Circuit breaker

Abstract

A circuit breaker is disclosed. A circuit breaker according to an aspect of the present invention may comprise: an outer frame forming an outer shape and having a body accommodation space formed therein; a blowing member which is accommodated in the outer frame to be withdrawable therefrom and is configured to suction a fluid staying in the body accommodation space; and a fluid channel member accommodated in the outer frame to be withdrawable therefrom and communicating with the blowing member to receive the fluid, wherein: the outer frame includes a terminal which is disposed to be at least partially exposed to the outside and is conductively connected to the outside; the fluid channel member includes a fluid channel body positioned on the lower side of the terminal and configuring a fluid channel in which the transferred fluid moves, and a discharge hole formed through the fluid channel body to configure a passage through which the introduced fluid is discharged 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 document 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 a component provided for cooling may not be exposed to the outside.

[0018] Another object of the present invention is to provide a circuit breaker having a structure in which a plurality of components that are electrically connected to the outside can each be cooled.

[0019] Another object of the present invention is to provide a circuit breaker having a structure capable of providing a fluid for cooling to a plurality of points, the structure being provided for cooling.

[0020] 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.

[0021] 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.

[0022] According to one aspect of the present invention, a circuit breaker is provided, comprising: an outer frame having an outer shape and a body receiving space formed therein; a blower member that is retractably received in the outer frame and configured to suction a fluid remaining in the body receiving space; and a flow path member that is retractably received in the outer frame and is in communication with the blower member to receive the fluid, wherein the outer frame includes a terminal that is disposed to be at least partially exposed to the outside and is electrically connected to the outside, and the flow path member includes a flow path body that is located below the terminal and constitutes a flow path through which the transmitted fluid flows; and a discharge hole that is formed through the flow path body and constitutes a passage through which the introduced fluid is discharged toward the terminal.

[0023] At this time, a circuit breaker may be provided in which the euro body includes a blower member coupling portion that is coupled to the blower member and communicates with the blower member to receive the fluid; and a discharge body that is coupled to and communicates with the blower member coupling portion, is located on the lower side of the terminal, and has the discharge hole formed therein.

[0024] In addition, a circuit breaker may be provided in which the terminals are provided in a plurality and spaced apart from each other along one direction, the discharge body extends along the one direction, the discharge holes are provided in a plurality and spaced apart from each other along the one direction, and the plurality of discharge holes are configured to discharge the fluid to the plurality of terminals, respectively.

[0025] At this time, the circuit breaker may be provided, wherein the euro body is positioned between the blower member coupling portion and the discharge body, and includes a connecting body that is coupled and communicates with the blower member coupling portion and the discharge body, respectively.

[0026] Additionally, a circuit breaker may be provided in which the blower member coupling portion and the connecting body extend in one direction, and the discharge body extends in the other direction.

[0027] At this time, the euro member may be provided with a circuit breaker including an exhaust hole formed penetrating through an end portion in the extension direction of the discharge body, and connecting the discharge space formed inside the discharge body and the main body receiving space.

[0028] In addition, a circuit breaker may be provided, wherein the exhaust hole includes a first exhaust hole located at one end in the extension direction of the discharge body; and a second exhaust hole located at the other end in the extension direction of the discharge body.

[0029] At this time, the discharge body may be provided with a blocker in which one side of the one direction is connected to the connecting body and communicates with it, and the first exhaust hole is formed through the other side of the one direction in the direction in which the fluid flowing into the discharge body flows.

[0030] Additionally, the second exhaust hole may be provided with a blocker formed to penetrate in the one direction.

[0031] At this time, a circuit breaker may be provided in which the outer frame includes a body support member that movably supports the circuit breaker body and extends in one direction and is formed to have a predetermined height, and the blower member and the flow path member are formed to have a lower height than the body support member.

[0032] In addition, a circuit breaker may be provided in which the main body support member is formed to have a width shorter than the main body receiving space, and the blowing member is positioned between one inner surface in the width direction of the outer frame and the main body support member.

[0033] At this time, the main body support member is formed to have a shorter length than the main body receiving space, so that the breaker can be provided in which the cyclic member is positioned between one inner surface of the longitudinal direction of the outer frame and the main body support member.

[0034] In addition, a circuit breaker may be provided in which the above-mentioned body includes a blower member coupling portion that is coupled to the blower member and communicates with the blower member to receive the fluid; and a discharge body that is coupled to and communicates with the blower member coupling portion, is located below the terminal, and has the discharge hole formed therein, and a cross-sectional area of ​​an inlet space formed inside the blower member coupling portion is formed to be larger than a cross-sectional area of ​​a discharge space formed inside the discharge body.

[0035] 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.

[0036] 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.

[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 exposed to the outside.

[0038] In addition, according to the above configuration, the circuit breaker according to the embodiment of the present invention can cool a plurality of components that are electrically connected to the outside.

[0039] In addition, according to the above configuration, the circuit breaker according to the embodiment of the present invention is configured to provide a fluid for cooling to a plurality of points.

[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] FIG. 1 is a perspective view illustrating a circuit breaker according to an embodiment of the present invention.

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

[0044] Figures 3 and 4 are perspective views showing an external frame provided in the circuit breaker of Figure 1.

[0045] Figure 5 is a front view showing the outer frame of Figures 3 and 4.

[0046] Figure 6 is a AA cross-sectional perspective view illustrating the outer frame of Figures 3 and 4.

[0047] Fig. 7 is a cross-sectional view taken along line AA showing the outer frame of Figs. 3 and 4.

[0048] Fig. 8 is a perspective view showing a blower member provided in the circuit breaker of Fig. 1.

[0049] Fig. 9 is a perspective view showing a euro member provided in the circuit breaker of Fig. 1.

[0050] Fig. 10 is a plan view showing the absence of the euro in Fig. 9.

[0051] Fig. 11 is a front view showing the absence of the euro in Fig. 9.

[0052] Fig. 12 is a side view illustrating the absence of the euro in Fig. 9.

[0053] Fig. 13 is a BB cross-sectional view showing the absence of the euro in Fig. 9.

[0054] Figures 14 to 17 are cross-sectional perspective views illustrating the flow process of fluid formed in the circuit breaker of Figure 1.

[0055] Fig. 18 is an exploded perspective view showing the coupling relationship of each component provided in the circuit breaker of Fig. 1.

[0056] 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.

[0057] 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.

[0058] 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.

[0059] In the following description, descriptions of some components may be omitted to clarify the features of the present invention.

[0060] 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.

[0061] 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."

[0062] 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.

[0063] The terms “upper side,” “lower side,” “left side,” “right side,” “front side,” and “rear side” used in the following description shall be understood with reference to the coordinate system depicted throughout the attached drawings.

[0064]

[0065] Referring to FIGS. 1 and 2, 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).

[0066] 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.

[0067] 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.

[0068] 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.

[0069] 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).

[0070] 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.

[0071] 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.

[0072] In the illustrated embodiment, the circuit breaker (10) includes an outer frame (100), a blower member (200), and a flow path member (300).

[0073] The outer frame (100) constitutes the outer shape of the circuit breaker (10). The outer frame (100) accommodates other components of the circuit breaker (10), namely, the blower member (200) and the flow path member (300). The outer frame (100) supports the accommodated blower member (200) and the flow path member (300).

[0074] 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.

[0075] In addition, the space may accommodate a blower member (200) and a flow path member (300). At this time, the blower member (200) and the flow path member (300) may be accommodated in a retractable manner in the space. Therefore, when maintenance of the blower member (200) or the flow path member (300) is required, maintenance can be performed by withdrawing only the blower member (200) or the flow path member (300) without replacing the entire circuit breaker (10).

[0076] 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.

[0077] In the embodiments illustrated in FIGS. 3 to 7, the outer frame (100) includes a frame body (110), a terminal (120), a main body receiving space (130), a main body support member (140), a blower member receiving space (150), and a flow path member receiving space (160).

[0078] 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).

[0079] A body receiving space (130) is formed inside the frame body (110). A circuit breaker body (not shown) can be received in a retractable manner in the body receiving space (130). The outer frame (100) can be electrically connected by being coupled to the circuit breaker body (not shown) inserted into the body receiving space (130).

[0080] A main body support member (140) is positioned inside the frame body (110). One side of the inner surface of the frame body (110) that surrounds the main body receiving space (130) in the height direction, in the illustrated embodiment, from the lower side, supports the main body support member (140).

[0081] A blower member receiving space (150) and a flow path member receiving space (160) are formed inside the frame body (110). One of the surfaces of the frame body (110), i.e., the lower surface, surrounds the blower member receiving space (150) and the flow path member receiving space (160). The one surface of the frame body (110) can support the blower member (200) and the flow path member (300).

[0082] The frame body (110) can be configured to receive a circuit breaker body (not shown) in a retractable manner, and can be combined with other components of the external frame (100) to support them, or can have any shape capable of receiving other components of the circuit breaker (10). 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.

[0083] At this time, one side of the longitudinal direction of the frame body (110), the front side in the illustrated embodiment, is formed open so that the circuit breaker body (not illustrated) can be pulled in and out. In addition, as will be described later, the blower member (200) and the flow path member (300) can be pulled in or out into the interior of the frame body (110) through the one side, i.e., the front side.

[0084] A terminal (120) is coupled to the longitudinal side of the frame body (110), the rear side in the illustrated embodiment.

[0085] 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).

[0086] Another part of the terminal (120) may be exposed to a body receiving space (130) formed inside the frame body (110). The other part of the terminal (120) may be electrically coupled to a circuit breaker body (not shown) introduced into the body receiving space (130). 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.

[0087] 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 rear side of the frame body (110).

[0088] 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).

[0089] Accordingly, the circuit breaker (10) according to an embodiment of the present invention includes separate components for effectively cooling the heat generated at the terminal (120), namely, a blower member (200) and a flow path member (300). The blower member (200) provides a conveying force to a fluid remaining outside or inside the outer frame (100). The flow path member (300) forms a flow path for the flowing fluid, thereby guiding the fluid to the terminal (120).

[0090] Accordingly, the heat generated in the terminal (120) can be discharged to the outside and the terminal (120) can be cooled at the same time.

[0091] 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).

[0092] 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).

[0093] 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).

[0094] 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).

[0095] 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).

[0096] 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).

[0097] 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.

[0098] The first to third terminals (121, 122, 123) may be arranged to overlap the flow member (300) along the height direction of the frame body (110), or in the vertical direction in the illustrated embodiment. As will be described later, the flow member (300) may be provided with first to third discharge holes (331, 332, 333).

[0099] In the above embodiment, the first to third terminals (121, 122, 123) may be arranged to overlap the first to third discharge holes (331, 332, 333) in the height direction, respectively. In one embodiment, the first to third terminals (121, 122, 123) may be positioned above the first to third discharge holes (331, 332, 333).

[0100] In the above embodiment, the fluid discharged from the first to third discharge holes (331, 332, 333) may be configured to flow in a direction from the bottom to the top to cool the first to third terminals (121, 122, 123). Considering that heat moves from the bottom to the top, it will be understood that the first to third terminals (121, 122, 123) can be effectively cooled by the above arrangement.

[0101] The body receiving space (130) is defined as a portion of a space formed inside the frame body (110). The body receiving space (130) is at least partially surrounded by a surface surrounding the frame body (110). In the illustrated embodiment, the body receiving space (130) is surrounded by the upper, left, right, and rear sides of the frame body (110).

[0102] One longitudinal side of the main body receiving space (130), in the illustrated embodiment, the front side, is formed open. The circuit breaker body (not shown) can be introduced into the main body receiving space (130) or withdrawn from the main body receiving space (130) through the one side, i.e., the front side.

[0103] One side in the height direction of the main body receiving space (130), the lower side in the illustrated embodiment, is surrounded by the lower inner surface of the frame body (110). The one side in the height direction of the main body receiving space (130), i.e. the lower side, is connected to the blower member receiving space (150) and the flow path member receiving space (160).

[0104] The fluid flowing along the blower member (200) and the flow path member (300) located in the blower member receiving space (150) and the flow path member receiving space (160) can flow out into the main body receiving space (130).

[0105] A terminal (120) is at least partially positioned in the main body receiving space (130). In the illustrated embodiment, a front portion of the terminal (120) is exposed on the rear side of the main body receiving space (130). Fluid flowing out from the blower member (200) and the flow path member (300) can flow toward the terminal (120) and be utilized to cool the terminal (120).

[0106] A body support member (140) is positioned in the body receiving space (130).

[0107] The main body support member (140) movably supports the circuit breaker main body (not shown). The circuit breaker main body (not shown) inserted into the main body receiving space (130) can be moved along the main body support member (140).

[0108] The main body support member (140) is supported by one side in the height direction of the frame body (110), the lower side in the illustrated embodiment. The main body support member (140) is located in the main body receiving space (130).

[0109] The main body support member (140) at least partially surrounds the blower member receiving space (150) and the flow path member receiving space (160). The blower member (200) and the flow path member (300), respectively positioned in the blower member receiving space (150) and the flow path member receiving space (160), can be at least partially supported by the main body support member (140).

[0110] The body support member (140) may be of any shape that can movably support the circuit breaker body (not shown) and at least partially surround the blower member receiving space (150) and the flow path member receiving space (160). In the illustrated embodiment, the body support member (140) extends in the longitudinal direction of the frame body (110), and in the front-back direction in the illustrated embodiment.

[0111] At this time, the height of the main body support member (140), i.e., the vertical length in the illustrated embodiment, may be formed to be greater than the height of the blower member (200) or the flow path member (300), i.e., the vertical length. Accordingly, even when the circuit breaker body (not shown) is coupled and moved to the main body support member (140), it may not be obstructed by the blower member (200) or the flow path member (300).

[0112] The main body support member (140) may be spaced apart from the widthwise surface of the frame body (110), the left side and the right side in the illustrated embodiment, along the widthwise direction. Accordingly, a blower member receiving space (150) may be formed between the main body support member (140) and the widthwise surface of the frame body (110).

[0113] Additionally, the main body support member (140) may be spaced apart from the longitudinal surface of the frame body (110), i.e., the rear side surface in the illustrated embodiment, along the longitudinal direction. Accordingly, a flow member receiving space (160) may be formed between the main body support member (140) and the longitudinal surface of the frame body (110).

[0114] The blower member receiving space (150) receives the blower member (200). In one embodiment, the blower member receiving space (150) can receive the blower member (200) in a retractable manner.

[0115] The air blower member receiving space (150) is located inside the frame body (110). The air blower member receiving space (150) is defined by being at least partially surrounded by the frame body (110).

[0116] In the illustrated embodiment, one side in the width direction of the air blower member receiving space (150), i.e., the left side, and one side in the length direction, i.e., the front side, are surrounded by the left side and the front side of the frame body (110). In addition, one side in the height direction of the air blower member receiving space (150), i.e., the lower side in the illustrated embodiment, is surrounded by the lower side of the frame body (110).

[0117] The blower member receiving space (150) is connected to the main body receiving space (130). The other side in the height direction of the blower member receiving space (150), in the illustrated embodiment, the upper side, is formed open and connected to the main body receiving space (130). Accordingly, the blower member (200) can be received in the blower member receiving space (150) via the main body receiving space (130) whose front side is open.

[0118] The blower member receiving space (150) is at least partially surrounded by the main body support member (140). In the illustrated embodiment, the right side of the blower member receiving space (150) is surrounded by the main body support member (140).

[0119] The other side in the longitudinal direction of the ventilation member receiving space (150), the rear side in the illustrated embodiment, is formed open and communicates with the flow member receiving space (160).

[0120] The blower member receiving space (150) can receive the blower member (200) in a retractable manner and can have any shape that can be communicated with the main body receiving space (130) and the flow path member receiving space (160). In the illustrated embodiment, the blower member receiving space (150) has a rectangular cross-section and is formed as a polygonal prism-shaped space having a vertical height. The shape of the blower member receiving space (150) can be changed to correspond to the shape of the blower member (200).

[0121] In the illustrated embodiment, the blower member receiving space (150) is located on the left side of the lower side of the frame body (110). Alternatively, the blower member receiving space (150) may be located on the right side of the lower side of the frame body (110).

[0122] The euro member receiving space (160) receives the euro member (300). In one embodiment, the euro member receiving space (160) can receive the euro member (300) in a retractable manner.

[0123] The euro member receiving space (160) is located inside the frame body (110). The euro member receiving space (160) is defined by being at least partially surrounded by the frame body (110).

[0124] In the illustrated embodiment, each longitudinal side of the flow member receiving space (160), i.e., the left and right sides, is surrounded by the left and right sides of the frame body (110). One widthwise side of the flow member receiving space (160), the rear side in the illustrated embodiment, is surrounded by the rear side of the frame body (110). The other widthwise side of the flow member receiving space (160), the front side in the illustrated embodiment, is partially surrounded by the main body support member (140), while the other portion is in communication with the blower member receiving space (150).

[0125] One side in the height direction of the euro member receiving space (160), the lower side in the illustrated embodiment, is surrounded by the lower surface of the frame body (110). The other side in the height direction of the euro member receiving space (160), the upper side in the illustrated embodiment, is formed open and communicates with the main body receiving space (130).

[0126] Accordingly, the euro member (300) can be accommodated in the euro member accommodation space (160) via the main body accommodation space (130) with the front side open. In addition, the fluid discharged from the euro member (300) can flow toward the terminal (120) which is at least partially exposed to the main body accommodation space (130).

[0127] The euro member receiving space (160) can receive the euro member (300) in a withdrawable manner and can have any shape that can be connected to the main body receiving space (130) and the blower member receiving space (150). In the illustrated embodiment, the euro member receiving space (160) is formed as a polygonal prism-shaped space in which the length in the left-right direction is longer than the width in the front-back direction and the height in the up-down direction is greater.

[0128] The shape of the euro member receiving space (160) can be changed to correspond to the shape of the euro member (300).

[0129] In the illustrated embodiment, the euro member receiving space (160) is located on the rear side of the lower side of the frame body (110). In any case, it is sufficient if the euro member receiving space (160) can be located adjacent to the terminal (120).

[0130] The blower member (200) generates a conveying force for the fluid remaining inside or outside the circuit breaker (10) to flow. The fluid can flow by the conveying force provided by the blower member (200) and flow along the blower member (200) and the flow path member (300) and then be discharged toward the terminal (120).

[0131] The blower member (200) can be electrically connected to an external frame (100) or a circuit breaker body (not shown). Power and control signals required for the operation of the blower member (200) can be provided from the external frame (100) or the circuit breaker body (not shown).

[0132] In another embodiment, the blower member (200) may be directly electrically connected to an external control unit (not shown) and a power source (not shown). In the above embodiment, the power and control signals required for the operation of the blower member (200) may be provided from an external control unit (not shown) and a power source (not shown).

[0133] The blower member (200) is coupled to the outer frame (100). Specifically, the blower member (200) is retractably accommodated in the blower member accommodation space (150). The blower member (200) can be supported by the configuration of the outer frame (100) surrounding the blower member accommodation space (150), i.e., the inner surface of the frame body (110) and the main body support member (140).

[0134] The blower member (200) is coupled to the flow path member (300). At this time, the blower member (200) can be connected to and coupled with the flow path member (300). Accordingly, the fluid flowing by the conveying force applied by the blower member (200) can flow out to the flow path member (300).

[0135] The blower member (200) may be provided in any form that can provide a conveying force to the fluid and guide it toward the flow path member (300). In one embodiment, the blower member (200) may be provided in the form of a suction member for sucking the fluid.

[0136] Specifically, in an embodiment in which the blower member (200) is provided in the form of a suction member, the blower member (200) can suck up a fluid remaining in the main body receiving space (130) or a fluid remaining on the outside of the external frame (100). The fluid sucked up by the blower member (200) can flow toward a flow path member (300) that is connected and coupled with the blower member (200).

[0137] That is, it will be understood that the flow of fluid formed by the blower member (200) is formed in a direction toward the flow path member (300) through the blower member (200).

[0138] In the embodiment illustrated in FIG. 8, the blower member (200) includes a blower body (210), a flow coupling member (220), and a fluid guide member (230).

[0139] The blower body (210) constitutes the outer shape of the blower member (200). The blower body (210) is coupled to other components of the blower member (200) to support them. In the illustrated embodiment, a flow path coupling portion (220) and a fluid guide member (230) are coupled to the blower body (210).

[0140] The blower body (210) is supported by the frame body (110) and the main body support member (140). In the illustrated embodiment, one side in the width direction of the blower body (210), i.e., the right side, is supported by the main body support member (140).

[0141] The blower body (210) is combined with other components of the blower member (200) to support them, and may have any shape that can be accommodated and supported by the external frame (100). In the illustrated embodiment, the blower body (210) has a polygonal prism shape with a rectangular cross-section and a vertical height.

[0142] The blower body (210) is connected to the outside. That is, the fluid flowing by the operation of the fluid guide member (230) can flow into the inside of the blower body (210). In addition, the fluid flowing into the inside of the blower body (210) can flow out to the flow member (300) through the flow path connecting portion (220).

[0143] On one side of the longitudinal direction of the blower body (210), in the illustrated embodiment, the rear side, a flow coupling portion (220) and a fluid guide member (230) are positioned.

[0144] The flow coupling portion (220) is a portion where the blower member (200) is coupled to the flow coupling portion (300). The flow coupling portion (220) is coupled to and communicates with the flow body (310) of the flow coupling portion (300). Fluid can flow to the flow coupling portion (300) through the flow coupling portion (220) of the blower member (200).

[0145] The flow coupling (220) is connected to the blower body (210). An external fluid can flow through the blower body (210) to the flow coupling (220). The flow coupling (220) is connected to a fluid guide member (230). The conveying force applied by the fluid guide member (230) can be provided to the flow coupling (220), the blower body (210), and the external fluid.

[0146] The euro joint (220) is connected to the euro member (300). Specifically, the euro joint (220) is connected to and connected to the blower member joint (311) of the euro body (310). Fluid introduced into the euro joint (220) can flow out into the inflow space (321) formed inside the blower member joint (311).

[0147] The euro joint (220) is coupled to the blower member joint (311) and can be positioned at any location that can communicate with the inflow space (321). In the illustrated embodiment, the euro joint (220) is positioned on the rear side of the blower body (210) and is positioned to face the blower member joint (311).

[0148] The euro joint (220) is coupled to the blower member joint (311) and can be formed in any shape that can communicate with the inflow space (321). In the illustrated embodiment, the euro joint (220) is formed as a recessed groove on the inner side of the rear side of the blower body (210).

[0149] The fluid guide member (230) applies a conveying force to an external fluid. In an embodiment in which the blower member (200) is provided as a suction member, the fluid guide member (230) may be provided in the form of a fan including a plurality of blades.

[0150] As described above, the fluid guide member (230) is electrically connected to an external frame (100), a circuit breaker body (not shown), an external control unit (not shown) or a power source (not shown), and can receive power and control signals.

[0151] The fluid guide member (230) is connected to the blower body (210) and the flow path coupling portion (220), respectively. The conveying force formed by the fluid guide member (230) can be applied to the blower body (210) and the flow path coupling portion (220), respectively, and provided to an external fluid.

[0152] The fluid guide member (230) may be positioned at any location capable of providing a conveying force to an external fluid. In the illustrated embodiment, the fluid guide member (230) is positioned at the rear side of the blower body (210), adjacent to the flow path coupling portion (220). In an embodiment in which the flow path coupling portion (220) is formed as a groove, the fluid guide member (230) may be accommodated in the flow path coupling portion (220).

[0153] The fluid guide member (230) is positioned between the blower body (210) and the flow path body (310). The fluid guide member (230) is in communication with the flow path body (310), so that the flowing fluid can be introduced into the flow path space (320) formed inside the flow path body (310).

[0154] The flow path member (300) forms a flow path through which the fluid flowed by the blower member (200) flows. The fluid flowing along the flow path member (300) is provided to the terminal (120) and can be utilized to cool the heat generated at the terminal (120).

[0155] The euro member (300) is coupled to the outer frame (100). Specifically, the euro member (300) is accommodated in the euro member accommodation space (160) and supported by the frame body (110) and the main body support member (140).

[0156] In the illustrated embodiment, each longitudinal side of the euro member (300), i.e., the left and right sides, is supported by the left and right sides of the frame body (110). One widthwise side of the euro member (300), i.e., the rear side in the illustrated embodiment, is supported by the rear side of the frame body (110).

[0157] The other side in the width direction of the euro member (300), a portion of the front side in the illustrated embodiment, is supported by the main body support member (140). At the same time, the other side in the width direction of the euro member (300), i.e., another portion of the front side, can be supported by being combined with the blower member (200).

[0158] One side in the height direction of the euro member (300), the lower side in the illustrated embodiment, is supported on the lower surface of the frame body (110). The other side in the height direction of the euro member (300), the upper side in the illustrated embodiment, is connected to the main body receiving space (130).

[0159] The flow member (300) is connected to and coupled with the blower member (200). Fluid introduced into the blower member (200) can flow into the flow member (300). The flow member (300) is connected to the main body receiving space (130). Fluid flowing into the flow member (300) can flow out into the main body receiving space (130).

[0160] In the embodiments illustrated in FIGS. 9 to 13, the euro member (300) includes a euro body (310), a euro space (320), a discharge hole (330), and an exhaust hole (340).

[0161] The euro body (310) constitutes the body of the euro member (300). The euro body (310) is a portion where the euro member (300) is connected to the external frame (100) and the blower member (200).

[0162] The euro body (310) is coupled to the outer frame (100). Specifically, the euro body (310) is accommodated in the euro member accommodation space (160) and supported by the frame body (110) and the main body support member (140).

[0163] The euro body (310) is coupled to the blower member (200). Specifically, the euro body (310) is coupled to the euro connecting portion (220) and communicates with the blower member (200).

[0164] A flow space (320) is formed inside the flow body (310). A discharge hole (330) and an exhaust hole (340) are formed through the flow body (310), so that the flow space (320) can be connected to the outside.

[0165] The euro body (310) is positioned adjacent to the terminal (120). As described above, the terminal (120) may be configured to include first to third terminals (121, 122, 123) spaced apart in the width direction of the frame body (110), i.e., in the left-right direction. The euro body (310) may extend along the spaced apart direction of the first to third terminals (121, 122, 123).

[0166] The euro body (310) is accommodated and supported by the outer frame (100), is coupled to and communicates with the blower member (200), and may have any shape that can be positioned adjacent to a plurality of terminals (120).

[0167] In the illustrated embodiment, the euro body (310) is composed of a first portion (i.e., a portion including a blower member coupling portion (311) and a connecting body (312)) extending in the longitudinal direction of the frame body (110), i.e., in the front-back direction, and a second portion (i.e., a portion constituting a discharge body (313)) extending in the direction in which a plurality of terminals (120) are spaced apart, i.e., in the left-right direction.

[0168] At this time, the first part and the second part may be continuous at a predetermined angle. In the illustrated embodiment, the first part and the second part extend vertically. In the above embodiment, the first part may be connected to the blower member (200) and the second part, respectively, and may be in communication with each other.

[0169] In the illustrated embodiment, the euro body (310) includes a blower member coupling portion (311), a connecting body (312), and a discharge body (313).

[0170] The blower member joint (311) is a portion where the filament body (310) is joined to the blower member (200). The blower member joint (311) constitutes a portion of the filament body (310), the front left portion in the illustrated embodiment.

[0171] The blower member joint (311) is continuous with the connecting body (312). The blower member joint (311) extends between the flow path joint (220) of the blower member (200) and the connecting body (312) and is connected thereto, respectively.

[0172] An inflow space (321) forming a portion of a flow path space (320) is formed inside the blower member coupling portion (311). The inflow space (321) is communicated with the flow path coupling portion (220) or the fluid guide member (230), and can form a flow path through which a fluid is introduced. The inflow space (321) is communicated with a flow space (322) formed inside the connecting body (312), and the introduced fluid can be transferred to the flow space (322).

[0173] The blower member coupling portion (311) may have any shape that can be coupled to the euro coupling portion (220) and the connecting body (312) and connect them. In the illustrated embodiment, the blower member coupling portion (311) has a polygonal prism shape with a rectangular cross-section and a length in the front-back direction.

[0174] In the above embodiment, one longitudinal side of the blower member coupling portion (311), in the illustrated embodiment, the front side, is coupled and communicated with the flow path coupling portion (220) of the blower member (200). The other longitudinal side of the blower member coupling portion (311), in the illustrated embodiment, the rear side, is coupled and communicated with the discharge body (313).

[0175] At this time, the shape of the cross-section of the blower member coupling portion (311) may be formed to correspond to the shape of the cross-section of the flow path coupling portion (220). In one embodiment, the blower member coupling portion (311) may be formed to overlap the flow path coupling portion (220) and the fluid guide member (230) along the longitudinal direction thereof, i.e., the front-back direction.

[0176] In addition, the cross-sectional area of ​​the blower member coupling portion (311) may be formed to be larger than the cross-sectional area of ​​the connecting body (312) or the discharge body (313). Accordingly, the cross-sectional area of ​​the inflow space (321) formed therein may also be formed to be larger than the cross-sectional area of ​​the flow space (322) or the discharge space (323).

[0177] Accordingly, the fluid introduced into the blower member joint (311) can flow more quickly through the connecting body (312) or the discharge body (313). Accordingly, the cooling effect of the terminal (120) can be improved.

[0178] The connecting body (312) is continuous with the blower member coupling portion (311) and the discharge body (313), respectively. The connecting body (312) is coupled to the blower member coupling portion (311) and the discharge body (313), respectively, and is in communication with them, respectively. The connecting body (312) forms a flow path for the fluid transmitted to the blower member coupling portion (311) to flow to the discharge body (313).

[0179] A flow space (322) constituting another part of the flow space (320) is formed inside the connecting body (312). The flow space (322) is connected to the inlet space (321) and the discharge space (323), respectively, and can form a flow path through which the fluid flows.

[0180] The connecting body (312) may have any shape that can be connected to the blower member connecting portion (311) and the discharge body (313) and communicate with them. In the illustrated embodiment, the connecting body (312) has a polygonal prism shape with a rectangular cross-section and a length in the front-back direction.

[0181] In the above embodiment, one longitudinal side of the connecting body (312), the front side in the illustrated embodiment, is coupled and communicated with the blower member coupling portion (311). The other longitudinal side of the connecting body (312), the rear side in the illustrated embodiment, is coupled and communicated with the discharge body (313).

[0182] At this time, the shape of the cross-section of the connecting body (312) may be formed to correspond to the shape of the cross-section of the blower member coupling portion (311). In one embodiment, the connecting body (312) may be arranged to overlap the flow path coupling portion (220), the fluid guide member (230), and the blower member coupling portion (311) along the longitudinal direction, the front-rear direction in the illustrated embodiment.

[0183] In addition, the cross-sectional area of ​​the connecting body (312) may be formed smaller than the cross-sectional area of ​​the blower member connecting portion (311). Accordingly, as described above, the flow speed of the fluid flowing inside the connecting body (312) may be increased.

[0184] The discharge body (313) is continuous with the connecting body (312). The discharge body (313) is connected to the connecting body (312) and is connected thereto. The discharge body (313) forms a path for the fluid flowing by the blower member (200) to flow to the discharge hole (330) so as to be discharged to the outside.

[0185] A discharge space (323) is formed inside the discharge body (313), which constitutes the remaining portion of the flow space (320). The discharge space (323) is connected to the flow space (322) to receive fluid. In addition, the discharge space (323) is connected to the main body receiving space (130) via the discharge hole (330) and the exhaust hole (340), so that the transferred fluid can flow out.

[0186] The discharge body (313) may have any shape that can be connected and communicated with the connecting body (312). In the illustrated embodiment, the discharge body (313) has a polygonal prism shape with a rectangular cross-section and a length in the left-right direction.

[0187] In the above embodiment, one side of the longitudinal direction of the discharge body (313), the other side, the front side on the left side in the illustrated embodiment, is connected to and communicated with the connecting body (312). At this time, the shape of the cross-section of the discharge body (313) can be formed to correspond to the shape of the cross-section of the connecting body (312). In the above embodiment, the cross-sectional area of ​​the discharge body (313) can be formed to be the same as the cross-sectional area of ​​the connecting body (312).

[0188] A discharge hole (330) is formed in the discharge body (313). The discharge hole (330) is formed on one side of each side of the discharge body (313) facing the terminal (120), in the illustrated embodiment, on the upper side. Fluid introduced into the interior of the discharge body (313) can pass through the discharge hole (330) and be discharged toward the terminal (120).

[0189] An exhaust hole (340) is formed in the discharge body (313). An exhaust hole (340) is formed on a portion of each side of the longitudinal direction of the discharge body (313), in the illustrated embodiment, on the rear side on the left side and the front side and rear side on the right side. A portion of the fluid introduced into the interior of the discharge body (313) flows out into the main body receiving space (130) through the exhaust hole (340), so that the pressure of the fluid flowing inside the discharge body (313) can be appropriately maintained.

[0190] Some edges of the ejection body (313), i.e., the rear edge on the left side in the illustrated embodiment, the front edge on the right side, and the rear edge, may be formed to be rounded so as to be convex outward. In addition, other edges of the ejection body (313), i.e., the front edge on the left side in the illustrated embodiment, may be formed to be rounded so as to be convex inward.

[0191] Accordingly, the fluid introduced into the discharge body (313) does not remain unnecessarily in the discharge space (323) and can be discharged toward the main body receiving space (130) and the terminal (120) located therein.

[0192] Any one or more of the blower member coupling portion (311), the connecting body (312), and the discharge body (313) constituting the above-described euro body (310) may be detachably coupled to each other. For example, the blower member coupling portion (311), the connecting body (312), and the discharge body (313) may all be detachably coupled.

[0193] Alternatively, the connecting body (312) and the discharge body (313) may be formed integrally, but the blower member coupling portion (311) may be detachably coupled to the connecting body (312) and the discharge body (313) coupled thereto.

[0194] In the above embodiment, the euro member (300) can be withdrawn from the euro member receiving space (160) in a manner in which one or more of the detachably coupled members are separated and first withdrawn, and then the remaining components are sequentially withdrawn. It will be understood that the installation process of the euro member (300) can be performed in reverse.

[0195] The flow path space (320) is a space formed inside the flow path body (310). The flow path space (320) is connected to the blower member (200) and constitutes a space in which a fluid flowing by the blower member (200) flows. The flow path space (320) is at least partially surrounded by the flow path body (310), so that random leakage of the fluid can be prevented.

[0196] The euro space (320) may have a shape corresponding to the shape of the euro body (310). In addition, the euro space (320) may be divided into a plurality of parts corresponding to each part of the euro body (310).

[0197] In the illustrated embodiment, the euro space (320) includes an inlet space (321), a flow space (322), and a discharge space (323).

[0198] The inflow space (321) is a space formed inside the blower member coupling part (311). The inflow space (321) is a space formed inside the blower body (210), is connected to the flow path coupling part (220) or the fluid guide member (230), and constitutes a space through which fluid flows into the flow path member (300).

[0199] The inflow space (321) may have a shape corresponding to the shape of the euro joint (220) or the blower member joint (311). In the illustrated embodiment, the inflow space (321) is formed as a polygonal prism-shaped space having a rectangular cross-section and a length in the front-back direction.

[0200] In the above embodiment, one longitudinal side of the inflow space (321), the front side in the illustrated embodiment, is formed open and communicates with the blower member (200). The other longitudinal side of the inflow space (321), the rear side in the illustrated embodiment, is formed open and communicates with the flow space (322).

[0201] The flow space (322) is a space formed inside the connecting body (312). The flow space (322) is connected to the inflow space (321) and the discharge space (323), respectively. The flow space (322) provides a passage for the fluid introduced into the inflow space (321) to flow out into the discharge space (323).

[0202] The flow space (322) may have a shape corresponding to the shape of the connecting body (312). In the illustrated embodiment, the flow space (322) is formed as a polygonal prism-shaped space having a rectangular cross-section and a length in the front-back direction.

[0203] In one embodiment, as described above, the cross-sectional area of ​​the flow space (322) can be formed smaller than the cross-sectional area of ​​the inflow space (321).

[0204] In the above embodiment, one longitudinal side of the flow space (322), the front side in the illustrated embodiment, is formed open and communicates with the inflow space (321). The other longitudinal side of the flow space (322), the rear side in the illustrated embodiment, is formed open and communicates with the discharge space (323).

[0205] The discharge space (323) is a space formed inside the discharge body (313). The discharge space (323) is connected to the flow space (322) and can receive the provided fluid. The discharge space (323) is connected to the main body receiving space (130) through the discharge hole (330) or the exhaust hole (340). The fluid flowing into the discharge space (323) can flow out into the main body receiving space (130) through the discharge hole (330) or the exhaust hole (340).

[0206] The discharge space (323) may have a shape corresponding to the shape of the discharge body (313). In the illustrated embodiment, the discharge space (323) is formed as a polygonal prism-shaped space having a rectangular cross-section and a length in the left-right direction.

[0207] In one embodiment, as described above, the cross-sectional area of ​​the discharge space (323) can be formed to be equal to the cross-sectional area of ​​the flow space (322).

[0208] In the above embodiment, a portion of one side in the longitudinal direction of the discharge space (323), the front side on the left side in the illustrated embodiment, is formed open and communicates with the flow space (322). A discharge hole (330) is formed on one side in the height direction of the discharge space (323), the upper side in the illustrated embodiment, and communicates with the main body receiving space (130).

[0209] An exhaust hole (340) is formed on the other side of the longitudinal direction of the discharge space (323) and on the other side of the longitudinal direction, the rear side on the left side and the front side and rear side on the right side in the illustrated embodiment, and is connected to the main body receiving space (130).

[0210] The discharge hole (330) provides a passage for the fluid introduced into the flow space (320) to be discharged toward the terminal (120) located in the main body receiving space (130). The discharge hole (330) is formed penetrating the discharge body (313) and connects the discharge space (323) and the main body receiving space (130).

[0211] The discharge hole (330) is located on one side of the discharge body (313) facing the terminal (120), in the illustrated embodiment, on the upper side. In other words, the discharge hole (330) is formed through one side of the discharge body (313) in the height direction.

[0212] The discharge hole (330) may be positioned at a position corresponding to the position of the terminal (120). In one embodiment, the discharge hole (330) may be positioned to overlap the terminal (120) along the height direction of the frame body (110), i.e., the up-down direction. In other words, the discharge hole (330) may be positioned at the lower side of the terminal (120).

[0213] In the above embodiment, the fluid discharged through the discharge hole (330) flows upward and cools the terminal (120) and then can be discharged to the outside of the external frame (100). As described above, the fluid flow direction is the same as the heat flow direction, and thus the cooling efficiency of the terminal (120) can be improved.

[0214] The discharge hole (330) may have any shape that can form a passage through which the fluid is discharged toward the terminal (120). In the illustrated embodiment, the discharge hole (330) is formed as a space in the shape of a disk having a circular cross-section and a thickness in the vertical direction.

[0215] A plurality of discharge holes (330) may be formed. The plurality of discharge holes (330) may be spaced apart from each other along the longitudinal direction of the discharge body (313) or the separation direction of the plurality of terminals (120). The plurality of discharge holes (330) may be respectively positioned on the lower side of the plurality of terminals (120).

[0216] In the illustrated embodiment, the discharge hole (330) includes a first discharge hole (331), a second discharge hole (332), and a third discharge hole (333).

[0217] The first discharge hole (331) is located on one side of the discharge body (313) in the longitudinal direction, on the left side in the illustrated embodiment. The first discharge hole (331) is located below the first terminal (121) located on the left side. The fluid discharged through the first discharge hole (331) flows toward the first terminal (121) and can cool the first terminal (121).

[0218] The second discharge hole (332) is located in the middle portion of the longitudinal direction of the discharge body (313). The second discharge hole (332) is located below the second terminal (122) located in the central portion. The fluid discharged through the second discharge hole (332) flows toward the second terminal (122) and can cool the second terminal (122).

[0219] The third discharge hole (333) is located on the other side of the discharge body (313) in the longitudinal direction, on the right side in the illustrated embodiment. The third discharge hole (333) is located below the third terminal (123) located on the right side. The fluid discharged through the third discharge hole (333) flows toward the third terminal (123) and can cool the third terminal (123).

[0220] At this time, the first discharge hole (331) and the third discharge hole (333) can be arranged to face each other with the second discharge hole (332) interposed between them along the longitudinal direction of the discharge body (313), or in the left-right direction in the illustrated embodiment.

[0221] The exhaust hole (340) forms a passage through which a portion of the fluid introduced into the flow path space (320) flows out into the main body receiving space (130). As the exhaust hole (340) is formed, a backflow phenomenon that may occur when all the fluid introduced into the flow path space (320) flows toward the discharge hole (330) can be prevented.

[0222] The exhaust hole (340) is formed penetrating the discharge body (313). Specifically, the exhaust hole (340) is formed penetrating the discharge body (313). At this time, the exhaust hole (340) may be formed in a portion of the discharge body (313) where the discharge hole (330) is not formed. In the illustrated embodiment, the exhaust hole (340) is located at an end portion in the longitudinal direction of the discharge body (313), i.e., a left end portion or a right end portion.

[0223] The exhaust hole (340) may have any shape that can connect the discharge space (323) and the main body receiving space (130). In the illustrated embodiment, the exhaust hole (340) is formed as a polygonal column-shaped space having a vertical height.

[0224] At this time, the cross-sectional area of ​​the exhaust hole (340) may be formed smaller than the cross-sectional area of ​​the discharge hole (330). Accordingly, most of the fluid introduced into the flow path space (320) may be discharged into the main body receiving space (130) through the discharge hole (330), and the remaining portion of the introduced fluid may be discharged through the exhaust hole (340). Consequently, most of the introduced fluid may be utilized to cool the terminal (120), thereby improving the cooling efficiency of the terminal (120).

[0225] A plurality of exhaust holes (340) can be formed. A plurality of exhaust holes (340) are formed in different parts of the discharge body (313), so as to connect the discharge space (323) and the main body receiving space (130).

[0226] In the illustrated embodiment, the exhaust hole (340) includes a first exhaust hole (341) and a second exhaust hole (342).

[0227] The first exhaust hole (341) is formed on a portion of one side of the longitudinal direction of the discharge body (313), i.e., on the rear side on the left side in the illustrated embodiment. The first exhaust hole (341) is configured to prevent the fluid that has passed through the inlet space (321) and the flow space (322) and flowed into the discharge space (323) from flowing backward after colliding with the inner surface of the discharge body (313).

[0228] Specifically, the discharge space (323) extends in a different direction from the inflow space (321) or the flow space (322). Therefore, the fluid flowing along the inflow space (321) and the flow space (322) inevitably collides with the inner surface of the discharge body (313) surrounding the discharge space (323).

[0229] At this time, if a portion of the collided fluid flows in the direction toward the flow space (322), i.e., toward the forward side, there is a concern that the flow of the flowing fluid may be reduced. Therefore, as the first exhaust hole (341) is formed, a portion of the fluid flowing into the discharge space (323) flows out into the main body receiving space (130), so that the backflow into the flow space (322) can be minimized.

[0230] To this end, the first exhaust hole (341) can be formed to penetrate in the direction in which the fluid flows into the discharge space (323), i.e., along the front-back direction in the illustrated embodiment.

[0231] The second exhaust hole (342) is formed on the other side of the longitudinal direction of the discharge body (313), that is, on the right end in the illustrated embodiment. The second exhaust hole (342) is configured to prevent the fluid flowing along the discharge space (323) from flowing back to the upstream side of the discharge space (323) after colliding with the inner surface of the discharge body (313).

[0232] Specifically, most of the fluid flowing along the discharge space (323) is discharged along the discharge hole (330), but some of the fluid may not pass through the discharge hole (330) and may remain in the discharge space (323).

[0233] As the fluid continues to flow into the discharge space (323), some of the remaining fluid may collide with the inner surface of the discharge body (313) surrounding the discharge space (323) and then flow again toward the upstream side of the discharge space (323), toward the left in the illustrated embodiment.

[0234] In this case, there is a concern that the flow of fluid flowing into the discharge space (323) may be reduced. Therefore, as the second exhaust hole (342) is formed, a portion of the fluid flowing to the downstream side of the discharge space (323), i.e., the right end in the illustrated embodiment, flows out to the main body receiving space (130), so that the backflow to the upstream side of the discharge space (323) can be minimized.

[0235] To this end, the second exhaust hole (342) may be formed to penetrate along the direction in which the fluid flows in the discharge space (323) or the extension direction of the discharge space (323), i.e., along the left-right direction in the illustrated embodiment.

[0236] A plurality of second exhaust holes (342) may be formed. The plurality of second exhaust holes (342) may respectively connect the discharge space (323) and the main body receiving space (130) at different locations. In the illustrated embodiment, a pair of second exhaust holes (342) are provided and are spaced apart in the front-back direction along the outer periphery of the right end of the discharge body (313) formed in a round shape.

[0237]

[0238] Referring to FIGS. 14 to 17, the flow process of a fluid formed inside a circuit breaker (10) according to an embodiment of the present invention is illustrated as an example.

[0239] When the blower member (200) is operated, a conveying force is applied to the fluid remaining outside the outer frame (100) or in the main body receiving space (130). The fluid flows toward the blower member (200) by the conveying force. The blower member (200) is connected to and communicates with the flow path member (300), so that the fluid flowing into the blower member (200) is transferred to the flow path member (300).

[0240] At this time, the fluid first enters the inflow space (321) formed inside the blower member connecting portion (311) that is connected to the blower member (200). The inflow space (321) is connected to the flow space (322) formed inside the connecting body (312), and the fluid flows into the flow space (322) through the inflow space (321).

[0241] In an embodiment where the cross-sectional area of ​​the flow space (322) is formed to be smaller than the cross-sectional area of ​​the inlet space (321), it will be understood that the flow velocity can increase as the fluid enters the flow space (322).

[0242] The flow space (322) is connected to the discharge space (323) formed inside the discharge body (313), and the fluid flows through the flow space (322) into the discharge space (323).

[0243] At this time, a portion of the flowing fluid can be discharged into the main body receiving space (130) through the first exhaust hole (341) formed in the discharge body (313). Accordingly, even when the flow direction of the fluid changes, the amount of fluid flowing backward can be minimized.

[0244] The fluid introduced into the discharge space (323) flows along the discharge space (323) extending in the left-right direction. At this time, the first to third discharge holes (331, 332, 333) are formed in the discharge body (313) spaced apart from each other in the extending direction of the discharge space (323), i.e., in the left-right direction.

[0245] Accordingly, the fluid flowing in the discharge space (323) flows from the upstream side toward the downstream side, and at least a portion of the fluid is discharged through the first to third discharge holes (331, 332, 333). The first to third discharge holes (331, 332, 333) are located below the first to third terminals (121, 122, 123).

[0246] Accordingly, the discharged fluid flows from the bottom to the top toward the first to third terminals (121, 122, 123) and can be discharged to the outside of the circuit breaker (10) after cooling the first to third terminals (121, 122, 123).

[0247] Meanwhile, a portion of the fluid flowing downstream along the discharge space (323), i.e., to the right end, can be discharged to the main body receiving space (130) through the second exhaust hole (342) formed in the discharge body (313). Accordingly, the amount of fluid flowing back to the downstream side of the discharge space (323) can be minimized.

[0248]

[0249] Referring to FIG. 18, the process of combining and separating each component of a circuit breaker (10) according to an embodiment of the present invention is illustrated as an example.

[0250] As described above, the main body receiving space (130) formed in the outer frame (100) is open on one side in the longitudinal direction, i.e., the front side. In addition, the main body receiving space (130) is connected to the blower member receiving space (150) and the flow path member receiving space (160), respectively.

[0251] The blower member (200) can be received in a drawable manner in the blower member receiving space (150) through the above-mentioned one side, i.e., the open front side, of the main body receiving space (130). In addition, the flow path member (300) can be received in a drawable manner in the flow path member receiving space (160) through the above-mentioned one side, i.e., the open front side, of the main body receiving space (130).

[0252] Therefore, when maintenance of the blower member (200) or the flow member (300) is required, only the blower member (200) or the flow member (300) can be withdrawn without disassembling the entire outer frame (100).

[0253] As described above, if one or more of the components of the euro body (310) are detachably connected, it will be understood that the process is performed in such a manner that one of the components is detached and withdrawn first, and the remaining components are withdrawn thereafter.

[0254]

[0255] 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.

[0256] 10: Circuit breaker 100: Outer frame

[0257] 110: Frame body 120: Terminal

[0258] 121: Terminal 1 122: Terminal 2

[0259] 123: Terminal 3 130: Main body storage space

[0260] 140: Body support member 150: Ventilation member accommodation space

[0261] 160: Euro-free space 200: Ventilation free space

[0262] 210: Blower body 220: Euro joint

[0263] 230: Fluid guide member 300: Euro member

[0264] 310: Euro body 311: Blower member joint

[0265] 312: connecting body 313: discharge body

[0266] 320: Euro space 321: Inflow space

[0267] 322: Flow space 323: Discharge space

[0268] 330: Discharge hole 331: First discharge hole

[0269] 332: Second discharge hole 333: Third discharge hole

[0270] 340: Exhaust hole 341: First exhaust hole

[0271] 342: Second exhaust pipe

Claims

1. An external frame that forms the exterior and has a space for accommodating the main body inside; A blower member configured to be retractably received in the outer frame and to suction a fluid remaining in the main body receiving space; and A flow path member is included which is accommodated in the outer frame and communicates with the blower member to transmit the fluid. 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 absence of euro is, A flow path body located at the lower side of the terminal and forming a flow path through which the transmitted fluid flows; and A discharge hole formed through the above-mentioned Euro body and forming a passage through which the introduced fluid is discharged toward the terminal, crossing gate.

2. In paragraph 1, The above Euro body is, A blower member coupling part coupled to the blower member and communicating with the blower member to receive the fluid; and A discharge body which is connected to and communicates with the above-mentioned blower member coupling part, is located on the lower side of the terminal, and includes the discharge body in which the discharge hole is formed. crossing gate.

3. In paragraph 2, The above terminals are provided in multiple numbers and are spaced apart from each other in one direction. The above discharge body extends along the above one direction, The above discharge holes are provided in multiple numbers and are spaced apart from each other along the above direction. The plurality of said discharge holes are configured to discharge the fluid to each of the plurality of said terminals, crossing gate.

4. In paragraph 2, The above Euro body is, A connecting body positioned between the blower member coupling portion and the discharge body, and connected and communicating with the blower member coupling portion and the discharge body, respectively, crossing gate.

5. In paragraph 4, The above blower member joint and the connecting body extend in one direction, and the discharge body extends in the other direction. crossing gate.

6. In paragraph 5, The above absence of euro is, An exhaust hole formed through the end portion of the elongated direction of the ejection body and connecting the ejection space formed inside the ejection body and the main body receiving space, crossing gate.

7. In paragraph 6, The above exhaust port is, A first exhaust hole located at one end of the extension direction of the above discharge body; and Including a second exhaust hole located at the other end in the extension direction of the above discharge body, crossing gate.

8. In paragraph 7, The above discharge body is connected to the connecting body by connecting one side of the one direction, The above first exhaust hole is formed to penetrate in the direction in which the fluid flowing into the discharge body flows on the other side of the one direction. crossing gate.

9. In paragraph 7, The above second exhaust hole is formed penetrating in the above one direction, crossing gate.

10. In paragraph 1, The above outer frame, It includes a body support member that supports the circuit breaker body movably and is formed to extend in one direction and have a predetermined height. The above-mentioned blower member and the above-mentioned guiding member are formed to have a lower height than the above-mentioned main body supporting member. crossing gate.

11. In paragraph 10, The above body support member is formed to have a width shorter than the body receiving space, and the blowing member is positioned between one inner side of the width direction of the outer frame and the body support member. crossing gate.

12. In paragraph 10, The above body support member is formed to have a shorter length than the body receiving space, and the directional member is positioned between one inner side of the longitudinal direction of the outer frame and the body support member. crossing gate.

13. In paragraph 1, The above Euro body is, A blower member coupling part coupled to the blower member and communicating with the blower member to receive the fluid; and It includes a discharge body that is connected to and communicates with the above-mentioned blower member coupling part, is located on the lower side of the terminal, and has the discharge hole formed therein. The cross-sectional area of the inflow space formed inside the above-mentioned blower member joint is formed to be larger than the cross-sectional area of the discharge space formed inside the above-mentioned discharge body. crossing gate.

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