KR0123928B1 - Electromechanic switchgear with additive frontal block - Google Patents

Abstract

Electromechanical switch devices, such as motor circuit breakers, consist of a main device with an auxiliary contact module.

The main case 10 of the main device has a front opening 33 located between the power terminal access area 13 and the projection 20 for detecting the operation and / or display member. The case 10 is a cassette which is inserted into and held in the opening.

Description

Electromechanical switchgear with additional module

1 is a perspective view of a circuit breaker fitted with an additional module according to the present invention.

2 is an enlarged partial cross-sectional view of the circuit breaker of FIG.

3 and 4 are cross-sectional views showing insertion positions and operating positions of the additional module in the circuit breaker, respectively.

5 is a cross-sectional view taken along the line V-V of the additional module of FIG.

6 is a cross-sectional view of the plane VI-VI of the additional module of FIG.

7 is a view of a part of the transmission lever of FIG.

8 is a side view of the transmission lever.

9 to 12 illustrate various operation positions of the additional module.

13 and 14 are plan views of the front portion of a circuit breaker to which an additional module is mounted, respectively, as a normally closed contact or a normally open contact additional module.

FIG. 15 is a schematic diagram showing another embodiment of the additional mode of the present invention. FIG.

* Explanation of symbols for the main parts of the drawings

10: main case 13: front area

15: power supply terminal 20: protrusion

24 side of protrusion part 30 lever of circuit breaker

30a, 30b: arm 33: front opening

40: case of additional module 42: fixed contact

43: movable contact 44, 45: screw terminal

46: openings 48, 49: sides of the additional modal case

52: contact holder the spring 56: the lever of the additional module

60: lever 62: protrusion

The present invention relates to an electromechanical switch device composed of a main device to which an auxiliary contact modulus is attached.

Additive modules of this type are generally attached to contactors and circuit breakers or to devices in which the two devices are combined to serve to provide auxiliary signals or to control electrical circuits.

U.S. Patent Nos. 4, 622, and 444 disclose circuit breakers having a case in which an opening for accommodating the additional module is formed to facilitate the detachment of the additional module. This conventional configuration is worth improving in terms of insertion and removal of additional modules and identification and wiring of these terminals.

An object of the present invention is to provide a switch device in which the additional module is easily mounted.

In particular, it is an object of the present invention to be able to attach the additional module in the correct position without changing its depth or width after installation of the main unit.

It is a further object of the present invention to simplify the mechanical means used in the case of the main unit to convey the opening and closing instructions to the main contact and to convey the status indication of the main contact to the additional module.

Another object of the present invention is to facilitate identification and wiring of the terminals.

According to the present invention, a plurality of electrodes each consisting of at least one movable contact which cooperates with at least one fixed contact and which opens and closes each current path between power terminals connected to the respective contacts is provided in correspondence with each current path. The main case is provided with a control mechanism for controlling the opening and closing of the contact by operating the movable contact of each electrode through a transmission member having an on position and an off position according to the state of the mechanism, and an auxiliary contact operated by the transmission member. The present invention relates to an electromechanical switch device including an electric circuit and comprising an additional module including a case added to the main case.

According to the present invention, the main case has a front opening located between the power terminal access area and the projection supporting the operation and / or display member, and the case of the additional module is a cassette inserted into and held in the opening. .

Thus, the additional modulus is easily removable, especially since its case can slide or even be mounted on the horizontal plane of the protrusion of the main case. Furthermore, the additional module can be added to the main case after installing the main unit without changing its width or depth. The switch device may also include a transfer lever comprising a receiving arm actuated or attached by a tripping mechanism in the main case and / or a contactor of the solenoid, and a control arm applied to the actuating member. It is preferable that the angles form an angle of approximately 90 ° to each other. This simplifies the manufacture and assembly of the switch device.

Advantageously, the additional modulus may also include retractable protruding means cooperating with the wall of the main case to force the actuating lever upon insertion. In this way, regardless of the state of the switch device and hence the position of the transfer lever, the actuating lever of the additional module can be inserted in the correct position with respect to the cooperative portion of the transfer lever.

In addition, the terminals of the additional modulus of the present invention are preferably arranged in a five-eye shape, that is, a five-point arrangement, for example, such as dice, together with the terminals of the switch device in order to facilitate wiring. In addition, the additional module may be mounted so as to be reversed at the front opening to operate as the normally closed contact additional module or the normally open additional module without modifying the additional module or the switch device.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

The switch device of the present invention is a motor circuit breaker including a case (10) composed of a body portion or base (12) fixed to a cover (11) on the front and a support member on the back.

Areas 13 and 14 for accessing the power supply terminal 15 are formed on the front surface of the case 10, on the opposite side to the fixed shaft. Screw holes can be inserted into the hole portions 16 formed in these areas to remove the power conductors, and hole portions formed in the upper and lower regions 18 perpendicular to these areas 13 and 14 ( 17, the conductor is inserted.

In addition, the case 10 includes a control or display member 22 and at least one manual control knob 23 or the like on a flat front surface 21 parallel to the regions 13 and 14. As shown in FIG. 1, as shown in FIG. 1, the surfaces 24 and 25 which are normally arranged in the horizontal direction are formed parallel to the said area | region 18. As shown in FIG.

In particular, the protrusion 20 of the case 10 accommodates a trip member for controlling the movement of the control mechanism 26 and the contact bridge 27 that cooperate with the handle 23. These bridges are movable along the X axis perpendicular to the front face 21 and have a moving contact 29 which cooperates with the fixed contact 28 to open and close each current path between the two terminals 15.

These contacts are opened by the control mechanism 26 by an operation to be applied to the contact bridge supporting member in the direction of arrow F1 on the end of the lever 30. The contact can also be opened by a portion of the modulus added to the case 10 or by a solenoid in the case. In other words, this opening operation can be effected at the midpoint of the longer arm 30a of the lever 30 in the direction of arrow F2. The contact may also be closed in a known manner by the handle 23 or the solenoid.

The lever 30 is pivotally supported on the journal 31, and is biased by the light spring 32 in the direction of closing the contacts 28, 29. As shown in FIG. Shorter arms 30b, which operate directly against the additional modulus, are connected in a crank shape. The arms 30a and 30b form an angle of almost 90 ° to each other.

According to the present invention, a front opening 33 is formed on the surface 24 of the case between the projection 20 and the front region 13 for accessing the terminal 15. A removable additional modulus, for example in the shape of being coupled to the hook, can be inserted into the opening 33 by a translational movement such as a cassette. In other words, the width of the case 40 of the additional module is almost equal to that of the main case 10, and in this example, the width of the case 40 is equal to the width of the case 10 subtracted by the thickness of the side wall thereof. have. When no additional module is mounted, the opening 33 is shielded with a detachable band. The depth of the case 43 and the insertion amount into the case 10 are configured such that the front face of the case 40 does not protrude into the front face 21 of the case 10.

The case 40 of the additional modulus is composed of a body portion 40a and a cover 40b (see FIG. 6) or a shell-like member, and is formed between two screw terminals 44 and 45. It includes a fixed contact member 42 and a moving contact 43 to form or break a single contact electrical connection. The shaft D1 of the opening 46 formed to access the screw is parallel to the shaft D2 of the screw of the power supply terminal 15 and is sandwiched between these shafts D2 to facilitate wiring ( See FIG. 13).

The conductor insertion opening 47 is opened on the large horizontal plane 48 of the case 10 and the large horizontal plane 49 located opposite the surface. In addition, the dual contact type electrical connection can be naturally formed in the case 40.

An opening 50 is formed between the openings 46 formed to access the terminals 44 and 45 on the front surface of the case 40, and the opening 50 is centered on the center surface Y of the case. The operation end of the latch 60 mentioned later is accommodated.

The additional modulus is capable of reversing about an axis perpendicular to the plane of the front face 21 of the circuit breaker.

By inverting this additional module, the additional module takes two different positions. In one of these positions, the face 49 of the case 40 slides on the face 24 of the protrusion 20 of the case 10 when the case 40 is inserted into the opening 33, and in the other position. The face 48 of the seam case 40 slides over the face 24.

Inside the case 40 of the additional module is configured as follows.

The movable contact 43 is supported by one end of the leaf spring 52 which is opposing the spring by the contact pressure spring 53, and the other end of the leaf spring 52 is connected to the terminal 44. It is buried in 54. The fixed contact 42 is supported by another connecting member 55 connected to the terminal 45.

The contact holder plate spring 52 is supported such that one end 56a is pivotally supported on the journal about the axis D3 and the other end, that is, the free end 56b is formed at the rear of the case 40. It is actuated by the lever 56 reaching the opening 57. The leaf spring 52 and the lever 56 cooperate at the midpoint 56c of the lever. A sliding member may be used instead of the lever.

In the first embodiment (Figs. 2 to 5), the latch is composed of a lever 60 independent of the lever 56, in particular in cooperation with the lever in the insertion area. In FIG. 1, the casing 10 includes at least one snap fastener member attached to the case 10 and / or the case 40.

The latch lever 60 (FIGS. 2 to 5) is introduced into the operation head 61 accommodated in the opening 50 and the opening 58 of the case 40, so that each of the front opening 33 One on each side, it has a projection 62 engaged with one or the other of the two openings 63 and 64 formed in the case 10. The lever 60 is pivotally supported about the axis D4 of the case 40 parallel to the axis D3 and the longitudinal axis of the leaf spring 53, which axis is perpendicular to the plane Y.

The lever 60 also has a heel-piece 66 formed on the opposite side of the protrusion 62, which is applied to the lever 56 to push it into the auxiliary contact open position upon insertion. Finally the lever 60 is poured to the position of FIG. 4 by a spring or by a spring lug 67.

The additional module has a first position (FIGS. 9 and 10) showing a normal open contact addition function and a second position (FIGS. 2 to 4, 11 and 8) showing a normal closed contact addition function. 12 degrees). Appropriate function indications 70F (F is normally open) and 70O (O is normally closed) are indicated on the opposing surfaces 48 and 49 of the case 40 of the additional module, respectively. Therefore, since the function of the inserted module is clearly displayed, the indication for the function that is not performed is not revealed. FIG. 13 shows the normal closed contact function, and FIG. 14 shows the normal open contact function.

The first arm 30a of the lever 30 of the circuit breaker of the present invention operates a member supporting the power contact, and the second arm 30b is a lug 56b of the other end of the lever 56 of the additional module. Works). The lug 56b is biased with respect to the center plane Y of the case 40.

The distal end portion of the arm 30b of the lever 30 includes a finger portion 71F that operates in the normal open contact addition function and a finger portion 70O that operates in the normal closed contact addition function. Each finger part opens the auxiliary contact when the main contact is opened (normal open contact added) and closed (normal closed contact added). The fingers 71F and 71O act against the lug 56b in the opposite direction and are aligned with the axes D5 and D6 symmetric to the plane Y. That is, the lug 56b ' Aligned with axis D5 (normal open contact addition) or aligned with axis D6 (normal closed contact addition) When the additional module contains other contacts (for example, 4-terminal additional module May be provided with other finger portions 71M and 71N shown in dashed lines in FIG. 7 on the lever 30 for operating the other control lever, such as the lever 56).

The additional module is mounted and operated by the following method.

When fitting the additional modulus to the circuit breaker, the worker lifts the top roll additional modulus to the appropriate side and slides the case 40 along the horizontal plane 24 of the case 10 to the opening 33. . When the protrusion 62 of the lever 60 is forcibly withdrawn, the lever 60 rotates clockwise, and the hile piece 56 pushes the lever 56 that rotates in the same direction. Therefore, regardless of the state of the circuit breaker, the lug 56b is positioned on the proper side of the finger portion 71O or 71F. At the end of insertion, it is limited by the bearing 72 on the case 10, so that the projection 62 is accommodated in the opening 63 or 64 to hold the additional module.

It is of course possible that the additional modulus can be attached to the main unit without changing its depth or width, or disturbing its mounting or being disturbed by the mounting of a predetermined additional modulus on the side.

When the normal open contact addition function is selected (FIGS. 9 and 10), the (70F) mark can be seen on the face 49 of the case 10. FIG. When the main contact of the circuit breaker is closed (FIG. 9), the lever 30 moves counterclockwise, and the lever 56 moves to the left by the spring 53 by the finger portion 71F, and the auxiliary contact (42) and (43) are closed. When the main contact of the circuit breaker is opened (Fig. 10), the lever moves clockwise, and the finger 71F is applied to the lug 56b. In addition, the lever 56 pushes the leaf spring 52 back to compress the spring 53 to separate the contacts 42 and 43.

Next, when the normal closed contact addition function is selected (FIGS. 10 and 12), a mark 70O can be seen on the surface 48 of the case 10. FIG. When the main contact of the circuit breaker is closed (Fig. 10), the finger portion 71 is applied to the lug 56b to open the auxiliary contact. On the other hand, when the main contact is opened (Fig. 12), the lug 56b moves to the right by the finger portion 7O to close the auxiliary contact.

In this embodiment shown in FIG. 15, the actuating lever 56 moves to its auxiliary contact open position upon insertion. To this end, the lever 56 has a projection 56d having the same function as the aforementioned projection 62. In addition, the case 40 is engaged with the case 10 by a lug or snap fastener member 73 depending on the elastic force of the case wall or its specific part.

To remove the additional module, the operator operates the latch lever 60 to withdraw the protrusion 62 (FIGS. 2 to 5) or release the lug or snap fastener member 73, and then the case ( Pull the case 40 from 10).

Although the present invention has been described with respect to the motor circuit breaker, it can be similarly applied to switch devices such as a contactor, a contactor / circuit breaker, and a line circuit breaker, and other modifications are of course included in the present invention. It is also possible to replace the pivotable transmission lever and the pivotable operating lever with a translational member.

Claims (12)

A plurality of electrodes each consisting of at least one movable contact cooperating with at least one fixed contact and opening and closing each current path between power terminals connected to the respective contacts are provided in correspondence with the current path, and in the state of the control mechanism. Therefore, the main case is provided with a control mechanism for controlling the opening and closing of the contact by operating the movable contact of each electrode through the transfer member having an on position and an off position, and an electric circuit having an auxiliary contact operated by the transfer member; In the electromechanical switch device consisting of an additional module made of a case added to the main case, the main case 10 is a projection 20 carrying the power terminal access area 13 and the operation and / or display member It has a front opening 33 located between, the case 40 of the additional module is inserted into the opening Additional base dyuul the electromechanical switch device mounted on the front, characterized in that the cassette is. According to claim 1, wherein the case 40 of the additional module, the projections 20 of the main case 10 Electromechanical switch device mounted on the front side, characterized in that the additional module is inserted into the front opening (33) by sliding along the horizontal surface (24). 3. The electromechanical switch device according to claim 2, wherein the case (40) of the additional module is placed on the horizontal surface (24) of the protrusion (20) when mounted. 4. The auxiliary lever according to any one of claims 1 to 3, wherein the transmission member of the main case is a pivotable lever 30, and the additional module is actuated by an arm 30b of the pivotable lever 30. An electromechanical switch device equipped with an additional module, characterized in that it comprises a member (56) for operating (42) and (43). The control lever (30) according to claim 4, wherein the transfer lever (30) is applied to the receiving arm (30a) and the actuating member (56) actuated or attached by a contact mechanism of the tripping mechanism and / or the slave in the main case (10). Electromechanical switch device mounted on the front side of the additional module, characterized in that it has an arm (30b) 6. The electromechanical switch device according to claim 5, wherein the receiving arm (30a) and the control arm (30b) are substantially perpendicular to each other. 5. A channel according to claim 4, wherein each channel of said additional module is actuated by an actuating member (56). Electromechanical switch device mounted on the front side of the additional module, characterized in that consisting of a pair of contacts including a movable contact 43 supported by the leaf spring (52). 4. The additional modulus according to any one of the preceding claims, wherein the additional modulus comprises retractable protruding means (62) which cooperates with the wall of the main case (10) to force the actuating member (56) upon insertion. Electromechanical switch device, characterized in that the additional module is characterized in that the front. 4. The additional module according to any one of claims 1 to 3, wherein the additional module is coupled with a latch (60) accessible from the front of the main case and holding the additional module in the front hole. Electromechanical switchgear with modul on the front. 4. The terminal according to any one of claims 1 to 3, wherein the terminals 44 and 45 of the case 40 of the additional module are arranged in a 5-point arrangement together with the terminals 15 of the main case 10. Electromechanical switchgear with additional modul on the front. The case 40 according to any one of claims 1 to 3, wherein the case 40 of the additional module has a width substantially equal to the width of the main case 10, and at the mounting position, the case 40 is placed in front of the main case. Electromechanical switch device mounted on the front side of the additional module, characterized in that it has a depth that does not protrude beyond the surface (21) A plurality of electrodes each consisting of at least one movable contact cooperating with at least one fixed contact and for opening and closing each current path between power terminals connected to the respective contacts are provided in correspondence with each current path, and the state of the control mechanism. According to the present invention, the main circuit is provided with a control mechanism for controlling the opening and closing of the contact by operating the movable contact of each electrode through a transfer member having an on position and an off position, and an electric circuit having an auxiliary contact operated by the transfer member. In the electromechanical switch device comprising an additional module consisting of a case that is added to the main case, the case 40 of the additional module is detachably inserted into the opening 33 of the main case 10 and maintained. A cassette having an auxiliary contact actuating member (56), wherein the transmitting member of the main case is in the main case (10). The additional modulus is mounted, characterized in that it is a pivotable lever 30 having a receiving arm 30a actuated or attached by a contact of the trip mechanism and / or solenoid, and a control arm 30b actuated on the actuating member. Electromechanical switchgear.