Circuit breaker

Abstract

The utility model provides a breaker comprising a housing and an isolation structure, one side surface of the housing is provided with a plurality of wiring holes and a chute arranged between two adjacent wiring holes, the chute extends along the height direction of the housing, and the isolation structure is arranged between two adjacent wiring holes. The isolation structure comprises a guide column and a partition plate arranged on the guide column, at least one part of the guide column is arranged in the sliding groove in a sliding mode, and at least one part of the partition plate protrudes out of the sliding groove and is arranged between the two wiring holes. According to the circuit breaker provided by the utility model, the isolation structure is arranged, so that the problem that the risk of interphase breakdown is easy to occur in the use process of the circuit breaker in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field related to electrical switch devices, and in particular to a circuit breaker. Background Art

[0002] Miniature circuit breakers are essential for electrical and personal safety in both homes and industries. Conventional circuit breakers are generally available in four types: 1P, 2P, 3P, and 4P. For multi-pole circuit breakers, or when multiple 1P circuit breakers are combined, the external wires are relatively close together. During installation, these wires must be stripped to a certain length before being inserted through the wire holes and connected to the terminals inside the housing. Therefore, during actual installation and wiring, there is a risk of phase breakdown between the stripped areas of adjacent external wires.

[0003] As can be seen from the above, current circuit breakers have the risk of phase breakdown during use. Utility Model Content

[0004] The main purpose of the utility model is to provide a circuit breaker to solve the problem in the prior art that the circuit breaker is prone to the risk of phase breakdown during use.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a circuit breaker is provided, which includes a housing, a side surface of the housing having a plurality of wiring holes and a slide groove arranged between two adjacent wiring holes, and the slide groove extends along the height direction of the housing; an isolation structure, the isolation structure is arranged between two adjacent wiring holes, the isolation structure includes a guide column and a partition arranged on the guide column, at least a portion of the guide column is slidably arranged inside the slide groove, and at least a portion of the partition protrudes from the slide groove and is arranged between the two wiring holes.

[0006] Furthermore, a line connecting two adjacent wiring holes is arranged at an angle to a partition located between the two wiring holes.

[0007] Furthermore, a line connecting two adjacent wiring holes is perpendicular to the partition between the two wiring holes.

[0008] Furthermore, the guide column has a limiter arranged on one side of the partition along the height direction of the shell. The shell has a through hole, and the limiter is arranged inside the through hole. The end face of the limiter away from the partition abuts against the inner wall surface of the through hole.

[0009] Furthermore, multiple wiring holes are arranged collinearly along the first direction, and the limit members are symmetrically arranged on both sides of the guide column along the first direction. The first ends of the two limit members are connected to the guide column along the height direction of the shell to form an angle, and the second ends of the limit members extend in the direction away from the partition to form an opening structure.

[0010] Furthermore, one of the end faces of the shell along the height direction also has a mounting hole for fixing the wire, which corresponds one-to-one with the wiring hole. The isolation structure also includes a connecting rod, one end of the connecting rod is connected to the guide column; a cover body, the other end of the connecting rod is connected to the cover body, the cover body corresponds one-to-one with the mounting hole, and at least a portion of the cover body can be detachably arranged inside the mounting hole to block or expose the mounting hole.

[0011] Furthermore, the connecting rod includes a plurality of arm segments, and the guide column is connected to the cover body through the plurality of arm segments.

[0012] Furthermore, two arm segments are provided, one of which is the first arm segment and the other is the second arm segment, the first arm segment is connected to the guide column, the second arm segment is connected to the cover body, the first arm segment and the second arm segment are vertically arranged, and the first arm segment and the second arm segment are formed into a T-shaped structure; and / or the first arm segment and the second arm segment are fitted with the end surface of the outer shell.

[0013] Furthermore, a positioning protrusion is provided on the cover body, and the shell has a mounting cavity connected to the mounting hole. When the cover body blocks the mounting hole, the positioning protrusion is located inside the mounting cavity and abuts against the inner wall surface of the mounting cavity.

[0014] Furthermore, there are multiple positioning protrusions, which are spaced apart along the circumference of the cover body; and / or there are multiple positioning protrusions, which are spaced apart along the height direction of the cover body; and / or the positioning protrusion is formed into an inverted structure in which the distance between the end away from the partition and the axis of the cover body is greater than the distance between the end close to the partition and the axis of the cover body, and the end of the positioning protrusion away from the partition has an abutting surface that abuts against the inner wall surface of the mounting cavity.

[0015] Applying the technical solution of the present utility model, the circuit breaker includes a shell and an isolation structure. One side of the shell has multiple wiring holes and a slide groove arranged between two adjacent wiring holes. The slide groove extends along the height direction of the shell. The isolation structure is arranged between two adjacent wiring holes. The isolation structure includes a guide column and a partition arranged on the guide column. At least a portion of the guide column is slidably arranged inside the slide groove. At least a portion of the partition protrudes from the slide groove and is arranged between the two wiring holes.

[0016] From the above, it can be seen that the circuit breaker of the present application adopts an isolation structure set between two adjacent wiring holes, and the two wiring holes are separated by the partition on the isolation structure, thereby avoiding the occurrence of short circuit caused by phase breakdown. At the same time, the circuit breaker of the present application adopts a guide column sliding setting on the outer casing. The sliding setting structure not only facilitates installation and improves installation efficiency, but also has a guiding and limiting function, avoiding the problems of shaking and installation offset of the isolation structure, and ensuring the installation accuracy and stability of the isolation structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 Shows a schematic diagram of the three-dimensional structure of the circuit breaker of the present utility model;

[0019] Figure 2 A schematic diagram of the three-dimensional structure of the housing of the circuit breaker of the present invention is shown;

[0020] Figure 3 A schematic diagram of the three-dimensional structure of the isolation structure of the present invention is shown;

[0021] Figure 4 A cross-sectional view showing the installation of the cover and the housing of the present invention is shown;

[0022] Figure 5 A side view of the circuit breaker of the present invention is shown.

[0023] The above drawings include the following reference numerals:

[0024] 10. Housing; 110. Wiring hole; 120. Slide groove; 130. Through hole; 140. Mounting hole; 150. Mounting cavity; 20. Isolation structure; 210. Guide column; 220. Partition; 230. Limiting member; 240. Connecting rod; 241. First arm section; 242. Second arm section; 250. Cover; 260. Positioning protrusion. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0026] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0027] In the present invention, unless otherwise specified, directional words such as "up, down, top, bottom" are usually used with reference to the directions shown in the drawings, or with reference to the components themselves in the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above directional words are not used to limit the present invention.

[0028] To address the risk of interphase breakdown during use in conventional circuit breakers, the present invention provides a circuit breaker. In this embodiment, the circuit breaker is a multi-stage circuit breaker or a combination of multiple 1P circuit breakers. The circuit breaker in this embodiment is widely used in both household and industrial applications.

[0029] like Figures 1 to 5 As shown, the circuit breaker includes a housing 10 and an isolation structure 20. One side of the housing 10 has a plurality of wiring holes 110 and a slide 120 arranged between two adjacent wiring holes 110. The slide 120 extends along the height direction of the housing 10. The isolation structure 20 is arranged between two adjacent wiring holes 110. The isolation structure 20 includes a guide column 210 and a partition 220 arranged on the guide column 210. At least a portion of the guide column 210 is slidably arranged inside the slide 120. At least a portion of the partition 220 protrudes from the slide 120 and is arranged between the two wiring holes 110.

[0030] The explanation is that since there is current in both adjacent wires, phase-to-phase breakdown is likely to occur in the stripped area, leading to a short circuit, which in turn poses the risk of causing the fuse to burn out.

[0031] Specifically, the circuit breaker of this embodiment adopts an isolation structure 20 set between two adjacent wiring holes 110, and the two wiring holes 110 are isolated by the partition 220 on the isolation structure 20, thereby avoiding the occurrence of short circuit caused by phase breakdown. At the same time, the circuit breaker of this application adopts a guide column 210 slidingly set on the housing 10. The sliding structure not only facilitates installation and improves installation efficiency, but also has a guiding and limiting function, avoiding the problems of shaking and installation offset of the isolation structure 20, and ensuring the installation accuracy and stability of the isolation structure 20.

[0032] The protruding length of the partition 220 can be adaptively adjusted according to actual needs, so as to partially shield the stripped portion of the external wire, thereby avoiding the risk of phase breakdown.

[0033] In this embodiment, the isolation structure 20 can be made of plastic, rubber, or flame-retardant insulating material.

[0034] Furthermore, along the height direction of the shell 10, the extension length of the guide column 210 is roughly equal to the extension length of the slide groove 120, so that the guide column 210 can cover the slide groove 120 when the isolation structure 20 is installed on the shell 10. It is also beneficial to improve the stability of the installation of the isolation structure 20 and avoid the guide column 210 shaking in the slide groove 120.

[0035] In this embodiment, a plurality of wiring holes 110 are collinearly arranged along a first direction. Figure 1 In the X direction shown, the width direction of the housing 10 is a second direction perpendicular to the first direction. Figure 1 In the Y direction shown, the height direction of the housing 10 is Figure 1 The Z direction is shown.

[0036] In this embodiment, the line connecting two adjacent wiring holes 110 and the partition 220 located between the two wiring holes 110 are arranged at an angle, so that the partition 220 is shielded between the two external wires.

[0037] like Figure 1 、 Figure 2 、 Figure 3 and Figure 5 As shown, the line connecting two adjacent wiring holes 110 is perpendicular to the partition plate 220 located between the two wiring holes 110 .

[0038] The projection of the stripping area of the external conductive wire in the first direction is located inside the two side surfaces of the partition 220 in the first direction, so that the partition 220 can isolate two adjacent stripping areas of the external conductive wire.

[0039] In this embodiment, the guide column 210 along the height direction of the outer shell 10 also has a limit member 230 arranged on one side of the partition 220, and the outer shell 10 has a through hole 130. The limit member 230 is arranged inside the through hole 130, and the end face of the limit member 230 away from the partition 220 abuts against the inner wall surface of the through hole 130.

[0040] Among them, the end face of the limiting member 230 away from the partition 220 abuts against the inner wall surface of the through hole 130, and the end face of the guide column 210 away from the limiting member 230 along the height direction of the outer shell 10 abuts against the bottom surface of the slide groove 120, thereby realizing the positioning of the guide column 210 along the height direction of the outer shell 10, and thereby realizing the positioning of the isolation structure 20.

[0041] like Figures 1 to 3 As shown, the limit members 230 are arranged in pairs, and the two limit members 230 are symmetrically arranged on both sides of the guide column 210 along the first direction. The first ends of the two limit members 230 are connected to the guide column 210 along the height direction of the shell 10 to form an angle, and the second ends of the limit members 230 extend in a direction away from the partition 220 and are spaced apart from the guide column 210. The distance between the first ends of the two limit members 230 along the first direction is less than the distance between the second ends of the two limit members 230 to form an open structure.

[0042] The distance between the second ends of the two limiting members 230 along the first direction is greater than the width of the sliding groove 120 , and the two limiting members 230 are in an inverted structure.

[0043] Specifically, in the process of the guide column 210 moving along the slide groove 120, one end of the limit member 230 first enters the interior of the slide groove 120 and moves with the guide column 210 inside the slide groove 120. As the guide column 210 moves, the second end of the limit member 230 begins to enter the slide groove 120 and undergoes elastic deformation toward the side close to the guide column 210. When the limit member 230 moves to the interior of the through hole 130, the limit member 230 returns to its original shape under the action of the elastic force and abuts against the inner wall surface of the through hole 130. At this time, the guide column 210 abuts against the bottom surface of the slide groove 120.

[0044] In this embodiment, the through hole 130 is a rectangular hole. The through hole 130 is used to accommodate the limiting member 230 and provide an abutting plane against the limiting member 230 .

[0045] like Figures 1 to 3 As shown, one of the end faces of the housing 10 along the height direction also has a mounting hole 140 corresponding to the wiring hole 110 for fixing the wire. The interior of the mounting hole 140 is used for a fixing member to lock the external wire, and the fixing member can be a screw.

[0046] When a plurality of mounting holes 140 are provided, the plurality of mounting holes 140 are provided on the same surface of the housing 10 , and the plurality of mounting holes 140 are arranged in a straight line along the first direction, similar to the wiring holes 110 .

[0047] In this embodiment, the isolation structure 20 also includes a connecting rod 240 and a cover body 250. One end of the connecting rod 240 is connected to the guide column 210, and the other end of the connecting rod 240 is connected to the cover body 250. The cover body 250 corresponds one-to-one to the mounting hole 140. At least a portion of the cover body 250 can be detachably arranged inside the mounting hole 140 to block or expose the mounting hole 140.

[0048] In this embodiment, the mounting holes 140 are arranged in pairs, and the corresponding covers 250 are arranged in pairs, and the paired covers 250 correspond one-to-one with the mounting holes 140. It is understood that when there is an odd number of mounting holes 140, there should also be an odd number of covers 250 to achieve a corresponding arrangement of the covers 250 and the mounting holes 140.

[0049] Connecting rod 240 is connected between cover 250 and guide post 210. Cover 250 is used to block mounting hole 140. The isolation structure 20 of this embodiment prevents the danger of twisting the fixings due to misoperation. Cover 250 also provides a waterproof and dustproof effect, preventing rainwater and dust from entering the interior of housing 10 and causing rust on the fixings.

[0050] In this embodiment, the connecting rod 240 includes multiple arm segments, and the guide column 210 is connected to the cover body 250 through the multiple arm segments, wherein the multiple arm segments of the connecting rod 240 are cooperatively arranged between the guide column 210 and the cover body 250 to realize the connection between the guide column 210 and the cover body 250, so as to realize the guide column 210, the connecting rod 240 and the cover body 250 to form an integral structure.

[0051] Specifically, the multiple arm segments can be directly connected or indirectly connected. When the multiple arm segments are indirectly connected, one arm segment is arranged between the guide column 210 and the cover body 250, and the other arm segments are arranged between two adjacent covers 250.

[0052] exist Figures 1 to 5 In the illustrated embodiment, two arm segments are provided. Specifically, the connecting rod 240 includes a first arm segment 241 and a second arm segment 242 arranged at an angle. The first end of the first arm segment 241 is connected to the guide post 210, the second end of the first arm segment 241 is connected to the second arm segment 242, and the two ends of the second arm segment 242 are respectively connected to the two covers 250.

[0053] Specifically, the first arm section 241 and the arm sections adopt an intersecting connection structure to connect the cover body 250 and the guide column 210, so as to realize the connection arrangement of one guide column 210 and two cover plates.

[0054] In this embodiment, the first arm section 241 and the second arm section 242 are arranged vertically, and the first arm section 241 and the second arm section 242 are formed into a T-shaped structure. The vertical arrangement of the first arm section 241 and the second arm section 242 provides a more stable connection, which is conducive to improving the stability of the overall structure.

[0055] In this embodiment, the first arm segment 241 and the second arm segment 242 are fitted with the end surface of the shell 10. The fitted first arm segment 241 and the second arm segment 242 avoid the problem of protrusions causing easy bumps and affecting the installation stability of the isolation structure 20, and are also beneficial to the overall aesthetics.

[0056] like Figure 2 and Figure 5 As shown, a positioning protrusion 260 is provided on the cover body 250, and the housing 10 has a mounting cavity 150 connected to the mounting hole 140. When the cover body 250 is sealed in the mounting hole 140, the positioning protrusion 260 is located inside the mounting cavity 150 and abuts against the inner wall surface of the mounting cavity 150.

[0057] Specifically, a positioning protrusion 260 is provided on the cover 250 to achieve abutment between the cover 250 and the housing 10 to prevent the cover 250 from falling out, which is beneficial to improving the installation stability of the cover 250.

[0058] In this embodiment, a plurality of positioning protrusions 260 are provided, and the abutment stability of the cover 250 is improved by providing a plurality of positioning protrusions 260 .

[0059] The plurality of positioning protrusions 260 may be spaced apart along the circumference of the cover body 250 , or may be spaced apart along the height direction of the cover body 250 . Of course, the plurality of positioning protrusions 260 may be spaced apart along both the circumference and the height directions of the cover body 250 .

[0060] Preferably, the plurality of positioning protrusions 260 are arranged at equal intervals along the circumference of the cover body 250 ; and the plurality of positioning protrusions 260 are arranged at equal intervals along the height direction of the cover body 250 .

[0061] In this embodiment, the positioning protrusion 260 is formed as an undercut structure in which the distance between the end away from the partition 220 and the axis of the cover 250 is greater than the distance between the end close to the partition 220 and the axis of the cover 250. The end of the positioning protrusion 260 away from the partition 220 has an abutting surface that abuts the inner wall surface of the mounting cavity 150. The undercut structure is provided to achieve abutment with the inner wall surface of the housing 10 to achieve an anti-slip effect.

[0062] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0063] The circuit breaker of the present application adopts an isolation structure 20 set between two adjacent wiring holes 110, and the two wiring holes 110 are isolated by the partition 220 on the isolation structure 20, thereby avoiding the occurrence of short circuit caused by phase breakdown. At the same time, the circuit breaker of the present application adopts a guide column 210 slidingly set on the housing 10. The sliding structure not only facilitates installation and improves installation efficiency, but also has a guiding and limiting function, avoiding the problem of shaking and installation offset of the isolation structure 20, and ensuring the installation accuracy and stability of the isolation structure 20.

[0064] The structure of the present application is simple, and the setting of the partition 220 is conducive to preventing phase breakdown; at the same time, the setting of the cover body 250 is conducive to achieving the anti-dismantling effect. The present application not only has the advantages of preventing phase breakdown but also has the advantages of anti-dismantling.

[0065] Obviously, the embodiments described above are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0066] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, tasks, devices, components and / or combinations thereof.

[0067] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0068] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A circuit breaker, characterized in that: include: A housing (10), wherein one side of the housing (10) has a plurality of wiring holes (110) and a slide groove (120) disposed between two adjacent wiring holes (110), and the slide groove (120) extends along the height direction of the housing (10); An isolation structure (20) is provided between two adjacent wiring holes (110), the isolation structure (20) comprising a guide column (210) and a partition (220) provided on the guide column (210), at least a portion of the guide column (210) being slidably provided inside the slide groove (120), and at least a portion of the partition (220) protruding from the slide groove (120) and provided between the two wiring holes (110).

2. The circuit breaker according to claim 1, wherein: A line connecting two adjacent wiring holes (110) and the partition (220) located between the two wiring holes (110) are arranged at an angle.

3. The circuit breaker according to claim 2, wherein: A line connecting two adjacent wiring holes (110) is perpendicular to the partition (220) located between the two wiring holes (110).

4. The circuit breaker according to claim 1, wherein: The guide column (210) further comprises a limiting member (230) arranged on one side of the partition (220) along the height direction of the housing (10); the housing (10) comprises a through hole (130); the limiting member (230) is arranged inside the through hole (130); and the end face of the limiting member (230) away from the partition (220) abuts against the inner wall surface of the through hole (130).

5. The circuit breaker according to claim 4, characterized in that The plurality of wiring holes (110) are collinearly arranged along a first direction, the limiting members (230) are symmetrically arranged on both sides of the guide column (210) along the first direction, the first ends of the two limiting members (230) are connected to the guide column (210) along the height direction of the housing (10) to form an angle, and the second ends of the limiting members (230) extend in a direction away from the partition (220) to form an opening structure.

6. The circuit breaker according to any one of claims 1 to 5, characterized in that: The housing (10) further comprises, on one of its end faces in the height direction, mounting holes (140) for fixing the wires, corresponding one-to-one with the wiring holes (110). The isolation structure (20) further comprises: a connecting rod (240), one end of which is connected to the guide column (210); The cover body (250) is connected to the other end of the connecting rod (240), and the cover body (250) corresponds to the mounting hole (140) one by one. At least a portion of the cover body (250) is detachably arranged inside the mounting hole (140) to block or expose the mounting hole (140).

7. The circuit breaker according to claim 6, characterized in that The connecting rod (240) includes a plurality of arm segments, and the guide column (210) is connected to the cover body (250) via the plurality of arm segments.

8. The circuit breaker according to claim 7, characterized in that There are two arm segments, one of which is a first arm segment (241) and the other is a second arm segment (242). The first arm segment (241) is connected to the guide column (210), and the second arm segment (242) is connected to the cover body (250). The first arm segment (241) and the second arm segment (242) are arranged vertically, and the first arm segment (241) and the second arm segment (242) are formed into a T-shaped structure; and / or The first arm segment (241) and the second arm segment (242) are in contact with the end surface of the housing (10).

9. The circuit breaker according to claim 6, wherein: A positioning protrusion (260) is provided on the cover body (250), and the housing (10) has a mounting cavity (150) connected to the mounting hole (140). When the cover body (250) blocks the mounting hole (140), the positioning protrusion (260) is located inside the mounting cavity (150) and abuts against the inner wall surface of the mounting cavity (150).

10. The circuit breaker according to claim 9, characterized in that A plurality of positioning protrusions (260) are provided, and the plurality of positioning protrusions (260) are arranged at intervals along the circumference of the cover body (250); and / or A plurality of positioning protrusions (260) are provided, and the plurality of positioning protrusions (260) are spaced apart along the height direction of the cover body (250); and / or The positioning protrusion (260) is formed into an inverted structure in which the distance between the end away from the partition (220) and the axis of the cover body (250) is greater than the distance between the end close to the partition (220) and the axis of the cover body (250), and the end of the positioning protrusion (260) away from the partition (220) has an abutting surface that abuts against the inner wall surface of the installation cavity (150).

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