breaker

Abstract

A circuit breaker is disclosed. One aspect of the circuit breaker includes: an outer frame forming a shape; and an air supply assembly located on one side of the outer frame in the height direction, configured to draw in fluid retained on the lower side of the air supply assembly; the outer frame includes: an air supply assembly support located on the same side in the height direction, supporting the air supply assembly; and a terminal block arranged on one side of the outer frame in the length direction, at least partially exposed to the outside, and electrically connected to the outside; the air supply assembly may include: an air supply body coupled to the air supply assembly support; and an air supply member located on each side of the air supply body facing the terminal block, applying a conveying force to the fluid.

Description

Technical Field

[0001] The present invention relates to a circuit breaker, and more specifically, to a circuit breaker that effectively cools the heat generated and prevents damage to structures designed for cooling. Background Technology

[0002] A circuit breaker is a device that allows or disconnects power to the outside world by the contact and separation of fixed and movable contacts. The fixed and movable contacts of a circuit breaker are energized and connected to an external power source or load.

[0003] The movable contact is movably disposed in the circuit breaker. The movable contact can move toward or away from the fixed contact. If the movable contact is in contact with the fixed contact, the circuit breaker can be energized and connected to an external power source or load.

[0004] At this time, the fixed or movable contact can be energized and connected to an external power source or load via the terminals provided on the circuit breaker. That is, the terminals connect the external power source or load to the fixed or movable contact. During the period when the circuit breaker is energized and connected to the external power source and load, the terminals generate heat.

[0005] If the heat generated at the terminals cannot be dissipated, the heat will remain in the circuit breaker. If the heat remains in the circuit breaker for an extended period, there is a risk that the generated heat may damage the circuit breaker's components. In particular, since the terminals are made of conductive materials, they are relatively susceptible to heat, thus there is a risk that the terminals may be damaged due to the generated heat.

[0006] In this situation, there is a risk of decreased reliability in the electrical connection between the terminal block and the external power supply or load. Additionally, there is a risk that the connection reliability between the terminal block and the fixed or movable contacts may also decrease, ultimately leading to a decrease in the operational reliability of the circuit breaker.

[0007] Therefore, there is a need for technology to quickly and effectively dissipate the heat generated in circuit breakers, especially at the terminals.

[0008] Japanese Patent Publication No. 2023-178483 discloses a cutting device. Specifically, it discloses a cutting device capable of cooling an electric arc generated into the internal space using a cooling body disposed within the internal space. The prior art discloses the effect of rapidly cooling the electric arc by the cooling body, thereby preventing damage to the internal structure of the cutting device.

[0009] However, the cutting devices disclosed in the existing literature only provide solutions for cooling the heat of the electric arc. The existing literature does not provide solutions for configuring the cutting device to be electrically connected to an external power source or load for cooling.

[0010] Korean Patent No. 10-2599372 discloses a distribution panel with a cooling unit. Specifically, it discloses a distribution panel that includes an air outlet located between an internal space and the outside, which allows air from the internal space to flow out to the outside of the enclosure.

[0011] However, the existing documents disclose distribution panels with cooling units, which only provide solutions for cooling components arranged within the internal space. These existing documents do not provide solutions for cooling components exposed to the outside of the enclosure, such as wiring terminals.

[0012] Furthermore, in the existing literature, the components designed for cooling are exposed to the outside, thus failing to provide a solution for preventing damage caused by the external environment.

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

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

[0015] The problem that the invention aims to solve

[0016] The present invention is intended to solve the problems described above. The object of the present invention is to provide a circuit breaker having a structure that can effectively cool and be electrically connected to the outside.

[0017] Another object of the present invention is to provide a circuit breaker having a structure designed for cooling that is not damaged by external factors.

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

[0019] Another object of the present invention is to provide a circuit breaker having a plurality of structures that can be individually cooled and electrically connected to the outside.

[0020] Another object of the present invention is to provide a circuit breaker having a plurality of structures that can be independently cooled and electrically connected to the outside.

[0021] Another object of the present invention is to provide a circuit breaker having a structure that is arranged for cooling while minimizing structural changes to other components.

[0022] The problems of this invention are not limited to those described above, and other problems not mentioned can be clearly understood by those skilled in the art from the following description.

[0023] Technical solutions to the problem

[0024] According to one aspect of the present invention, a circuit breaker is provided, comprising: an outer frame forming an external shape; and an air supply assembly located on one side of the outer frame in the height direction, configured to draw in fluid retained on the lower side of the air supply assembly; the outer frame comprising: an air supply assembly support located on the same side in the height direction, supporting the air supply assembly; and a terminal block arranged on one side of the outer frame in the length direction, at least partially exposed to the outside, and electrically connected to the outside; the air supply assembly comprising: an air supply body coupled to the air supply assembly support; and an air supply member located on each side of the air supply body facing the terminal block, applying a delivery force to the fluid.

[0025] At this point, a circuit breaker can be provided in which the air supply component is located above the terminal block and configured to provide a conveying force to the fluid in an upward direction from the bottom.

[0026] Alternatively, a circuit breaker may be provided in which the outer frame includes a power supply unit located on one side of the outer frame in the height direction, exposed to the outside, and configured to be electrically connected to the air supply member and provide power and control signals.

[0027] At this point, a circuit breaker can be provided, wherein the power supply section is arranged on the opposite side of the length direction of the outer frame, opposite to the wiring terminals.

[0028] Alternatively, a circuit breaker may be provided, wherein the terminal blocks are a plurality of each other, the plurality of terminal blocks being arranged separately from each other along the width direction of the outer frame; and the air supply components are a plurality of each other, the plurality of air supply components being arranged separately from each other along the length direction of the air supply body, and each located above the plurality of terminal blocks.

[0029] At this point, a circuit breaker can be provided in which a plurality of the air supply components are configured to operate independently of each other.

[0030] Alternatively, a circuit breaker may be provided, which includes a partition wall member that is combined with and supported by the outer frame and combined with the air supply body to form a space separating the plurality of the terminals and the plurality of the air supply members.

[0031] At this time, a circuit breaker can be provided, wherein the air supply assembly includes a partition wall member connecting groove, the partition wall member connecting groove being recessed from one side of the air supply body toward the terminal block to the other side; the partition wall member includes a partition wall body extending along the height direction of the outer frame, one side of the extending direction of the partition wall body being received in the partition wall member connecting groove, and the other side of the extending direction of the partition wall body being connected to and supported by the outer frame.

[0032] Alternatively, a circuit breaker may be provided in which a plurality of partition wall member connecting slots are provided, each accommodating a plurality of partition wall members; the plurality of air supply members and the plurality of partition wall member connecting slots are separated from each other and arranged alternately along the length of the air supply body.

[0033] At this time, a circuit breaker can be provided, wherein the terminals include a first terminal, a second terminal, and a third terminal arranged separately along the width direction of the outer frame and respectively energized with currents of different phases; the air supply components include a first air supply member, a second air supply member, and a third air supply member arranged separately along the length direction of the air supply body and disposed above the first terminal, the second terminal, and the third terminal; the partition wall components include: a first partition wall component separating the space between the first terminal and the first air supply member and the space between the second terminal and the second air supply member; and a second partition wall component arranged separately from the first partition wall component, separating the space between the second terminal and the second air supply member and the space between the third terminal and the third air supply member.

[0034] Alternatively, a circuit breaker may be provided in which the partition wall member includes a partition wall hollow, the partition wall hollow being surrounded and defined by the partition wall body, and the side opposite to the terminal block being open.

[0035] At this time, a circuit breaker can be provided, wherein the outer frame includes: a partition wall member support portion extending along the width direction of the outer frame to support the other side of the partition wall body; and a partition wall member connecting protrusion protruding from one side of the partition wall member support portion in the height direction and inserted into the hollow of the partition wall.

[0036] Alternatively, a circuit breaker may be provided in which the partition wall member includes an air supply member joint, the air supply member joint being formed on the outer side of said side of the partition wall body and engaging with a portion of the air supply body that surrounds the partition wall member joint groove.

[0037] At this time, a circuit breaker can be provided, wherein the air supply component joint includes: a placement protrusion that protrudes outward from the partition wall body and supports a portion of the air supply body from one side in the height direction; a support protrusion that is separated from the placement protrusion in the height direction and protrudes outward from the partition wall body and supports a portion of the air supply body from the other side in the height direction; and an insertion space formed between the placement protrusion and the support protrusion to accommodate the portion of the air supply body.

[0038] Invention Effects

[0039] According to the aforementioned configuration, the circuit breaker of this invention aims to effectively cool the configuration that is electrically connected to the outside.

[0040] Furthermore, according to the aforementioned configuration, the cooling configuration in the circuit breaker of this embodiment will not be damaged by external factors.

[0041] Furthermore, according to the aforementioned configuration, the circuit breaker of this embodiment can easily supply power to the configuration provided for cooling.

[0042] Furthermore, according to the aforementioned configuration, in the circuit breaker of this embodiment, the cooling configuration may not be exposed to the outside.

[0043] Furthermore, according to the aforementioned configuration, in the circuit breaker of the present invention, a plurality of components that are electrically connected to the outside can be cooled separately.

[0044] Furthermore, according to the aforementioned configuration, in the circuit breaker of the present invention, a plurality of components that can be electrically connected to the outside can be cooled independently.

[0045] Furthermore, according to the aforementioned configuration, in the circuit breaker of the present invention, the configuration provided for cooling can provide cooling fluid to a plurality of locations.

[0046] Furthermore, according to the aforementioned configuration, the circuit breaker of the present invention can be configured for cooling while minimizing structural changes to other configurations.

[0047] The effects of the present invention are not limited to those described above, but should be understood to include all effects that can be inferred from the composition of the invention as described in the detailed description or claims of the present invention. Attached Figure Description

[0048] Figure 1 and Figure 2 This is a perspective view showing a circuit breaker according to an embodiment of the present invention.

[0049] Figure 3 It is shown Figure 1 and Figure 2 An exploded 3D diagram of the components of a circuit breaker.

[0050] Figure 4 It is shown Figure 1 and Figure 2 A three-dimensional view of the external frame included in the design.

[0051] Figure 5 It is shown Figure 4 Top view of the outer frame.

[0052] Figure 6 It is shown Figure 1 and Figure 2 A three-dimensional view of the air supply assembly included in the diagram.

[0053] Figure 7 It is shown Figure 6 Front view of the air supply assembly.

[0054] Figure 8 It is shown Figure 6 A bottom view of the air supply assembly.

[0055] Figure 9 It is shown Figure 1 and Figure 2 A three-dimensional view of the partition wall components.

[0056] Figure 10 It is shown Figure 9 A three-dimensional view of the detailed structure of the partition wall component.

[0057] Figure 11 It is shown Figure 9 The front view of the partition wall component.

[0058] Figure 12 It is shown Figure 1 and Figure 2 The main view of the combined structure of the various components of the circuit breaker.

[0059] Figure 13 This is a perspective view showing a circuit breaker according to an embodiment of the present invention.

[0060] Figure 14 It is shown Figure 13 A cross-sectional view of the combined structure of the various components of the circuit breaker.

[0061] Figure 15 It is shown Figure 13 A BB cross-sectional view of the combined structure of the various components of the circuit breaker. Detailed Implementation

[0062] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings to enable those skilled in the art to readily implement the invention. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. For clarity of illustration, parts unrelated to the description have been omitted from the drawings, and the same or similar reference numerals are used throughout the specification to denote the same or similar components.

[0063] The words and terms used in this specification and claims should not be limited to their conventional or dictionary meanings, but should be interpreted as meanings and concepts consistent with the technical ideas of this invention, in accordance with the principle that the inventor has the right to define terms and concepts in order to best illustrate his invention.

[0064] Therefore, the embodiments and configurations shown in the accompanying drawings described in this specification correspond only to a preferred embodiment of the present invention and do not fully represent the technical concept of the present invention. In the present invention application, there may be various equivalent substitution schemes and modifications of this configuration.

[0065] In the following description, descriptions of certain constituent elements may be omitted in order to clearly define the features of the present invention.

[0066] The term "connection" as used in the following description refers to the connection of one or more components in a fluidly permeable manner. In one embodiment, a connection may be formed by components such as pipes, conduits, or piping. In the following description, a connection may also be used in the same sense as "fluid connection" between one or more components.

[0067] In the following description, the term "energized" refers to the connection of one or more components in a manner capable of transmitting current or electrical signals. In one embodiment, energization can be achieved using wired methods such as conductors or wireless methods such as Bluetooth, Wi-Fi, or RFID (Radio Frequency Identification). In one embodiment, energization may include the meaning of "communication".

[0068] In the following description, the term "fluid" refers to any substance that flows under the influence of external forces and has a deformable shape or volume. In one embodiment, the fluid may be a liquid such as water or a gas such as air.

[0069] The terms “upper side”, “lower side”, “left side”, “right side”, “front side” and “rear side” mentioned in the following description can be understood with reference to the coordinate system shown in the entire attached figure.

[0070] Reference Figures 1 to 3 The diagram illustrates a circuit breaker 10 according to an embodiment of the present invention. The circuit breaker 10 can be any form that allows it to be energized and disconnected from an external power source and load by means of contact and separation of fixed contacts (not shown) and movable contacts (not shown).

[0071] In one embodiment, circuit breaker 10 may be an air circuit breaker. As is known, an air circuit breaker is a circuit breaker in which the contact and separation processes of fixed contacts (not shown) and movable contacts (not shown) are performed in the air. However, the circuit breaker 10 of the embodiments of the present invention described below can be installed and applied to any type of circuit breaker as long as its technical features are maintained.

[0072] The circuit breaker 10 is energized and connected to an external power source (not shown) and a load (not shown). Inside the circuit breaker 10 are fixed contacts (not shown) and movable contacts (not shown) that are electrically contactable and separable from each other.

[0073] If the fixed contact (not shown) and the movable contact (not shown) are in contact with each other, the external power source (not shown) and the load (not shown) can be electrically connected to each other. If 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.

[0074] In an embodiment of the present invention where the circuit breaker 10 is an air circuit breaker, the circuit breaker 10 may include a frame and a circuit breaker body. The frame may include a configuration that is 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 that is electrically connected to the other of an external power source (not shown) and a load (not shown).

[0075] A defined space is formed inside the rack, and the circuit breaker body can be introduced into or introduced out of this defined space. If the circuit breaker body is introduced into the space of the rack, the configuration of the rack and the configuration of the circuit breaker body can be electrically connected to each other.

[0076] At this time, the circuit breaker 10 of this embodiment is exposed to the outside of the frame, thereby effectively cooling the components that can be electrically connected to the outside. Meanwhile, the arrangement of the components in the circuit breaker 10 provided for cooling can be easily changed according to the state of the circuit breaker 10, thereby preventing damage caused by external factors.

[0077] Furthermore, the circuit breaker 10 of this embodiment can easily supply power to the components designed for cooling. Therefore, the wiring structure for activating these components can be easily formed.

[0078] Furthermore, in the circuit breaker 10 of this embodiment, a plurality of components that are electrically connected to the outside can be cooled independently of each other. Therefore, components that generate excessive heat can be cooled in a concentrated manner, thereby improving cooling efficiency.

[0079] The effects that the circuit breaker 10 of the present invention can achieve will be described in detail later.

[0080] In the illustrated embodiment, the circuit breaker 10 includes an outer frame 100, an air supply assembly 200, and a partition wall member 300.

[0081] The outer frame 100 forms the shape of the circuit breaker 10. The outer frame 100 is combined with and supports the other components of the circuit breaker 10, namely the air supply assembly 200 and the partition wall member 300.

[0082] A space is formed inside the outer frame 100. Within this space, a component (not shown) corresponding to the circuit breaker body described above can be introduced and led out. This component can be electrically connected to the outer frame 100 and energized. That is, the outer frame 100 functions as the aforementioned cradle or enclosure.

[0083] The external frame 100 can be 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) in a plurality of locations.

[0084] exist Figure 4 and Figure 5 In the embodiment shown, the outer frame 100 includes a frame body 110, a terminal block 120, an air supply assembly support 130, a partition wall component support 140, a partition wall component connecting protrusion 150, and a power supply unit 160.

[0085] The frame body 110 constitutes the main body of the outer frame 100. The frame body 110 defines the shape of the outer frame 100. The frame body 110 is connected to or supports other components of the outer frame 100. In the illustrated embodiment, the frame body 110 is connected to and supports the terminal blocks 120.

[0086] Furthermore, the frame body 110 is connected to and supports the air supply assembly support 130, the partition wall component support 140, and the partition wall component connecting protrusion 150. Moreover, a power supply section 160 is formed on one side of the frame body 110 in the height direction, i.e., the upper side in the illustrated embodiment.

[0087] The frame body 110 can be of any shape that houses the circuit breaker body (not shown) as extendable, capable of combining with and supporting other components of the outer frame 100, and capable of combining with other components of the circuit breaker 10. In the illustrated embodiment, the frame body 110 is a quadrangular prism shape having a length in the front-to-back direction, a width in the left-to-right direction, and a height in the up-down direction.

[0088] A terminal block 120 is attached to one side of the frame body 110 along its length, i.e., the front side in the illustrated embodiment.

[0089] Terminal block 120 is a configuration that allows the outer frame 100 to be electrically connected to an external power source (not shown) or load (not shown). Terminal block 120 is attached to the frame body 110, thereby exposing at least a portion of it to the outside of the frame body 110. An external power source (not shown) or load (not shown) can be electrically connected to the portion of terminal block 120 exposed to the outside of the frame body 110.

[0090] Other portions of terminal block 120 may be exposed into the interior space of frame body 110. These other portions of terminal block 120 may be electrically connected to a circuit breaker body (not shown) introduced into said space. Thus, an external power source (not shown) or load (not shown), the external frame 100, and the circuit breaker body (not shown) may be electrically connected to each other.

[0091] The terminal block 120 protrudes at least partially to the outside of the frame body 110, allowing it to be positioned anywhere it can be electrically connected to an external power source (not shown) or load (not shown). In the illustrated embodiment, the terminal block 120 is located on the front side of the frame body 110.

[0092] Since the terminal blocks 120 are electrically connected to an external power source (not shown) or load (not shown) and the circuit breaker body (not shown), a large amount of heat is generated at the terminal blocks 120. If this heat is left unattended, the terminal blocks 120 and other components of the circuit breaker 10 may be damaged by the heat, thus posing a risk of reduced operational reliability of the circuit breaker 10.

[0093] Therefore, the circuit breaker 10 of this embodiment includes an additional component for effectively cooling the heat generated at the terminals 120, namely an air supply assembly 200. The air supply assembly 200 provides a conveying force to fluid trapped outside or inside the outer frame 100. The fluid flowing under the conveying force provided by the air supply assembly 200 can be discharged to the outside after cooling the terminals 120.

[0094] Thus, while the heat generated by the terminal 120 is discharged to the outside, the terminal 120 can be cooled.

[0095] The terminal block 120 may be formed of a material with high conductivity and rigidity. In one embodiment, the terminal block 120 may be formed of copper (Cu) or an alloy thereof.

[0096] There may be a plurality of terminal blocks 120. The plurality of terminal blocks 120 may be arranged separately from each other along the width or height direction of the frame body 110.

[0097] In the illustrated embodiment, the terminal block 120 includes a first terminal block 121, a second terminal block 122, and a third terminal block 123. This configuration arises from applying a three-phase current to the circuit breaker 10 of the present invention. The number of terminals 120 can vary depending on the phase of the current applied to the circuit breaker 10.

[0098] The first terminal 121 forms part of a plurality of terminals 120. A plurality of first terminals 121 are offset to one side in the width direction of the frame body 110. In the illustrated embodiment, the first terminal 121 has a pair arranged separately in the vertical direction, offset to the left front of the frame body 110.

[0099] The second terminal 122 constitutes another part of the plurality of terminals 120. A plurality of second terminals 122 are located in the middle portion of the frame body 110 in the width direction. In the illustrated embodiment, the second terminal 122 has a pair arranged separately in the vertical direction, located in the central portion in the horizontal direction in front of the frame body 110.

[0100] The third terminal 123 constitutes the remainder of the plurality of terminals 120. A plurality of third terminals 123 are located offset to the opposite side in the width direction of the frame body 110. In the illustrated embodiment, the third terminal 123 has a pair arranged separately in the vertical direction, offset to the right side of the front of the frame body 110.

[0101] In the above embodiment, the first terminal 121 and the third terminal 123 are arranged facing each other across the second terminal 122 along the width direction of the frame body 110, i.e., the left-right direction. The first terminal to the third terminal 121, 122, 123 are arranged separately from each other along the width direction, i.e., the left-right direction, so that the power supply between them can be disconnected.

[0102] At this point, the first to third terminals 121, 122, and 123 can be configured to be physically and electrically insulated from each other. Furthermore, the fluids cooling the first to third terminals 121, 122, and 123 can be physically separated from each other. Therefore, the first to third terminals 121, 122, and 123 can be cooled independently of each other. This can be achieved by the partition wall member 300, which will be described in detail later.

[0103] The air supply assembly support portion 130 is combined with and supports the air supply assembly 200. The air supply assembly support portion 130 is located on one side of the frame body 110 in the height direction, i.e., the upper side in the illustrated embodiment. The air supply assembly support portion 130 is biased towards the portion adjacent to the wiring terminal 120, i.e., the front side in the illustrated embodiment.

[0104] At this time, the air supply assembly support 130 can be separated from the wiring terminal 120 by a predetermined distance along the length direction of the frame body 110, i.e., the front-to-back direction. An air supply component 230 disposed on the air supply assembly 200 can be provided between the air supply assembly support 130 and the frame body 110.

[0105] The air supply assembly support 130 covers the space formed inside the frame body 110 from the side in the height direction, i.e. the upper side in the illustrated embodiment.

[0106] The air supply assembly support portion 130 can be of any shape capable of supporting the air supply assembly 200. In the illustrated embodiment, the air supply assembly support portion 130 is a polygonal prism shape with a length in the left-right direction longer than its width in the front-back direction and a height in the vertical direction. In the above embodiment, each end of the air supply assembly support portion 130 in the longitudinal direction can be combined with and supported by the frame body 110.

[0107] In one embodiment, the air supply assembly support portion 130 may be formed in accordance with the shape of the air supply body 210 disposed on the air supply assembly 200.

[0108] The partition wall component support 140 supports the partition wall component 300. The partition wall component support 140 is located on one side of the frame body 110 along its length, i.e., the front side in the illustrated embodiment. The partition wall component support 140 is also located on one side of the terminal block 120 along its height, i.e., the upper side in the illustrated embodiment. The partition wall component support 140 is arranged separately from the terminal block 120 along its height direction, i.e., vertically.

[0109] The partition wall component support 140 may extend along the width direction of the frame body 110 or in the direction in which the plurality of terminals 120 are arranged separately. In the illustrated embodiment, the partition wall component support 140 extends in the left-right direction.

[0110] One end of the partition wall component support 140 extends into one side of the frame body 110, i.e., the left side in the illustrated embodiment. The other end of the partition wall component support 140 extends into the other side of the frame body 110, i.e., the right side in the illustrated embodiment.

[0111] At this time, the partition wall component support 140 can be separated from the wiring terminal 120 by a predetermined distance along the length of the frame body 110, i.e., in the front-to-back direction. For example... Figure 5 As shown, the partition wall component support 140 can be located on the rear side relative to the wiring terminal 120.

[0112] The partition wall member support portion 140 can be of any shape capable of supporting the partition wall member 300. As described above, the partition wall member support portion 140 is a polygonal prism shape having a length in the left-right direction and a thickness in the up-down direction.

[0113] The partition wall component support 140 is combined with the partition wall component connecting protrusion 150.

[0114] The partition wall component is joined by the protrusion 150 and the partition wall component 300. The partition wall component 300 is joined by the protrusion 150, so that it can be maintained in a state supported by the partition wall component support 140 without arbitrarily shaking.

[0115] The partition wall component connecting protrusion 150 is connected to the partition wall component support portion 140. The partition wall component connecting protrusion 150 is formed from one side of the partition wall component support portion 140 in the height direction, that is, the upper side in the illustrated embodiment, protruding upward. The partition wall component connecting protrusion 150 is inserted into the partition wall hollow 320 provided in the partition wall component 300 and is supported by the partition wall body 310.

[0116] The partition wall member engaging protrusion 150 can be formed at a position corresponding to the location where the partition wall member 300 is to be arranged. In the illustrated embodiment, the partition wall member engaging protrusion 150 is located between a pair of terminals 120 arranged adjacent to each other among a plurality of terminals 120.

[0117] Therefore, the partition wall member 300, which engages with the partition wall member engagement protrusion 150, can be located between a pair of adjacent terminals 120. Thus, the partition wall member 300 can prevent the fluids exchanging heat with each terminal 120 from mixing arbitrarily.

[0118] The partition wall component connecting protrusion 150 can have a shape corresponding to the shape of the partition wall component 300. In the illustrated embodiment, the partition wall component connecting protrusion 150 is a polygonal prism shape with a quadrilateral cross-section and a height in the vertical direction. The shape of the partition wall component connecting protrusion 150 can be changed accordingly to the shape of the partition wall hollow 320 disposed in the partition wall component 300.

[0119] The partition wall member engaging protrusion 150 may be multiple. The multiple partition wall member engaging protrusions 150 are arranged separately from each other, so that they can each engage with a multiple partition wall member 300. In the illustrated embodiment, the partition wall member engaging protrusion 150 is a pair.

[0120] One of a pair of partition wall member engagement protrusions 150 is located between the first terminal 121 and the second terminal 122. The either partition wall member engagement protrusion 150 engages with a partition wall member 300 located between the first terminal 121 and the second terminal 122.

[0121] Another partition wall member engaging protrusion 150 of a pair of partition wall member engaging protrusions 150 is located between the second terminal 122 and the third terminal 123. The other partition wall member engaging protrusion 150 engages with the partition wall member 300 located between the second terminal 122 and the third terminal 123.

[0122] The number and arrangement of the partition wall components combined with the protrusions 150 can be changed according to the number and arrangement of the terminals 120 or the partition wall components 300.

[0123] The power supply unit 160 is electrically connected to the air supply assembly 200. The power supply unit 160 can provide the power and control signals required for the operation of the air supply assembly 200, specifically the air supply component 230.

[0124] The power supply unit 160 can be electrically connected to other components of the outer frame 100 to receive and transmit power and control signals. In another embodiment, the power supply unit 160 can be electrically connected to a circuit breaker body (not shown) integrated into the outer frame 100 to receive and transmit power and control signals.

[0125] A power supply unit 160 is arranged on the frame body 110. In the illustrated embodiment, the power supply unit 160 is located on one side, i.e., the upper side, in the height direction of the frame body 110.

[0126] The power supply unit 160 can be arranged opposite to the terminal block 120. Therefore, the power supply unit 160 does not directly receive heat generated at the terminal block 120, thereby preventing damage caused by the generated heat. In the illustrated embodiment, the power supply unit 160 is arranged on the rear side, opposite to the terminal block 120 located on the front side.

[0127] The power supply unit 160 and the air supply assembly 200 are electrically connected. In one embodiment, the connection can be achieved by an electric wire.

[0128] There may be a plurality of power supply units 160. Each of the plurality of power supply units 160 is electrically connected to a plurality of air supply components 230, thereby transmitting power and control signals. In this case, the plurality of power supply units 160 can transmit power and control signals to the plurality of air supply components 230 independently.

[0129] In the illustrated embodiment, the power supply unit 160 includes a first power supply unit 161, a second power supply unit 162, and a third power supply unit 163.

[0130] The first power supply unit 161 is electrically connected to the first air supply component 231 and transmits power and control signals. The first power supply unit 161 can be electrically connected to the first air supply component 231 in any manner. Figure 1 In the embodiment shown, the first power supply unit 161 is electrically connected to the first air supply component 231 via the first wire e1.

[0131] The second power supply unit 162 is electrically connected to the second air supply component 232 and transmits power and control signals. The second power supply unit 162 can be electrically connected to the second air supply component 232 in any manner. Figure 1 In the embodiment shown, the second power supply unit 162 is electrically connected to the second air supply component 232 via the second wire e2.

[0132] The third power supply unit 163 can be electrically connected to the third air supply component 233 and transmit power and control signals. The third power supply unit 163 can be electrically connected to the third air supply component 233 in any manner. Figure 1 In the embodiment shown, the third power supply unit 163 is electrically connected to the third air supply component 233 via the third wire e3.

[0133] The first power supply unit to the third power supply unit 161, 162, 163 can be electrically connected to the first air supply component to the third air supply component 231, 232, 233 via the first wire to the third wire e1, e2, e3, thereby allowing the first power supply unit to the third power supply unit 161, 162, 163 to independently transmit power and control signals to the first air supply component to the third air supply component 231, 232, 233.

[0134] Thus, the first air supply component to the third air supply component 231, 232, 233 are controlled independently of each other, so that the first terminal to the third terminal 121, 122, 123 can be cooled independently of each other.

[0135] The arrangement of the first power supply units to the third power supply units 161, 162, and 163 can be determined accordingly to the arrangement of the first air supply components to the third air supply components 231, 232, and 233. In the illustrated embodiment, the first power supply units to the third power supply units 161, 162, and 163 are arranged separately from each other along the separation direction of the first air supply components to the third air supply components 231, 232, and 233, that is, in the left-right direction. It can be understood that the direction is the width direction of the frame body 110.

[0136] As will be described later, the arrangement of the first air supply components to the third air supply components 231, 232, and 233 can be determined correspondingly to the arrangement of the first terminal blocks to the third terminal blocks 121, 122, and 123. Therefore, it can be considered that the arrangement of the first power supply unit to the third power supply unit 161, 162, and 263 can be determined correspondingly to the arrangement of the first terminal blocks to the third terminal blocks 121, 122, and 123.

[0137] The air supply assembly 200 generates a conveying force for facilitating the flow of fluid trapped inside or outside the circuit breaker 10. As described later, the air supply assembly 200 is located outside the terminal block 120, and therefore can be considered as primarily providing conveying force to fluid trapped inside the circuit breaker 10.

[0138] The fluid can be delivered by the conveying force provided by the air supply assembly 200 and discharged to the outside of the circuit breaker 10 after the cooling terminal 120.

[0139] The air supply assembly 200 can be electrically connected to the external frame 100 or the circuit breaker body (not shown). The power and control signals required for the operation of the air supply assembly 200 can be provided from the external frame 100 or the circuit breaker body (not shown).

[0140] As described above, the air supply assembly 200 is directly energized to the power supply unit 160 via wires e1, e2, and e3, thereby enabling energized connection to the external frame 100 or the circuit breaker body (not shown) via the power supply unit 160.

[0141] In another embodiment, the air supply assembly 200 can be directly electrically connected to an external control unit (not shown) and power supply (not shown). In the above embodiments, the power and control signals required for the operation of the air supply assembly 200 can be provided from the external control unit (not shown) and power supply (not shown).

[0142] The air supply assembly 200 is combined with the outer frame 100. Specifically, the air supply assembly 200 is combined with and supported by the air supply assembly support 130. The air supply assembly 200 is at least partially disposed and supported on the air supply assembly support 130, and another part of the air supply assembly 200 may be located outside the air supply assembly support 130.

[0143] At this time, the air supply assembly 200 can be arranged adjacent to the terminal block 120. In the illustrated embodiment, the air supply assembly 200 is placed and supported on a portion of the front side of the air supply assembly support portion 130, and the other portion is located on the upper side of the terminal block 120.

[0144] At this time, no additional configuration is required between the other part of the air supply assembly 200 and the terminal block 120. That is, a hollow space can be maintained between the other part of the air supply assembly 200 and the terminal block 120. As a result, the fluid flowing through the air supply assembly 200 can be discharged directly to the outside of the circuit breaker 10 after heat exchange with the terminal block 120.

[0145] The air supply assembly 200 is combined with the partition wall member 300. The air supply assembly 200 can support the partition wall member 300 from one side in the height direction, i.e., the upper side in the illustrated embodiment. The fluid flowing under the conveying force applied by the air supply assembly 200 flows through the partition wall member 300 along a predetermined space and is then discharged to the outside of the circuit breaker 10.

[0146] exist Figures 6 to 8 In the embodiment shown, the air supply assembly 200 includes an air supply body 210, a partition wall component connecting groove 220, and an air supply component 230.

[0147] The air supply body 210 forms the outer shape of the air supply assembly 200. The air supply body 210 is the part where the air supply assembly 200 is combined with the air supply assembly support 130 of the outer frame 100. Other components of the air supply assembly 200 can be formed in the air supply body 210. In addition, the air supply body 210 can be combined with and support other components of the air supply assembly 200.

[0148] In the illustrated embodiment, a partition wall component connecting groove 220 is formed in the air supply body 210, and an air supply component 230 is connected thereto.

[0149] The air supply body 210 is supported by the air supply assembly support 130. At this time, a part of the air supply body 210 can be supported by the air supply assembly support 130, and another part can be exposed to the outside of the air supply assembly support 130.

[0150] In the illustrated embodiment, one side of the air supply assembly support 130 in the width direction, i.e., the rear side, is supported by the air supply assembly support 130. The other side of the air supply assembly support 130 in the width direction, i.e., the front side, is exposed to the outside of the air supply assembly support 130.

[0151] A partition wall member engaging groove 220 is formed in the air supply body 210. The air supply body 210 can engage with and support the partition wall member 300 engaged in the partition wall member engaging groove 220. Specifically, the air supply body 210 is accommodated in the insertion space 333 of the air supply member engaging portion 330, and its thickness direction, i.e., the upper and lower sides, is supported by the placement protrusion 331 and the support protrusion 332.

[0152] The air supply body 210 is combined with the air supply component 230. The air supply body 210 can support the air supply component 230 and the power supply unit 160 to be energized. In the illustrated embodiment, the air supply body 210 is combined with the air supply component 230 on one side in the thickness direction, i.e., the lower side.

[0153] At this time, a groove or through hole may be formed in the portion of the air supply body 210 where the air supply component 230 is attached. The groove or through hole may be configured to allow fluid flowing from the lower to the upper side of the air supply component 230 to be discharged to the outside of the circuit breaker 10.

[0154] As described below, there are multiple air supply components 230, which can be arranged separately along the length of the air supply body 210. Therefore, the slots or through holes can also be formed in multiple ways, and arranged adjacent to the multiple air supply components 230 respectively. The multiple slots or through holes can form outflow channels for fluid flowing through the multiple air supply components 230.

[0155] The air supply body 210 can be of any shape, having a partition wall component connecting groove 220 formed therein, connecting with and supporting the air supply component 230, and capable of connecting with the air supply assembly support 130 and the partition wall component 300 respectively. In the illustrated embodiment, the air supply body 210 is a polygonal plate shape with a length in the left-right direction longer than its width in the front-back direction and a height in the vertical direction.

[0156] At this time, the length of the air supply body 210, that is, the length in the left-right direction, can be the same as the length of the air supply assembly support 130. In addition, the length of the air supply body 210 can be made to be longer than the distance from the first terminal to the third terminal 121, 122, 123.

[0157] In the above embodiments, one side of the air supply body 210 in the width direction, i.e., the outer side of the front side air supply assembly support 130 in the illustrated embodiment, is exposed and a partition wall member connecting groove 220 is formed therein. The other side of the air supply body 210 in the width direction, i.e., the rear side in the illustrated embodiment, is placed and supported on the air supply assembly support 130.

[0158] The partition wall component connecting groove 220 is the part where the air supply assembly 200 and the partition wall component 300 are joined. The partition wall component connecting groove 220 accommodates the partition wall body 310 disposed in the partition wall component 300. The partition wall component 300 accommodated in the partition wall component connecting groove 220 is joined to the air supply body 210 by the air supply component connecting part 330.

[0159] The partition wall component connecting groove 220 is formed in the air supply body 210. The partition wall component connecting groove 220 is formed on the side facing the terminal 120 in the width direction of each side of the air supply body 210, that is, the front side in the illustrated embodiment.

[0160] The partition wall component engaging groove 220 is recessed from the end of one side of the air supply body 210, i.e., the front end in the illustrated embodiment, toward the rear. In other words, the partition wall component engaging groove 220 is recessed along the width direction of the air supply body 210.

[0161] The partition wall component connecting groove 220 extends along the width direction of the air supply body 210, i.e., the front-to-back direction in the illustrated embodiment. One side of the extending direction of the partition wall component connecting groove 220, i.e., the front end in the illustrated embodiment, is open. The partition wall component 300 can be accommodated in the partition wall component connecting groove 220 through said side, i.e., the front side.

[0162] The other side of the extension direction of the partition wall member engaging groove 220, i.e., the rear end in the illustrated embodiment, is closed. The partition wall member 300 can be inserted into the partition wall member engaging groove 220 until its outer surface contacts the other side, i.e., the rear end.

[0163] The partition wall component connecting groove 220 is formed through the air supply body 210 along the thickness direction, that is, the vertical direction in the illustrated embodiment.

[0164] The partition wall component connecting groove 220 can be formed in a shape corresponding to the shape of the partition wall component 300. In the illustrated embodiment, the partition wall component connecting groove 220 extends a first length L1 in the front-back direction and a first width W1 in the left-right direction. That is, the horizontal cross-section of the partition wall component connecting groove 220 is formed as a quadrilateral with a length of the first length L1 in the front-back direction and a length of the first width W1 in the left-right direction.

[0165] At this time, the first length L1 can be a second length L2 or more, which is the length of the partition wall body 310. Additionally, the first width W1 can be a second width W2 or more, which is the width of the partition wall body 310.

[0166] Preferably, the first length L1 can be the same as the second length L2, and the first width W1 can be the same as the second width W2. In the above embodiment, it is possible to prevent the partition wall member 300, which is accommodated in the partition wall member connecting groove 220, from arbitrarily disengaging.

[0167] The partition wall component connecting groove 220 can be multiple. The multiple partition wall component connecting grooves 220 can be formed separately along the length direction of the air supply body 210, and can be connected to several partition wall components 300 respectively.

[0168] In the illustrated embodiment, the partition wall component connecting groove 220 includes a first partition wall component connecting groove 221 and a second partition wall component connecting groove 222.

[0169] The first partition wall component engaging groove 221 engages with the first partition wall component 300a. The first partition wall component engaging groove 221 is biased towards one side of the length direction of the air supply body 210, that is, the left side in the illustrated embodiment. If the air supply assembly 200 is engaged with the outer frame 100, the first partition wall component engaging groove 221 can be located between the first terminal 121 and the second terminal 122 along the length direction of the air supply body 210.

[0170] Therefore, the first partition wall member 300a, which is coupled to the first partition wall member coupling groove 221, can be located between the upper side of the first terminal 121 and the upper side of the second terminal 122. This prevents the fluid cooling the first terminal 121 and the fluid cooling the second terminal 122 from mixing arbitrarily inside the circuit breaker 10.

[0171] The second partition wall component engaging groove 222 engages with the second partition wall component 300b. The second partition wall component engaging groove 222 is biased towards the other side of the length direction of the air supply body 210, that is, the right side in the illustrated embodiment. If the air supply assembly 200 is engaged with the outer frame 100, the second partition wall component engaging groove 222 can be located between the second terminal 122 and the third terminal 123 along the length direction of the air supply body 210.

[0172] Therefore, the second partition wall member 300b, which is coupled to the second partition wall member coupling groove 222, can be located between the upper side of the second terminal 122 and the upper side of the third terminal 123. This also prevents the fluid cooling the second terminal 122 and the fluid cooling the third terminal 123 from mixing arbitrarily inside the circuit breaker 10.

[0173] The air supply component 230 essentially performs the function of generating a conveying force for facilitating the flow of fluid retained inside or outside the circuit breaker 10. The fluid flows under the conveying force provided by the air supply component 230, thereby allowing it to flow outwards from the circuit breaker 10 after cooling the terminal block 120.

[0174] The air supply component 230 can be electrically connected to the external frame 100 or the circuit breaker body (not shown). The power and control signals required for the operation of the air supply component 230 can be provided from the external frame 100 or the circuit breaker body (not shown). In one embodiment, as described above, the air supply component 230 is electrically connected to the power supply unit 160 via wires e1, e2, e3, thereby enabling it to receive power and control signals.

[0175] The air supply component 230 can be any form that provides delivery force to fluid retained inside the outer frame 100 and flows to the outside of the outer frame 100 after passing through the terminal block 120. In one embodiment, the air supply component 230 can be in the form of a suction component for drawing in fluid.

[0176] In the above embodiments, the air supply component 230 may be in the form of a fan including a plurality of blades.

[0177] Specifically, in embodiments where the air supply member 230 is in the form of an intake member, the air supply member 230 can draw in retained fluid from inside or outside the outer frame 100. The fluid drawn in by the air supply member 230 can exchange heat with the terminal block 120 and, after cooling the terminal block 120, flow in the direction toward the air supply member 230, i.e., from bottom to top in the illustrated embodiment.

[0178] That is, it can be understood that the flow of fluid formed by the air supply component 230 can pass sequentially from the inside or outside of the outer frame 100 through the lower terminal 120 and the upper terminal 120 and be formed in the direction toward the air supply component 230.

[0179] The air supply component 230 is combined with the air supply body 210. The air supply component 230 is combined with one side of the air supply body 210 in the thickness direction, that is, the lower side in the illustrated embodiment. In other words, the air supply component 230 is located on the side of the air supply body 210 facing the terminal 120, that is, the bottom surface.

[0180] As described above, the portion of the air supply body 210 in which the air supply member 230 is incorporated may have a groove or through-hole for discharging the fluid transported by the air supply member 230. Therefore, fluid moving from the lower to the upper side can be discharged to the outside of the circuit breaker 10 through the groove or through-hole formed inside the air supply body 210 and the air supply member 230.

[0181] Thus, the air supply component 230 can apply a conveying force, i.e. suction force, from the bottom to the top to the fluid trapped inside or outside the outer frame 100.

[0182] At this time, the air supply component 230 can be located on the side facing the terminal 120 in the width direction of the air supply body 210, i.e., the front side in the illustrated embodiment. As described above, the partition wall component connecting groove 220 is also located on the side facing the terminal 120 in the width direction of the air supply body 210. Therefore, it can be considered that the air supply component 230 and the partition wall component connecting groove 220 are arranged adjacent to each other.

[0183] There may be a plurality of air supply components 230. The plurality of air supply components 230 may be arranged in different positions above the plurality of terminals 120. In the illustrated embodiment, the air supply components 230 include a first air supply component 231, a second air supply component 232, and a third air supply component 233, thus having three components.

[0184] The first air supply component 231 is located on one side of the length direction of the air supply body 210, i.e., the left side in the illustrated embodiment. The first air supply component 231 is disposed above the first terminal 121 located on the left side, thereby applying a suction force to the fluid stagnating in or near the first terminal 121.

[0185] The second air supply component 232 is located in the middle part of the air supply body 210 along its length. The second air supply component 232 is located between the first air supply component 231 and the third air supply component 233. The second air supply component 232 is disposed above the second terminal 122 located in the central part, thereby applying a suction force to the fluid stagnating in or near the second terminal 122.

[0186] The third air supply component 233 is located on the other side of the length direction of the air supply body 210, i.e., the right side in the illustrated embodiment. The third air supply component 233 is disposed above the third terminal 123 located on the right side, thereby applying a suction force to the fluid stagnating in or near the third terminal 123.

[0187] The first to the third air supply components 231, 232, and 233 can operate independently of each other. In other words, the first to the third air supply components 231, 232, and 233 can operate to provide the same or different magnitudes of conveying force simultaneously or at different times.

[0188] Therefore, the cooling effect of the first terminal to the third terminals 121, 122, and 123 can be independently formed as needed. This improves the cooling efficiency of terminal 120.

[0189] At this time, the plurality of partition wall component connecting grooves 220 and the plurality of air supply components 230 are arranged alternately along the length of the air supply body 210. That is, along the length of the air supply body 210, i.e., the left-right direction in the illustrated embodiment, the first air supply component 231, the first partition wall component connecting groove 221, the second air supply component 232, the second partition wall component connecting groove 222, and the third air supply component 233 are arranged sequentially.

[0190] Therefore, the fluids flowing under the conveying force applied by the first air supply member 231 and the second air supply member 232 will not be arbitrarily mixed inside the circuit breaker 10 by the first partition wall member 300a. Furthermore, the fluids flowing under the conveying force applied by the second air supply member 232 and the third air supply member 233 will not be arbitrarily mixed inside the circuit breaker 10 by the second partition wall member 300b.

[0191] Therefore, the fluid can flow smoothly and cool the terminal 120. The preheated fluid, that is, the fluid that has cooled the terminal 120, does not flow to other terminal 120, thus improving the cooling efficiency of the terminal 120.

[0192] The partition wall member 300 is configured to prevent fluid cooling one of the plurality of terminals 120 from mixing with other fluids inside the circuit breaker 10. The partition wall member 300 is located between the plurality of terminals 120 or the plurality of air supply members 230. The partition wall member 300 physically separates the spaces in which fluid flows toward each terminal 121, 122, 123 or each air supply member 231, 232, 233.

[0193] The partition wall component 300 is combined with the outer frame 100. Specifically, one side of the partition wall component 300 in the height direction, i.e. the lower side in the illustrated embodiment, is combined with the partition wall component combination protrusion 150 and supported by the partition wall component support 140.

[0194] The partition wall component 300 is combined with the air supply assembly 200. The other side of the partition wall component 300 in the height direction, i.e. the upper side in the illustrated embodiment, is inserted into the partition wall component coupling groove 220 and supports the air supply body 210.

[0195] The partition member 300 may be formed of a highly heat-resistant and electrically insulating material. This is to prevent damage caused by heat generated at the terminal 120 and to prevent arbitrary energization with other components of the circuit breaker 10. In one embodiment, the partition member 300 may be formed of a synthetic resin material.

[0196] There may be a plurality of partition wall members 300. The plurality of partition wall members 300 may be separated from each other, thereby engaging with a plurality of partition wall member engaging protrusions 150 and a plurality of partition wall member engaging grooves 220 respectively. The plurality of partition wall members 300 may be located between a plurality of terminals 120 along the width direction of the frame body 110, i.e., the left-right direction in the illustrated embodiment.

[0197] In the illustrated embodiment, the partition wall member 300 includes a first partition wall member 300a and a second partition wall member 300b, and has a pair.

[0198] The first partition wall component 300a is inserted into the first partition wall component mating groove 221 located on the left side, between the first terminal 121 and the second terminal 122 or between the first air supply component 231 and the second air supply component 232. The first partition wall component 300a physically separates the space between the first terminal 121 and the first air supply component 231, as well as the space between the second terminal 122 and the second air supply component 232.

[0199] The second partition wall component 300b is inserted into the second partition wall component mating groove 222 located on the right side, between the second terminal 122 and the third terminal 123 or between the second air supply component 232 and the third air supply component 233. The second partition wall component 300b physically separates the space between the second terminal 122 and the second air supply component 232, as well as the space between the third terminal 123 and the third air supply component 233.

[0200] The first partition wall component 300a and the second partition wall component 300b are arranged facing each other across the second terminal block 122 or the second air supply component 232.

[0201] The first partition wall component 300a and the second partition wall component 300b differ in their arrangement, but have the same structure and function. Therefore, in the following common content, the first partition wall component 300a and the second partition wall component 300b will be collectively referred to as partition wall component 300.

[0202] exist Figures 9 to 12 In the embodiment shown, the partition wall component 300 includes a partition wall body 310, a partition wall hollow 320, and an air supply component joint 330.

[0203] The partition wall body 310 constitutes the main body of the partition wall component 300. The partition wall body 310 is the part where the partition wall component 300 is combined with the outer frame 100 and the air supply assembly 200. One side of the partition wall body 310 in the height direction, i.e., the lower side in the illustrated embodiment, is combined with the partition wall component engaging protrusion 150 of the outer frame 100 and is supported by the partition wall component support portion 140. The other side of the partition wall body 310 in the height direction, i.e., the upper side in the illustrated embodiment, is received in the partition wall component engaging groove 220 and is supported by the air supply body 210.

[0204] The partition wall body 310 extends between the partition wall component support 140 and the air supply assembly 200. In the illustrated embodiment, the partition wall body 310 extends in the vertical direction.

[0205] A partition wall hollow 320 is formed inside the partition wall body 310. The partition wall body 310 at least partially surrounds the partition wall hollow 320. In the illustrated embodiment, the partition wall body 310 surrounds each side of the partition wall hollow 320 in the width direction, namely the left and right sides, and one side in the length direction, namely the front side.

[0206] The partition wall body 310 is joined to the air supply component joint 330. The partition wall body 310 can be joined to the air supply body 210 using the air supply component joint 330 as a medium. In the illustrated embodiment, the air supply component joint 330 is provided on the outer surface of the partition wall body 310 on one side in the height direction, that is, the upper side.

[0207] The partition wall body 310 can be coupled to the partition wall component connecting protrusion 150, supported by the partition wall component support 140, and can be accommodated in any shape within the partition wall component connecting groove 220. In the illustrated embodiment, the partition wall body 310 is formed as a quadrilateral cross-section with a length in the left-right direction equal to the second width W2, a length in the front-back direction equal to the second length L2, and a height in the vertical direction.

[0208] As described above, the second width W2 can be less than or equal to the first width W1. Furthermore, the second length L2 can be less than or equal to the first length L1. Therefore, the partition wall body 310 can be inserted into and joined to the partition wall member joining groove 220. Additionally, in the above embodiment, the width of the partition wall member joining protrusion 150, i.e., its length in the left-right direction, can be less than or equal to the second width W2.

[0209] Furthermore, the height of the partition wall body 310 can be greater than or equal to the shortest distance between the partition wall member support 140 and the air supply body 210. Therefore, the partition wall body 310, while supported by the partition wall member support 140 and inserted into the partition wall member mating groove 220, can at least partially protrude above the air supply body 210. As a result, the air supply member mating portion 330 located above the partition wall body 310 can be mated with the air supply body 210.

[0210] The space formed inside the partition wall body 310 is defined as the partition wall hollow 320.

[0211] The partition wall hollow 320 is a space formed inside the partition wall body 310. The partition wall hollow 320 is at least partially surrounded and defined by the partition wall body 310. In the illustrated embodiment, the partition wall hollow 320 is surrounded and defined by the front side, left side, and right side of the partition wall body 310.

[0212] The hollow partition wall 320 can be shaped to correspond to the shape of the partition wall body 310. In the illustrated embodiment, the hollow partition wall 320 is formed as a polygonal prism-shaped space with a width in the left-right direction longer than its length in the front-back direction and a height in the vertical direction.

[0213] At this point, it can be understood that the width of the hollow partition wall 320 is less than the second width W2, and the length of the hollow partition wall 320 is less than the second length L2.

[0214] Because the partition wall 320 is formed, the overall weight of the partition wall member 300 can be reduced. As a result, the partition wall member 300 can be installed easily, and even when the partition wall member 300 is installed, the increase in the overall weight of the circuit breaker 10 can be minimized.

[0215] One side of the hollow partition wall 320 along its length, i.e., the rear side in the illustrated embodiment, is open. That is, the partition wall member 300 is inserted into the partition wall member mating groove 220 on one side of each side of the hollow partition wall 320.

[0216] Therefore, when the partition wall component 300 is inserted into the partition wall component mating groove 220, it can be easily inserted into the partition wall component mating groove 220 when the distance between the two opposite sides located on the rear side of the partition wall body 310 is reduced. Furthermore, once the insertion of the partition wall component 300 is complete, the two opposite sides separate and return to their initial shape, and the partition wall component 300 can be supported by the air supply body 210.

[0217] Furthermore, since the rear side of the hollow partition wall 320 is open, the partition wall member 300 can engage with the partition wall member engagement protrusion 150 in both the height and length directions. Therefore, the partition wall member 300 can move horizontally, thereby enabling it to engage with both the outer frame 100 and the air supply assembly 200 simultaneously.

[0218] The hollow partition wall 320 is open on each side in the height direction, i.e., the upper and lower sides in the illustrated embodiment. At this time, a partition wall member connecting protrusion 150 is accommodated on one side of the hollow partition wall 320 in the height direction, i.e., the lower side in the illustrated embodiment. The partition wall member connecting protrusion 150 can be supported by the surface of the partition wall body 310 surrounding the hollow partition wall 320.

[0219] The air supply component joint 330 forms another part of the connection between the partition wall component 300 and the air supply assembly 200. The air supply component joint 330 at least partially accommodates and supports the air supply body 210.

[0220] The air supply component joint 330 is joined to the partition wall body 310. The air supply component joint 330 is located on one side of the partition wall body 310 in the height direction, that is, the upper end in the illustrated embodiment.

[0221] The air supply component joint 330 extends along the outer periphery of the partition wall body 310. In the illustrated embodiment, the air supply component joint 330 is formed on the outer periphery of the partition wall body 310 in both the front-back and left-right directions.

[0222] The air supply component joint 330 is combined with and supports the air supply body 210. Specifically, the air supply component joint 330 can accommodate a portion of the air supply body 210 that surrounds the partition wall component joint groove 220 and support said portion in the thickness direction of the air supply body 210.

[0223] Therefore, in the illustrated embodiment, the air supply component joint 330 includes a placement protrusion 331, a support protrusion 332, and an insertion space 333.

[0224] The mounting protrusion 331 supports the air supply body 210 from one side in its thickness direction, i.e., the upper side in the illustrated embodiment. The mounting protrusion 331 extends along the corner of the upper end of the partition wall body 310. In the illustrated embodiment, the mounting protrusion 331 is composed of a pair of portions extending in the front-rear direction. The mounting protrusion 331 is formed protruding from the outer surface of the partition wall body 310 in the width direction, i.e., the left-right direction.

[0225] The protrusion 331 surrounds the portion of the air supply body 210 from one side in the thickness direction, i.e., the upper side in the illustrated embodiment. In one embodiment, the protrusion 331 may be disposed on the upper side of the portion of the air supply body 210.

[0226] The support protrusion 332 supports the air supply body 210 from the other side in its thickness direction, i.e., the lower side in the illustrated embodiment. The support protrusion 332 extends downwards from the upper end of the partition wall body 310 by a predetermined distance, along the outer surface of the partition wall body 310. In the illustrated embodiment, the support protrusion 332 comprises a pair of portions extending in the front-rear direction. The support protrusion 332 protrudes in the width direction, i.e., the left-right direction, from the outer surface of the partition wall body 310.

[0227] In one embodiment, the shape of the support protrusion 332 may be formed corresponding to the shape of the placement protrusion 331.

[0228] The support protrusion 332 supports the portion of the air supply body 210 from the other side in the thickness direction, i.e., the lower side in the illustrated embodiment. In one embodiment, the portion of the air supply body 210 may be positioned on the support protrusion 332.

[0229] The support protrusion 332 is positioned relative to the placement protrusion 331 along the height direction of the partition wall body 310, i.e., the vertical direction in the illustrated embodiment. The space formed between the support protrusion 332 and the placement protrusion 331 can be defined as the insertion space 333.

[0230] The insertion space 333 is the space in which the air supply component joint 330 accommodates the air supply body 210. The insertion space 333 is formed by separating the placement protrusion 331 and the support protrusion 332 in the vertical direction. In other words, the insertion space 333 is the space formed between the placement protrusion 331 and the support protrusion 332.

[0231] Along the direction from the upper side to the lower side of the partition wall body 310, a protrusion 331, an insertion space 333, and a supporting protrusion 332 are arranged sequentially. The protrusion 331 and the supporting protrusion 332 are arranged facing each other across the insertion space 333 along the height direction of the partition wall body 310, that is, the vertical direction in the illustrated embodiment.

[0232] The insertion space 333 receives the inner periphery of the portion of the air supply body 210 that surrounds the partition wall member connecting groove 220. The insertion space 333 may have a shape corresponding to the shape of the inner periphery of the portion of the air supply body 210. In the illustrated embodiment, the insertion space 333 is formed by a pair of portions extending in the front-rear direction.

[0233] At this time, each side of the extension direction of the insertion space 333, i.e. the front side and the rear side in the illustrated embodiment, are opened. The inner periphery of the portion of the air supply body 210 can be introduced into the insertion space 333 through one side of the extension direction of the insertion space 333, i.e. the rear side in the illustrated embodiment.

[0234] The insertion space 333 can be formed to have a predetermined height, namely, the vertical length in the illustrated embodiment. In one embodiment, the insertion space 333 can be formed to have a height greater than or equal to the thickness of the air supply body 210.

[0235] The width of the insertion space 333, i.e. the length in the left-right direction in the illustrated embodiment, can be determined accordingly to the protrusion length of the placement protrusion 331 and the support protrusion 332.

[0236] Reference Figures 13 to 15 The combination structure of each component of the circuit breaker 10 in this embodiment of the invention is shown as an example.

[0237] Reference Figure 13 The outer frame 100 is combined with and supports the partition wall member 300. Additionally, the outer frame 100 is combined with and supports the air supply assembly 200. Furthermore, the air supply assembly 200 and the partition wall member 300 are combined with and support each other.

[0238] In this state, the first air supply component 231 is electrically connected to the first power supply unit 161 via the first wire e1. The first air supply component 231 is located above the first terminal 121 and applies a conveying force from the bottom to the top to the fluid stagnating in or near the first terminal 121.

[0239] The second air supply component 232 is electrically connected to the second power supply unit 162 via the second wire e2. The second air supply component 232 is located above the second terminal 122, thereby applying a conveying force from the bottom to the top to the fluid stagnating in or near the second terminal 122.

[0240] The third air supply component 233 is electrically connected to the third power supply unit 163 via the third wire e3. The third air supply component 233 is located above the third terminal 123, thereby applying a conveying force from the bottom to the top to the fluid stagnating in or near the third terminal 123.

[0241] Reference Figure 14 This shows the state in which the spaces between the individual terminals 121, 122, 123 and the individual air supply components 231, 232, 233 are physically separated by the partition wall component 300.

[0242] That is, the second partition wall member 300b extends between the partition wall member support 140 and the air supply body 210. Thus, the second partition wall member 300b can physically separate the space between the second terminal 122 and the second air supply member 232, and the space between the third terminal 123 and the third air supply member 233. This prevents the fluid cooling the second terminal 122 and the fluid cooling the third terminal 123 from flowing back into the circuit breaker 10 or from mixing arbitrarily inside the circuit breaker 10.

[0243] Although not shown in a separate enlarged view, the first partition wall member 300a can also physically separate the space between the first terminal 121 and the first air supply member 231, and the space between the second terminal 122 and the second air supply member 232. This prevents the fluid cooling the first terminal 121 and the fluid cooling the second terminal 122 from flowing back into the circuit breaker 10 or from mixing arbitrarily inside the circuit breaker 10.

[0244] As a result, due to the partition wall member 300, the heat generated at each terminal 121, 122, 123 can be exchanged with the fluid flowing under the conveying force applied by each air supply member 231, 232, 233. Therefore, each terminal 121, 122, 123 can be cooled independently of each other, thereby improving cooling efficiency.

[0245] Reference Figure 15 The process of heat dissipation generated in the circuit breaker 10 in this embodiment of the invention is illustrated as an example.

[0246] When the circuit breaker 10 operates, a pair of terminals 120 arranged vertically generate heat. If the air supply member 230 located above the terminals 120 operates, a conveying force is applied to the fluid inside the circuit breaker 10. The fluid can flow in the direction toward the air supply member 230, exchange heat with the terminals 120, and cool the terminals 120.

[0247] Considering that the direction of heat movement is from bottom to top, the cooling efficiency of the terminal block 120 can be improved because the air supply component 230 forms a conveying force from bottom to top.

[0248] Furthermore, in embodiments having a plurality of terminals 121, 122, 123, there are also a plurality of air supply components 231, 232, 233, which can respectively cool the plurality of terminals 121, 122, 123. Moreover, the space between the plurality of terminals 121, 122, 123 and the plurality of air supply components 231, 232, 233 is physically separated by a plurality of partition wall components 300a, 300b.

[0249] Therefore, each terminal 121, 122, and 123 is cooled independently, and the fluid exchanged with each terminal 121, 122, and 123 does not flow backwards. As a result, the cooling efficiency of terminal 120 can be improved.

[0250] While an embodiment of the present invention has been described above, the technical concept of the present invention is not limited to the embodiment described in this specification. Those skilled in the art who understand the technical concept of the present invention can easily propose other implementation schemes within the same scope of the concept by adding, modifying, deleting or supplementing constituent elements, and these changes should also be considered to fall within the protection scope of the present invention.

[0251] 10: Circuit breaker 100: External frame

[0252] 110: Frame body; 120: Terminal block

[0253] 121: First terminal block; 122: Second terminal block

[0254] 123: Third terminal block; 130: Air supply assembly support.

[0255] 140: Partition wall component support portion; 150: Partition wall component connecting protrusion.

[0256] 160: Power Supply Department 161: First Power Supply Department

[0257] 162: Second Power Supply Department 163: Third Power Supply Department

[0258] 200: Air supply assembly; 210: Air supply main body

[0259] 220: Partition wall component joint groove; 221: First partition wall component joint groove

[0260] 222: Second partition wall component connecting groove; 230: Air supply component

[0261] 231: First air supply component; 232: Second air supply component

[0262] 233: Third air supply component; 300: Partition wall component

[0263] 300a: First partition wall component; 300b: Second partition wall component

[0264] 310: Main body of the partition wall; 320: Hollow partition wall

[0265] 330: Joint of air supply component 331: Installation of protrusion

[0266] 332: Support protrusion; 333: Insertion space

[0267] W1: First width W2: Second width

[0268] L1: First length L2: Second length

Claims

1. A circuit breaker, wherein, include: The external frame forms the shape; as well as An air supply assembly is located on one side of the height direction of the outer frame and is configured to draw in fluid that is retained on the lower side of the air supply assembly. The external framework includes: An air supply assembly support, located on one side of the outer frame in the height direction, supports the air supply assembly; and The wiring terminals are arranged on one side of the outer frame along its length, with at least a portion exposed to the outside, and are electrically connected to the outside. The air supply assembly includes: The air supply body is combined with the support part of the air supply assembly; and An air supply component, located on the side of the air supply body facing the terminal block, applies a delivery force to the fluid.

2. The circuit breaker according to claim 1, wherein, The air supply component is located above the terminal block and is configured to provide the fluid with a conveying force from the bottom to the top.

3. The circuit breaker according to claim 1, wherein, The outer frame includes a power supply unit located on one side of the outer frame in the height direction, exposed to the outside, and configured to be electrically connected to the air supply component and provide power and control signals.

4. The circuit breaker according to claim 3, wherein, The power supply unit is arranged on the opposite side of the length direction of the outer frame, opposite to the wiring terminals.

5. The circuit breaker according to claim 1, wherein, The terminal blocks are a plurality of each other, and the plurality of terminal blocks are arranged separately from each other along the width direction of the outer frame; The air supply components are a plurality of each other, and the plurality of air supply components are arranged separately from each other along the length direction of the air supply body, and are respectively located on the upper side of the plurality of wiring terminals.

6. The circuit breaker according to claim 5, wherein, The plurality of the aforementioned air supply components are configured to operate independently of each other.

7. The circuit breaker according to claim 5, wherein, It includes a partition wall component, which is combined with and supported by the outer frame and combined with the air supply body to form a space separating the plurality of the wiring terminals and the plurality of the air supply components.

8. The circuit breaker according to claim 7, wherein, The air supply assembly includes a partition wall component connecting groove, which is recessed from one side of the air supply body toward the wiring terminal to the other side. The partition wall component includes a partition wall body that extends along the height direction of the outer frame. One side of the extension direction of the partition wall body is accommodated in the partition wall component coupling groove, and the other side of the extension direction of the partition wall body is coupled to and supported by the outer frame.

9. The circuit breaker according to claim 8, wherein, The partition wall component has a plurality of grooves, each accommodating a plurality of the partition wall components; The plurality of air supply components and the plurality of partition wall components are arranged alternately and separately from each other along the length of the air supply body.

10. The circuit breaker according to claim 9, wherein, The terminal blocks include a first terminal block, a second terminal block, and a third terminal block, which are arranged separately along the width of the outer frame and are respectively energized with current of different phases. The air supply component includes a first air supply component, a second air supply component, and a third air supply component that are arranged separately along the length of the air supply body and are located above the first terminal, the second terminal, and the third terminal. The partition wall component includes: A first partition wall separates the space between the first wiring terminal and the first air supply component and the space between the second wiring terminal and the second air supply component; and The second partition wall component is arranged separately from the first partition wall component, separating the space between the second wiring terminal and the second air supply component and the space between the third wiring terminal and the third air supply component.

11. The circuit breaker according to claim 8, wherein, The partition wall component includes a hollow partition wall, which is surrounded and defined by the partition wall body, and is open on the side opposite to the wiring terminal.

12. The circuit breaker according to claim 11, wherein, The external framework includes: A partition wall component support extends along the width direction of the outer frame, supporting the other side of the partition wall body; and The partition wall component has a protrusion that protrudes from one side of the partition wall component support in the height direction and is inserted into the hollow partition wall.

13. The circuit breaker according to claim 8, wherein, The partition wall component includes an air supply component joint, which is formed on the outer side of one side of the partition wall body and engages with a portion of the air supply body that surrounds the partition wall component joint groove.

14. The circuit breaker according to claim 13, wherein, The air supply component joint includes: A protrusion is provided, protruding outward from the main body of the partition wall, to support the portion of the air supply body from one side in the height direction; A supporting protrusion, separated from the mounting protrusion along the height direction, protrudes outward from the side of the partition wall body, supporting the portion of the air supply body from the other side in the height direction; and An insertion space is formed between the placement protrusion and the support protrusion to accommodate a portion of the air supply body.

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