• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    BREAKER WITH SUPPORT. It is a circuit breaker that has a support, the support having terminals next to which a terminal on the side of the power supply and a terminal on the load side of a circuit breaker body are respectively connected, and configured to accommodate the circuit breaker body. , the circuit breaker includes: an upper and a lower door configured to open and close terminals of the support by moving up and down in opposite directions; and an upper link of the hatch operation having one end connected with the top hatch and the other end rotatably coupled with a pivot, and configured to operate the top hatch; a lower link for the hatch operation having one end connected to the bottom hatch and the other end rotatably coupled with the pivot, and configured to operate the bottom hatch; and a hatch safety device including a coupling unit fixedly coupled with the pivot, a rotating unit coupled rotatably with the coupling unit, and a link fixing unit provided at one end of the rotation unit, where the link fixing unit is configured (...).
    公开号:BR102012003945B1
    申请号:R102012003945-1
    申请日:2012-02-23
    公开日:2020-11-24
    发明作者:In Kyum Kim；Seung Pil Yang；Hong Ik Yang；Kil Young Ahn
    申请人:Lsis Co., Ltd；
    IPC主号:
    专利说明:

    CROSS REFERENCE WITH RELATED ORDER
    This application claims the benefit of Korean Patent Application Ne 10-2011- 0016730, filed on February 24, 2011, which is incorporated by reference in this document for all purposes as if fully disclosed herein. BACKGROUND OF THE INVENTION 1. Field of the Invention
    The present invention relates to a circuit breaker having a support, and in particular to a circuit breaker having a support equipped with a safety device to prevent internal terminals from being exposed to the outside. 2. Background to the Invention
    A circuit breaker serves to interrupt an electrical circuit when an abnormal current that has occurred in the electrical circuit is detected. For example, a vacuum circuit breaker is configured to quickly interrupt an electrical circuit by extinguishing an arc generated when the electrical circuit is opened or closed and when an abnormal current occurs. This vacuum circuit breaker is installed on a distribution board along with other devices. devices to drive a power plant, a substation, an electric motor, etc.
    When an extraction-type vacuum circuit breaker is accommodated on a distribution board, a distributor body is first accommodated on a support to be connected to a main circuit of the distribution board. When the circuit breaker body is removed from the bracket, the distributor body connected to the main circuit is disconnected from the main circuit.
    The vacuum circuit breaker has a “trigger position” to supply an electrical voltage and current as a terminal on the power supply side and a load side terminal on the circuit breaker body are connected with a terminal on the source side. supply and with a terminal on the load side of the bracket, and a “test” position to test its operation as the terminal on the power supply side and the terminal on the load side of the circuit breaker body are disconnected the terminal on the power supply side and the terminal on the load side of the bracket. FIG. 1 shows a vacuum circuit breaker support according to conventional technique. Referring to FIG. 1, the vacuum circuit breaker includes a support 1 formed in a hexahedron shape and having an accommodation space 2 to accommodate the circuit breaker body (not shown). The vacuum breaker is provided with a terminal on the side of the power supply and a terminal on the side of the load (not shown) on a rear surface thereof. Under this configuration, the circuit breaker body is inserted into the accommodation space 2, so as to be connected with a main circuit. The support 1 is provided with a door to form a closed space between the terminals of the circuit breaker body and the terminals of the support, for stable separation between them. This door has an upper door 3 and a lower door 4. Once the circuit breaker is inserted into the support for movement to a trigger position, the upper door 3 and the lower door 4 move up and down, respectively. As a result, the doors form an open space between the terminals of the circuit breaker body and the terminals of the support, for connection between them.
    A door opening / closing device 5 for opening and closing the door according to the movement of the circuit breaker body is provided in the support 1. FIG. 2 shows the door opening / closing device 5. Referring to FIG. 2, the door opening / closing device 5 includes an upper door operating link 6a for operating the upper door 3 by being connected with the upper door 3 and by being rotatably coupled with a pivot 8, and a lower link operating door 6b to operate the lower door 4 because it is connected with the lower door 4 and because it is rotatably coupled with the pivot 8. The door opening / closing device 5 is provided with door levers 7a and 7b for activate the upper door operating link 6a and the lower door operating link 6b as they are pressed when the circuit breaker body is inserted into the bracket 1. The upper door operating link 6a and the lower door operating link 6b are provided with the transmission links 9a and 9b connected with the upper door 3 and with the lower door 4, and configured to transmit operations from the upper door operating link 6a and the lower door operating link 6b to the upper door r 3 and for the lower door 4. Under this configuration, the upper door 3 and the lower door 4 are opened and closed.
    In the conventional circuit breaker, as the circuit breaker body is inserted or extracted in the holder, the door opening / closing device is activated to open and close the door. However, the door can be opened and closed by arbitrary manipulation by the user. That is, the door can be opened and closed without any safety device before the circuit breaker body is accommodated in the support, or when the circuit breaker body has been separated from the support for repair. In this case, if an electrical circuit is in an activated state, an accident may occur. SUMMARY OF THE INVENTION
    Therefore, an aspect of the detailed description is to provide a circuit breaker with a support, equipped with a door safety device and capable of preventing the door from opening even when a user erroneously operates a door closing opening device. .
    To obtain this and other advantages and in accordance with the purpose of this specification, as incorporated and widely described in this document, a circuit breaker having a support is provided, the support having terminals next to which a terminal on the side of the power supply and a terminal on the the load side of a breaker body are respectively connected, and configured to accommodate the breaker body, the breaker comprising an upper door and a lower door configured to open and close the bracket terminals by moving down and up in opposite directions ; an upper door operating link having one end connected to the upper door and the other end rotatably coupled with a pivot, and configured to operate the upper door; a lower door operating link having one end connected to the lower door and the other end rotatably coupled with the pivot, and configured to operate the lower door; and a door safety device including a coupling unit fixedly coupled with the pivot, a pivoting unit rotatably coupled with the coupling unit, and a link securing unit provided at one end of the pivot unit, where the link fixing unit is configured to restrict the rotation of the upper door operating link and the lower door operating link in a contacting manner, and to allow the rotation of the upper and lower door operating links to as the contact is released by rotating the rotation unit only when the circuit breaker body is inserted into the holder.
    The circuit breaker having a support can additionally comprise an upper door lever projecting from the upper door operating link and configured to rotate the upper door operating link; and a lower door lever projecting from the lower door operating link, and configured to rotate the lower door operating link. The upper door lever and the lower door lever can be configured to rotate the upper door operating link and the lower door operating link, respectively, by being pressed into the circuit breaker body only when the circuit breaker body is inserted into support.
    The circuit breaker having a support can additionally comprise a torsion spring provided in the pivot. When the circuit breaker body is removed from the bracket, the upper door operating link and the lower door operating link can be rotated by the torsion spring to return to the starting position. The link clamping unit can be configured to restrict the rotation of the upper door operating link and the lower door operating link in a contacting manner as the rotation unit rotates by a return spring.
    In the present disclosure, the upper and lower door operating links of a support door opening / closing device may not operate unless the circuit breaker body is inserted into the support. This can prevent the door from opening by manipulating a user. Consequently, the door operating links can serve as a safety device for the support.
    The link clamping unit may include a door operating top link clamping projection configured to clamp the door operating top link in a contacting manner, and a door clamping lower link clamping protrusion. figured to fix the lower link of door operation in a way coming into contact.
    Under configuration, the upper door and the lower door can be prevented from operating. This can accentuate the safety feature of the circuit breaker.
    The door safety device can additionally include a return spring having one end contacting the coupling unit, and the other end contacting the pivoting unit; and a guide pin coupled to one end of the coupling unit, and inserted into the return spring. The guide pin can be configured to form a return spring compression path.
    Under configuration, the door safety device can be brought back to the original state when the circuit breaker body having been inserted into the bracket is extracted from the bracket.
    The door safety device may additionally include a contact unit provided at the other end of the rotation unit. In addition, the contact unit can be configured to rotate the rotation unit by contacting a circuit breaker body guide when the circuit breaker body is inserted into the holder.
    Under configuration, the door safety device can be brought into contact with the circuit breaker body more smoothly.
    The contact unit may include a first locking hole, and the holder may include a fastening piece having a second locking hole facing the first locking hole. The door safety device can be restricted from turning by a locking device formed penetratingly into the first locking hole and the second locking hole.
    As long as an additional locking device such as a lock is provided, the door security device can be implemented in a dual way.
    The circuit breaker having a support according to the present disclosure can have the following advantages:
    First, the door operating links of the support door opening / closing devices may not operate unless the circuit breaker body is inserted into the support. This can prevent the door from opening by manipulating a user, resulting in the improvement of a circuit breaker safety feature.
    Second, an additional locking device such as a lock can be provided. This can implement the door security device in a double way.
    The scope of further applicability of this application will be made more apparent from the detailed description provided hereinafter. However, it should be understood that the detailed description and specific examples, while indicating preferred embodiments of the invention, are provided by way of illustration only, provided that various changes and modifications within the spirit and scope of the invention will become apparent to those skilled in the art. in the technique from the detailed description. BRIEF DESCRIPTION OF THE DRAWINGS
    The accompanying drawings, which are included to provide additional understanding of the invention are incorporated and form a part of this specification, illustrate illustrative embodiments and together with the description serve to explain the principles of the invention. In the drawings:
    FIGS. 1 and 2 are schematic views of a circuit breaker according to a conventional technique; FIG. 3 is a schematic view showing that a circuit breaker body is arranged in a "test" position in accordance with an embodiment of the present disclosure; FIG. 4 is a schematic view showing that the circuit breaker body is disposed just before a "trigger" position in accordance with an embodiment of the present disclosure; FIG. 5 is a schematic view of a door opening / closing device when a circuit breaker is arranged in a "test" position; FIGS. 6 and 7 are schematic views of a door security device; FIG. 8 is a schematic view showing that the door security device of FIGS. 6 and 7 is mounted next to a door opening / closing device; FIG. 9 is a schematic view showing that a door opening / closing device has been released from a door security device; and FIG. 10 is a schematic view of a door opening / closing device when a circuit breaker is arranged in a "trip" position. DETAILED DESCRIPTION OF THE INVENTION
    Now, a detailed description of illustrative embodiments will be provided, with reference to the accompanying drawings. For the purpose of a brief description with reference to the drawings, the same or equivalent components will receive the same reference numbers, and their description will not be repeated .
    FIG. 3 is a schematic view showing that a circuit breaker body is arranged in a "test" position in accordance with an embodiment of the present disclosure, and FIG. 4 is a schematic view showing that a circuit breaker body is disposed just before a "trigger" position in accordance with an embodiment of the present disclosure.
    Referring to FIGS. 3 and 4, a circuit breaker 100 according to an embodiment of the present disclosure includes a support 110 having terminals 115 next to which a terminal on the power supply side and a load side terminal 155 of a circuit breaker body 150 are connected, respectively, and configured to accommodate circuit breaker body 150 therein.
    The support 110 is provided with an upper door 121 and a lower door 122 configured to open and close the terminals 115 of the support by moving up and down in opposite directions. The upper door 121 and the lower door 122 are configured to close the space between the terminals 155 of the circuit breaker body 150 and the terminals 115 of the support 110 for separation between them. As shown in FIG. 4, since the circuit-breaker body is inserted into an accommodation space 111 of the support 110 to move to a "trigger" position, the upper door 121 and lower door 122 move up and down in directions opposite to be open so that the terminals of the circuit breaker body can be connected with the terminals of the bracket.
    A door opening / closing device 130 for opening and closing the upper door 121 and the lower door 122 is provided within the holder. The door opening / closing device 130 includes upper and lower door operating links 131 and 132, the upper and lower levers of the door 134 and 135 and a pivot 133.
    Referring to FIG. 5, the upper door operating link 131 has an end connected to the upper door 121 and the other end rotatably coupled with pivot 133, and is configured to operate the upper door 121. The lower door operating link 132 has one end connected to the bottom door 122 and the other end rotatably coupled with pivot 133, and is configured to operate the bottom door 122. The door operating links and doors can be directly connected with each other, or they can be connected via an additional link mechanism.
    Referring to FIG. 5, the upper door operating link is arranged below the lower door operating link for the following reason: As shown in FIG. 10, since the door lever is pressed as the circuit breaker body is inserted into the holder (indicated by the “A” direction), the door operating link rotates in opposite directions centered around pivot 133. Referring to FIG. 10, the upper door operating link rotates in a counterclockwise direction (“B”), and the lower door operating link rotates in a clockwise direction (“C”). Consequently, the upper door moves upwards and the lower door moves downwards, thereby opening space between the circuit breaker terminals and the support terminals for connection between the circuit breaker body terminals and the support terminals.
    The upper lever of door 134 is projecting from the upper link of door operation 131, and is configured to rotate the upper operating link of door 131. In addition, the upper lever of door 135 is projecting from of the upper door operating link 131, and is configured to rotate the lower door operating link 132. FIG. 9 shows a state in which a guide 151 provided on the side surface of the circuit breaker body comes into contact with the door opening / closing device 130 when the circuit breaker body is inserted into the holder. Referring to FIG. 9, pressure plates 152 provided in the upper and lower parts of the guide 151 press the upper lever of the door 134 and the lower lever of the door 135, respectively, in a contact way, as the circuit breaker body is inserted into the holder . Once pressed, the upper lever of door 134 and the lower lever of door 135 move to rotate the upper operating link of door 131 and the lower operating link of door 132 centered around pivot 133.
    It should be noted that the upper lever of the door 134 and the lower lever of the door 135 are pressed by the circuit breaker body only when the circuit breaker body is inserted into the holder, thereby rotating the upper door operating link and the lower operating link. door operation.
    Pivot 133 can be provided with a torsion spring (not shown). Under this configuration, when the circuit-breaker body is removed from the support, the upper door operating link 131 and the lower door operating link 132 can be rotated by the torsion spring, thus returning to the starting position.
    Referring to FIG. 5, a door safety device 140 is mounted next to the door opening / closing device 130, and is configured to prevent the bracket from being opened, unless the circuit breaker body is inserted into the bracket.
    More specifically, referring to FIGS. 6 and 7, the door security device 140 includes a coupling unit 142 fixedly coupled with pivot 133, a rotating unit 141 rotatably coupled with coupling unit 142, and a link securing unit 143 provided at one end of the rotation unit 141.
    Coupling unit 142 is attached to the door opening / closing device. More specifically, pivot 133 is fixedly inserted into coupling hole 142a of coupling unit 142. A axis of rotation 145 centered around where the rotation unit 141 rotates, is provided in the coupling unit 142. The rotation unit 141 is coupled with the rotation axis 145, and performs a relative rotation with respect to the door opening / closing device. 141 is formed in a bar format.
    Link clamping unit 143 is provided at one end of pivot unit 141. In addition, link clamping unit 143 includes a port operating upper link clamping projection 143a configured to secure the upper operating link of door in a contacting manner, and a door operating lower link securing protrusion 143b configured to secure the door operating lower link in a contacting manner.
    Referring to FIGS. 4 and 8, the upper and lower door operating link fixing projections 143a and 143b are arranged between the upper door operating link 131 and the lower door operating link 132. In this case, the circuit breaker body is arranged in a “test” position. Since the upper and lower door operating link fixing projections 143a and 143b are arranged between the upper door operating link 131 and the lower door operating link 132, the door operating links are restricted with respect to operate to prevent the door from opening.
    Referring to FIGS. 9 and 10, since the circuit breaker body moves to a “trigger” position and the circuit breaker body guide is coupled with the door opening / closing device, the rotation unit 141 is pressed by the guide 151, thus to be rotated centrally around the axis of rotation 145. In this case, the upper and lower link operating fasteners for door operation 143a and 143b rotate to be separated from the space between the upper link of operation door 131 and the link bottom door operation 132. Since the upper and lower door operating link fixing projections 143a and 143b are separated from the space between the upper door operating link 131 and the lower door operating link 132, the door operating links are operable to allow the door to be opened.
    The clamping unit 143 restricts the rotation of the upper door operating link and the lower door rotation link in a contacted manner, and allows rotation of the upper and lower door operating links as the contact is released by rotation of the rotation unit only when the circuit breaker body is inserted into the holder. The door operating links of the support door opening / closing device are not operated unless the circuit breaker body is inserted into the support. This can prevent the door from opening by manipulating a user. Accordingly, the security device of port 140 can serve as a security device for the holder.
    As shown in FIG. 7, support safety device 140 may additionally include a return spring 146 having one end contacting coupling unit 142 and the other end contacting rotation unit 141, and a guide pin 147 coupled with one end of the coupling unit 142 and inserted into the return spring 146. The guide pin 147 can be configured to form a compression path of the return spring 146.
    Under the configuration, the bracket door safety device can be brought back to the original state when the circuit breaker body has been inserted into the bracket is extracted from the bracket.
    The door safety device 140 can additionally include a contact unit 144 provided at the other end of the rotation unit 141. In addition, the contact unit 144 can be configured to rotate the rotation unit 141 by contacting a guide 151 of the circuit breaker body when the circuit breaker body is inserted into the holder. Under the configuration, the door safety device can read led to contact the circuit breaker body more smoothly.
    The contact unit 144 can include a first hole 144a, and the holder 110 can include a fixture 113 having a second locking hole 113a facing the first locking hole 144a. This configuration is shown in FIG. 8.
    Under this configuration, the door safety device can be restricted from turning by a locking device (not shown) penetratedly formed in the first locking hole 144a and the second locking hole 113a. More specifically, as long as an additional locking device such as a latch is provided, the door security device can be implemented in a dual manner.
    The foregoing embodiments and advantages are merely illustrative and are not to be construed as limiting the present disclosure. The present instructions can be readily applied to other types of apparatus. This description is intended to be illustrative, and not to limit the scope of the claims. Various alternatives, modifications and variations will be apparent to those skilled in the art. The aspects, structures, methods and other characteristics of the illustrative embodiments described in this document can be combined in several ways to obtain additional and / or alternative illustrative embodiments.
    As the present aspects can be incorporated in various forms without departing from their characteristics, it should also be understood that the embodiments described above are not limited by any detail of the preceding description, unless otherwise specified , but instead, they must be largely constructed within their scope as defined in the appended claims, and therefore, all changes and modifications that fall within the meters and limits of the vindications, or equivalents of such meters and limits, are therefore intended to be covered by the appended claims.
    权利要求:
    Claims (6)
    [0001]
    1. Circuit breaker (100) having a support (110), the support (110) having terminals (115) to which a terminal on the power supply side and a load side terminal (155) of a circuit breaker body (150 ) are respectively connected, and configured to accommodate the circuit breaker body (150), the circuit breaker (100) comprising: an upper door (121) and a lower door (122) configured to open and close the terminals (115) of the support ( 110); an upper door operating link (131) having one end connected to the upper door (121) and the other end rotatably coupled with a pivot (133), and configured to operate the upper door (121); a lower door operating link (132) having one end connected to the lower door (122) and the other end rotatably coupled with the pivot (133), and configured to operate the lower door (122); and a door safety device (140) comprising a coupling unit (142) fixedly coupled with the pivot (133), a rotation unit (141) rotatably coupled with the coupling unit (142) , and a link fixing unit (143) provided at one end of the rotation unit (141), where the link fixing unit (143) is configured to restrict the rotation of the upper door operating link (131) and the lower door operating link (132) in a contacting manner, and to allow rotation of the upper and lower door operating links (132) as the contact (143a, 143b) is released by the rotation of the rotation unit (141) when the circuit breaker body (150) is inserted into the holder, CHARACTERIZED by the fact that the door safety device (140) additionally comprises a contact unit (144) provided in another end of the rotation unit (141), and where the contact unit (143a, 143b ) is configured to rotate the rotating unit (141) by contacting a circuit breaker body guide (150) when the circuit breaker body (150) is inserted into the bracket (110).
    [0002]
    2. Circuit breaker having a support, according to claim 1, CHARACTERIZED by the fact that the link fixing unit (143) comprises: a door operating upper link fixing protrusion (131) configured to fix the upper link door operation (131) in a contacting manner; and a projection for fixing the lower door operating link (132) configured to secure the lower door operating link (132) in a contacting manner.
    [0003]
    3. Circuit breaker having a support according to claim 1, CHARACTERIZED by the fact that the door safety device (140) additionally comprises: a return spring (146) having an end contacting the control unit coupling (142), and the other end coming into contact with the rotation unit (141); and a guide pin (147) coupled with one end of the coupling unit (142), and inserted into the return spring (146), where the guide pin (147) is configured to form a compression path of the return spring .
    [0004]
    4. Circuit breaker having a support, according to claim 3, CHARACTERIZED by the fact that the contact unit (143a, 143b) comprises a first locking hole (144a), in which the support (110) comprises a fixing part (113) having a second locking hole (113a) facing the first locking hole (144a), and in which the door safety device (140) is restricted from turning by a locking device formed by penetrating shape in the first locking hole (144a) and the second locking hole (113a).
    [0005]
    5. Circuit breaker having a support according to any one of claims 1 to 4, CHARACTERIZED by the fact that it additionally comprises: an upper door lever (134) projecting from the upper door operating link (131) , and configured to rotate the upper door operating link (131); and a lower door lever (135) projecting from the lower door operating link (132), and configured to rotate the lower door operating link (132), wherein the upper door lever (134) and the lower door lever (135) are configured to rotate the upper door operating link (131) and the lower door operating link (132), respectively, as they are pressed by the circuit breaker body (150) when the circuit breaker body (150) is inserted into the bracket (110).
    [0006]
    6. Circuit breaker having a support, according to claim 3, CHARACTERIZED by the fact that it additionally comprises a torsion spring proportional to the pivot (133), in which, when the circuit breaker body (150) is extracted from the support ( 110), the upper door operating link (131) and the lower door operating link (132) are rotated by the torsion spring, and the link clamping unit (143) restricts the rotation of the upper operating link of door (131) and the lower door operating link (132) in a contacting manner as the rotation unit (141) rotates by a return spring (146).
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    同族专利:
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    法律状态:
    2014-01-21| B03A| Publication of a patent application or of a certificate of addition of invention [chapter 3.1 patent gazette]|
    2018-12-18| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-09-17| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2020-04-28| B06A| Notification to applicant to reply to the report for non-patentability or inadequacy of the application [chapter 6.1 patent gazette]|
    2020-10-13| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2020-11-24| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 23/02/2012, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    KR1020110016730A|KR101158645B1|2011-02-24|2011-02-24|A circuit braker having cradle|
    KR10-2011-0016730|2011-02-24|
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