JP2015000811A - Elevator control panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elevator control panel capable of preventing leakage of a magnetic field from a transformer housed inside, and flexibly responding to the restriction concerning the shape of the control panel while suppressing an increase in the size of the control panel.SOLUTION: An elevator control panel includes: a housing made of a magnetic material which is installed in a machine room or in a hoistway of an elevator, and has a box-like shape with an opening formed in the front surface, and in which a transformer that a control circuit of the elevator has is housed inside the box-like shape; and magnetic shield means made of a magnetic material which is arranged at least from the left edge to the right edge of the opening of the housing, and in which each of the right and left ends is magnetically coupled with the housing.

Description

  The present invention relates to an elevator control panel.

  Conventionally, a winding having end insulation at both ends in the axial direction, a winding restraining plate that sandwiches the winding through the end insulation, and a pair of winding restraints at a plurality of locations outside the winding. A reactor including a connecting bolt that applies a tightening load between the plates, and a magnetic shield that is supported by the winding restraining plate and the connecting bolt and is formed of a good electrical conductor that concentrically surrounds the winding is known (for example, Patent Document 1).

JP 09-082536 A

  The control panel of the elevator is generally installed in the machine room or the hoistway of the elevator. Here, in view of the recent trend toward effective utilization of the space in the machine room and the hoistway, further downsizing and higher density of the control panel are required. Furthermore, due to the installation space of the control panel, restrictions imposed on the shape of the control panel are becoming stricter.

  However, the conventional reactor shown in Patent Document 1 includes a magnetic shield outside the winding, and the apparatus is large. For this reason, if the transformer which employ | adopted such a reactor is accommodated in the control panel of an elevator, a control panel will also enlarge. In addition, it becomes difficult to cope with restrictions on the shape of the control panel.

  The present invention has been made in order to solve such a problem, and can prevent leakage of a magnetic field from a transformer housed inside, and can suppress the enlargement of the size of the control panel, and can be controlled. An elevator control panel that can flexibly cope with restrictions on the shape of the panel is obtained.

  In the elevator control panel according to the present invention, the elevator control panel is made of a magnetic material, is installed in the elevator machine room or in the hoistway, has a box shape with an opening formed on the front surface, and the elevator control is inside the box shape. A housing in which a transformer included in the circuit is housed, and a magnetic body, are disposed from at least the left edge to the right edge of the opening of the housing, and both the left and right ends are magnetically coupled to the housing. And a magnetic shield means.

  In the elevator control panel according to the present invention, it is possible to prevent leakage of the magnetic field from the transformer housed inside, and to suppress the enlargement of the size of the control panel, and to the restriction on the shape of the control panel. Also has the effect of being able to respond flexibly.

It is a perspective view of the control panel of the elevator which concerns on Embodiment 1 of this invention. It is a perspective view of the control panel of the elevator which concerns on Embodiment 2 of this invention. It is a perspective view of the control panel of the elevator which concerns on Embodiment 3 of this invention. It is a perspective view of the control panel of the elevator which concerns on Embodiment 4 of this invention. It is a perspective view of the control panel of the elevator which concerns on Embodiment 5 of this invention. It is a perspective view of the control panel of the elevator which concerns on Embodiment 6 of this invention. It is a front view of the transformer accommodated in the control panel of the elevator which concerns on Embodiment 7 of this invention. It is a front view of the transformer accommodated in the control panel of the elevator which concerns on Embodiment 8 of this invention.

  The present invention will be described with reference to the accompanying drawings. Throughout the drawings, the same reference numerals indicate the same or corresponding parts, and redundant description thereof will be simplified or omitted as appropriate.

Embodiment 1 FIG.
1 is a perspective view of an elevator control panel according to Embodiment 1 of the present invention. The control panel 1 shown in FIG. 1 is installed in a hoistway (not shown) of an elevator or a machine room (not shown) provided at the top of the hoistway. The control panel 1 includes a housing 2.

  The housing 2 is made of a magnetic material such as a sheet metal. The housing 2 has a box shape with an opening formed on the front surface. That is, the housing 2 includes a back surface portion, an upper surface portion, a lower surface portion, and left and right side surface portions. And the front side of the housing | casing 2 is opened. A front left edge 2a and a front right edge 2b having a certain width are formed on the left and right edges of the front opening. Inside the box-shaped housing 2 formed in this way, the transformer 3 included in the control circuit of the elevator is accommodated. Specifically, the transformer 3 is, for example, a transformer or a reactor.

  A magnetic shield sheet 4 is provided in the opening on the front surface of the housing 2. The magnetic shield sheet 4 is made of a magnetic material having a sheet shape. The magnetic shield sheet 4 is flexible enough to be wound. A winding mechanism 5 is provided on the front left edge 2 a of the housing 2. The left end of the magnetic shield sheet 4 is connected to the winding mechanism 5. The winding mechanism 5 is configured so that the magnetic shield sheet 4 can be wound from the left end side. The winding mechanism 5 is made of a magnetic material. The left end of the magnetic shield sheet 4 is magnetically coupled to the housing 2 via the winding mechanism 5.

  The right end of the magnetic shield sheet 4 can be locked to the front right edge 2 b of the housing 2 via the locking portion 6. The locking portion 6 includes a magnet attached in the vicinity of the right end portion of the magnetic shield sheet 4. And by adsorb | sucking the front surface right edge part 2b with this magnet, the right end of the magnetic shield sheet 4 is latched by the front surface right edge part 2b. In a state where the right end of the magnetic shield sheet 4 is locked to the front right edge 2 b of the housing 2 by the locking portion 6, the right end of the magnetic shield sheet 4 is magnetically coupled to the housing 2.

  In the control panel 1 configured as described above, during the operation of the elevator, the magnetic shield sheet 4 is pulled out from the winding mechanism 5, and the right end portion of the magnetic shield sheet 4 is connected to the front right edge 2 b of the housing 2 by the locking portion 6. Lock to. Then, the magnetic shield sheet 4 is disposed from the left edge to the right edge of the opening on the front surface of the housing 2.

  In this state, the left and right ends of the magnetic shield sheet 4 are magnetically coupled to the housing 2. The housing 2 and the magnetic shield sheet 4 are both magnetic materials. Therefore, the casing 2 and the magnetic shield sheet 4 form a magnetic loop that continuously surrounds the front, rear, left and right of the transformer 3, and the magnetic field generated by the operation of the transformer 3 leaks to the outside of the casing 2. Can be prevented.

  On the other hand, when a worker or the like accesses the transformer 3 or the like in the housing 2, the right end portion of the magnetic shield sheet 4 by the locking portion 6 is unlocked from the housing 2. . Then, the magnetic shield sheet 4 is wound and stored by the winding mechanism 5. By doing so, the opening on the front surface of the housing 2 is opened, and workers and the like can easily access various devices such as the transformer 3 in the housing 2 from this opening.

  Here, when a magnetic field is generated from the transformer 3 in a state where the magnetic shield sheet 4 is pulled out from the winding mechanism 5 and locked to the locking portion 6 (that is, a magnetic shield loop is formed). An induced electromotive force is generated in the magnetic shield sheet 4 by the magnetic field.

  Therefore, an LED circuit driven by a voltage (induced electromotive force) generated in the magnetic shield sheet 4 may be provided on the magnetic shield sheet 4. By doing so, the voltage generated in the magnetic shield sheet 4 when the magnetic field generated by the transformer 3 is shielded is effectively used, and the LED of the LED circuit is caused to emit light, and the transformer 3 is operating. This can be notified to workers.

  Further, instead of this LED circuit or together with the LED circuit, a fan circuit driven by a voltage (inductive electromotive force) generated in the magnetic shield sheet 4 may be provided in the magnetic shield sheet 4. By doing in this way, the inside of the housing | casing 2 can be cooled with a fan circuit, utilizing effectively the voltage which generate | occur | produces in the magnetic shield sheet | seat 4 when shielding the magnetic field generated by the transformer 3. FIG.

  In addition, about the latching | locking part 6, you may make it use a protrusion, a screw | thread, etc. other than the example using the magnet demonstrated here. When using a protrusion, for example, a protrusion is provided on the front right edge 2b and a locking hole is provided at a corresponding position on the right end of the magnetic shield sheet 4. Then, the magnetic shield sheet 4 is locked by hooking this protrusion into the locking hole. Moreover, when using a screw, the magnetic shield sheet 4 is locked by clamping the right end of the magnetic shield sheet 4 between the head of the screw and the front right edge 2b and tightening the screw.

  The elevator control panel configured as described above is made of a magnetic material, is installed in the elevator machine room or in the hoistway, and has a box shape with an opening formed on the front surface. The housing 2 in which the transformer 3 included in the control circuit is housed, and made of a magnetic material, are arranged from at least the left edge to the right edge of the opening of the housing 2, and the left and right ends are magnetically coupled to the housing 2. And a magnetic shield sheet 4 which is a magnetic shield means.

  For this reason, the magnetic shield can be formed in a small space by forming the magnetic shield with respect to the transformer 3 (transformer, reactor, etc.) in the control panel by utilizing the casing 2 that is a magnetic material. . Therefore, leakage of the magnetic field from the transformer accommodated in the inside can be prevented, the enlargement of the size of the control panel can be suppressed, and restrictions on the shape of the control panel can be flexibly dealt with.

  In addition, a sheet-like magnetic shield sheet 4 is used as the magnetic shield means, provided at one end of the magnetic shield sheet 4, a winding mechanism 5 that winds the magnetic shield sheet 4 from the one end side, and the magnetic shield sheet 4. By providing the locking portion 6 provided at the other end and locking the other end to the housing 2, access to the inside of the control panel at the time of maintenance and inspection becomes easy.

Embodiment 2. FIG.
FIG. 2 is a perspective view of an elevator control panel according to Embodiment 2 of the present invention. In the first embodiment, the configuration example in which the magnetic shield sheet 4 is pulled out / wound in the left-right direction has been described. On the other hand, in the second embodiment described here, the direction in which the magnetic shield sheet 4 is pulled out / wound up is the vertical direction.

  That is, as shown in FIG. 2, the winding mechanism 5 is attached to the upper edge portion of the opening on the front surface of the housing 2. The winding mechanism 5 is supported in the vicinity of the upper ends of the front left edge 2a and the front right edge 2b. The locking portion 6 is provided near the left and right edges at the lower end portion of the magnetic shield sheet 4. As in the first embodiment, the locking portion 6 can use a magnet, a protrusion, or a screw.

  In the control panel 1 configured as described above, during operation of the elevator, the magnetic shield sheet 4 is pulled out from the winding mechanism 5 and the lower end portion of the magnetic shield sheet 4 is locked to the housing 2 by the locking portion 6. To do. At this time, the left edge of the magnetic shield sheet 4 near the left edge is locked to the front left edge 2a, and the right edge is locked to the front right edge 2b.

  In this state, the left and right ends of the magnetic shield sheet 4 are magnetically coupled to the housing 2. The housing 2 and the magnetic shield sheet 4 are both magnetic materials. Therefore, the casing 2 and the magnetic shield sheet 4 form a magnetic loop that continuously surrounds the front, rear, left and right of the transformer 3, and the magnetic field generated by the operation of the transformer 3 leaks to the outside of the casing 2. Can be prevented. At this time, the magnetic field generated from the transformer 3 can be reliably shielded by making the lower end of the magnetic shield sheet 4 lower than the lower end of the transformer 3.

  On the other hand, when an operator or the like accesses the transformer 3 or the like in the housing 2, the locking portion 6 is unlocked from the lower end portion of the magnetic shield sheet 4 to the housing 2. . Then, the magnetic shield sheet 4 is wound and stored by the winding mechanism 5. By doing so, the opening on the front surface of the housing 2 is opened, and workers and the like can easily access various devices such as the transformer 3 in the housing 2 from this opening.

  Other configurations are the same as those in the first embodiment, and a description thereof will be omitted. In the elevator control panel configured as described above, the same operational effects as those of the first embodiment can be obtained.

Embodiment 3 FIG.
FIG. 3 is a perspective view of an elevator control panel according to Embodiment 3 of the present invention. In Embodiment 3 described here, a slit is provided in the magnetic shield sheet in the configuration of Embodiment 1 or Embodiment 2 described above.

  That is, in the third embodiment, the magnetic shield sheet 4 is provided with a plurality of slits 4a as shown in FIG. Here, a plurality of slits 4a extending in the left-right direction are arranged in parallel vertically. At this time, the slit 4a is arranged so that the continuity in the left-right direction of the magnetic shield sheet 4 is not impaired.

  The width, thickness, material, arrangement of the slits 4a, etc. of the magnetic material used as the magnetic shield sheet 4 are appropriately determined according to the specifications of the control panel 1 and the equipment such as the transformer 3 accommodated in the control panel 1. Is done. 3 shows an example in which the slit 4a is provided in the configuration of the first embodiment in which the magnetic shield sheet 4 is drawn / wound in the left-right direction, but the magnetic shield sheet 4 is drawn / wound in the vertical direction. In the configuration of the second embodiment, the slit can be provided in the same manner. Other configurations are the same as those in the first or second embodiment, and detailed description thereof is omitted.

  In the elevator control panel configured as described above, in the configuration of the first or second embodiment, the magnetic shield sheet 4 which is a sheet-like magnetic shield means is provided with slits 4a penetrating in the front-rear direction. It is.

  For this reason, in addition to the effects similar to those of the first embodiment or the second embodiment, ventilation / heat radiation in the housing 2 is promoted through the slits 4a of the magnetic shield sheet 4, and the housing 2 Can improve the heat dissipation.

Embodiment 4 FIG.
FIG. 4 is a perspective view of an elevator control panel according to Embodiment 4 of the present invention.
In the fourth embodiment described here, instead of the magnetic shield sheet in the first embodiment, a substantially U-shaped magnetic shield body in plan view is used.

  That is, as shown in FIG. 4, the magnetic shield body 7 is attached to the back surface portion 2 c of the housing 2. The magnetic shield body 7 is formed by so-called hat-bending a member made of a flat belt-like magnetic body (for example, a steel plate). Therefore, the magnetic shield body 7 is substantially U-shaped in plan view except for both ends.

  Both end portions of the magnetic shield body 7 are locked to the inner wall of the back surface portion 2 c of the housing 2 via the locking portions 6. The locking portion 6 includes magnets provided at both ends of the magnetic shield body 7. And the magnetic shield body 7 is latched and attached to the back surface part 2c by adsorb | sucking the magnet of the both ends of these magnetic shield bodies 7 to the back surface part 2c.

  The magnetic shield body 7 is disposed so as to surround the front side and the left and right sides of the transformer 3 in the housing 2. The rear surface of the transformer 3 is attached to the back surface portion 2 c of the housing 2. Similarly to the magnetic shield body 7, the back surface portion 2 c of the housing 2 is also a magnetic body. Therefore, a magnetic loop that surrounds the front, rear, left and right of the transformer 3 is formed by the magnetic shield body 7 and the back surface portion 2 c, and a magnetic field generated by the operation of the transformer 3 leaks to the outside of the housing 2. Can be prevented.

  In FIG. 4, only the back surface portion 2 c of the housing 2 is illustrated. The casing 2 in the fourth embodiment only needs to include at least a back surface portion 2c to which the transformer 3 is attached. However, it is not hindered to use the box-shaped housing 2 having an opening on the front surface as in the first to third embodiments. When the box-shaped housing 2 is used, the magnetic shield body 7 is preferably disposed from the left edge to the right edge of the front opening.

  Moreover, you may make it use the screw | thread for the latching | locking part 6 for attaching the magnetic shield body 7 besides using a magnet. However, by using a magnet, there is an advantage that restrictions on the mounting position of the magnetic shield body 7 with respect to the back surface portion 2c are reduced, and the mounting position of the magnetic shield body 7 can be determined relatively freely.

  Furthermore, although FIG. 4 illustrates an example in which only one magnetic shield body 7 is attached, a plurality of magnetic shield bodies 7 may be provided as necessary.

  In the elevator control device configured as described above, in addition to being able to achieve the same effects as those of the first embodiment, the magnetic shield is formed with a higher degree of freedom without being limited by the shape of the housing 2. Is possible. Therefore, a more appropriate magnetic shield can be formed by the magnetic shield body according to the direction of the leakage magnetic flux of the transformer 3. Further, it is possible to flexibly cope with restrictions imposed on the shape of the control panel 1. Furthermore, the magnetic shield body can be easily removed.

Embodiment 5 FIG.
FIG. 5 is a perspective view of an elevator control panel according to Embodiment 5 of the present invention.
In the fifth embodiment described here, instead of the magnetic shield sheet in the first embodiment, a flat strip-shaped magnetic shield body is used.

  That is, as shown in FIG. 5, the magnetic shield body 7 is provided in the opening on the front surface of the housing 2. The magnetic shield body 7 is made of a magnetic body having a flat strip shape. The left and right ends of the magnetic shield body 7 can be locked to the front left edge 2a and the front right edge 2b of the housing 2 via the locking portions 6, respectively.

  The locking portion 6 includes magnets attached in the vicinity of both left and right end portions of the magnetic shield body 7. And by adsorb | sucking the front left edge part 2a and the front right edge part 2b with this magnet, the both left and right ends of the magnetic shield body 7 are latched by the front left edge part 2a and the front right edge part 2b, respectively. In a state where the left and right ends of the magnetic shield body 7 are locked to the front left edge 2a and the front right edge 2b of the housing 2 by the locking portions 6, the left and right ends of the magnetic shield body 7 are magnetically connected to the housing 2 respectively. Combined with

  In the control panel 1 configured as described above, the left and right ends of the magnetic shield body 7 are locked to the front left edge 2a and the front right edge 2b during operation of the elevator. Then, the magnetic shield body 7 is disposed from the left edge to the right edge of the opening on the front surface of the housing 2.

  In this state, the left and right ends of the magnetic shield body 7 are magnetically coupled to the housing 2. The housing 2 and the magnetic shield body 7 are both magnetic bodies. Therefore, the casing 2 and the magnetic shield body 7 form a magnetic loop that continuously surrounds the front, rear, left, and right of the transformer 3, and the magnetic field generated by the operation of the transformer 3 leaks to the outside of the casing 2. Can be prevented.

  On the other hand, when a worker or the like accesses the transformer 3 in the housing 2, the left and right ends of the magnetic shield body 7 are removed from the front left edge 2a and the front right edge 2b. By doing so, the opening on the front surface of the housing 2 is opened, and workers and the like can easily access various devices such as the transformer 3 in the housing 2 from this opening.

  As in the fourth embodiment, the locking portion 6 for attaching the magnetic shield body 7 may be a screw in addition to a magnet. However, the use of magnets has the advantage that there are less restrictions on the mounting position of the magnetic shield body 7 with respect to the housing 2, and the mounting position of the magnetic shield body 7 can be determined relatively freely.

  Moreover, although FIG. 5 illustrates an example in which only one magnetic shield body 7 is attached, a plurality of magnetic shield bodies 7 may be provided as necessary. Other configurations are the same as those in the first embodiment.

  The elevator control panel configured as described above can achieve the same effects as those of the first embodiment with a simpler configuration.

Embodiment 6 FIG.
6 is a perspective view of an elevator control panel according to Embodiment 6 of the present invention.
In the sixth embodiment described here, one end of the magnetic shield body of the fifth embodiment is attached to the front edge of the housing via a shaft so that the magnetic shield body can rotate with respect to the housing. It is a thing.

  That is, as shown in FIG. 6, the magnetic shield body 7 is provided in the opening on the front surface of the housing 2. The magnetic shield body 7 is made of a magnetic body having a flat strip shape. The left end portion of the magnetic shield body 7 is rotatably attached to the front left edge portion 2 a of the housing 2 via the shaft 8. The shaft 8 is made of a magnetic material. The left end of the magnetic shield body 7 is magnetically coupled to the housing 2 via the shaft 8.

  The right end of the magnetic shield body 7 can be locked to the front right edge 2 b of the housing 2 via the locking portion 6. The locking portion 6 includes a magnet attached in the vicinity of the right end portion of the magnetic shield body 7. And by adsorbing the front right edge 2b with this magnet, the right end of the magnetic shield body 7 is locked to the front right edge 2b. Note that a protrusion or a screw can be used for the locking portion 6 as in the first embodiment. In a state where the right end of the magnetic shield body 7 is locked to the front right edge 2 b of the housing 2 by the locking portion 6, the right end of the magnetic shield body 7 is magnetically coupled to the housing 2.

  In the control panel 1 configured as described above, when the elevator is operated, the magnetic shield body 7 is rotated around the shaft 8, and the right end portion of the magnetic shield body 7 is locked by the locking portion 6 to the front right edge portion of the housing 2. Lock to 2b. Then, the magnetic shield body 7 is disposed from the left edge to the right edge of the opening on the front surface of the housing 2.

  In this state, the left and right ends of the magnetic shield body 7 are magnetically coupled to the housing 2. The housing 2 and the magnetic shield body 7 are both magnetic bodies. Therefore, the casing 2 and the magnetic shield body 7 form a magnetic loop that continuously surrounds the front, rear, left, and right of the transformer 3, and the magnetic field generated by the operation of the transformer 3 leaks to the outside of the casing 2. Can be prevented.

  On the other hand, when a worker or the like accesses the transformer 3 or the like in the housing 2, the right end portion of the magnetic shield body 7 by the locking portion 6 is unlocked from the housing 2. . Then, the magnetic shield body 7 is rotated upward or downward about the shaft 8 (FIG. 6 shows a case where the magnetic shield body 7 is rotated downward). By doing so, the opening on the front surface of the housing 2 is opened, and workers and the like can easily access various devices such as the transformer 3 in the housing 2 from this opening.

  In the elevator control device configured as described above, the same effect as that of the fifth embodiment can be obtained. In addition, by supporting one end of the magnetic shield body with the shaft, the magnetic shield body can be configured with a simple configuration. It can be moved between a position that prevents magnetic field leakage from the transformer 3 and a position that facilitates access to the transformer 3.

Embodiment 7 FIG.
FIG. 7 is a front view of a transformer housed in an elevator control panel according to Embodiment 7 of the present invention.
As shown in FIG. 7, a ring-shaped lower frame 9 is attached to the lower end of the transformer 3. The lower frame 9 is disposed slightly outside the front and rear surfaces and the left and right side surfaces of the transformer 3. The lower frame 9 may be substantially circular or substantially rectangular as long as it can surround the front, rear, left and right of the transformer 3 in plan view. The lower frame 9 can also be formed integrally with the housing.

  The upper frame 10 is a frame having the same shape as the lower frame 9. The upper frame 10 is disposed above the lower frame 9. Both the lower frame 9 and the upper frame 10 are made of a magnetic material. A magnetic shield cover 11 is provided between the lower frame 9 and the upper frame 10. The magnetic shield cover 11 is a curtain-like member made of a magnetic material. The upper and lower ends of the magnetic shield cover 11 are connected to the upper frame 10 and the lower frame 9, respectively.

  In the control panel configured as described above, during operation of the elevator, the upper frame 10 is moved upward and the magnetic shield cover 11 is deployed. In this state, the magnetic shield cover 11 forms a magnetic loop that continuously surrounds the front, rear, left and right of the transformer 3, and the magnetic field generated by the operation of the transformer 3 leaks to the outside of the housing 2. Can be prevented.

  On the other hand, when a worker or the like accesses the transformer 3, the upper frame 10 is moved downward to fold the magnetic shield cover 11. Then, the front, rear, left and right of the transformer 3 are opened, and the worker can easily access the transformer 3.

  The magnetic shield cover 11 is preferably made of a material that can be folded and has a property that can hold the expanded state when the upper frame 10 is lifted upward. When the magnetic shield cover 11 cannot be maintained by itself when it is expanded, for example, a link mechanism or the like is additionally provided so that the magnetic shield cover 11 can be maintained in the expanded state.

  The elevator control panel configured as described above can form a magnetic shield that can more reliably prevent leakage of a magnetic field without being restricted by the shape of the housing 2. Further, it is possible to flexibly cope with restrictions imposed on the shape of the control panel 1.

Embodiment 8 FIG.
FIG. 8 is a front view of a transformer housed in an elevator control panel according to Embodiment 8 of the present invention.
As shown in FIG. 8, a lower frame 9 is attached to the lower end of the transformer 3. The lower frame 9 is disposed on the left side or the right side when viewed from the center of the transformer 3 in a front view. The transformer 3 is disposed slightly outside the front and rear surfaces and the left and right side surfaces. The lower frame 9 can also be formed integrally with the housing.

  The upper frame 10 is a frame having the same shape as the lower frame 9. The upper frame 10 is disposed above the lower frame 9. Both the lower frame 9 and the upper frame 10 are made of a magnetic material. The lower frame 9 and the upper frame 10 are connected by a shaft 12 at an end portion on the center side of the transformer 3 in a front view. A magnetic shield cover 11 is provided between the lower frame 9 and the upper frame 10. The magnetic shield cover 11 is a hood-like member made of a magnetic material. Both ends of the magnetic shield cover 11 are connected to the lower frame 9 and the upper frame 10, respectively.

  In the control panel configured as described above, when the elevator is in operation, the upper frame 10 is rotated in the direction away from the lower frame 9 around the shaft 12 to expand the magnetic shield cover 11. In this state, the magnetic shield cover 11 can prevent the magnetic field generated from the transformer 3 from leaking outside the housing 2.

  On the other hand, when an operator or the like accesses the transformer 3, the magnetic shield cover 11 is folded by rotating the upper frame 10 toward the lower frame 9 around the shaft 12. Then, the worker can easily access the transformer 3.

  The elevator control panel configured as described above can achieve the same effects as those of the seventh embodiment.

  In FIGS. 7 and 8 that are referred to when the seventh and eighth embodiments are described, the housing that houses the transformer 3 is not shown. As this housing, one having only the back surface portion described in the fourth embodiment may be used, or a box-shaped housing having an opening on the front surface as described in the first to third embodiments. Also good. When a box-shaped housing is used, the magnetic shield cover 11 is preferably arranged from the left edge to the right edge of the front opening.

  DESCRIPTION OF SYMBOLS 1 Control panel, 2 Housing | casing, 2a Front left edge part, 2b Front right edge part, 2c Rear surface part, 3 Transformer, 4 Magnetic shield sheet, 4a Slit, 5 Winding mechanism, 6 Locking part, 7 Magnetic shield body , 8 axis, 9 lower frame, 10 upper frame, 11 magnetic shield cover, 12 axis

Claims (8)

A casing made of a magnetic material, installed in a machine room or a hoistway of an elevator, having a box shape with an opening formed on the front surface, and housing a transformer included in the elevator control circuit inside the box shape When,
Magnetic shield means, comprising magnetic shielding means, arranged at least from the left edge to the right edge of the opening of the casing, and each of the left and right ends being magnetically coupled to the casing. Elevator control panel. The magnetic shield means has a sheet shape,
A winding means provided at one end of the magnetic shield means, and winding the magnetic shield means from the one end side;
2. The elevator control panel according to claim 1, further comprising: a locking unit that is provided at the other end of the magnetic shield unit and locks the other end to the housing.   The elevator control panel according to claim 2, wherein the magnetic shield means is provided with a slit. The magnetic shield means has a U-shape in plan view,
The elevator control panel according to claim 1, further comprising locking means provided at each of both ends of the magnetic shield means and locked to an inner wall of the housing. The magnetic shield means has a flat strip shape,
A shaft provided at one end of the magnetic shield means and rotatably supporting the magnetic shield means relative to the housing at the one end;
2. The elevator control panel according to claim 1, further comprising: a locking unit that is provided at the other end of the magnetic shield unit and locks the other end to the housing.   The elevator control panel according to any one of claims 2 to 5, wherein the locking means includes a magnet.   The elevator control panel according to any one of claims 1 to 6, further comprising an LED circuit provided in the magnetic shield means and driven by a voltage generated in the magnetic shield means.   The elevator control panel according to any one of claims 1 to 7, further comprising a fan circuit provided in the magnetic shield means and driven by a voltage generated in the magnetic shield means.

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