Anti-electric shock mechanism of circuit breaker, circuit breaker and distributor

Abstract

The present invention discloses an anti-electric shock mechanism for a circuit breaker, a circuit breaker, and a power distributor. The anti-electric shock mechanism of the circuit breaker includes a moving part, which is arranged in the housing of the circuit breaker and can move relative to the housing; a protrusion, which is arranged on the moving part and can extend out of the housing; a driver, which is installed in the housing and electrically connected to the circuit board of the circuit breaker; a pushing part, which is arranged on the moving part, and the pushing part is located on one side of the driver and is tilted relative to the driver; when the circuit breaker and the chassis of the power distributor are assembled or disassembled, the chassis can act on the protrusion and push the protrusion into the housing, so that the pushing part moves and triggers the driver. The circuit breaker provided by the present invention includes the above-mentioned anti-electric shock mechanism. The power distributor provided by the present invention includes the above-mentioned circuit breaker.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit breakers, and in particular to an anti-electric shock mechanism of a circuit breaker, a circuit breaker and a distributor. Background Art

[0002] Circuit breakers can be categorized as either fixed or pluggable, depending on their installation method. Traditional fixed circuit breakers typically use elastic clips to secure them to the power distribution box. Removing the breaker requires a screwdriver, making it inconvenient. Plug-in circuit breakers, on the other hand, can be installed and removed from the power distribution box through a simple plug-in and pull-out operation. However, existing plug-in circuit breakers may remain energized during insertion or removal from the box, making them less secure and potentially posing a safety hazard to operators.

[0003] Therefore, there is an urgent need for an anti-electric shock mechanism for a circuit breaker to solve the above problems. Summary of the Invention

[0004] The present invention aims to solve, at least to a certain extent, one of the problems existing in the existing related technologies. To this end, the present invention proposes an anti-electric shock mechanism for a circuit breaker, which can ensure that the circuit breaker is in a disconnected state when the circuit breaker and the chassis of the distributor are assembled or disassembled, thereby achieving an anti-electric shock effect, ensuring the safety of the circuit breaker during use, and further ensuring the personal safety of the operator.

[0005] The above purpose is achieved through the following technical solutions:

[0006] An anti-electric shock mechanism for a circuit breaker, comprising:

[0007] A moving member, disposed in a housing of the circuit breaker and capable of moving relative to the housing;

[0008] a protrusion, disposed on the moving member and capable of extending out of the housing;

[0009] a driver, mounted in the housing and electrically connected to a circuit board of the circuit breaker;

[0010] a pushing portion, disposed on the moving member, the pushing portion being located on one side of the driver and being tilted relative to the driver;

[0011] When the circuit breaker is assembled with or disassembled from the chassis of the power distributor, the chassis can act on the protrusion and push the protrusion into the housing, so that the pushing portion moves and triggers the driver.

[0012] Optionally, the pushing portion is provided on one side of the moving member, an end of the pushing portion away from the moving member is provided with an arc surface, and a side of the pushing portion close to the driver is provided with a pushing inclined surface connected to the arc surface.

[0013] Optionally, when the pushing portion moves, the pushing portion can push the contact arm of the driver to move along a first direction to trigger the driver.

[0014] Optionally, the pushing portion is arranged obliquely relative to the moving member, the direction in which the moving member moves relative to the shell is a second direction, and the first direction is arranged perpendicular to the second direction.

[0015] Optionally, a first guide structure is further included, which is arranged between the moving member and the shell and along the second direction, and is used to guide the moving member.

[0016] Optionally, the first guide structure includes:

[0017] a first guide slot, provided on one of the moving member and the housing;

[0018] The first guide member is arranged on the other of the moving member and the housing and is arranged corresponding to the first guide slot. The first guide member can extend into the first guide slot and be slidable relative to the first guide slot.

[0019] Optionally, a second guiding structure is further included, which is arranged between the pushing portion and the shell and along the inclined direction of the pushing portion, for guiding the pushing portion.

[0020] Optionally, the second guide structure includes:

[0021] a second guide slot, provided on one of the pushing portion and the housing;

[0022] The second guide member is provided on the other of the pushing portion and the housing and is provided corresponding to the second guide slot. The second guide member can extend into the second guide slot and slide relative to the second guide slot.

[0023] Optionally, the second guide member is arranged between the pushing portion and the moving member, the first side of the pushing portion is provided with a first limiting side surface, and the second side of the pushing portion is provided with a second limiting side surface, the first side of the pushing portion and the second side of the pushing portion are both located between the pushing portion and the moving member, the first side of the pushing portion and the second side of the pushing portion are arranged opposite to each other, the first limiting side surface is arranged along the inclination direction of the pushing portion, and the second limiting side surface is arranged along the moving direction of the moving member, the second guide slot hole is arranged on the inner wall of the shell, the second guide slot includes a first limiting side wall and a second limiting side wall, the second limiting side wall is arranged parallel to the second limiting side wall and can slide along the second limiting side wall, and the first limiting side wall is arranged parallel to the first limiting side wall and can slide along the first limiting side wall.

[0024] Optionally, an elastic reset structure is further included, which is arranged between the movable member and the shell. When the circuit breaker is installed in place in the chassis and when the circuit breaker is removed from the chassis, the movable member can be reset under the elastic force of the elastic reset structure so that the protrusion extends out of the shell.

[0025] Optionally, the elastic reset structure includes:

[0026] torsion springs;

[0027] A rotating shaft is arranged on the inner wall of the housing, and the torsion spring is sleeved on the rotating shaft;

[0028] a first limiting portion, disposed on the inner wall of the housing, wherein the supporting arm of the torsion spring abuts against the first limiting portion;

[0029] The second limiting portion is arranged on the moving part, and the free force arm of the torsion spring abuts against the second limiting portion.

[0030] Another aspect of the present invention provides a circuit breaker, comprising a housing and a circuit board disposed in the housing, and also comprising the above-mentioned anti-electric shock mechanism.

[0031] Another aspect of the present invention provides a power distributor, including a chassis and the above-mentioned circuit breaker.

[0032] Compared with the prior art, the present invention has at least the following beneficial effects:

[0033] The anti-electric shock mechanism of the circuit breaker provided by the present invention includes a moving part, a protrusion, a driver and a pushing part. The moving part is arranged in the housing of the circuit breaker and can move relative to the housing. The protrusion is arranged on the moving part and can extend out of the housing. The driver is installed in the housing and electrically connected to the circuit board of the circuit breaker. The pushing part is arranged on the moving part, the pushing part is located on one side of the driver and is tilted relative to the driver. When the circuit breaker is assembled or disassembled with the chassis of the distributor, the chassis can act on the protrusion and push the protrusion into the housing, so that the pushing part moves and triggers the driver, so that the driver can send a signal to the circuit board. After receiving the signal, the circuit board controls the circuit breaker to disconnect, thereby ensuring that the circuit breaker is in a disconnected state when the circuit breaker is assembled or disassembled with the distributor, thereby achieving an anti-electric shock effect, ensuring the safety of the circuit breaker during use, and further ensuring the personal safety of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the three-dimensional structure of the assembly of the chassis and circuit breaker of the power distributor provided by a specific embodiment of the present invention;

[0035] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0036] Figure 3 is a schematic diagram of the three-dimensional structure of a circuit breaker provided by a specific embodiment of the present invention;

[0037] Figure 4 yes Figure 3 Exploded view of

[0038] Figure 5 is a schematic structural diagram of a circuit breaker provided by a specific embodiment of the present invention with the upper housing removed;

[0039] Figure 6 1 is a schematic diagram of the assembly between the anti-electric shock mechanism and the upper housing of the circuit breaker provided by a specific embodiment of the present invention;

[0040] Figure 7 1 is a schematic diagram of the assembly between the upper housing of the circuit breaker, the second guide slot, the first guide member, and the first limiting portion provided by a specific embodiment of the present invention;

[0041] Figure 8 yes Figure 7 Enlarged view of point B in the middle;

[0042] Figure 9 1 is an assembly diagram of a circuit breaker moving member, a second guide member, and a pushing portion provided by a specific embodiment of the present invention;

[0043] Figure 10 It is a schematic diagram of the assembly between the anti-electric shock mechanism and the upper housing of a circuit breaker provided by another specific embodiment of the present invention.

[0044] In the picture:

[0045] 1. Housing; 11. Upper housing; 111. First through hole; 12. Lower housing;

[0046] 21. Moving member; 211. Protrusion; 212. Pushing portion; 2121. Arc surface; 2122. Pushing inclined surface; 213. First guide slot; 214. Second limiting portion; 215. Second guide member; 2151. First limiting side surface; 2152. Second limiting side surface; 22. Driver; 221. Contact arm; 23. Elastic reset structure; 231. Torsion spring; 232. Rotating shaft; 233. Limiting member; 234. First limiting portion; 24. Second guide slot; 241. Second limiting side wall; 242. First limiting side wall; 25. First guide member;

[0047] 100. Chassis; 110. Second through hole. DETAILED DESCRIPTION

[0048] The following examples illustrate the present invention, but the present invention is not limited to these examples. Modifications to the specific embodiments of the present invention or equivalent replacements of some technical features without departing from the spirit of the present invention should be included in the scope of the technical solution claimed in the present invention.

[0049] Please refer to Figures 1-9 The present invention provides an anti-electric shock mechanism for a circuit breaker, comprising a moving part 21, a protrusion 211, a driver 22, and a pushing portion 212. The moving part 21 is arranged in a housing 1 of the circuit breaker and can move relative to the housing 1. The protrusion 211 is arranged on the moving part 21 and can extend out of the housing 1. The driver 22 is installed in the housing 1 and is electrically connected to the circuit board of the circuit breaker. The pushing portion 212 is arranged on the moving part 21, and the pushing portion 212 is located on one side of the driver 22 and is arranged obliquely relative to the driver 22. When the circuit breaker is assembled or disassembled with the chassis 100 of the power distributor, the chassis 100 can act on the protrusion 211 and push the protrusion 211 into the housing 1, so that the pushing part 212 moves and triggers the driver 22, so that the driver 22 can send a signal to the circuit board. After receiving the signal, the circuit board controls the circuit breaker to disconnect, thereby ensuring that the circuit breaker is in a disconnected state when the circuit breaker is assembled or disassembled with the power distributor, thereby achieving an anti-electric shock effect, ensuring the safety of the circuit breaker during use, and further ensuring the personal safety of the operator.

[0050] Optionally, the pushing portion 212 is arranged on a side of the moving member 21, and the end of the pushing portion 212 away from the moving member 21 is provided with an arc surface 2121, and the side of the pushing portion 212 close to the driver 22 is provided with a push inclined surface 2122 connected with the arc surface 2121. By arranging the arc surface 2121 at the end of the pushing portion 212 away from the moving member 21, when the pushing portion 212 pushes the driver 22, the arc surface 2121 first contacts the contact arm 221 of the driver 22, and then gradually pushes the contact arm 221 to move, until the contact arm 221 crosses the arc surface 2121 and abuts against the push inclined surface 2122, and then continues to push the contact arm 221 to move to a preset position by the push inclined surface 2122. The provision of the arc surface 2121 enables the contact arm 221 to smoothly slide onto the push inclined surface 2122, thereby ensuring the flexibility of the circuit breaker disconnection when the circuit breaker and the distributor are assembled or disassembled.

[0051] Optionally, the pushing portion 212 is arranged on the first side of the moving member 21, the protrusion 211 is arranged on the second side of the moving member 21, the first side and the second side of the moving member 21 are arranged opposite to each other, and the moving member 21 is arranged at a position close to the side of the shell 1, and the second side of the moving member 21 is arranged close to the side of the shell 1. The side of the shell 1 is provided with a first through hole 111 to facilitate the protrusion 211 to extend out or retract into the shell 1 through the first through hole 111.

[0052] Optionally, when the pushing portion 212 moves, the pushing portion 212 can push the contact arm 221 of the driver 22 to move along the first direction to trigger the driver 22 .

[0053] Optionally, the pushing portion 212 is tilted relative to the moving member 21, the direction in which the moving member 21 moves relative to the housing 1 is the second direction, the first direction is perpendicular to the second direction, and when the moving member 21 moves relative to the housing 1, the first direction is perpendicular to the second direction.

[0054] When the actuator 21 moves along the second direction, the pushing portion 212 gradually acts on the contact arm 221 , thereby pushing the contact arm 221 to move along the first direction, so as to trigger the driver 22 .

[0055] Optionally, a first guide structure is further included, which is arranged between the moving part 21 and the shell 1 and along the second direction, and is used to guide the moving part 21 to ensure that the moving part 21 can always move along the second direction, thereby ensuring the operating stability of the anti-electric shock mechanism.

[0056] Optionally, the first guide structure includes a first guide slot 213 and a first guide member 25. The first guide slot 213 is provided on one of the moving member 21 and the housing 1. The first guide member 25 is provided on the other of the moving member 21 and the housing 1 and is provided corresponding to the first guide slot 213. The first guide member 25 can extend into the first guide slot 213 and slide relative to the first guide slot 213 to achieve a guiding effect on the moving member 21 during movement, so that the moving member 21 can always move along the second direction, thereby ensuring the operational stability of the anti-electric shock mechanism.

[0057] Specifically, in this embodiment, the first guide slot 213 is provided on the moving member 21 , and the first guide member 25 is provided on the inner wall of the housing 1 .

[0058] Optionally, the housing 1 includes an upper housing 11 and a lower housing 12 , which enclose a receiving cavity, and the anti-electric shock mechanism is disposed in the receiving cavity.

[0059] Furthermore, the first guide member 25 is provided on the inner wall of the upper housing 11 .

[0060] Optionally, multiple groups of first guide structures are provided to further ensure the stability of the moving member 21 during the movement.

[0061] Optionally, a second guide structure is further included, which is arranged between the pushing portion 212 and the shell 1 and along the inclined direction of the pushing portion 212, and is used to guide the pushing portion 212, thereby ensuring the stability of the pushing portion 212 during the movement process, so that the pushing member can always move along the first direction during the movement process, thereby ensuring the stability of the trigger driver 22.

[0062] Optionally, the second guide structure includes a second guide slot 24 and a second guide member 215. The second guide slot 24 is provided on one of the push portion 212 and the housing 1. The second guide member 215 is provided on the other of the push portion 212 and the housing 1 and corresponds to the second guide slot 24. The second guide member 215 can extend into the second guide slot 24 and slide relative to the second guide slot 24 to guide the push portion 212 during movement. This allows the push portion 212 to consistently move in a predetermined direction under the reaction force of the contact arm 221, thereby ensuring the operational stability of the anti-electric shock mechanism.

[0063] Optionally, the second guide member 215 is arranged between the pushing portion 212 and the moving member 21, the first side of the pushing portion 212 is provided with a first limiting side surface 2151, and the second side of the pushing portion 212 is provided with a second limiting side surface 2152. The first side of the pushing portion 212 and the second side of the pushing portion 212 are both located between the pushing portion 212 and the moving member 21, the first side of the pushing portion 212 and the second side of the pushing portion 212 are arranged opposite to each other, and the first limiting side surface 2151 is arranged along the inclination direction of the pushing portion 212. The second limiting side surface 2152 is arranged along the moving direction of the movable member 21, and the second guide slot 24 is arranged on the inner wall of the shell 1. The second guide slot 24 includes a first limiting side wall and a second limiting side wall 241. The second limiting side surface 2152 is arranged parallel to the second limiting side wall 241 and can slide along the second limiting side wall 241. The first limiting side surface 2151 is arranged parallel to the first limiting side wall 242 and can slide along the first limiting side wall 242, thereby achieving a guiding effect on the second guide member 215.

[0064] Optionally, an elastic reset structure 23 is also included, which is arranged between the movable part 21 and the shell 1. When the circuit breaker is installed in the chassis 100 and when the circuit breaker is removed from the chassis 100, the movable part 21 can be reset under the elastic force of the elastic reset structure 23 so that the protrusion 211 extends out of the shell 1.

[0065] Optionally, the elastic reset structure 23 includes a torsion spring 231, a rotating shaft 232, a first limiting portion 234, and a second limiting portion 214. The rotating shaft 232 is arranged on the inner wall of the housing 1, and the torsion spring 231 is sleeved on the rotating shaft 232. The first limiting portion 234 is arranged on the inner wall of the housing 1, and the supporting force arm of the torsion spring 231 abuts against the first limiting portion 234. The second limiting portion 214 is arranged on the moving member 21, and the free force arm of the torsion spring 231 abuts against the second limiting portion 214, so that the moving member 21 always has a clockwise direction (i.e. Figure 6 The trend of movement in the direction indicated by the arrow D).

[0066] Optionally, the elastic reset structure 23 further includes a limiting member 233 , which is detachably connected to the rotating shaft 232 and is used to limit the torsion spring 231 on the rotating shaft 232 to prevent the torsion spring 231 from falling off the rotating shaft 232 .

[0067] Specifically, the limiting member 233 is a nut, and the rotating shaft 232 is threadedly connected to the nut.

[0068] Optionally, the upper shell 11 , the second guide slot 24 , the first guide member 25 and the first limiting portion 234 are integrally formed.

[0069] Optionally, the first guide slot 213 , the moving member 21 , the second guide member 215 and the pushing portion 212 are integrally formed.

[0070] Optionally, in this embodiment, the torsion spring 231 , the rotating shaft 232 and the first limiting portion 234 are all arranged on a side of the moving member 21 away from the connection terminal.

[0071] Please refer to Figure 10 Alternatively, in other embodiments, the torsion spring 231 and the rotating shaft 232 may be arranged on the side of the moving member 21 close to the terminal, and the supporting force arm of the torsion spring 231 may directly contact the side wall of the upper shell 11, so that the side wall of the upper shell 11 can be used as the first limiting portion 234 in the previous embodiment, thereby reducing the number of parts and simplifying the structure. In this embodiment, the moving member 21 can always have a clockwise direction ( Figure 10 The trend of movement in the direction indicated by the arrow E).

[0072] Another aspect of the present invention provides a circuit breaker, comprising a housing 1 and a circuit board disposed in the housing 1 , and also comprising the above-mentioned anti-electric shock mechanism.

[0073] In another aspect, the present invention provides a power distributor, including a chassis 100 and the above-mentioned circuit breaker.

[0074] Optionally, the chassis 100 is provided with a second through hole 110, which is arranged corresponding to the first through hole 111. When the circuit breaker is installed in the chassis 100, the circuit breaker moves along the Figure 1 and Figure 3 The circuit breaker is installed into or removed from the chassis 100 in the direction indicated by the arrow C. When the circuit breaker is installed into the chassis 100, the chassis 100 squeezes the protrusion 211, causing it to be pressed into the housing 1 by the sidewall of the chassis 100 until the first through-hole 111 slides into the position where it mates with the second through-hole 110. At this point, the protrusion 211 is ejected from the first through-hole 111 and the second through-hole 110 under the elastic force of the torsion spring 231. When the protrusion 211 is retracted into the housing 1, the circuit breaker is disconnected; when the protrusion 211 is extended from the first through-hole 111 and the second through-hole 110, the circuit breaker is closed.

[0075] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all fall within the scope of protection of the present invention.

Claims

1. An anti-electric shock mechanism for a circuit breaker, characterized in that: include: A moving member (21) is disposed in a housing (1) of the circuit breaker and is movable relative to the housing (1); a protrusion (211) disposed on the moving member (21) and capable of extending out of the housing (1); A driver (22) is installed in the housing (1) and is electrically connected to the circuit board of the circuit breaker; A pushing portion (212) is provided on the moving member (21), and the pushing portion (212) is located on one side of the driver (22) and is tilted relative to the driver (22); When the circuit breaker is assembled or disassembled with the chassis (100) of the electrical distributor, the chassis (100) can act on the protrusion (211) and push the protrusion (211) into the housing (1), so that the pushing portion (212) moves and triggers the driver (22); The pushing portion (212) is arranged on one side of the moving member (21); an arc surface (2121) is provided at one end of the pushing portion (212) away from the moving member (21); and a pushing inclined surface (2122) connected to the arc surface (2121) is provided at one side of the pushing portion (212) close to the driver (22); When the pushing portion (212) moves, the pushing portion (212) can push the contact arm of the driver (22) to move along a first direction to trigger the driver (22); The pushing portion (212) is arranged obliquely relative to the moving member (21); the direction in which the moving member (21) moves relative to the housing (1) is a second direction; and the first direction is arranged perpendicular to the second direction.

2. The anti-electric shock mechanism of the circuit breaker according to claim 1, characterized in that: It also includes a first guide structure, which is arranged between the moving member (21) and the housing (1) and along the second direction, and is used to guide the moving member (21).

3. The anti-electric shock mechanism of the circuit breaker according to claim 2, characterized in that: The first guide structure includes: A first guide slot (213) is provided on one of the moving member (21) and the housing (1); A first guide member (25) is provided on the other of the movable member (21) and the housing (1) and is provided corresponding to the first guide slot (213). The first guide member (25) can extend into the first guide slot (213) and be slidably provided relative to the first guide slot (213).

4. The anti-electric shock mechanism of the circuit breaker according to any one of claims 1 to 3, characterized in that: It also includes a second guiding structure, which is arranged between the pushing portion (212) and the housing (1) and along the inclined direction of the pushing portion (212) for guiding the pushing portion (212).

5. The anti-electric shock mechanism of the circuit breaker according to claim 4, characterized in that: The second guide structure includes: a second guide slot (24) provided on one of the pushing portion (212) and the housing (1); A second guide member (215) is provided on the other of the pushing portion (212) and the housing (1) and is provided corresponding to the second guide slot (24). The second guide member (215) can extend into the second guide slot (24) and be slidably provided relative to the second guide slot (24).

6. The anti-electric shock mechanism of the circuit breaker according to claim 5, characterized in that: The second guide member (215) is arranged between the pushing portion (212) and the moving member (21); a first limiting side surface (2151) is provided on the first side of the pushing portion (212); a second limiting side surface (2152) is provided on the second side of the pushing portion (212); the first side of the pushing portion (212) and the second side of the pushing portion (212) are both located between the pushing portion (212) and the moving member (21); the first side of the pushing portion (212) and the second side of the pushing portion (212) are arranged opposite to each other; the first limiting side surface (2151) is provided along the pushing portion (212); 12), the second limiting side surface (2152) is arranged along the moving direction of the moving member (21), the second guide slot (24) is arranged on the inner wall of the shell (1), the second guide slot (24) includes a first limiting side wall (242) and a second limiting side wall (241), the second limiting side surface (2152) is arranged in parallel with the second limiting side wall (241) and can slide along the second limiting side wall (241), and the first limiting side surface (2151) is arranged in parallel with the first limiting side wall (242) and can slide along the first limiting side wall (242).

7. The anti-electric shock mechanism of the circuit breaker according to any one of claims 1 to 3, characterized in that: The invention also includes an elastic reset structure (23), which is arranged between the movable member (21) and the housing (1). When the circuit breaker is installed in the chassis (100) and when the circuit breaker is detached from the chassis (100), the movable member (21) can be reset under the elastic force of the elastic reset structure (23), so that the protrusion (211) extends out of the housing (1).

8. The anti-electric shock mechanism of the circuit breaker according to claim 7, characterized in that: The elastic reset structure (23) comprises: a torsion spring (231); A rotating shaft (232) is arranged on the inner wall of the housing (1), and the torsion spring (231) is sleeved on the rotating shaft (232); A first limiting portion (234) is provided on the inner wall of the housing (1), and a supporting force arm of the torsion spring (231) abuts against the first limiting portion (234); The second limiting portion (214) is provided on the moving member (21), and the free force arm of the torsion spring (231) abuts against the second limiting portion (214).

9. A circuit breaker comprising a housing (1) and a circuit board arranged in the housing (1), characterized in that: It also includes the anti-electric shock mechanism according to any one of claims 1 to 8.

10. A power distributor, comprising a chassis (100), characterized in that: Also included is the circuit breaker according to claim 9.

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