circuit breaker

Abstract

The disclosure provides a circuit breaker, belonging to the technical field of electronics. The circuit breaker comprises a circuit breaker body and a shroud, an outer wall of the circuit breaker body is a wiring surface, the wiring surface is provided with a wiring hole, the shroud comprises a shroud body and at least three buckles, the connection lines between the at least three buckles form at least one triangle, and each buckle is respectively buckled on the wiring surface, so that the shroud body covers the wiring hole. The disclosure can effectively improve the assembly reliability of the shroud.

Description

Technical Field

[0001] This disclosure belongs to the field of electronic technology, and in particular relates to a circuit breaker. Background Technology

[0002] A circuit breaker is a switching device used to detect abnormal leakage current in electrical circuits and automatically cut off the power, thereby protecting people.

[0003] In related technologies, the outer wall of the circuit breaker has wiring holes into which wires are inserted. To prevent the wires from being directly exposed, the circuit breaker also has a protective cover that covers the wiring holes, thus shielding the wires.

[0004] However, the assembly between the protective cover and the outer wall of the circuit breaker in the relevant technology is not secure and is prone to loosening or even falling off. Utility Model Content

[0005] This disclosure provides a circuit breaker that effectively improves the assembly reliability of the protective cover. The technical solution is as follows:

[0006] On one hand, embodiments of this disclosure provide a circuit breaker, including: a circuit breaker body and a protective cover;

[0007] One outer wall of the circuit breaker body is a wiring surface, and the wiring surface has wiring holes;

[0008] The cover includes a cover body and at least three buckles, the lines connecting the at least three buckles forming at least one triangle, and each buckle being snapped onto the wiring surface so that the cover body covers the wiring hole.

[0009] In one implementation of this disclosure, the number of buckles is three, the three buckles are arranged at intervals and are respectively located at the outer edge of the cover, and the line connecting the three buckles forms a triangle.

[0010] In another implementation of this disclosure, the three buckles include positioning buckles and two snap-fit ​​buckles;

[0011] The positioning buckle is inserted into the circuit breaker body, and the snap-fit ​​buckle is snap-fitted into the circuit breaker body.

[0012] In another implementation of this disclosure, an outer wall of the circuit breaker body is a positioning surface, which is located on one side of the wiring surface and connected to the wiring surface;

[0013] The positioning buckle is inserted into the positioning surface.

[0014] In another implementation of this disclosure, the positioning surface has positioning holes;

[0015] The positioning buckle includes a connecting arm and a positioning protrusion. The positioning protrusion is connected to the first end of the connecting arm, the second end of the connecting arm is connected to the cover, and the positioning protrusion is inserted into the positioning hole.

[0016] In another implementation of this disclosure, the positioning surface has a clearance hole located at the junction of the positioning surface and the wiring surface, one end of the clearance hole is connected to the positioning hole, and the other end of the clearance hole is located at the wiring surface.

[0017] The connecting arm is located inside the clearance hole.

[0018] In another implementation of this disclosure, the wiring surface has a snap-fit ​​hole;

[0019] The snap-fit ​​fastener engages within the snap-fit ​​hole.

[0020] In another implementation of this disclosure, the cover includes a first protective cover, a second protective cover, and a baffle.

[0021] The first protective cover and the second protective cover are connected;

[0022] The baffle is located at the angle between the first protective cover and the second protective cover, and the baffle is connected to both the first protective cover and the second protective cover.

[0023] In another implementation of this disclosure, the baffle is in contact with the wiring surface.

[0024] In another implementation of this disclosure, the wiring surface has a wire insertion hole, and the wire insertion hole has a wiring terminal.

[0025] The distance from the terminal block to the wiring surface is less than 4mm.

[0026] The beneficial effects of the technical solutions provided in this disclosure are:

[0027] The circuit breaker provided in this embodiment includes a circuit breaker body and a protective cover. The circuit breaker body is capable of detecting abnormal leakage current in the power line and automatically disconnecting the power. The protective cover includes a housing and at least three clips, each of which is respectively engaged with the wiring surface to cover the wiring hole. Since the lines connecting the at least three clips form at least one triangle, the stability of the triangle effectively improves the installation firmness of the protective cover on the circuit breaker body, thereby improving the assembly reliability of the protective cover.

[0028] In other words, by setting at least three clips, and the lines connecting at least three of the clips forming at least one triangle, the installation firmness of the cover on the circuit breaker body is effectively improved. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the structure of the circuit breaker provided in the embodiments of this disclosure;

[0031] Figure 2 This is a schematic diagram of the structure of the circuit breaker body provided in the embodiments of this disclosure;

[0032] Figure 3 This is a schematic diagram of the structure of the protective cover provided in the embodiments of this disclosure;

[0033] Figure 4 This is a cross-sectional view of the circuit breaker provided in the embodiments of this disclosure along the AA direction;

[0034] Figure 5 This is a sectional view of the circuit breaker in the BB direction provided in the embodiment of this disclosure.

[0035] The symbols in the diagram represent the following meanings:

[0036] 10. Circuit breaker body;

[0037] 110. Wiring surface; 111. Wiring hole; 112. Snap-fit ​​hole; 113. Wire insertion hole; 120. Positioning surface; 121. Positioning hole; 122. Clearance hole; 130. Wiring terminal; 140. Residual current circuit breaker module; 150. Residual current tripping module;

[0038] 20. Protective cover;

[0039] 210. Cover body; 211. First protective cover; 212. Second protective cover; 213. Baffle; 214. Perforation; 220. Buckle; 221. Positioning buckle; 2211. Connecting arm; 2212. Positioning protrusion; 222. Snap-fit ​​buckle; 2221. Cantilever; 2222. Hook.

[0040] The accompanying drawings have illustrated specific embodiments of this disclosure, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concepts of this disclosure to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this disclosure clearer, the embodiments of this disclosure will be described in further detail below with reference to the accompanying drawings.

[0042] This disclosure provides a circuit breaker. Figure 1 See the schematic diagram of the circuit breaker. Figure 1 In this embodiment, the circuit breaker includes a circuit breaker body 10 and a protective cover 20.

[0043] Figure 2 This is a structural schematic diagram of the circuit breaker body 10, combined with... Figure 2 One outer wall of the circuit breaker body 10 is a wiring surface 110, and the wiring surface 110 has wiring holes 111.

[0044] Figure 3 This is a structural schematic diagram of the protective cover 20, combined with... Figure 3 The cover 20 includes a cover body 210 and at least three clips 220. The lines connecting the at least three clips 220 form at least one triangle. Each clip 220 is respectively engaged on the wiring surface 110 so that the cover body 210 covers the wiring hole 111.

[0045] The circuit breaker provided in this embodiment includes a circuit breaker body 10 and a protective cover 20. The circuit breaker body 10 is capable of detecting abnormal leakage current in the power line and automatically disconnecting the power. The protective cover 20 includes a cover 210 and at least three clips 220, each clip 220 being respectively engaged with the wiring surface 110 to cover the wiring hole 111. Since the connection between the at least three clips 220 forms at least one triangle, the stability of the triangle can effectively improve the installation firmness of the protective cover 20 on the circuit breaker body 10, thereby improving the assembly reliability of the protective cover 20.

[0046] In other words, by setting at least three clips 220, and the lines connecting the at least three clips 220 forming at least one triangle, the installation firmness of the cover 20 on the circuit breaker body 10 is effectively improved.

[0047] See you again Figure 2 In this embodiment, the circuit breaker body 10 includes a residual current circuit breaker module 140 and a residual current tripping module 150. The residual current circuit breaker module 140 and the residual current tripping module 150 are assembled and snapped together, and are electrically connected by a cable inserted into the wiring hole 111.

[0048] See you again Figure 3 In this embodiment, there are three buckles 220. The three buckles 220 are arranged at intervals and are located at the outer edge of the cover 210. The line connecting the three buckles 220 forms a triangle.

[0049] In the above implementation, the three clips 220 are arranged at intervals, forming a triangle that provides good structural stability. Furthermore, the small number of clips 220 minimizes the impact on assembly efficiency. Additionally, since the three clips 220 are located at the outer edge of the cover 210, they effectively limit the outer edge of the cover 210, preventing it from warping or loosening. This also allows for easy observation of whether the clips 220 are properly assembled, improving the assembly reliability of the clips 220.

[0050] Of course, in other embodiments, the number of clips 220 can be four, five, etc., and this disclosure does not limit this.

[0051] See also Figure 3 In this embodiment, the three latches 220 include a positioning latch 221 and two snap-fit ​​latches 222. The positioning latch 221 is inserted into the circuit breaker body 10, and the snap-fit ​​latches 222 are snap-fitted into the circuit breaker body 10.

[0052] In the above implementation, the positioning buckle 221 and the snap-fit ​​buckle 222 are two different types of snap-fit ​​220. The positioning buckle 221 is used to position the cover 20 and the circuit breaker body 10, while the snap-fit ​​buckle 222 is used to fix the cover 20 and the circuit breaker body 10. Through the cooperation between the positioning buckle 221 and the snap-fit ​​buckle 222, the assembly efficiency of the cover 20 can be improved while ensuring the installation firmness of the cover 20.

[0053] During the assembly of the protective cover 20, the positioning buckle 221 is first inserted into the circuit breaker body 10 to achieve initial positioning. Then, the two snap-fit ​​buckles 222 are respectively snapped into the circuit breaker body 10 to achieve fixed assembly.

[0054] It is worth noting that after the circuit breaker bodies 10 are interlocked, the positioning buckles 221 will restrict the movement freedom of the cover 20 to a certain extent, thus playing a positioning role. In order to avoid excessive restriction of the freedom of the cover 20, the number of positioning buckles 221 shall not exceed two.

[0055] Of course, in other embodiments, the cover 20 may not include the positioning buckle 221, but all the buckles 220 are snap-fit ​​buckles 222, which can also ensure the assembly firmness between the cover 20 and the circuit breaker body 10.

[0056] See you again Figure 1In this embodiment, one outer wall of the circuit breaker body 10 is a positioning surface 120. The positioning surface 120 is located on one side of the wiring surface 110 and is connected to the wiring surface 110. The positioning buckle 221 is inserted into the positioning surface 120.

[0057] In the above implementation, the positioning surface 120 and the wiring surface 110 are different outer walls of the circuit breaker body 10. Inserting the positioning buckle 221 into the positioning surface 120 can effectively avoid the impact on the wiring hole 111.

[0058] In this embodiment, the positioning surface 120 has a positioning hole 121, and the positioning buckle 221 includes a connecting arm 2211 and a positioning protrusion 2212. The positioning protrusion 2212 is connected to the first end of the connecting arm 2211, and the second end of the connecting arm 2211 is connected to the cover 210. The positioning protrusion 2212 is inserted into the positioning hole 121 (see [reference]). Figure 4 ).

[0059] During the assembly of the cover 20, the positioning protrusion 2212 is first inserted into the positioning hole 121. At this time, the cover 20 is tilted relative to the circuit breaker body 10. Then, the cover 20 is swung around the positioning protrusion 2212 as the axis, so that the two snap fasteners 222 gradually approach the circuit breaker body 10 until the two snap fasteners 222 are snapped together with the circuit breaker body 10.

[0060] See also Figure 1 The positioning surface 120 has a clearance hole 122, which is located at the junction of the positioning surface 120 and the wiring surface 110. One end of the clearance hole 122 is connected to the positioning hole 121, and the other end of the clearance hole 122 is located at the wiring surface 110. The connecting arm 2211 is located inside the clearance hole 122.

[0061] In the above implementation, the connecting arm 2211 is placed inside the relief hole 122, which can prevent the connecting arm 2211 from protruding from the positioning surface 120 of the circuit breaker body 10, thereby improving the overall integrity of the circuit breaker.

[0062] In this embodiment, the wiring surface 110 has a snap-fit ​​hole 112, and the snap-fit ​​buckle 222 snaps into the snap-fit ​​hole 112 (see...). Figure 5 ).

[0063] In the above implementation, the snap-fit ​​222 includes a cantilever 2221 and a hook 2222. The cantilever 2221 has a certain elasticity, and its first end is connected to the cover 210. The hook 2222 is an inverted triangular prism and is connected to the second end of the cantilever 2221. During the assembly of the snap-fit ​​222, the edge of the snap-fit ​​hole 112 abuts against the inclined surface of the hook 2222, and the two slide together. During the abutment process, the cantilever 2221 undergoes elastic deformation, causing the hook 2222 to gradually slide into the snap-fit ​​hole 112. After the hook 2222 enters the snap-fit ​​hole 112, the cantilever 2221 automatically returns to its original shape, thus being snapped into the snap-fit ​​hole 112 by the plane of the hook 2222.

[0064] See you again Figure 2 In this embodiment, the cover 210 includes a first protective cover 211, a second protective cover 212 and a baffle 213. The first protective cover 211 and the second protective cover 212 are connected. The baffle 213 is located at the included angle between the first protective cover 211 and the second protective cover 212, and the baffle 213 is connected to the first protective cover 211 and the second protective cover 212 respectively.

[0065] The first protective cover 211 and the second protective cover 212 are connected, meaning that the internal spaces of the first protective cover 211 and the second protective cover 212 are connected, while the outer walls of the first protective cover 211 and the second protective cover 212 are connected together.

[0066] Since the first protective cover 211 and the second protective cover 212 are connected, the cable connecting the residual current circuit breaker module 140 and the residual current trip module 150 can be routed between the first protective cover 211 and the second protective cover 212, which improves the convenience of wiring.

[0067] For example, the baffle 213 is attached to the wiring surface 110.

[0068] By having the baffle 213 attached to the wiring surface 110, the wiring surface 110 can be reliably protected.

[0069] In this embodiment, the wiring surface 110 has a wire insertion hole 113, and the wire insertion hole 113 has a wiring terminal 130. The distance from the wiring terminal 130 to the wiring surface 110 is less than 4mm.

[0070] In the above implementation, since the distance between the terminal 130 and the wiring surface 110 is small, the total stroke of the wire extending into the insertion hole 113 is small, thus avoiding poor contact caused by insufficient wire extension stroke.

[0071] In this embodiment, the baffle 213 is located on the wiring surface 110 at the position corresponding to the plug hole 113. The baffle 213 has a through hole 214, which corresponds one-to-one with the plug hole 113, for the power supply line to pass through and be plugged into the plug hole 113.

[0072] Since the baffle 213 is in contact with the wiring surface 110, it can prevent the baffle 213 from protruding too much from the wiring surface 110, which would cause unnecessary obstruction of the wire socket 113 and make it difficult to insert wires into the wire socket 113.

[0073] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” “third,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms “an” or “a” and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms “comprising” or “including” and similar terms mean that the elements or objects preceding “comprising” or “including” encompass the elements or objects listed following “comprising” or “including” and their equivalents, and do not exclude other elements or objects. The terms “connected” or “linked” and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms “upper,” “lower,” “left,” “right,” etc., are used only to indicate relative positional relationships; when the absolute position of the described objects changes, the relative positional relationship may also change accordingly.

[0074] The above description is merely an optional embodiment of this disclosure and is not intended to limit this disclosure. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the protection scope of this disclosure.

Claims

1. A circuit breaker, characterized in that, include: Circuit breaker body (10) and protective cover (20); One outer wall of the circuit breaker body (10) is a wiring surface (110), and the wiring surface (110) has a wiring hole (111); The cover (20) includes a cover body (210) and at least three buckles (220). The line connecting the at least three buckles (220) forms at least one triangle. Each buckle (220) is snapped onto the wiring surface (110) so that the cover body (210) covers the wiring hole (111).

2. The circuit breaker according to claim 1, characterized in that, The number of buckles (220) is three, the three buckles (220) are arranged at intervals and are respectively located at the outer edge of the cover (210), and the line connecting the three buckles (220) forms a triangle.

3. The circuit breaker according to claim 2, characterized in that, The three buckles (220) include a positioning buckle (221) and two snap-fit ​​buckles (222); The positioning buckle (221) is inserted into the circuit breaker body (10), and the snap-fit ​​buckle (222) is snap-fitted into the circuit breaker body (10).

4. The circuit breaker according to claim 3, characterized in that, One outer wall of the circuit breaker body (10) is a positioning surface (120), which is located on one side of the wiring surface (110) and connected to the wiring surface (110); The positioning buckle (221) is inserted into the positioning surface (120).

5. The circuit breaker according to claim 4, characterized in that, The positioning surface (120) has a positioning hole (121); The positioning buckle (221) includes a connecting arm (2211) and a positioning protrusion (2212). The positioning protrusion (2212) is connected to the first end of the connecting arm (2211), the second end of the connecting arm (2211) is connected to the cover (210), and the positioning protrusion (2212) is inserted into the positioning hole (121).

6. The circuit breaker according to claim 5, characterized in that, The positioning surface (120) has a clearance hole (122), which is located at the junction of the positioning surface (120) and the wiring surface (110). One end of the clearance hole (122) is connected to the positioning hole (121), and the other end of the clearance hole (122) is located at the wiring surface (110). The connecting arm (2211) is located inside the relief hole (122).

7. The circuit breaker according to claim 3, characterized in that, The wiring surface (110) has a snap-fit ​​hole (112); The snap fastener (222) snaps into the snap hole (112).

8. The circuit breaker according to any one of claims 1 to 7, characterized in that, The cover (210) includes a first protective cover (211), a second protective cover (212), and a baffle (213); The first protective cover (211) and the second protective cover (212) are connected; The baffle (213) is located at the angle between the first protective cover (211) and the second protective cover (212), and the baffle (213) is connected to the first protective cover (211) and the second protective cover (212) respectively.

9. The circuit breaker according to claim 8, characterized in that, The baffle (213) is in contact with the wiring surface (110).

10. The circuit breaker according to any one of claims 1 to 7, characterized in that, The wiring surface (110) has a wire insertion hole (113), and the wire insertion hole (113) has a wiring terminal (130); The distance from the terminal block (130) to the wiring surface (110) is less than 4 mm.

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