 34, 37 and reducing the contact bounce.

Thus, the conduction through the contact buttons 34, 37 is improved via C-type opening enablement and / or improved overtravel. Improved contact and consequent conduction provide specific means for improved contact wiping, and it is contemplated that the contact wiping or contact cleaning means are thus further improved via improved overtravel. In this regard, the relay assembly 10 of the present invention is considered to have a self-cleaning feature as essentially enabled by the C-shaped opening 42. In addition, the C-shaped opening 42 (offset or bend 70) is in the closed contact state or closed switch position (as shown generally in FIG. 4) from the open contact state or the open switch position (FIGS. 1 to 3). It is contemplated that a particular means for reducing contact bounce in the middle of the contact buttons 34, 37 or otherwise cushioning contact vibrations when switched to a switch, as generally shown in FIG.

From the irradiation of FIG. 15, the core or yoke end 20 is loosely received between the rotor plate 25 and the rotor bracket 26, the armature rotational axis 101 is coplanar with the yoke end 20, It can be immediately understood that this axis of rotation 101 extends through the rotor pin 29 (not specifically shown in FIG. 15). As can be readily appreciated, the energizing coil 15 functions to receive a current thereby generating a magnetic field as further shown and mentioned as a vector 102 in FIG. 15. As can be seen from the investigation of the mentioned figures, the magnetic field 102 is subjected to a rotor assembly (essentially the rotor bracket 26) to impart armature or bridge rotation around the armature rotational axis 101 via magnetically induced torque. Formed by the rotor magnet 23 and the rotor plate 25].
Thus, the rotating bracket 26 functions to linearly displace the actuator arm (s) 22, which displaced actuator arm (s) 22 is a preferred spring biased open position (as shown generally in FIG. 4). The trillion spring assemblies 33 are operated from a spring-loaded closed position (as is generally shown in FIG. 2). The material configuration of the relay assembly 10 (considered to be within the skill of those skilled in the art) and the closed position essentially allow 120-amperes of current to pass through the contact buttons 34 and 37 and the switch distal end 11 to the switch assembly. To pass through the field (14).

When the coil assembly 12 is currently at rest and the magnetic field is effectively removed, the return spring 28 may preferably function to improve the return of the trillion spring assembly 33 to the desired spring biased open position. If a fault current condition occurs, the electromagnetic relay 10 may preferably further comprise specific closed contact default means, wherein the closed contact default means is a contact button 34, during the default current or short circuit condition (s). 37) forcibly closing.

It is also contemplated that the electromagnetic relay according to the present invention may include specific means for defaulting to an open contact position during threshold terminal based current conditions. In this regard, it is noted from traditional electromagnetic theory that streaming charge carriers develop a magnetic field radially adjacent to the direction of the carrier stream. Thus, a schematic diagram of a threshold current path as 71 is guided through relay terminals 31 and 32 via contact buttons 34 and 37 is shown in FIG. The magnetic force vector, 103, is shown as terminal originated via the charge carrier current flowing through path 71. After reaching a certain threshold amount of current, the magnetic field generated through the terminals 31, 32 can interact with the permanent magnet or rotor magnet 23 of the rotatable armature assembly 13. The magnet 23 has an outwardly directed intrinsic magnetic field as referred to as the vector arrow 104, whose force is smaller than the force at the vector arrow 103. As indicated, the difference in force between 104 and 103 allows the rotatable armature assembly 13 to rotate toward the open contact position as schematically shown in FIG. 22. This feature can be corrected by the distance between the armature and the stop contact and the size and strength of the magnet 23.

While the description includes many details, these details should not be construed as limitations on the scope of the invention, but rather as illustrations of the invention. For example, the present invention may be referred to essentially as teaching or initiating an electromagnetic relay assembly for allowing current to pass through the switch end, which may be referred to as a coil assembly, a bridge assembly and at least one. A switch assembly. The coil assembly includes a coil, a coil shaft and a C-shaped core. The coil is wound around its coil axis, the coil axis extending through the core shown at 60 in FIG. 15. The core 60 includes a core end 20, which is substantially parallel to the coil axis.

The bridge assembly comprises an axis of rotation as indicated by reference numeral 101 in FIG. 15 and a bridge as indicated by reference numeral 61 and a switch actuator (s) as indicated by reference numeral 22. Bridge 61 includes intermediate field path 63 (ie, relatively closer to core 60), lateral field path 64 (ie, relatively closer to core 60) and intermediate and In the middle of the lateral field paths 63, 64 is an axially spaced transverse path 65 for guiding the field as 102. The actuator arm (s) 22 cooperate with and extend away from the lateral path 64 (not specifically shown in FIG. 15). The core end 20 is preferably coplanar with the axis of rotation 101 and is received in the middle of the intermediate and lateral paths 63, 64.

The transverse path 65 provides specific field-switching means for transversing the magnetic field 102 relative to the coil axis 100 and for magnetically inducing torque, the magnetically induced torque being the switch actuator (s). It is contemplated to function to operate (22). The field shifting means may also be described as including specific field shifting means (two axis opposite paths as 66 in FIG. 15) for generating a magnetic couple for the magnetically induced torque.

Switch assemblies, such as 14, are also cooperative with actuator arm (s) 22, which actuator arm (s) 22 are essentially coupled between the bridge assembly 61 and the switch assemblies 14. to be. The coil functions to generate or impart a magnetic field as shown by the vector at 102. The magnetic field 102 is directable through the bridge assembly 61 via the core end 20 to impart bridge rotation about the axis of rotation 101 via magnetically induced torque. Bridge rotation functions to displace the actuator arm (s) 22, which displaced actuator arm (s) 22 physically open and close the switch assemblies 14. As most readily understood in the art, the closed switch assemblies 14 allow current to pass through it.

Each switch assembly 14 includes specific spring means for enhancing spring overtravel, which means for improving the closed switch position by increasing the contact pressure in the middle of the contact buttons 34, 37. The spring means function to improve spring overtravel and further provide contact wiping means and vibration dampening means. The contact wiping means is contemplated to effectively self-clean each switch assembly 14, and the vibration damping means function to dampen the contact vibrations when switching from the open switch position to the closed switch position. The spring means for improving spring overtravel is thus said to improve the closed switch position by increasing the contact pressure in the middle of the contacts, maintaining the contact interface free of residue, and dampening the contact vibrations when closing the contacts. Can lose.

Although the present invention has been described with reference to a number of embodiments, the novel devices or relays are not intended to be limited thereby, and their modifications are intended to be included as falling within the broad scope and spirit of the disclosure and the accompanying drawings. Is considered. For example, the specification has an inherent configuration and function with its own rights and is intended primarily for use as a multipole relay assembly enabled by the teachings of the embodiment (s) described herein. Support.

10: electromagnetic relay assembly 12: electromagnetic coil assembly
13: amateur assembly 15: energized coil
16: yoke assembly 17: drive distal end
18: York arm 19: York part
20: yoke end 21: rotor assembly
25: rotor plate 26: rotor bracket
27: rotor housing 30: rotor mounting
33: 3-piece spring assembly 34, 37: contact button
48: relay housing 49: cover

Claims (34)

An electromagnetic relay for allowing current to pass through a switch terminal,
Coil, as the electromagnetic coil assembly comprising a C- shaped yoke assembly and the coil axis, the coil is wound on the coil circumference uniaxially, the yoke assembly comprises first and second yoke including the arms, and each of the yoke arms Said electromagnetic coil assembly comprising an axial yoke portion and a yoke end portion;
An armature bridge assembly comprising a bridge axis of rotation, a bridge and opposing actuator arms, wherein the bridge comprises a middle field path, a zigzag lateral field path and a longitudinally spaced transverse field path, wherein the actuator arms are on the side. The armature bridge assembly extending from the terminals of the directional field path; And
Two switch assemblies each comprising a switch terminal and a spring assembly, said spring assemblies attached to said actuator arms and extending in the middle of said switch terminals, said yoke end being in the middle of said intermediate and lateral field paths; Received, the bridge axis of rotation is coplanar with the yoke end, the actuator arms and zigzag lateral field path extend non-radially relative to the bridge axis of rotation, and the coil receives current and generates a magnetic field. Wherein the magnetic field is guided through the bridge assembly via the yoke end to impart bridge rotation about the bridge axis of rotation and displace the actuator arms, the displaceable actuator arms being closed with an open contact position. Of contact position It is for actuating said spring assembly between the closed contact position is an electromagnetic relay comprising phosphorus, wherein the two switch assembly designed to enable the electric current is passed through the switch assembly via the switch ends. 2. The apparatus of claim 1, comprising spring-based opening means for enhancing spring overtravel, wherein the spring-based opening means for increasing contact pressure in the middle of the switch terminals when the spring assemblies are in the closed contact position. Electromagnetic relay. 3. The electromagnetic relay of claim 2 wherein the spring-based opening means for enhancing spring overtravel provides contact wiping means, and the contact wiping means for cleaning the switch terminals. 2. The electromagnetic relay of claim 1 including spring based opening means for damping contact vibrations in the middle of the first and second contacts when switching from the open contact position to the closed contact position. 2. The electromagnetic relay of claim 1 comprising bridge mounting means, wherein the bridge mounting means are for enabling open direct operation of the electromagnetic relay. 2. The electromagnetic relay of claim 1 further comprising closed contact default means, wherein the closed contact default means is for defaulting to a closed contact position during a fault current condition. 2. The electromagnetic relay of claim 1 further comprising open contact default means, wherein the open contact default means defaults to an open contact position during a threshold terminal based current condition. An electromagnetic relay for allowing current to pass through a switch terminal,
A coil assembly comprising a coil, a coil shaft, and a C-shaped core, the coil wound around the coil shaft, the coil shaft extending through the core, the core comprising a core end portion, the core end portion The coil assembly parallel to the coil axis;
A bridge assembly comprising an axis of rotation, a bridge, and opposing actuators, wherein the bridge includes an intermediate field path, a zigzag lateral field path, and a spaced transverse field path, the actuators extending from terminals of the lateral field path. The core end portion being coplanar with the axis of rotation and received in the middle of the intermediate and lateral field paths; And
First and second switch assemblies cooperable with said actuator arms, said coil being for generating a magnetic field, said magnetic field being through said core end portion to impart bridge rotation about said axis of rotation via magnetically induced torque Guiding through the bridge assembly, the bridge rotation for displacing the actuator arms, the displaceable actuator arms for opening and closing from the open switch position of the switch assemblies to the closed switch position, and the closed Wherein the switch assemblies are intended to allow current to pass through the electromagnetic relay. 9. The electromagnetic relay of claim 8 wherein the switch assemblies comprise spring-based opening overshift means for enhancing spring overtravel and for improving the closed switch position. 10. The electromagnetic relay of claim 9 wherein the spring based opening overshifting means provides contact wiping means, the contact wiping means for cleaning the switch assemblies. 9. The electromagnetic relay of claim 8 comprising spring based opening buffer means for damping switch vibrations when switching from the open switch position to the closed switch position. 9. An electromagnetic relay as claimed in claim 8, comprising bridge mounting means, the bridge mounting means for enabling open direct operation of the electromagnetic relay. 9. The electromagnetic relay of claim 8 further comprising closed contact default means, wherein the closed contact default means is for defaulting to a closed contact position during a fault current condition. 9. The electromagnetic relay of claim 8 further comprising open contact default means, the open contact default means for defaulting to an open contact position during a threshold terminal based current condition. 10. The apparatus of claim 9, wherein the switch assemblies each comprise a spring assembly, each of the spring assemblies including three spring elements, wherein a first spring element of the three spring elements defines a first C-shaped opening. Wherein the first C-shaped opening defines a first semi-circular opening forming extension, the first C-shaped opening being concentric with the first contact receiving opening, and a second spring of the three spring elements. The element includes a second contact receiving opening and terminates in a second semicircular opening forming extension, wherein a third spring element of the three spring elements comprises a third contact receiving opening and a second C-shaped opening, The second C-shaped opening defines a third semicircular opening forming extension, the second C-shaped opening is concentric with the second contact receiving opening, and the first and second C-shaped opening are 1st and 3rd Symmetrical with respect to the longitudinal axis of the ring element, the second spring is interposed between the first and third spring elements via the second contact such that the first, second and third semicircular opening forming extensions are uniformly stacked And the three spring elements are configured to provide a spring based opening means for improving spring overtravel. 12. The apparatus of claim 11, wherein the switch assemblies each comprise a spring assembly, each of the spring assemblies comprising three spring elements, wherein a first spring element of the three spring elements defines a first C-shaped opening. Wherein the first C-shaped opening defines a first semi-circular opening forming extension, the first C-shaped opening being concentric with the first contact receiving opening, and a second spring of the three spring elements. The element includes a second contact receiving opening and terminates in a second semicircular opening forming extension, wherein a third spring element of the three spring elements comprises a third contact receiving opening and a second C-shaped opening, The second C-shaped opening defines a third semicircular opening forming extension, the second C-shaped opening is concentric with the second contact receiving opening, and the first and second C-shaped opening are 1st and 3rd Symmetrical with respect to the longitudinal axis of the spring element, the second spring is interposed between the first and third spring elements via the second contact such that the first, second and third semicircular opening forming extensions are uniformly stacked And the three spring elements are configured to provide a spring based opening means for damping contact vibrations. An electromagnetic relay for allowing current to pass through a switch terminal,
A coil assembly for selectively generating a coil radiating magnetic field;
A rotatable bridge assembly comprising opposing switch actuators and a bridge based magnetic field; And
First and second switch assemblies cooperable with the switch actuators, the coil radiating magnetic field being guided through the bridge assembly to impart bridge rotation via the bridge based magnetic field, the bridge rotation about a bridge axis of rotation The first and second switch actuators for displacing the switch actuators, the displaceable switch actuators for opening and closing the switch assemblies, and the closed switch assemblies for allowing current to pass therethrough. A second switch assembly,
The switch assemblies include spring-based opening overshifting means to enhance spring overtravel and to improve the closed switch position; Each of the switch assemblies comprises a spring assembly, each of the spring assemblies comprising three spring elements, a first spring element of the three spring elements comprising a first C-shaped opening, The first C-shaped opening forms a first semi-circular opening forming extension, the first C-shaped opening being concentric with the first contact receiving opening, and a second of the three spring elements is a second contact. A receiving opening and terminating within a second semi-circular opening forming extension, wherein a third spring element of the three spring elements comprises a third contact receiving opening and a second C-shaped opening; The shaped opening forms a third semi-circular opening forming extension, the second C-shaped opening is concentric with the second contact receiving opening, and the first and second C-shaped openings are the first and third springs. The longitudinal axis of the element Symmetrical with respect to the second spring, interposed between the first and third spring elements via the second contact such that the first, second and third semicircular opening forming extensions are uniformly stacked; Two spring elements configured to provide a spring based opening means for enhancing spring overtravel. An electromagnetic relay for allowing current to pass through a switch terminal,
A coil assembly for selectively generating a coil radiating magnetic field; A rotatable bridge assembly comprising opposing switch actuators and a bridge based magnetic field; And first and second switch assemblies cooperable with the switch actuators, the coil radiating magnetic field being guided through the bridge assembly to impart bridge rotation via the bridge based magnetic field, the bridge rotation about a bridge axis of rotation. The displaceable switch actuators for opening and closing the switch assemblies, the closed switch assemblies for enabling current to pass through the first switch, for displacing the switch actuators And a second switch assembly; And spring-based opening buffer means for damping switch vibrations when switching from an open switch position to a closed switch position,
Each of the switch assemblies comprises a spring assembly, each of the spring assemblies comprising three spring elements, a first spring element of the three spring elements comprising a first C-shaped opening, The first C-shaped opening forms a first semi-circular opening forming extension, the first C-shaped opening being concentric with the first contact receiving opening, and a second of the three spring elements is a second contact. A receiving opening and terminating within a second semi-circular opening forming extension, wherein a third spring element of the three spring elements comprises a third contact receiving opening and a second C-shaped opening; The shaped opening forms a third semi-circular opening forming extension, the second C-shaped opening is concentric with the second contact receiving opening, and the first and second C-shaped openings are the first and third springs. The longitudinal axis of the element Symmetrical with respect to the second spring, interposed between the first and third spring elements via the second contact such that the first, second and third semicircular opening forming extensions are uniformly stacked; Two spring elements are configured to provide a spring based opening means for damping contact vibration. An electromagnetic relay for allowing current to pass through a switch terminal,
A coil assembly comprising an energizing coil and a coil shaft, the coil for generating a magnetic field;
An armature assembly comprising switch actuators, a zigzag rotor bracket with opposing actuator coupling structures and a field shifting means, said field shifting means for transversing a magnetic field and magnetically inducing torque with respect to said coil axis. The armature assembly for actuating the switch actuators via the actuator coupling structures; And
As a first and second switch assembly, the switch actuators are cooperative with the switch assemblies to allow current to pass therethrough, the first and second switch assemblies being from a spring based opening, an open switch position. Each means for damping switch vibrations when switching to a closed switch position, each switch assembly comprising a spring assembly, each of the spring assemblies comprising three spring elements, the three spring elements Among them, a first spring element comprises a first C-shaped opening, the first C-shaped opening forming a first semi-circular opening forming extension, the first C-shaped opening in the first contact receiving opening. Concentric with respect to, wherein a second of the three spring elements comprises a second contact receiving opening and forms a second semi-circular opening Terminate in an extension, a third spring element of the three spring elements comprising a third contact receiving opening and a second C-shaped opening, the second C-shaped opening extending a third semicircular opening forming extension And the second C-shaped opening is concentric with the second contact receiving opening, the first and second C-shaped openings are symmetric about the longitudinal axes of the first and third spring elements, and A second spring is interposed between the first and third spring elements via the second contact such that the first, second and third semicircular opening forming extensions are uniformly stacked, and the three spring elements are in contact vibration. And first and second switch assemblies configured to provide a spring based opening means for cushioning the pressure. 3. The switch assembly of claim 2, wherein each of the switch assemblies comprises a spring assembly, each of the spring assemblies comprising three spring elements, wherein a first spring element of the three spring elements is a first C-shaped opening. Wherein the first C-shaped opening defines a first semi-circular opening forming extension, the first C-shaped opening being concentric with the first contact receiving opening, and a second of the three spring elements. The spring element includes a second contact receiving opening and terminates in a second semicircular opening forming extension, wherein a third spring element of the three spring elements comprises a third contact receiving opening and a second C-shaped opening; Wherein the second C-type opening forms a third semi-circular opening forming extension, the second C-type opening is concentric with the second contact receiving opening, and the first and second C-type openings are 1st and 3rd Symmetrical with respect to the longitudinal axis of the ring element, the second spring is interposed between the first and third spring elements via the second contact such that the first, second and third semicircular opening forming extensions are uniformly stacked And the three spring elements are configured to provide a spring based opening means for improving spring overtravel. 5. The method of claim 4, wherein each of the switch assemblies comprises a spring assembly, each of the spring assemblies comprising three spring elements, wherein a first spring element of the three spring elements is a first C-shaped opening. Wherein the first C-shaped opening defines a first semi-circular opening forming extension, the first C-shaped opening being concentric with the first contact receiving opening, and a second of the three spring elements. The spring element includes a second contact receiving opening and terminates in a second semicircular opening forming extension, wherein a third spring element of the three spring elements comprises a third contact receiving opening and a second C-shaped opening; Wherein the second C-type opening forms a third semi-circular opening forming extension, the second C-type opening is concentric with the second contact receiving opening, and the first and second C-type openings are 1st and 3rd Symmetrical with respect to the longitudinal axis of the ring element, the second spring is interposed between the first and third spring elements via the second contact such that the first, second and third semicircular opening forming extensions are uniformly stacked And the three spring elements are configured to provide a spring based opening means for damping contact vibrations. The electromagnetic relay of claim 1, wherein the actuator arms pull and close and push the switch assemblies simultaneously and simultaneously to enable current to pass therethrough. 9. The electromagnetic relay of claim 8 wherein the actuator arms pull and close and push the switch assemblies simultaneously and simultaneously to enable current to pass therethrough. delete delete delete delete delete delete delete delete delete delete delete

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