Circuit breaker capable of rapidly replacing controller

Abstract

A controller opening is formed in the front side face of the circuit breaker, a controller is installed in front of the controller opening, a connecting module is installed in the controller opening, a plug-in type integrated connector is installed in front of the connecting module, a module hook is arranged on the front face of the connecting module, and a plug-in type integrated connector is installed in front of the module hook. A pluggable integrated connector is also installed on the back face of the controller, a rotatable handle and a sliding block capable of preventing the handle from rotating are arranged on the front face of the controller, and the controller is disassembled and assembled through cooperation of the handle and the sliding block. The beneficial effects of reducing the difficulty of maintaining and replacing the controller of the circuit breaker, improving the maintenance efficiency and reducing the maintenance cost are achieved.

Description

Technical Field

[0001] The present application relates to the technical field of low-voltage circuit breakers, and in particular to a circuit breaker with a controller that can be quickly replaced. Background Art

[0002] The controller is one of the core components of the low-voltage circuit breaker and is used for various measurement and protection functions. During the long-term operation of the circuit breaker, the controller needs to be regularly inspected and maintained. When the controller is abnormal, it needs to be replaced promptly and quickly. The four-phase protection transformer, magnetic flux, switch status, external leakage transformer, four-phase voltage, and power resistor of the existing intelligent controller are plugged into the controller separately. There are many types of plug-in terminals, and the after-sales replacement takes a long time, is complex and error-prone, and must be replaced on site by professional after-sales personnel. Summary of the invention

[0003] In view of the deficiencies of the prior art, the present application provides a circuit breaker with a controller that can be quickly replaced, so as to solve the problem that the controller replacement of the circuit breaker in the prior art is inefficient and prone to errors.

[0004] To achieve the above objectives, this application is implemented through the following technical solutions:

[0005] A circuit breaker capable of quickly replacing a controller, wherein a controller opening is provided on the front side, a controller is installed in front of the controller opening, a connection module is installed in the controller opening, a plug-in integrated connector is installed in front of the connection module, a front edge of the connection module is provided with at least one pair of module hooks extending forward, the module hooks are symmetrical relative to the center of the front of the connection module, a plug-in integrated connector corresponding to the position of the integrated connector on the connection module is installed on the back of the controller, a hook avoidance hole is provided on the back of the controller at a position corresponding to the module hook on the connection module, when the controller is installed on the connection module, the module hook extends into the hook avoidance hole, a transverse accommodating frame open in front is provided in front of the hook avoidance hole on the back of the controller, a rotating shaft hole is provided on the top and bottom surfaces of the front part of the accommodating frame corresponding to the position of the module hook in the front and back directions, a handle rotating around the axis of the rotating shaft hole is installed on the rotating shaft hole, the handle comprises a transverse pulling arm and a water stop from the pulling arm near the rotating shaft hole end The handle hook extends vertically in the horizontal direction, and the rear part of the pull arm near the rotating shaft hole is also provided with a recessed platform in the up and down directions, and a handle rotating shaft extends out in the up and down directions. The handle extends into the upper and lower rotating shaft holes through the handle rotating shaft and rotates around the axis. When the controller is installed on the connection module, the handle hook hooks the module hook, and a torsion spring is installed on the handle rotating shaft, and one end of the torsion spring presses against the front side of the recessed platform of the pull arm, and the other end presses against the outside of the handle avoidance hole opened on the rear side of the accommodating frame. A longitudinal handle side block is arranged at the end of the far rotating shaft hole of the pull arm, and the accommodating frame is provided with left and right sliding grooves at the other end relative to the handle, and a slider is installed at the sliding groove, and guide blocks extend out of the slider up and down, and the slider slides left and right by extending the guide block into the sliding groove, and the slider is provided with a longitudinal limiting protrusion matched with the handle side block in front of the slider facing the near handle end, and a accommodating space open at the far handle end is arranged inside the slider, and a compression spring is installed in the accommodating space, and one end of the compression spring presses against the slider and the other end against the accommodating frame.

[0006] Preferably, there are two module hooks.

[0007] Preferably, the module hook positions are arranged at the upper left corner and the lower right corner of the connection module.

[0008] Preferably, the shaft hole is a through hole, and the slide groove is a bottomless groove.

[0009] Preferably, a collision slope is longitudinally arranged on the rear side of the handle side guard.

[0010] Preferably, an installation slope is provided on the rear side of the handle shaft.

[0011] Preferably, an installation slope is provided on the rear side of the guide block.

[0012] Preferably, the front surface of the slider is also provided with a shifting platform in the up and down directions.

[0013] Preferably, the front surface of the slider is also provided with a plurality of regularly arranged anti-skid longitudinal grooves.

[0014] Preferably, a sliding direction indicator is also provided on the front surface of the sliding block.

[0015] Compared with the prior art, the present solution has the following beneficial effects: the present invention provides a circuit breaker with a controller that can be quickly replaced. The controller is a separate module and can be quickly replaced when an abnormality occurs. The controller connection is optimized to an integral plug-in connection. Even if professional after-sales personnel are not on site, ordinary maintenance personnel can quickly replace the controller, which improves maintenance efficiency and reduces the attendance cost of on-site maintenance engineers. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1a This is a schematic diagram of a three-dimensional structure in which a controller is independent of a low-voltage circuit breaker according to an embodiment of the present application;

[0017] Figure 1b This is a schematic diagram of the three-dimensional structure of a controller after being installed on a low-voltage circuit breaker according to an embodiment of the present application;

[0018] Figure 2a This is a schematic diagram of a front view of a controller and a connection module according to an embodiment of the present application;

[0019] Figure 2b This is a schematic diagram of a rear side view of a controller and a connection module according to an embodiment of the present application;

[0020] Figure 3a This is a schematic diagram of a three-dimensional structure in which a controller to be replaced is pulled out according to an embodiment of the present application;

[0021] Figure 3b This is a schematic diagram of the three-dimensional structure of an embodiment of the present application after the controller to be replaced is unplugged or before being installed;

[0022] Figure 4 This is a front view schematic diagram of a controller and a connection module installed together with hatched lines according to an embodiment of the present application;

[0023] Figure 5a This is an AA cross-sectional view of an embodiment of the present application in which the controller and the connection module are assembled together and the handle is popped out;

[0024] Figure 5b This is an AA cross-sectional view of the controller and the connection module in one embodiment of the present application when the handle is reset;

[0025] Figure 5c for Figure 5b A schematic diagram of the details at J;

[0026] Figure 6 This is a schematic diagram of the three-dimensional structure of a handle according to an embodiment of the present application;

[0027] Figure 7 This is a schematic diagram of the three-dimensional structure of a slider according to an embodiment of the present application;

[0028] Among them, 1-low-voltage circuit breaker, 11-connection module, 111-module hook, 12-controller, 121-handle, 1211-handle hook, 1212-handle side stop, 1213-handle shaft, 1214-pull arm, 122-slider, 1221-limiting protrusion, 1222-guide block, 1223-anti-slip longitudinal groove, 1224-sliding direction indicator, 1225-dial table, 123-compression spring, 124-torsion spring. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0030] The present embodiment provides a technical solution: the present solution discloses a low-voltage circuit breaker 1 with a controller that can be quickly replaced, with a controller opening on the front side, a controller 12 installed in front of the controller opening, the controller 12 being a separate module, a connection module 11 installed in the controller opening of the low-voltage circuit breaker 1, a plug-in integrated connector installed in front of the connection module 11, and at least one pair of module hooks 111 extending forward are provided on both sides of the front edge of the connection module 11, the module hooks 111 are symmetrical relative to the center of the front of the connection module 11, and a module hook 111 is installed on the back of the controller 12 in a position aligned with the integrated connector on the connection module 11. The corresponding plug-in integrated connector, the back of the controller 12 corresponds to the position of the module hook 111 on the connection module 11, and a hook avoidance hole is opened. When the controller 12 is installed on the connection module 11, the module hook 111 extends into the hook avoidance hole. The position of the aforementioned module hook 111 can be set at a suitable symmetrical position between the front and the center of the connection module 11, as long as they are not on the same horizontal line in the up and down directions, so as to cause the front structures to interfere with each other. In this embodiment, there are two module hooks 111, and the positions are set at the upper left corner and the lower right corner of the connection module 11, which can not only meet the fixing requirements of the controller 12, but also try to simplify the materials. The overall plug-in connection between the controller 12 and the connection module 11 can reduce the difficulty and time of replacement brought to after-sales personnel by a wide variety of independent plug-in terminals, thereby improving maintenance efficiency.

[0031] A transverse accommodating frame with an open front is arranged in front of the hook avoidance hole on the back of the controller 12. In this embodiment, the controller 12 is divided into a front frame and a rear frame. The hook avoidance hole is on the back of the rear frame, and the transverse accommodating frame is on the upper part of the front frame. A rotation axis hole is opened on the top and bottom surfaces of the front of the accommodating frame in the front and rear directions corresponding to the position of the module hook 111. A handle 121 rotating around the axis of the rotation axis hole is installed on the rotation axis hole. The handle 121 includes a transverse pull arm 1214 and a handle hook 1211 extending vertically from the pull arm 1214 in the horizontal direction near the rotation axis hole end. The pull arm 1214 is also provided with a pull arm 1214 in the upper and lower directions at the rear of the rotation axis hole end. There is a recessed platform and a handle shaft 1213 extending in the up and down directions. The handle 121 extends into the upper and lower shaft holes through the handle shaft 1213 and rotates around the axis. When the controller 12 is installed on the connection module 11, the handle hook 1211 hooks the module hook 111. A torsion spring 124 is installed on the handle shaft 1213. One end of the torsion spring 124 presses against the front side of the recessed platform of the arm 1214, and the other end presses against the outside of the handle avoidance hole opened on the rear side of the accommodating frame. In this embodiment, the torsion spring 124 is on both the upper and lower handle shafts 1213, and is connected to form a whole by pressing against the end on the front side of the recessed platform of the arm 1214. A longitudinal handle side stop 1212 is provided at the end of the arm 1214 far from the shaft hole.

[0032] The other end of the accommodating frame opposite to the handle 121 is provided with left and right sliding grooves, and a slider 122 is installed in the sliding groove. The slider 122 has guide blocks 1222 extending from the top and bottom, and the slider 122 slides left and right by extending the guide block 1222 into the sliding groove. The slider 122 is provided with a longitudinal limiting protrusion 1221 that cooperates with the handle side guard 1212 at the end facing the handle 121. The slider 122 is provided with a accommodating space open at the end far from the handle 121, and a compression spring 123 is installed in the accommodating space, and one end of the compression spring 123 presses against the slider 122 and the other end presses against the accommodating frame. In order to avoid the need to manually push the slider 122 and allow the handle 121 to rotate inwardly into place when installing the new controller 12, a collision slope is longitudinally arranged on the rear side of the handle side guard 1212, so that when the pull arm 1214 rotates and hits the inner side of the slider 122, the slider 122 slides outwardly by squeezing the limiting protrusion 1221, and when the handle side guard 1212 rotates to the rear side of the limiting protrusion 1221, it returns to its position under the action of the compression spring 123 to block the outward rotation path of the handle 121.

[0033] In order to facilitate the installation of the handle shaft 1213 on the handle 121 into the shaft hole and the guide block 1222 on the slider 122 into the slide groove, in this embodiment, the rear side of the handle shaft 1213 and the rear side of the guide block 1222 are both provided with an installation slope. When the parts are installed, the handle 121 and the slider 122 are pushed into the receiving frame from the front to install the handle shaft 1213 into the shaft hole and the guide block 1222 into the slide groove. It is also possible to open upper and lower through holes at the handle shaft 1213 of the handle 121 and the guide block 1222 of the slider 122, and use an independent handle shaft 12 13 and an independent guide block 1222. After the handle 121 and the slider 122 are placed into the appropriate position of the accommodating frame from the front, the independent handle shaft 1213 and the independent guide block 1222 are respectively inserted into the handle 121 and the slider 122 from the upper side of the shaft hole and the slide groove to form an integral handle 121 and slider 122 by interference fit. For the versatility of these two installation methods, the shaft hole in this embodiment is set as a through hole, and the slide groove is set as a bottomless groove. When only the former method is used, the shaft hole can be set as a blind hole, and the slide groove can be set as a bottomed groove.

[0034] In order to make it more convenient to move the slider 122, the front surface of the slider 122 of this embodiment is also provided with a dial platform 1225 in the up and down directions. At the same time, a number of regularly arranged longitudinal grooves 1223 are provided on the front surface of the slider 122 to achieve an anti-slip effect for the hands. In order to facilitate the indication of the direction of moving the slider 122, the front surface of the slider 122 of this embodiment is also provided with a sliding direction indicator 1224 pointing outward. In this embodiment, the arrow on the upper slider 122 points to the right, and the arrow on the lower slider 122 points to the left.

[0035] When in use, if the abnormal controller 12 needs to be replaced, the slider 122 is pushed outward by hand, and when the slider 122 moves in the opposite direction of the handle 121, the pull arm 1214 of the handle 121 rotates and pops out under the action of the torsion spring 124, perpendicular to the front panel of the controller 12, and the abnormal controller 12 is pulled out by pulling the pull arm 1214 of the handle 121 forward, and a new normal controller 12 is taken, and the pull arm 1214 is held to push the controller 12 forward. When the handle 121 pops out, the new controller 12 is plugged into the connection module 11, and the handle 121 is rotated inward to reset, and the handle side guard 1212 rotates to the rear side of the limiting protrusion 1221 to squeeze the slider 122 to slide outward, and on the inside, the module hook 111 of the connection module 11 is interlocked with the handle hook 1211 on the handle 121, so as to limit the rotation of the handle and prevent the controller 12 from loosening. At the same time, the slider 122 uses the limiting protrusion 1221 to limit the popping out of the handle 121 under the action of the compression spring 123, so that the controller 12 can be quickly replaced without removing other parts and components.

[0036] In the description of the present application, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, if the terms "first", "second", etc. appear, they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0037] The above is only a preferred specific implementation method of the present scheme, but the protection scope required by the present scheme is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes according to the technical scheme and inventive concept of the present application within the technical scope disclosed in the present application, which should be covered by the protection scope of the present application.

Claims

1. A circuit breaker with a controller that can be quickly replaced, wherein a controller opening is opened on the front side, and a controller (12) is installed in front of the controller opening, wherein: A connection module (11) is installed in the opening of the controller, a plug-in integrated connector is installed in front of the connection module (11), and pairs of module hooks (111) extending forward are arranged on both sides of the front edge of the connection module (11), and the module hooks (111) are symmetrical relative to the center of the front of the connection module (11). A plug-in integrated connector corresponding to the position of the integrated connector on the connection module (11) is installed on the back of the controller (12), and a hook avoidance hole is opened on the back of the controller (12) at the position corresponding to the module hook (111) on the connection module (11). The controller (12) is installed on the connection module When the module (11) is connected, the module hook (111) extends into the hook avoidance hole, and a horizontal accommodating frame with an open front is arranged in front of the hook avoidance hole on the back of the controller (12), and a rotating shaft hole is opened on the top and bottom surfaces of the front part of the accommodating frame in the front and rear directions corresponding to the position of the module hook (111), and a handle (121) rotating around the axis of the rotating shaft hole is installed on the rotating shaft hole, and the handle (121) includes a horizontal pull arm (1214) and a handle hook (1211) extending vertically in the horizontal direction from the end of the pull arm (1214) near the rotating shaft hole, and a concave platform is also arranged in the upper and lower directions at the rear of the pull arm (1214) near the rotating shaft hole and extending in the upper and lower directions. A handle shaft (1213) is provided, and the handle (121) extends into the upper and lower shaft holes through the handle shaft (1213) to rotate around the axis. When the controller (12) is installed on the connection module (11), the handle hook (1211) hooks the module hook (111). A torsion spring (124) is installed on the handle shaft (1213). One end of the torsion spring (124) presses against the front side of the recessed platform of the pull arm (1214), and the other end presses against the outside of the handle avoidance hole opened on the rear side of the accommodating frame. A longitudinal handle side stop (1212) is provided at the end of the pull arm (1214) far from the shaft hole. The accommodating frame is opposite to the other end of the handle (121). A left-right sliding groove is opened at the upper and lower ends, and a slider (122) is installed at the sliding groove. A guide block (1222) extends from the upper and lower ends of the slider (122) and the slider (122) slides left and right by extending the guide block (1222) into the sliding groove. The slider (122) is provided with a longitudinal limiting protrusion (1221) that cooperates with the handle side guard (1212) on the end near the handle (121). The slider (122) is provided with a receiving space open at the end far from the handle (121). A compression spring (123) is installed in the receiving space, and one end of the compression spring (123) is pressed against the slider (122) and the other end is pressed against the receiving frame.

2. The circuit breaker with a quickly replaceable controller according to claim 1, characterized in that: There are two module hooks (111).

3. The circuit breaker with a quick-change controller according to claim 2, characterized in that: The module hooks (111) are arranged at the upper left corner and the lower right corner of the connection module (11).

4. The circuit breaker with a quick-change controller according to claim 1, characterized in that: The rotating shaft hole is a through hole, and the sliding groove is a bottomless groove.

5. The circuit breaker with a quick-change controller according to claim 1, characterized in that: The rear side of the handle side guard (1212) is longitudinally provided with a collision slope.

6. The circuit breaker with a quick-change controller according to claim 1, characterized in that: The rear side of the handle rotating shaft (1213) is provided with an installation slope.

7. The circuit breaker with a quick-change controller according to claim 1, characterized in that: The rear side of the guide block (1222) is provided with an installation slope.

8. The circuit breaker with a quick-change controller according to claim 1, characterized in that: The front surface of the slider (122) is also provided with a shifting platform (1225) in the up and down directions.

9. The circuit breaker with a quick-change controller according to claim 1, characterized in that: The front surface of the sliding block (122) is also provided with a plurality of regularly arranged anti-slip longitudinal grooves (1223).

10. The circuit breaker with a quick-change controller according to claim 1, characterized in that: The front surface of the sliding block (122) is also provided with a sliding direction indicator (1224).

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