Circuit breaker

Abstract

A circuit breaker is disclosed. The circuit breaker according to an aspect of the present invention comprises: an outer frame constituting an external shape; a moving member movably coupled to the outer frame in one direction; a rotating member rotatably coupled to the outer frame and link-fitted to the moving member so as to be rotatable by movement of the moving member; and a blowing assembly coupled to the rotating member to rotate therewith, wherein the outer frame comprises a terminal arranged to be at least partially exposed to the outside and electrically connectable to the outside, and the blowing assembly is disposed below the terminal and configured to provide a fluid for cooling toward the terminal.

Description

crossing gate

[0001] The present invention relates to a circuit breaker, and more particularly, to a circuit breaker having a structure capable of effectively cooling generated heat while preventing damage to a component provided for cooling.

[0002] A circuit breaker is a device that allows or blocks external current flow through the contact and separation of fixed and movable contacts. The fixed and movable contacts provided in the circuit breaker are each connected to an external power source or load so that current can flow through them.

[0003] The movable contact is provided in the circuit breaker so that it can move toward or away from the fixed contact. When the movable contact and the fixed contact are in contact, the circuit breaker can be connected to an external power source or load.

[0004] At this time, the fixed or movable contact is electrically connected to an external power source or load via a terminal provided in the circuit breaker. In other words, the terminal mediates the connection between the fixed or movable contact and the external power source or load. While the circuit breaker electrically connects the external power source and load, heat is generated in the terminal.

[0005] If the heat generated in the terminal is not dissipated, it will remain in the circuit breaker. If the heat remains in the circuit breaker for an extended period of time, the heat could damage the circuit breaker's components. In particular, since the terminal is made of a current-conducting material and is relatively vulnerable to heat, there is a risk of thermal damage to the terminal.

[0006] In this case, there is a risk that the electrical connection reliability between the terminal and the external power source or load may be reduced. Furthermore, the connection reliability between the terminal and the fixed or movable contact may also be reduced, potentially reducing the circuit breaker's operational reliability.

[0007] Therefore, technologies are required to quickly and effectively dissipate heat generated in circuit breakers, especially terminals.

[0008] Japanese Patent Publication No. 2023-178483 discloses a blocking device. Specifically, the device can cool an arc generated in an internal space using a cooling body positioned within the internal space. The prior art discloses that the arc is quickly cooled by the cooling body, thereby preventing damage to the internal components of the blocking device.

[0009] However, the blocking device disclosed in the above-mentioned prior art merely provides a method for cooling the heat of the arc. The above-mentioned prior art fails to provide a method for cooling a configuration in which the blocking device is electrically connected to an external power source or load.

[0010] Korean Patent Document No. 10-2599372 discloses a distribution panel equipped with a cooling unit. Specifically, the distribution panel includes a cooling unit positioned at an air outlet connecting the interior space and the exterior, thereby discharging air from the interior space to the exterior of the housing.

[0011] However, the distribution board equipped with a cooling unit disclosed in the above-mentioned prior art document only provides a method for cooling components located within the internal space. The above-mentioned prior art document does not provide a method for cooling components exposed to the outside of the housing, such as terminals.

[0012] Furthermore, the above-mentioned prior literature does not provide a method for preventing a situation in which a configuration provided for cooling is damaged by the external environment as it is exposed to the outside.

[0013] Japanese Patent Publication No. 2023-178483 (December 14, 2023)

[0014] Korean Patent No. 10-2599372 (November 2, 2023)

[0015] The present invention is intended to solve the above-mentioned problems, and an object of the present invention is to provide a circuit breaker having a structure capable of effectively cooling a configuration that is electrically connected to the outside.

[0016] Another object of the present invention is to provide a circuit breaker having a structure in which a component provided for cooling is not damaged by external factors.

[0017] Another object of the present invention is to provide a circuit breaker having a structure in which the arrangement structure of the component provided for cooling can be adjusted according to conditions during movement or installation.

[0018] Another object of the present invention is to provide a circuit breaker having a structure that can easily adjust the arrangement structure of a component provided for cooling.

[0019] Another object of the present invention is to provide a circuit breaker having a structure capable of arranging a configuration provided for cooling while minimizing structural changes to other configurations.

[0020] The tasks of the present invention are not limited to the tasks mentioned above, and other tasks not mentioned will be clearly understood by those skilled in the art to which the present invention pertains from the description below.

[0021] According to one aspect of the present invention, a circuit breaker is provided, comprising: an outer frame constituting an outer shape; a movable member movably coupled to the outer frame in one direction; a rotating member rotatably coupled to the outer frame and configured to be link-fitted with the movable member and rotatable by movement of the movable member; and a blower assembly coupled with the rotating member and rotated together, wherein the outer frame includes a terminal disposed to be at least partially exposed to the outside and electrically connected to the outside, and the blower assembly is disposed below the terminal and configured to provide a fluid for cooling toward the terminal.

[0022] At this time, the outer frame may be provided with a circuit breaker including a movable support member that protrudes in the other direction from the lower side thereof and movably supports the movable member.

[0023] In addition, a circuit breaker may be provided, wherein the movable support member includes a movable support body protruding in the other direction; and a movable through hole formed through the inside of the movable support body in the one direction and through which the movable member is movably connected.

[0024] At this time, a circuit breaker may be provided, wherein the moving member includes a moving body extending in the one direction and movably penetratingly coupled to the moving support; a gripping portion located at one end of the moving body and positioned outside the moving support along the one direction; and a cam coupling portion located at the other end of the moving body and link-coupled with the rotating member.

[0025] In addition, a circuit breaker may be provided in which the movable support part includes a movable through hole formed therein in one direction and through which the movable member is movably connected, and the grip part is formed to have a cross-sectional area larger than the movable through hole.

[0026] At this time, a circuit breaker may be provided, wherein the cam coupling portion includes a cam coupling protrusion formed protruding from one end of the moving body; and a cam coupling groove formed penetrating in the other direction inside the cam coupling protrusion and into which the rotating member is rotatably coupled.

[0027] In addition, a circuit breaker may be provided in which the cam coupling protrusion and the cam coupling groove are each formed such that their length in the height direction is longer than their length in the width direction.

[0028] At this time, the circuit breaker may be provided with the outer frame including a rotation support portion that protrudes in the one direction from the lower side thereof and rotatably supports the rotation member.

[0029] In addition, a circuit breaker may be provided in which the rotation support part includes a rotation support body protruding in one direction; and a rotation through-hole formed through the inside of the rotation support body in the other direction and through which the rotation member is rotatably connected.

[0030] At this time, a circuit breaker may be provided, wherein the rotating member includes a rotating body extending in the other direction and rotatably coupled to the rotating support; and a cam coupling portion positioned at one end of the rotating body and link-coupled with the moving member.

[0031] In addition, a circuit breaker may be provided, wherein the cam coupling portion includes a cam rod extending in the other direction and penetratingly coupled to the moving member; a cam body coupled to one side of the cam rod along the other direction and covering the rotation support portion from the outside in the other direction; and a cam support portion coupled to the other side of the cam rod along the other direction and positioned to face the cam body with the cam rod interposed therebetween.

[0032] At this time, the cam rod may be provided with a circuit breaker that is eccentrically positioned with respect to the center of the cross-section of the cam body.

[0033] In addition, the blower assembly may be provided with a circuit breaker including a blower member positioned below the terminal and configured to provide the fluid toward the terminal; a blower support body supporting the blower member and extending in the other direction; and a rotation member coupling member positioned on one side of the blower support body and coupled with the rotation member.

[0034] At this time, a circuit breaker may be provided in which the rotating member includes a rotating body extending in the other direction and having a portion of its outer circumference formed as a plane, and the rotating member coupling member includes a rotating member receiving portion formed penetrating therein in the other direction and into which the rotating body is penetratingly coupled.

[0035] In addition, a circuit breaker may be provided in which the rotating member coupling member includes a first rotating inner surface formed as a rounded surface that surrounds the rotating member receiving portion on one radial side and is convexly outwardly formed; and a second rotating inner surface formed as a plane that surrounds the rotating member receiving portion on the other radial side and corresponds to a portion of the outer periphery of the rotating body and is in contact with the portion.

[0036] According to the above configuration, the circuit breaker according to the embodiment of the present invention can effectively cool a configuration that is electrically connected to the outside.

[0037] In addition, according to the above configuration, the circuit breaker according to the embodiment of the present invention may not have a configuration provided for cooling damaged by external factors.

[0038] In addition, according to the above configuration, the circuit breaker according to the embodiment of the present invention can have its arrangement structure adjusted according to conditions when moving or installing the configuration provided for cooling.

[0039] In addition, according to the above configuration, the circuit breaker according to the embodiment of the present invention can easily adjust the arrangement structure of the configuration provided for cooling.

[0040] In addition, according to the above configuration, the circuit breaker according to the embodiment of the present invention can be configured to provide cooling while minimizing structural changes to other configurations.

[0041] The effects of the present invention are not limited to the effects described above, and should be understood to include all effects that can be inferred from the detailed description of the present invention or the composition of the invention described in the claims.

[0042] Figures 1 and 2 are perspective views illustrating a circuit breaker according to an embodiment of the present invention.

[0043] Figure 3 is an exploded perspective view showing the configuration of the circuit breaker of Figures 1 and 2.

[0044] FIG. 4 is a perspective view and a partially enlarged perspective view showing an external frame provided in the circuit breaker of FIGS. 1 and 2.

[0045] FIG. 5 is a perspective view showing a moving member, a rotating member, and a blower assembly provided in the circuit breaker of FIGS. 1 and 2.

[0046] Figure 6 is a perspective view illustrating the movable member of Figure 5.

[0047] Figure 7 is a side view and a partially enlarged view showing the moving member of Figure 5.

[0048] Figures 8 and 9 are perspective views illustrating the rotating member of Figure 5.

[0049] Fig. 10 is a side view showing the rotating member of Figs. 8 and 9.

[0050] Fig. 11 is a cross-sectional view taken along line AA showing the rotating member of Figs. 8 and 9.

[0051] Figure 12 is a perspective view illustrating the blower assembly of Figure 5.

[0052] Figure 13 is a side view illustrating the blower assembly of Figure 12.

[0053] FIGS. 14 and 15 are perspective views and BB cross-sectional views showing a state in which a circuit breaker according to an embodiment of the present invention is operated in a first state.

[0054] Figures 16 and 17 are perspective views and CC cross-sectional views showing a state in which a circuit breaker according to an embodiment of the present invention is operated in a second state.

[0055] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings so that those skilled in the art can easily practice the present invention. The present invention may be implemented in various different forms and is not limited to the embodiments described herein. To clearly explain the present invention, parts irrelevant to the description are omitted in the drawings, and the same reference numerals designate identical or similar components throughout the specification.

[0056] The words and terms used in this specification and claims should not be construed as limited to their ordinary or dictionary meanings, but should be interpreted in a way that is consistent with the technical idea of ​​the present invention, in accordance with the principles by which the inventor can define terms and concepts in order to best explain his or her invention.

[0057] Therefore, the embodiments described in this specification and the configurations illustrated in the drawings correspond to a preferred embodiment of the present invention, and do not represent all of the technical ideas of the present invention, so there may be various equivalents and modified examples that can replace the configuration at the time of filing of the present invention.

[0058] In the following description, descriptions of some components may be omitted to clarify the features of the present invention.

[0059] The term "fluid communication" as used herein refers to one or more elements being fluidly connected to one another. In one embodiment, the fluid communication may be formed by elements such as conduits, pipes, or piping. In the following description, the fluid communication may be used in the same sense as one or more elements being "fluidly connected" to one another.

[0060] The term "conduction" as used herein refers to the connection of one or more elements to enable the transmission of current or electrical signals. In one embodiment, the conduction may be formed in a wired form, such as by a conductor element, or in a wireless form, such as Bluetooth, Wi-Fi, or RFID. In one embodiment, the conduction may also include the meaning of "communication."

[0061] The term "fluid" used in the following description refers to any form of material that can flow and change shape or volume, etc., due to an external force. In one embodiment, the fluid may be a liquid such as water or a gas such as air.

[0062] The terms “upper side,” “lower side,” “left side,” “right side,” “front side,” and “rear side” used in the following description are to be understood with reference to the coordinate system depicted throughout the attached drawings.

[0063]

[0064] Referring to FIGS. 1 to 3, a circuit breaker (10) according to an embodiment of the present invention is illustrated. The circuit breaker (10) may be provided in any form capable of connecting or disconnecting an external power source and load by contact and separation between a fixed contact (not shown) and a movable contact (not shown).

[0065] In one embodiment, the circuit breaker (10) may be equipped with an air circuit breaker. As is known, an air circuit breaker refers to a circuit breaker in which the contact and separation processes of a fixed contact (not shown) and a movable contact (not shown) are performed in air. However, the circuit breaker (10) according to the embodiment of the present invention described below may be equipped with and utilized in any type of circuit breaker as long as its technical characteristics are maintained.

[0066] The circuit breaker (10) is electrically connected to an external power source (not shown) and a load (not shown), respectively. Inside the circuit breaker (10), fixed contacts (not shown) and movable contacts (not shown) are provided so as to be electrically contactable and spaced apart from each other.

[0067] When the fixed contact (not shown) and the movable contact (not shown) are in contact with each other, an external power source (not shown) and a load (not shown) can be electrically connected to each other. When the fixed contact (not shown) and the movable contact (not shown) are separated from each other, the external power source (not shown) and the load (not shown) can be electrically disconnected from each other.

[0068] In an embodiment in which a circuit breaker (10) according to an embodiment of the present invention is provided as an air circuit breaker, the circuit breaker (10) may be configured to include a cradle and a circuit breaker body. The cradle may include a configuration electrically connected to one of an external power source (not shown) and a load (not shown), and the circuit breaker body may include a configuration electrically connected to the other of the external power source (not shown) and the load (not shown).

[0069] A predetermined space is formed inside the cradle, into which the circuit breaker body can be inserted or withdrawn. When the circuit breaker body is inserted into the space of the cradle, the above-described configuration of the cradle and the above-described configuration of the circuit breaker body can be electrically connected to each other.

[0070] At this time, the circuit breaker (10) according to the embodiment of the present invention can effectively cool the configuration that is exposed to the outside of the cradle and electrically connected to the outside. At the same time, the circuit breaker (10) according to the embodiment of the present invention has a configuration structure that is provided for cooling and can be easily changed depending on the state of the circuit breaker (10), thereby preventing damage from the outside.

[0071] In the illustrated embodiment, the circuit breaker (10) includes an outer frame (100), a movable member (200), a rotating member (300), and a blower assembly (400).

[0072] The outer frame (100) constitutes the outer shape of the circuit breaker (10). The outer frame (100) movably supports another component of the circuit breaker (10), namely the movable member (200). In addition, the outer frame (100) rotatably supports another component of the circuit breaker (10), namely the rotating member (300) and the blower assembly (400).

[0073] A space is formed within the outer frame (100). A component (not shown) corresponding to the circuit breaker body described above can be inserted or removed into the space. The component can be electrically connected to the outer frame (100) and energized. In other words, the outer frame (100) functions as the cradle or housing described above.

[0074] The external frame (100) is electrically connected to an external power source (not shown) or load (not shown). The external frame (100) can be electrically connected to an external power source (not shown) or load (not shown) at multiple points.

[0075] In the embodiment illustrated in FIG. 4, the outer frame (100) includes a frame body (110), a terminal (120), a rotation support (130), and a movable support (140).

[0076] The frame body (110) constitutes the body of the outer frame (100). The frame body (110) constitutes the outer shape of the outer frame (100). The frame body (110) is coupled to or supports other components of the outer frame (100). In the illustrated embodiment, the frame body (110) is coupled to and supports the terminal (120). In addition, a rotational support member (130) and a movable support member (140) are formed on the frame body (110).

[0077] A space is formed inside the frame body (110). A circuit breaker body (not shown) can be retractably accommodated in the space. The outer frame (100) can be electrically connected to the circuit breaker body (not shown) inserted into the space.

[0078] The frame body (110) can be configured to receive a circuit breaker body (not shown) in a retractable manner and can be of any shape capable of being combined with or supporting other components of the external frame (100). In the illustrated embodiment, the frame body (110) has a rectangular column shape having a length in the front-back direction, a width in the left-right direction, and a height in the up-down direction.

[0079] A terminal (120) is connected to the frame body (110).

[0080] The terminal (120) is configured to electrically connect the external frame (100) to an external power source (not shown) or load (not shown). The terminal (120) is coupled to the frame body (110) and is at least partially exposed to the outside of the frame body (110). The external power source (not shown) or load (not shown) can be electrically coupled to a portion of the terminal (120) exposed to the outside of the frame body (110).

[0081] Another part of the terminal (120) may be exposed to a space formed inside the frame body (110). The other part of the terminal (120) may be electrically coupled to a circuit breaker body (not shown) inserted into the space of the frame body (110). Accordingly, an external power source (not shown) or load (not shown), an external frame (100), and a circuit breaker body (not shown) may be electrically connected to each other.

[0082] The terminal (120) may be positioned at any location that is at least partially exposed on the outside of the frame body (110) and can be electrically connected to an external power source (not shown) or load (not shown). In the illustrated embodiment, the terminal (120) is positioned on the front side of the frame body (110).

[0083] As the terminal (120) is electrically connected to an external power source (not shown) or load (not shown) and a circuit breaker body (not shown), a large amount of heat is generated in the terminal (120). If the heat is left unattended, other components of the terminal (120) and the circuit breaker (10) may be damaged by the heat, which may lower the operational reliability of the circuit breaker (10).

[0084] Accordingly, the circuit breaker (10) according to an embodiment of the present invention includes a separate component, i.e., a blower assembly (400), for effectively cooling the heat generated at the terminal (120). The blower assembly (400) blows air to the terminal (120), thereby discharging the heat generated at the terminal (120) to the outside and simultaneously cooling the terminal (120).

[0085] For this purpose, a blower assembly (400) may be positioned adjacent to the terminal (120). As will be described later, the blower assembly (400) is rotatably supported by a rotating member (300). Therefore, it can be said that the terminal (120) is positioned adjacent to the blower assembly (400) and the rotating member (300).

[0086] The terminal (120) may be formed of a material having high electrical conductivity and rigidity. In one embodiment, the terminal (120) may be formed of copper (Cu) or an alloy material containing copper (Cu).

[0087] A plurality of terminals (120) may be provided. The plurality of terminals (120) may be spaced apart from each other along the width direction or height direction of the frame body (110).

[0088] In the illustrated embodiment, the terminal (120) includes a first terminal (121), a second terminal (122), and a third terminal (123). The above configuration is due to the fact that three-phase current is applied to the circuit breaker (10) according to the embodiment of the present invention. The number of terminals (120) may vary depending on the type of phase of the current applied to the circuit breaker (10).

[0089] The first terminal (121) constitutes a portion of a plurality of terminals (120). A plurality of first terminals (121) are provided, and are positioned offset to one side in the width direction of the frame body (110). In the illustrated embodiment, the first terminals (121) are provided as a pair spaced apart from each other in the vertical direction, and are positioned offset to the left side of the front of the frame body (110).

[0090] The second terminal (122) constitutes another part of the plurality of terminals (120). The second terminals (122) are provided in plurality and are located in the middle part in the width direction of the frame body (110). In the illustrated embodiment, the second terminals (122) are provided in pairs spaced apart from each other in the vertical direction and are located in the center part in the left and right directions of the front of the frame body (110).

[0091] The third terminal (123) constitutes the remaining portion of the plurality of terminals (120). The third terminals (123) are provided in plurality and are positioned offset from each other in the width direction of the frame body (110). In the illustrated embodiment, the third terminals (123) are provided in pairs spaced apart from each other in the vertical direction and are positioned offset from the front right side of the frame body (110).

[0092] In the above embodiment, the first terminal (121) and the third terminal (123) are arranged to face each other with the second terminal (122) interposed along the width direction, i.e., the left-right direction, of the frame body (110). The first to third terminals (121, 122, 123) are arranged to be spaced apart from each other along the width direction, i.e., the left-right direction, so that current flow between them can be blocked.

[0093] Meanwhile, the first to third terminals (121, 122, 123) can be cooled by a plurality of blower members (430) provided in the blower assembly (400), respectively. To this end, the first to third terminals (121, 122, 123) are positioned on one side of the plurality of blower members (430) in the height direction, i.e., on the upper side in the illustrated embodiment.

[0094] Accordingly, each of the plurality of terminals (121, 122, 123) can be cooled by air blown by the plurality of blower members (430).

[0095] The rotary support (130) is a portion where the rotary member (300) to which the blower assembly (400) is coupled is coupled to the external frame (100). The rotary support (130) rotatably supports the rotary member (300) and the blower assembly (400) coupled thereto.

[0096] The rotation support member (130) is coupled with the frame body (110). The rotation support member (130) is exposed to the outside of the frame body (110) and can be coupled with the rotation member (300) located on the outside of the frame body (110). In the illustrated embodiment, the rotation support member (130) is located on the lower side of the front of the frame body (110). In other words, the rotation support member (130) is located on the lower side of the terminal (120).

[0097] A plurality of rotational supports (130) may be formed. The plurality of rotational supports (130) are spaced apart from each other so as to rotatably support the rotational member (300) and the blower assembly (400) coupled thereto at different positions. In the illustrated embodiment, the rotational support (130) includes a first rotational support (130a) and a second rotational support (130b).

[0098] The first rotation support member (130a) is located on one side of the frame body (110) in the width direction, at the left end in the illustrated embodiment. The second rotation support member (130b) is located on the other side of the frame body (110) in the width direction, at the right end in the illustrated embodiment.

[0099] The first rotation support member (130a) is positioned adjacent to the anti-separation member (320) of the rotation member (300). The second rotation support member (130b) is positioned adjacent to the cam member (330) of the rotation member (300). The first and second rotation supports (130a, 130b) are positioned facing each other with the rotation member (300) and the blower assembly (400) coupled thereto interposed therebetween.

[0100] In the illustrated embodiment, the rotation support (130) includes a rotation support body (131) and a rotation through hole (132).

[0101] The rotation support body (131) constitutes the outer shape of the rotation support member (130). The rotation support body (131) is a portion where the rotation support member (130) is coupled to the frame body (110). The rotation support body (131) rotatably supports the rotation body (310) that is penetrated by the rotation through hole (132).

[0102] The rotation support body (131) is formed to protrude outwardly from the frame body (110). In the illustrated embodiment, the rotation support body (131) is formed to protrude toward one side in the longitudinal direction of the frame body (110), i.e., the front side.

[0103] The rotation support body (131) is continuous with the frame body (110) and has a rotation through hole (132) formed therein, and can be of any shape capable of rotatably supporting the rotation body (310). In the illustrated embodiment, the rotation support body (131) is provided in the shape of a plate having a length in the front-back direction, a height in the up-down direction, and a width in the left-right direction.

[0104] The rotation through hole (132) is a portion where the rotation support member (130) is coupled to the rotation member (300). The rotation through hole (132) is formed inside the rotation support body (131). The rotation through hole (132) is formed to penetrate in the thickness direction of the rotation support body (131), i.e., in the left-right direction in the illustrated embodiment. The rotation through hole (132) is defined by being surrounded by the inner circumference of the rotation support body (131).

[0105] A rotating body (310) is connected to the rotating through hole (132) by penetration. The rotating through hole (132) can rotatably accommodate the rotating body (310). The rotating body (310) penetrated through the rotating through hole (132) can be rotatably supported by the inner circumference of the rotating support body (131) surrounding the rotating through hole (132).

[0106] The rotational through hole (132) may have any shape that can rotatably support the rotational body (310). In the illustrated embodiment, the rotational through hole (132) is formed as a space in the shape of a disk having a circular cross-section and a thickness in the left-right direction.

[0107] In the above embodiment, the diameter of the cross-section of the rotating through hole (132) may be greater than or equal to the diameter of the cross-section of the rotating body (310). In addition, the diameter of the cross-section of the rotating through hole (132) may be less than the diameter of the cross-section of the anti-separation member (320) or the cam body (331).

[0108] Accordingly, the random detachment of the rotating body (310) penetrated through the rotating through hole (132) can be prevented.

[0109] The movable support member (140) is a portion where the movable member (200) is connected to the external frame (100). The movable support member (140) supports the movable member (200) so that it can move in its longitudinal direction, and in the illustrated embodiment, in the forward and backward direction.

[0110] The movable support member (140) is coupled with the frame body (110). The movable support member (140) is exposed to the outside of the frame body (110) and can be coupled with the movable member (200) located on the outside of the frame body (110). In the illustrated embodiment, the movable support member (140) is located on one side in the width direction of the rear of the frame body (110), i.e., on the lower right side. Alternatively, the movable support member (140) can be located on the other side in the width direction, i.e., on the left side of the rear, which can movably support the movable member (200).

[0111] In the illustrated embodiment, the moving support member (140) includes a moving support body (141) and a moving through hole (142).

[0112] The movable support body (141) constitutes the outer shape of the movable support part (140). The movable support body (141) is a part where the movable support part (140) is connected to the frame body (110). The movable support body (141) movably supports the movable body (210) that is penetrated by the movable through hole (142).

[0113] The movable support body (141) is formed to protrude outwardly from the frame body (110). In the illustrated embodiment, the movable support body (141) is formed to protrude to one side in the width direction of the frame body (110), i.e., to the right.

[0114] The movable support body (141) is continuous with the frame body (110) and may have any shape that can movably support the movable body (210) by forming a movable through hole (142) therein. In the illustrated embodiment, the movable support body (141) is provided in the shape of a plate having a height in the vertical direction, a width in the left-right direction, and a thickness in the front-back direction.

[0115] The movable through hole (142) is a portion where the movable support member (140) is connected to the movable member (200). The movable through hole (142) is formed inside the movable support body (141). The movable through hole (142) is formed to penetrate in the thickness direction of the movable support body (141), in the front-back direction in the illustrated embodiment. The movable through hole (142) is defined by being surrounded by the inner circumference of the movable support body (141).

[0116] A movable body (210) is connected to the movable through hole (142). The movable through hole (142) can movably accommodate the movable body (210). The movable body (210) penetrated through the movable through hole (142) can be rotatably supported by the inner circumference of the movable support body (141) surrounding the movable through hole (142).

[0117] The movable through hole (142) may have any shape capable of movably supporting the movable body (210). In the illustrated embodiment, the movable through hole (142) is formed as a polygonal plate-shaped space in which the height in the vertical direction is longer than the width in the left-right direction and the thickness in the front-back direction.

[0118] In the above embodiment, the height of the moving through hole (142) may be formed to be greater than the height of the moving body (210). At the same time, the height of the moving through hole (142) may be formed to be less than the height of the grip protrusion (231). In addition, the width of the moving through hole (142) may be formed to be greater than the width of the moving body (210).

[0119] Accordingly, the arbitrary detachment of the movable member (200) penetrating the movable penetration hole (142) can be prevented.

[0120] Referring to FIG. 5, a circuit breaker (10) according to an embodiment of the present invention includes a moving member (200), a rotating member (300), and a blower assembly (400).

[0121] The movable member (200) and the rotating member (300) are each coupled to the external frame (100). The movable member (200) can move in its longitudinal direction, or in the forward and backward direction in the illustrated embodiment, with respect to the external frame (100).

[0122] The rotating member (300) is rotatably coupled to the outer frame (100). The rotating member (300) can be rotated clockwise or counterclockwise with respect to the outer frame (100). At this time, the longitudinal movement of the movable member (200) can be converted into the rotation of the rotating member (300).

[0123] Therefore, it can be said that the moving member (200) and the rotating member (300) are linked to each other.

[0124] Additionally, the rotating member (300) is coupled with the blower assembly (400). The blower assembly (400) can be rotated together with the rotating member (300). Consequently, the longitudinal movement of the movable member (200) can be converted into rotation of the rotating member (300) and the blower assembly (400) coupled thereto.

[0125] In the embodiment shown in FIGS. 6 and 7, the moving member (200) includes a moving body (210), a cam coupling portion (220), and a grip portion (230).

[0126] The moving body (210) constitutes the body of the moving member (200). The moving body (210) is continuous with other components of the moving member (200), namely the cam coupling portion (220) and the grip portion (230), respectively. An external force applied to the grip portion (230) can be transmitted to the cam coupling portion (220) by the moving body (210).

[0127] The moving body (210) is coupled to the external frame (100). Specifically, the moving body (210) is movably penetrated by the moving through hole (142) of the moving support member (140). The moving body (210) can be supported by the inner circumference of the moving support body (141) surrounding the moving through hole (142).

[0128] The moving body (210) extends between the cam coupling portion (220) and the grip portion (230). The moving body (210) extends in the longitudinal direction of the frame body (110), in the front-rear direction in the illustrated embodiment.

[0129] The moving body (210) is movably connected to the moving through hole (142) and supported longitudinally by the moving support body (141), and may have any shape that can be continuous with the cam coupling portion (220) and the grip portion (230). In the illustrated embodiment, the moving body (210) is formed in the shape of a bar whose width in the left-right direction is shorter than its height in the up-down direction and whose length in the front-back direction is longer.

[0130] In the above embodiment, the width of the moving body (210) in the left-right direction may be less than or equal to the width of the moving through hole (142) in the left-right direction. In addition, the height of the moving body (210) in the vertical direction may be less than or equal to the height of the moving through hole (142) in the vertical direction.

[0131] Accordingly, the moving body (210) can be easily moved in the longitudinal direction while being penetrated by the moving through hole (142). At the same time, the moving body (210) can be moved a predetermined distance along the height direction of the moving through hole (142), i.e., the up-down direction. Accordingly, the cam coupling part (220) coupled with the moving body (210) can be raised and lowered a predetermined distance by rotating the rotating member (300).

[0132] The cam coupling portion (220) is a portion where the movable member (200) is coupled to the rotary member (300). The cam coupling portion (220) is rotatably coupled to the rotary member (300). In other words, the longitudinal movement of the cam coupling portion (220) can be converted into the rotation of the rotary member (300). Therefore, the cam coupling portion (220) can be said to be a configuration where the movable member (200) is linked to the rotary member (300).

[0133] The cam coupling portion (220) is continuous with the moving body (210). The cam coupling portion (220) is located at one longitudinal end of the moving body (210), in the illustrated embodiment, at the front end. The cam coupling portion (220) may be positioned opposite the moving support portion (140) and adjacent to the second rotation support portion (130b). The cam coupling portion (220) may be arranged to cover the rotation support body (131) of the second rotation support portion (130b) from the outside.

[0134] The cam coupling part (220) is coupled with the rotating member (300). Specifically, the cam coupling part (220) is rotatably coupled with the cam member (330) of the rotating member (300). The movement of the cam coupling part (220) can be converted into the rotation of the cam member (330) and the rotating body (310) coupled thereto.

[0135] Accordingly, it will be understood that one side in the longitudinal direction of the moving body (210) is supported by the moving support member (140), and the other side in the longitudinal direction is supported by the cam member (330).

[0136] In the illustrated embodiment, the cam coupling portion (220) includes a cam coupling protrusion (221) and a cam coupling groove (222).

[0137] The cam coupling protrusion (221) constitutes the outer shape of the cam coupling portion (220). The cam coupling protrusion (221) is a portion where the cam coupling portion (220) is coupled to the cam member (330). The cam coupling protrusion (221) rotatably supports the cam member (330).

[0138] The cam coupling protrusion (221) is formed to protrude in the longitudinal direction of the moving body (210). In the illustrated embodiment, the cam coupling protrusion (221) is formed to protrude toward one side of the longitudinal direction of the moving body (210), i.e., the front side.

[0139] The cam coupling protrusion (221) may be any shape that is continuous with the moving body (210) and has a cam coupling groove (222) formed therein to rotatably support the cam member (330). In the illustrated embodiment, the cam coupling protrusion (221) is provided in the shape of a plate having a length in the vertical direction and a width in the front-back direction, and a thickness in the left-right direction, and having an oblong cross-section in which each end in the height direction is formed to be rounded so as to be convex outward.

[0140] At this time, the shape of the cross-section of the cam coupling protrusion (221) can be formed such that the height in the vertical direction is longer than the length in the front-back direction.

[0141] The cam engagement groove (222) is a portion where the cam engagement portion (220) engages with the cam rod (332). The cam engagement groove (222) is formed inside the cam engagement protrusion (221). The cam engagement groove (222) is formed to penetrate in the thickness direction of the cam engagement protrusion (221), i.e., in the left-right direction in the illustrated embodiment. The cam engagement groove (222) is defined by being surrounded by the inner circumference of the cam engagement protrusion (221).

[0142] A cam rod (332) provided on a cam member (330) is penetratedly connected to the cam coupling groove (222). The cam coupling groove (222) can movably accommodate the cam rod (332). The cam rod (332) connected to the cam coupling groove (222) can move along the cam coupling groove (222).

[0143] The cam coupling groove (222) may have any shape capable of movably supporting the cam rod (332). In the illustrated embodiment, the cam coupling groove (222) is formed as a plate-shaped space having a rectangular cross-section in which the height in the vertical direction is longer than the width in the front-back direction and the thickness in the left-right direction.

[0144] In the above embodiment, the width of the cam engaging groove (222) may be formed to be less than the diameter of the cross-section of the cam body (331) or the cam support (333). At the same time, the width of the cam engaging groove (222) may be formed to be greater than the diameter of the cross-section of the cam rod (332).

[0145] Accordingly, arbitrary detachment of the cam member (330) penetrating the cam coupling groove (222) can be prevented.

[0146] The gripping portion (230) is a portion where an external force is applied to the moving member (200). The gripping portion (230) is exposed to the outside of the external frame (100) and can receive a linear force applied thereto by a user or any device. The gripping portion (230) is continuous with the moving body (210), and the applied force can be transmitted to the cam coupling portion (220).

[0147] The gripping portion (230) is continuous with the moving body (210). The gripping portion (230) is located at the other longitudinal end of the moving body (210), in the illustrated embodiment, at the rear end. The gripping portion (230) may be positioned opposite the second rotating support portion (130b) and adjacent to the moving support portion (140).

[0148] The gripping part (230) is located on the outer side of the moving support part (140), in the illustrated embodiment, on the rear side. The gripping part (230) is positioned facing the moving body (210) with the moving support part (140) interposed therebetween.

[0149] In the illustrated embodiment, the grip portion (230) includes a grip protrusion (231), a limiting projection (232), and a grip groove (233).

[0150] The grip protrusion (231) constitutes the outer shape of the grip portion (230). The grip protrusion (231) is a portion where the grip portion (230) is exposed to the outside of the moving support portion (140).

[0151] The grip protrusion (231) is formed to protrude in the longitudinal direction of the moving body (210). In the illustrated embodiment, the grip protrusion (231) is formed to protrude toward the other side of the longitudinal direction of the moving body (210), i.e., the rear side.

[0152] The grip protrusion (231) may be continuous with the moving body (210) and may have any shape in which a grip groove (233) may be formed inside. In the illustrated embodiment, the grip protrusion (231) is formed in a plate shape with a cross-section having a length in the front-back direction, a height in the up-down direction, and a thickness in the left-right direction, but in which the rear end is formed to be rounded outward.

[0153] At this time, the vertical height of the grip protrusion (231) may exceed the vertical height of the moving through hole (142). Therefore, the grip protrusion (231) is not drawn into the moving through hole (142), so that the grip portion (230) may remain exposed to the outside of the external frame (100).

[0154] A portion of the outer circumference of the phage protrusion (231) can be defined as a limiting protrusion (232).

[0155] The limiting protrusion (232) is defined as a portion of the outer circumference of the gripping protrusion (231), thereby preventing the gripping protrusion (231) from being drawn into the moving through hole (142). That is, by the limiting protrusion (232), the height or width of the gripping protrusion (231) may be formed to exceed the height or width of the moving through hole (142).

[0156] The limiting protrusion (232) can be formed at any position that can increase the height or width of the gripping protrusion (231). In the illustrated embodiment, the limiting protrusion (232) constitutes the upper end of the front side of the gripping protrusion (231). When the moving member (200) moves forward, the limiting protrusion (232) comes into contact with the moving support body (141), thereby preventing the gripping protrusion (231) from penetrating the moving through hole (142).

[0157] The grip groove (233) can be used to attach a body part of a worker or any device. The grip groove (233) is formed inside the grip projection (231). The grip groove (233) is formed to penetrate the grip projection (231) in the thickness direction, i.e., in the left-right direction in the illustrated embodiment. The grip groove (233) is defined by being surrounded by the inner circumference of the grip projection (231).

[0158] The phage groove (233) may be of any shape to which a body part of a worker or any device can be coupled. In the illustrated embodiment, the phage groove (233) is formed as a disk-shaped space having a circular cross-section and a thickness in the left-right direction.

[0159] The longitudinal movement of the movable member (200) is converted into the rotation of the rotating member (300).

[0160] The rotating member (300) is coupled to the movable member (200) and rotates by the longitudinal movement of the movable member (200). The rotating member (300) is coupled to the blower assembly (400) and can rotate together. The rotating member (300) is rotatably coupled to the external frame (100), and by the rotation, the blower assembly (400) can also rotate with respect to the external frame (100).

[0161] In the embodiments illustrated in FIGS. 8 to 11, the rotating member (300) includes a rotating body (310), a separation prevention member (320), and a cam member (330).

[0162] The rotating body (310) constitutes the body of the rotating member (300). The rotating body (310) is coupled with other components of the rotating member (300), namely, the anti-separation member (320) and the cam member (330), respectively. The rotational force converted by the cam member (330) can be transmitted to the rotating body (310) and the anti-separation member (320).

[0163] The rotating body (310) is coupled to the outer frame (100). Specifically, the rotating body (310) is rotatably connected to the rotating support member (130) through a penetration. As described above, the rotating support members (130) are provided in multiple numbers and spaced apart from each other in the width direction of the frame body (110), i.e., in the left-right direction in the illustrated embodiment. The rotating body (310) is rotatably connected to each of the multiple rotating support members (130) through a penetration. The rotating body (310) is rotatably supported by the multiple rotating support members (130).

[0164] Specifically, the rotating body (310) is connected to the rotating through hole (132) and is rotatably supported by the inner circumference of the rotating support body (131).

[0165] The rotating body (310) extends between the anti-separation member (320) and the cam member (330). The rotating body (310) extends in the width direction of the frame body (110), in the left-right direction in the illustrated embodiment.

[0166] The rotating body (310) is coupled to the blower assembly (400). Specifically, the rotating body (310) is penetrably coupled to the rotating member receiving portion (423) provided in the blower assembly (400).

[0167] The rotating body (310) is at least partially exposed to the outside of the rotating member receiving portion (423) and can be coupled to the rotating support portion (130). In the illustrated embodiment, each end of the rotating body (310) in the longitudinal direction, i.e., the left and right ends, is exposed to the outside of the rotating member receiving portion (423) and is rotatably coupled to the rotating through hole (132).

[0168] The rotating body (310) is rotatably supported by the rotating support member (130), is coupled with the blower assembly (400) and rotates together, and may have any shape that can be continuous with other configurations of the rotating member (300). In the illustrated embodiment, the rotating body (310) has a cross-section that is generally circular but has one side that is straight, and is shaped like a rod having a length in the left-right direction.

[0169] In the above embodiment, the shape of the cross-section of the rotating body (310) may be the same as the shape of the cross-section of the rotating member receiving portion (423). Accordingly, the rotating body (310) can be rotated together with the blower assembly (400).

[0170] At this time, the cross-sectional area of ​​the rotating body (310) is formed to be less than or equal to the cross-sectional area of ​​the rotating through hole (132), but may be less than the cross-sectional area of ​​the detachment prevention member (320) or the cam member (330).

[0171] In the illustrated embodiment, the rotating body (310) includes a first rotating outer surface (311) and a second rotating outer surface (312).

[0172] The first rotational outer surface (311) constitutes a portion of the outer surface of the rotating body (310). In the illustrated embodiment, the first rotational outer surface (311) constitutes the outer surface of the remaining portion excluding the front side.

[0173] The first rotation outer surface (311) may have a shape corresponding to the shape of the rotation through hole (132). In the illustrated embodiment, the first rotation outer surface (311) is formed as a curved surface having an arc-shaped cross-section.

[0174] The second rotational outer surface (312) constitutes another portion of the outer surface of the rotating body (310). In the illustrated embodiment, the second rotational outer surface (312) constitutes the front-side outer surface.

[0175] The second rotation outer surface (312) may have a different shape from the shape of the rotation through hole (132). In the illustrated embodiment, the second rotation outer surface (312) is formed as a plane having a height in the vertical direction and a length in the left-right direction.

[0176] The second rotation outer surface (312) can be in contact with the second rotation inner surface (422) of the rotation member connecting member (420) to support the blower assembly (400). Accordingly, the phenomenon of the rotation member (300) connecting with the blower assembly (400) being lost can be prevented.

[0177] The first rotational outer surface (311) can be extended by an angle corresponding to the angle at which the rotational member (300) is to be rotated. That is, as will be described later, the blower assembly (400) can be rotated between a first state (S1) that is a folded state and a second state (S2) that is an unfolded state. At this time, the first rotational outer surface (311) can be formed so as to be in contact with the inner surface of the rotational support member (130) between the first state (S1) and the second state (S2).

[0178] At the same time, the second rotational outer surface (312) is positioned so as not to come into contact with the inner surface of the rotational support (130) even when the rotational member (300) rotates. Therefore, even when the second rotational outer surface (312) is formed as a plane, the rotational member (300) and the blower assembly (400) coupled thereto can rotate smoothly.

[0179] The anti-separation member (320) prevents the rotating body (310) coupled with the rotating support member (130) from being arbitrarily separated from one side in the longitudinal direction, i.e., to the right in the illustrated embodiment. The anti-separation member (320) is continuous with the rotating body (310). In the illustrated embodiment, the anti-separation member (320) is located at one side in the longitudinal direction of the rotating body (310), i.e., at the left end.

[0180] The anti-separation member (320) is located on the outside of the rotation support member (130). The anti-separation member (320) is located on the outside of the first rotation support member (130a), i.e., on the left side, and is arranged to face the rotation body (310) with the first rotation support member (130a) interposed therebetween.

[0181] The anti-separation member (320) can be formed to have a cross-sectional area larger than that of the rotational through-hole (132). Therefore, the anti-separation member (320) does not enter the rotational through-hole (132), thereby preventing the rotational body (310) from being accidentally separated.

[0182] The anti-separation member (320) may have any shape that can restrict the rotating body (310) from being arbitrarily separated from the rotating through hole (132). In the illustrated embodiment, the anti-separation member (320) is a circular plate shape with a circular cross-section and a thickness in the left-right direction.

[0183] In the above embodiment, the diameter of the cross-section of the anti-separation member (320) may exceed the diameter of the cross-section of the rotating body (310). In addition, the diameter of the cross-section of the anti-separation member (320) may exceed the diameter of the cross-section of the rotating through-hole (132).

[0184] A cam member (330) is positioned opposite to the anti-separation member (320).

[0185] The cam member (330) is configured such that the rotating member (300) is coupled to the movable member (200). The cam member (330) is rotatably coupled to the cam coupling portion (220). The linear movement of the cam coupling portion (220) can be converted into the rotation of the cam member (330). Accordingly, the rotating body (310) coupled to the cam member (330) and the blower assembly (400) can be rotated together.

[0186] The cam member (330) is coupled to the rotation support member (130). Specifically, a part of the cam member (330) (i.e., the cam rod (332) to be described later) is movably penetrated into the rotation through hole (132) of the second rotation support member (130b).

[0187] The cam member (330) is coupled to the moving member (200). Specifically, the cam member (330) is rotatably coupled to the cam coupling portion (220). The cam member (330) can be rotated by the movement of the cam coupling portion (220).

[0188] The cam member (330) is coupled to the rotating body (310). The cam member (330) is located on the other side of the longitudinal direction of the rotating body (310), at the right end in the illustrated embodiment. The cam member (330) can rotate together with the rotating body (310).

[0189] In the illustrated embodiment, the cam member (330) includes a cam body (331), a cam rod (332), and a cam support (333).

[0190] The cam body (331) is configured such that the cam member (330) is coupled to the rotating body (310). One side of the cam body (331), the left side in the illustrated embodiment, is continuous with the other side of the longitudinal direction of the rotating body (310), the right end in the illustrated embodiment. The cam body (331) can rotate together with the rotating body (310).

[0191] The cam body (331) is coupled to the cam rod (332). The other side of the cam body (331), the right side in the illustrated embodiment, is continuous with the cam rod (332). The cam body (331) can rotate together with the cam rod (332).

[0192] The cam body (331) is positioned to cover the second rotation support (130b) from the outside. The cam body (331) is positioned to face the cam support (333) with the cam coupling (220) interposed therebetween.

[0193] The cam body (331) may have any shape that can be rotated together with the rotating body (310) and the cam rod (332). In the illustrated embodiment, the cam body (331) has a circular cross-section and a disk shape with a thickness in the left-right direction.

[0194] In the above embodiment, the diameter of the cross-section of the cam body (331) may be formed to exceed the diameter of the cross-section of the rotary through hole (132). In addition, the cam rod (332) may be positioned eccentrically with respect to the center of the cam body (331).

[0195] The cam rod (332) is configured such that the cam member (330) is rotatably coupled to the rotating body (310). The cam rod (332) is penetrated and coupled to the cam coupling groove (222).

[0196] One side of the cam rod (332), the left side in the illustrated embodiment, is coupled to the cam body (331). As described above, the cam rod (332) can be positioned eccentrically with respect to the center of the cross-section of the cam body (331).

[0197] The other side of the cam rod (332), in the illustrated embodiment, the right side, is coupled to the cam support (333). The cam rod (332) is positioned between the cam body (331) and the cam support (333) along its thickness direction.

[0198] The cam rod (332) is coupled to the cam body (331) and the cam support (333), respectively, and may have any shape that can be rotatably coupled through the cam coupling groove (222). In the illustrated embodiment, the cam rod (332) has a cylindrical shape with a circular cross-section and a length in the left-right direction.

[0199] In the above embodiment, the diameter of the cross-section of the cam rod (332) can be formed to be less than or equal to the length in the width direction of the cam coupling groove (222).

[0200] The cam support (333) restricts the cam rod (332) from being displaced in the longitudinal direction of the rotating body (310). The cam support (333) is arranged to be continuous with the cam rod (332), but to face the cam rod (332) with the cam engaging protrusion (221) interposed therebetween. In other words, the cam support (333) is arranged to cover the cam engaging protrusion (221) from the outside.

[0201] One side of the cam support (333), the left side in the illustrated embodiment, is coupled with the cam rod (332). In addition, the one side of the cam support (333), i.e. the left side, is positioned to cover the cam coupling (220) from the outside.

[0202] The cam support (333) is coupled with the cam rod (332) and may have any shape that can restrict the cam rod (332) from being arbitrarily withdrawn from the cam coupling groove (222). In the illustrated embodiment, the cam support (333) is a disc-shaped structure with a circular cross-section and a thickness in the left-right direction.

[0203] In the above embodiment, the diameter of the cross-section of the cam support (333) can be formed to exceed the length in the width direction of the cam coupling groove (222).

[0204] The blower assembly (400) blows air to the terminal (120) to cool the terminal (120). Heat generated in the terminal (120) can be discharged to the outside by the air transported by the blower assembly (400).

[0205] The blower assembly (400) is coupled to the outer frame (100). Specifically, the blower assembly (400) is coupled to the rotating member (300) and is rotatably coupled to the rotating support member (130).

[0206] That is, the blower assembly (400) is located on the outside of the outer frame (100). Therefore, the wiring structure required to operate the blower assembly (400) can be formed simply.

[0207] The blower assembly (400) is coupled to the rotating member (300). Specifically, a rotating body (310) is penetratingly coupled to the blower assembly (400). When the rotating body (310) rotates, the blower assembly (400) can also rotate together.

[0208] In the embodiment illustrated in FIGS. 12 and 13, the blower assembly (400) includes a blower support body (410), a rotating member coupling member (420), and a blower member (430).

[0209] The blower support body (410) constitutes a portion of the outer shape of the blower assembly (400). The blower support body (410) is coupled to other components of the blower assembly (400) to support them. In the illustrated embodiment, the blower support body (410) is coupled to the rotating member coupling member (420) and the blower member (430) to support them.

[0210] The blower support body (410) may have any shape that can be combined with the rotating member coupling member (420) and the blower member (430) to support them. In the illustrated embodiment, the blower support body (410) is formed in a polygonal plate shape with a width in the left-right direction longer than the length in the front-back direction and a thickness in the up-down direction.

[0211] One side in the width direction of the blower support body (410), the rear side in the illustrated embodiment, is coupled to the rotation member coupling member (420). The other side in the width direction of the blower support body (410), the front side in the illustrated embodiment, is maintained as a free end.

[0212] A blower member (430) is arranged on one side of the thickness direction of the blower support body (410), in the illustrated embodiment, on the upper side.

[0213] The rotating member coupling member (420) is a configuration in which the blower assembly (400) is coupled to the rotating member (300). The rotating member coupling member (420) can rotate together with the rotating member (300). Accordingly, the blower support body (410) coupled to the rotating member coupling member (420) and the blower member (430) supported thereby can rotate together.

[0214] The rotating member coupling member (420) is coupled with the rotating member (300). Specifically, the rotating member coupling member (420) is coupled with the rotating body (310) and can rotate together.

[0215] The rotating member coupling member (420) is coupled to the blower support body (410). The rotating member coupling member (420) is coupled to one side in the width direction of the blower support body (410), i.e., the rear side.

[0216] The rotating member coupling member (420) may have a shape corresponding to the shape of the rotating body (310) and the blower support body (410). In the illustrated embodiment, the rotating member coupling member (420) has a length in the left-right direction, has a circular outer periphery, and is formed to have an annular cross-section with a rotating member receiving portion (423) formed therethrough.

[0217] In the illustrated embodiment, the rotating member coupling member (420) includes a first rotating inner surface (421), a second rotating inner surface (422), and a rotating member receiving portion (423).

[0218] The first rotation inner surface (421) constitutes a portion of the inner surface of the rotation member connecting member (420). In the illustrated embodiment, the first rotation inner surface (421) constitutes the inner surface of the remaining portion excluding the front side.

[0219] The first rotation inner surface (421) may have a shape corresponding to the shape of the rotation member receiving portion (423). In the illustrated embodiment, the first rotation inner surface (421) is formed as a curved surface having a cross-section in the shape of a rounded arc that is convex outward.

[0220] The second rotation inner surface (422) constitutes another portion of the inner surface of the rotation member connecting member (420). In the illustrated embodiment, the second rotation inner surface (422) constitutes the front side inner surface.

[0221] The second rotation inner surface (422) may have a shape corresponding to the shape of the second rotation outer surface (312) of the rotation body (310). In the illustrated embodiment, the second rotation inner surface (422) is formed as a plane having a height in the vertical direction and a length in the left-right direction.

[0222] The second rotation inner surface (422) can be in contact with the second rotation outer surface (312). Accordingly, as described above, the blower assembly (400) can be prevented from being damaged.

[0223] The first rotation inner surface (421) and the second rotation inner surface (422) may have shapes corresponding to the shapes of the first rotation outer surface (311) and the second rotation outer surface (312), respectively.

[0224] Specifically, the first inner rotation surface (421) can be extended by an angle corresponding to the angle at which the blower member (430) must be rotated. In addition, the second inner rotation surface (422) can be positioned so that the second outer rotation surface (312) does not come into contact with the inner rotation surface of the rotation support member (130) even when the blower member (430) is rotated.

[0225] In an embodiment where the blower member (430) can be rotated by 90°, each end of the second rotational inner surface (422) in the height direction can be spaced apart from the center of the rotational member coupling member (420) to form a right angle.

[0226] Likewise, in the above embodiment, each end of the second rotational outer surface (312) in the height direction can also be spaced apart at a right angle with respect to the center of the rotational body (310).

[0227] The rotating member receiving portion (423) is a space formed inside the rotating member connecting portion (420). The rotating member receiving portion (423) receives the rotating body (310).

[0228] The rotating member receiving portion (423) is formed to extend in the longitudinal direction of the rotating member connecting portion (420), in the left and right directions in the illustrated embodiment. Each end of the rotating member receiving portion (423) in the longitudinal direction, in the illustrated embodiment, the left and right ends, are formed to be open.

[0229] The rotating member receiving portion (423) is defined by being surrounded by a first rotating inner surface (421) and a second rotating inner surface (422). In the illustrated embodiment, one radial portion of the rotating member receiving portion (423) is surrounded by the first rotating inner surface (421), and the other radial portion is surrounded by the second rotating inner surface (422).

[0230] The shape of the rotating member receiving portion (423) may correspond to the shapes of the first rotating inner surface (421) and the second rotating inner surface (422). In the illustrated embodiment, the cross-section of the rotating member receiving portion (423) is generally circular, but the front side is formed as a vertical straight line.

[0231] As described above, by the above shape, the rotation of the rotating body (310) penetratedly connected to the rotating member receiving portion (423) is prevented.

[0232] The blower member (430) provides a conveying force to the air. The conveying force provided by the blower member (430) causes the air to flow toward the terminal (120). The heat generated in the terminal (120) is discharged to the outside by the flowing air, so that the terminal (120) can be cooled.

[0233] The blower member (430) may be provided in any shape capable of providing a conveying force to the air. In one embodiment, the blower member (430) may be provided in the shape of a fan including a plurality of blades.

[0234] In the above embodiment, the blower member (430) can be electrically connected to an external power source (not shown) or a control unit (not shown). The power and control signals required for the operation of the blower member (430) can be transmitted from an external power source (not shown) or a control unit (not shown).

[0235] To this end, the blower support body (410) or the rotating member coupling member (420) may be provided with a configuration, such as a conductor member, for electrically connecting the blower member (430) and an external power source (not shown) or control unit (not shown).

[0236] Alternatively, the conductor member may be provided on the rotating member (300). In the above embodiment, the conductor member may extend through the rotating body (310) to the blowing member (430).

[0237] The blower member (430) is coupled to the blower support body (410). The blower member (430) can be supported by the blower support body (410). In the illustrated embodiment, the blower member (430) is positioned on one side of the blower support body (410) in the thickness direction, i.e., on the upper side. The blower member (430) can be rotated together with the blower support body (410).

[0238] A plurality of blower members (430) may be provided. The plurality of blower members (430) are spaced apart from each other so as to cool the plurality of terminals (120), respectively. In the illustrated embodiment, a total of three blower members (430) are provided, and are spaced apart in the direction of separation of the first to third terminals (121, 122, 123), i.e., in the left-right direction. Each blower member (430) is configured to cool the first to third terminals (121, 122, 123), respectively.

[0239] Accordingly, multiple terminals (121, 122, 123) can be cooled by multiple blower members (430), so that cooling efficiency can be improved.

[0240] Additionally, the blower member (430) is positioned at the lower side of the terminal (120) and directs air for cooling upward. Considering that heat tends to flow from the lower side to the upper side, it will be understood that the terminal (120) can be effectively cooled by the air flow formed by the blower member (430).

[0241]

[0242] Referring to FIGS. 14 to 17, a process of rotating a blower assembly (400) provided in a circuit breaker (10) according to an embodiment of the present invention is illustrated as an example.

[0243] Referring to FIGS. 14 and 15, a circuit breaker (10) adjusted to a first state (S1) is illustrated as an example. The first state (S1) may be defined as a state in which the circuit breaker (10) is being moved or installed, i.e., a state in which cooling of the terminal (120) is not required.

[0244] In the above state, an external force in the form of a straight line is applied to the grip portion (230) of the movable member (200) toward one side in the longitudinal direction, i.e., the rear side. Accordingly, the cam coupling portion (220) coupled to the grip portion (230) by the movable body (210) also moves toward the rear side.

[0245] The cam member (330) rotatably coupled to the cam coupling portion (220) rotates clockwise. Accordingly, the rotating body (310) coupled with the cam member (330) and the blower assembly (400) coupled thereto rotate together clockwise, so that the blower member (430) is not exposed to the outside.

[0246] Referring to FIGS. 16 and 17, a circuit breaker (10) adjusted to a second state (S2) is illustrated as an example. The second state (S2) can be defined as a state in which the circuit breaker (10) is in use, i.e., a state in which cooling of the terminal (120) is required.

[0247] In the above state, an external force in the form of a straight line is applied to the grip portion (230) of the movable member (200) in the longitudinal direction, i.e., toward the front side. Accordingly, the cam coupling portion (220) coupled to the grip portion (230) by the movable body (210) also moves toward the front side.

[0248] The cam member (330) rotatably coupled to the cam coupling portion (220) rotates counterclockwise. Accordingly, the rotating body (310) coupled with the cam member (330) and the blower assembly (400) coupled thereto rotate together counterclockwise, so that the blower member (430) can transfer air upward, i.e., toward the direction in which the terminal (120) is arranged.

[0249]

[0250] The circuit breaker (10) according to the embodiment of the present invention described above includes a blower assembly (400) for cooling a terminal (120). The blower assembly (400) is arranged on the outside of the outer frame (100), so that a wiring structure for operating the blower assembly (400) can be formed simply.

[0251] Additionally, the blower assembly (400) is positioned on the lower side of the terminal (120) that is exposed to the outside. Considering the direction of heat movement, the cooling efficiency of the terminal (120) can be improved by air flowing from the lower side to the upper side.

[0252] Furthermore, the blower assembly (400) is rotatably coupled to the outer frame (100) by a movable member (200). When the circuit breaker (10) is used, the blower assembly (400) can be unfolded to cool the terminal (120). When the circuit breaker (10) is being moved or installed, the blower assembly (400) can be folded so as not to be exposed to the outside.

[0253] Accordingly, damage to the blower assembly (400) due to the external environment can be prevented.

[0254] The above process can be achieved by applying a linear external force that is relatively easy to apply to the moving member (200). Accordingly, the rotation of the blower assembly (400) can be easily performed.

[0255]

[0256] Although the embodiments of the present invention have been described, the spirit of the present invention is not limited to the embodiments presented in this specification, and those skilled in the art who understand the spirit of the present invention will be able to easily propose other embodiments by adding, changing, deleting, or adding components within the scope of the same spirit, but this will also be considered to fall within the spirit of the present invention.

[0257] 10: Circuit breaker 100: Outer frame

[0258] 110: Frame body 120: Terminal

[0259] 121: Terminal 1 122: Terminal 2

[0260] 123: Terminal 3 130: Rotating support

[0261] 130a: First rotation support 130b: Second rotation support

[0262] 131: Rotating support body 132: Rotating through hole

[0263] 140: Moving support 141: Moving support body

[0264] 142: Moving through hole 200: Moving member

[0265] 210: Moving body 220: Cam joint

[0266] 221: Cam engagement protrusion 222: Cam engagement groove

[0267] 230: grip section 231: grip protrusion

[0268] 232: Restriction protrusion 233: Phage groove

[0269] 300: Rotating member 310: Rotating body

[0270] 311: First rotation outer circumference 312: Second rotation outer circumference

[0271] 320: Anti-separation member 330: Cam member

[0272] 331: Cam body 332: Cam rod

[0273] 333: Cam support 400: Blower assembly

[0274] 410: Blower support body 420: Rotating member connecting member

[0275] 421: If you give me the first turn, 422: If you give me the second turn

[0276] 423: Rotating member receiving section 430: Blower member

Claims

1. External frame that constitutes the exterior; A movable member movably coupled to the outer frame in one direction; A rotating member rotatably connected to the outer frame and configured to be rotatably connected to the movable member by link fit and configured to be rotatably connected by movement of the movable member; and It includes a blower assembly that is coupled with the above rotating member and rotates together, The above outer frame, A terminal disposed so as to be at least partially exposed to the outside and electrically connected to the outside, The above blower assembly is, arranged at the lower side of the terminal and configured to provide a fluid for cooling toward the terminal; crossing gate.

2. In paragraph 1, The above outer frame, A movable support member that protrudes in a different direction from the lower side and movably supports the movable member, crossing gate.

3. In paragraph 2, The above moving support part, A movable support body protruding in the above other direction; and A movable through hole formed in the interior of the above movable support body in one direction and through which the movable member is movably connected, crossing gate.

4. In paragraph 2, The above moving member is, A movable body extending in the above one direction and movably penetratingly connected to the movable support member; A gripping portion positioned at one end of the above moving body and positioned outside the above moving support portion along the above one direction; and A cam coupling portion positioned at the other end of the moving body and linked to the rotating member, crossing gate.

5. In paragraph 4, The above moving support part, It includes a movable through hole formed in the one direction and through which the movable member is movably connected, The above-mentioned phasing portion is formed to have a cross-sectional area larger than the above-mentioned moving through hole. crossing gate.

6. In paragraph 4, The above cam joint is, A cam-engaging projection formed protruding from the one end of the above moving body; and A cam coupling groove is formed penetrating in the other direction inside the cam coupling protrusion and is rotatably coupled with the rotating member. crossing gate.

7. In paragraph 6, The above cam coupling protrusion and the above cam coupling groove are each formed such that their height direction length is longer than their width direction length. crossing gate.

8. In paragraph 1, The above outer frame, A rotary support member that protrudes in the above direction from the lower side and rotatably supports the rotary member, crossing gate.

9. In paragraph 8, The above rotating support member, A rotating support body protruding in the above one direction; and A rotary through hole formed in the other direction through the inside of the above rotary support body and through which the rotary member is rotatably connected, crossing gate.

10. In paragraph 8, The above rotating member is, a rotating body extending in another direction and rotatably coupled to the rotating support; and A cam coupling portion positioned at one end of the above rotating body and linked to the moving member, crossing gate.

11. In paragraph 10, The above cam joint is, A cam rod extending in the other direction and penetratingly connected to the moving member; A cam body coupled with one side of the cam rod along the other direction and covering the rotation support from the outside in the other direction; and A cam support member is coupled to the other side of the cam rod along the other direction and is positioned facing the cam body with the cam rod interposed therebetween. crossing gate.

12. In paragraph 11, The above cam rod is positioned eccentrically with respect to the center of the cross-section of the cam body. crossing gate.

13. In paragraph 1, The above blower assembly is, A blower member positioned below the terminal and configured to provide the fluid toward the terminal; A blower support body that supports the above blower member and extends in the other direction; and A rotating member coupling member positioned on one side of the above-mentioned blower support body and coupled with the above-mentioned rotating member, crossing gate.

14. In paragraph 13, The above rotating member is, It comprises a rotating body extending in the other direction and having a portion of its outer periphery formed as a plane, The above rotating member joining member is, Including a rotating member receiving portion formed penetrating in the other direction inside and into which the rotating body is penetratingly connected. crossing gate.

15. In paragraph 14, The above rotating member coupling member is, A first inner surface of rotation formed as a rounded surface that surrounds the rotating member receiving portion on one radial side and is convexly rounded toward the outside; and A second inner surface of rotation is formed in a plane corresponding to a part of the outer circumference of the rotating body and is in contact with the part, surrounding the rotating member receiving portion on the radial side. crossing gate.

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