An intelligent miniature circuit breaker with automatic closing function

Abstract

The present invention relates to the technical field of circuit breakers, and in particular to an intelligent miniature circuit breaker with an automatic closing function, comprising a circuit breaker body and an insulating handle, wherein a closing device is fixedly connected to the front end of the circuit breaker body, an insulating handle is fixedly connected to the bottom end of the closing device, and the insulating handle is rotatably connected to the circuit breaker body, the closing device comprises a protective shell, a first motor, a first storage battery, a square column, a threaded rod and a pull rope, the front end of the circuit breaker body is fixedly connected to the protective shell, and the inner side of the top end of the protective shell is fixedly connected to the first motor. In the present invention, by providing the first motor, the first storage battery, the square column, the threaded rod and the pull rope, when it is necessary to close the circuit breaker body, a staff member controls the first motor to rotate with the threaded rod on the inner side of the square column through a control switch, and pulls the insulating handle through the square column, thereby realizing automatic closing of the circuit breaker body, which is simple to operate and convenient for the staff member to use.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit breakers, and in particular to an intelligent miniature circuit breaker with an automatic closing function. Background Art

[0002] A circuit breaker is a switching device that can close, carry and disconnect current under normal circuit conditions and can close, carry and disconnect current under abnormal circuit conditions within a specified time. Circuit breakers are divided into high-voltage circuit breakers and low-voltage circuit breakers according to their scope of use. The boundary between high and low voltage is relatively vague. Generally, those above 3kV are called high-voltage electrical appliances. Circuit breakers can be used to distribute electrical energy, start asynchronous motors infrequently, and protect power lines and motors. They can automatically cut off the circuit when they have serious overloads or short circuits and undervoltage faults. Their function is equivalent to a combination of a fuse-type switch and an over- and under-temperature relay. Moreover, there is generally no need to change components after disconnecting the fault current. At present, they have been widely used.

[0003] Most of the circuit breakers currently on the market have simple structures and single functions. Since the circuit breakers are installed at high places, users need to use ladders or long tools to close the circuit breakers when they need to be closed, which is inconvenient for users. At the same time, the circuit breaker needs to press the test button once a month. Since the circuit breaker is installed at a high place, it is also inconvenient for the staff to use. Therefore, in view of the above problems, an intelligent miniature circuit breaker with automatic closing function is proposed. Summary of the invention

[0004] The object of the present invention is to provide an intelligent miniature circuit breaker with an automatic closing function to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] An intelligent miniature circuit breaker with an automatic closing function comprises a circuit breaker body and an insulating handle, wherein a closing device is fixedly connected to the front end of the circuit breaker body, an insulating handle is fixedly connected to the bottom end of the closing device, and the insulating handle is rotatably connected to the circuit breaker body, a leakage button and a test button are fixedly connected to the inner side of the front end of the circuit breaker body, a connecting device is fixedly connected to the front end of the circuit breaker body, a pressing device is fixedly connected to one end of the connecting device, a control switch is arranged on the right side of the circuit breaker body, the closing device comprises a protective shell, a first motor, a first battery, a square column, a threaded rod and a pull rope, the front end of the circuit breaker body is fixedly connected to the protective shell, the inner side of the top end of the protective shell is fixedly connected to the first motor, the end of the main shaft of the first motor is fixedly connected to the threaded rod, the outer side of the threaded rod is spirally connected to the square column, and the square column is slidably connected to the protective shell, the bottom end of the square column is fixedly connected to the pull rope, and the pull rope is fixedly connected to the insulating handle.

[0007] Preferably, a thread is provided on the inner side of the square column, and the threaded rod is spirally connected to the square column via the thread.

[0008] Preferably, the pressing device includes a fixed shell, a second motor, a connecting shaft, a protrusion, a second battery, a controller, a pressing block, a first spring and a limit plate, one end of the pressing device is fixedly connected to the fixed shell, the inner side of the front end of the fixed shell is fixedly connected to the controller, the right side of the controller is provided with a second battery, the right end of the fixed shell is fixedly connected to the second motor, the end of the main shaft of the second motor is fixedly connected to the connecting shaft, and the connecting shaft is rotatably connected to the fixed shell, the outer side of the connecting shaft is fixedly connected to the protrusion, the inner side of the limit plate is slidably connected to the pressing block, the outer side of the pressing block is provided with a first spring, and the top and bottom ends of the first spring are respectively fixedly connected to the pressing block and the limit plate.

[0009] Preferably, there are two pressing blocks in total, and the pressing block on the left is located on the upper side of the leakage button, and the pressing block on the right is located on the upper side of the test button.

[0010] Preferably, there are two protrusions in total, and they are symmetrically distributed on the upper and lower sides of the horizontal center line of the connecting shaft.

[0011] Preferably, the connecting device includes a limit frame, a second spring, a pull rod, a pressure plate, a fixed frame and a side plate, the front end of the connecting device is fixedly connected to the fixed frame, the inner side of the fixed frame is engaged with a side plate, and the side plate is fixedly connected to the fixed shell, the bottom end of the side plate is fixedly connected to the limit frame, the inner side of the limit frame is slidably connected to a pressure plate, and the pressure plate is located in front of the side plate.

[0012] Preferably, a second spring is fixedly connected to the inner side of the bottom end of the limiting frame, and the second spring is fixedly connected to the pressure plate.

[0013] Preferably, one end of the pressing plate is fixedly connected to a pull rod.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. In the present invention, by providing a protective shell, a first motor, a first battery, a square column, a threaded rod and a pull rope, when the circuit breaker body needs to be closed, the staff controls the first motor with the threaded rod to rotate inside the square column through the control switch, and pulls the insulating handle through the square column, thereby realizing automatic closing of the circuit breaker body. The operation is simple and convenient for the staff to use.

[0016] 2. In the present invention, by setting a fixed shell, a second motor, a connecting shaft, a protrusion, a second battery, a controller, a pressing block, a first spring and a limit plate, when the user needs to press the test button or the leakage button, the second motor is controlled to rotate with the protrusion under the action of the control switch, and the leakage switch or the test button is pressed by the pressing block under the action of the protrusion, which is convenient for the user's operation.

[0017] 3. In the present invention, by setting the limit frame, the second spring, the pull rod, the pressure plate, the fixed frame and the side plate, the side plate and the fixed shell can be quickly installed under the action of the pressure plate, and it is also convenient to disassemble the fixed shell. The operation is simple, which is convenient for users to use and to repair and replace the internal parts of the fixed shell at a later time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the internal installation structure of the closing device of the present invention;

[0020] Figure 3 It is a schematic diagram of the internal top view installation structure of the pressing device of the present invention;

[0021] Figure 4 It is a schematic diagram of the enlarged installation structure of the connecting device of the present invention.

[0022] In the figure: 1-closing device, 101-protective shell, 102-first motor, 103-first battery, 104-square column, 105-threaded rod, 106-pull rope, 2-pressing device, 201-fixed shell, 202-second motor, 203-connecting shaft, 204-bump, 205-second battery, 206-controller, 207-pressing block, 208-first spring, 209-limiting plate, 3-connecting device, 301-limiting frame, 302-second spring, 303-pull rod, 304-pressing plate, 305-fixed frame, 306-side plate, 4-circuit breaker body, 5-insulating handle, 6-leakage button, 7-test button, 8-control switch. DETAILED DESCRIPTION

[0023] Example

[0024] See also Figure 1-4 , the present invention provides a technical solution:

[0025] An intelligent miniature circuit breaker with an automatic closing function comprises a circuit breaker body 4 and an insulating handle 5, wherein a closing device 1 is fixedly connected to the front end of the circuit breaker body 4, an insulating handle 5 is fixedly connected to the bottom end of the closing device 1, and the insulating handle 5 is rotatably connected to the circuit breaker body 4, a leakage button 6 and a test button 7 are fixedly connected to the inner side of the front end of the circuit breaker body 4, a connecting device 3 is fixedly connected to the front end of the circuit breaker body 4, a pressing device 2 is fixedly connected to one end of the connecting device 3, a control switch 8 is arranged on the right side of the circuit breaker body 4, and the closing device 1 comprises a protective shell 101, a first motor 102, and a first storage battery 103. , square column 104, threaded rod 105 and pull rope 106, the front end of the circuit breaker body 4 is fixedly connected with a protective shell 101, the inner side of the top of the protective shell 101 is fixedly connected with a first motor 102, the end of the main shaft of the first motor 102 is fixedly connected with a threaded rod 105, and the threaded rod 105 can be rotated by the first motor 102, the outer side of the threaded rod 105 is spirally connected with a square column 104, and the square column 104 is slidably connected to the protective shell 101, the bottom end of the square column 104 is fixedly connected with a pull rope 106, and the pull rope 106 is fixedly connected to the insulating handle 5, and the pull rope 106 will not affect the insulating handle 5 from jumping downward.

[0026] The inner side of the square column 104 is provided with a thread, and the threaded rod 105 is spirally connected to the square column 104 through the thread, and the threaded rod 105 is convenient for moving the square column 104 up and down. The pressing device 2 includes a fixed shell 201, a second motor 202, a connecting shaft 203, a protrusion 204, a second battery 205, a controller 206, a pressing block 207, a first spring 208 and a limiting plate 209. One end of the pressing device 2 is fixedly connected to the fixed shell 201, and the inner side of the front end of the fixed shell 201 is fixedly connected to the controller 206. The second battery 205 is arranged on the right side of the controller 206, and the right end of the fixed shell 201 is fixedly connected to the second motor 202. The end of the main shaft of the second motor 202 is fixedly connected with a connecting shaft 203, and the connecting shaft 203 is rotatably connected to the fixed shell 201. The outer side of the connecting shaft 203 is fixedly connected with a protrusion 204. The inner side of the limiting plate 209 is slidably connected with a pressing block 207. The outer side of the pressing block 207 is provided with a first spring 208, and the top and bottom ends of the first spring 208 are respectively fixedly connected to the pressing block 207 and the limiting plate 209. The controller 206, the second motor 202 and the control switch 8 are powered separately by the second battery 205. There are two pressing blocks 207 in total, and the pressing block 207 on the left side is on the upper side of the leakage button 6, and the pressing block 207 on the right side is on the upper side of the leakage button 6. The pressing block 207 is located on the upper side of the test button 7, which is convenient for the pressing block 207 to press the leakage button 6 and the test button 7. There are two protrusions 204 in total, and they are symmetrically distributed on the upper and lower sides of the horizontal center line of the connecting shaft 203, which can ensure that when one of the protrusions 204 presses the pressing block 207, the other protrusion 204 does not press the pressing block 207. The connecting device 3 includes a limit frame 301, a second spring 302, a pull rod 303, a pressure plate 304, a fixed frame 305 and a side plate 306. The front end of the connecting device 3 is fixedly connected to the fixed frame 305, and the inner side of the fixed frame 305 is engaged with the side plate 306, and the side plate 306 is fixed to the fixed shell 201 is fixedly connected, the bottom end of the side plate 306 is fixedly connected to the limiting frame 301, the inner side of the limiting frame 301 is slidably connected with a pressure plate 304, and the pressure plate 304 is in front of the side plate 306, the inner side of the bottom end of the limiting frame 301 is fixedly connected with a second spring 302, and the second spring 302 is fixedly connected to the pressure plate 304. When the pressing device 2 is in normal use, the pressure plate 304 will be at the front end of the side plate 306 under the action of the second spring 302, and the side plate 306 is limited by the pressure plate 304, thereby limiting the fixed shell 201, and one end of the pressure plate 304 is fixedly connected with a pull rod 303, which is convenient for pulling the pressure plates 304 on the left and right sides at the same time.

[0027] Working process: In the present invention, the user needs to fix the control switch 8 where the user can touch it. When the circuit breaker body 4 needs to be closed, the staff first controls the second motor 202 to rotate with the protrusion 204 through the control switch 8. At the same time, under the action of the controller 206, the connecting shaft 203 and the protrusion 204 press the leakage button 6, so that the leakage button 6 retracts into a part of the inner side of the circuit breaker body 4. Then the staff controls the first motor 102 to rotate with the threaded rod 105 on the inner side of the square column 104 through the control switch 8, so that the threaded rod 105 pulls the insulating handle 5 upward through the pull rope 106 until the insulating handle 5 is in the closed state. At the same time, the staff controls the first motor 102 to reverse, so that the square column 104 moves downward with the pull rope 106, so that the pull rope 106 is in a relaxed state, to ensure that the insulating handle 5 is in a short circuit state. When the test button 7 needs to be pressed, the staff controls the second motor 202 to rotate with the protrusion 204 through the control switch 8, and presses the pressing block 207 through the protrusion 204 on the left side, and then the pressing block 207 gradually moves downward along the limiting plate 209, and the pressing of the test button 7 is realized by the pressing block 207. The operation is simple and convenient for users to use. When the pressing block 207 is removed from the top of the test button 7, the pressing block 207 is bounced upward under the action of the first spring 208, so that the pressing block 207 waits for the next round of use. When the pressing device 2 is used normally, the pressing plate 304 is placed at the front end of the side plate 306 under the action of the second spring 302, and the side plate 306 is limited by the pressing plate 304, thereby limiting the fixed shell 201.

[0028] The same parts as those in Example 2 and Example 1 will not be repeated here. The difference is that when the pressing device 2 needs to be disassembled, the staff pulls the pressing plate 304 downward through the pull rod 303, so that the pressing plate 304 gradually moves downward along the limiting frame 301. At the same time, the pressing plate 304 will also compress the second spring 302. When the pressing plate 304 does not block the side plate 306, the pressing device 2 can be taken out from the inner side of the fixed frame 305.

[0029] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above is only a preferred implementation of the present invention. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present invention.

Claims

1. An intelligent miniature circuit breaker with an automatic closing function, comprising a circuit breaker body (4) and an insulating handle (5), characterized in that: The front end of the circuit breaker body (4) is fixedly connected to a closing device (1), the bottom end of the closing device (1) is fixedly connected to an insulating handle (5), and the insulating handle (5) is rotatably connected to the circuit breaker body (4), the inner side of the front end of the circuit breaker body (4) is fixedly connected to a leakage button (6) and a test button (7), the front end of the circuit breaker body (4) is fixedly connected to a connecting device (3), one end of the connecting device (3) is fixedly connected to a pressing device (2), a control switch (8) is arranged on the right side of the circuit breaker body (4), and the closing device (1) comprises a protective shell (101), a first motor (102), a first storage A battery (103), a square column (104), a threaded rod (105) and a pull rope (106); the front end of the circuit breaker body (4) is fixedly connected to a protective shell (101); the inner side of the top end of the protective shell (101) is fixedly connected to a first motor (102); the end of the main shaft of the first motor (102) is fixedly connected to a threaded rod (105); the outer side of the threaded rod (105) is spirally connected to a square column (104); the square column (104) is slidably connected to the protective shell (101); the bottom end of the square column (104) is fixedly connected to a pull rope (106); and the pull rope (106) is fixedly connected to an insulating handle (5).

2. The intelligent miniature circuit breaker with automatic closing function according to claim 1 is characterized in that: The inner side of the square column (104) is provided with a thread, and the threaded rod (105) is spirally connected to the square column (104) via the thread.

3. The intelligent miniature circuit breaker with automatic closing function according to claim 1 is characterized in that: The pressing device (2) comprises a fixed shell (201), a second motor (202), a connecting shaft (203), a convex block (204), a second storage battery (205), a controller (206), a pressing block (207), a first spring (208) and a limiting plate (209); one end of the pressing device (2) is fixedly connected to the fixed shell (201); the inner side of the front end of the fixed shell (201) is fixedly connected to the controller (206); the second storage battery (205) is arranged on the right side of the controller (206); the right side of the fixed shell (201) is fixedly connected to the controller (206); The end of the second motor (202) is fixedly connected to the second motor (202), the end of the main shaft of the second motor (202) is fixedly connected to the connecting shaft (203), and the connecting shaft (203) is rotatably connected to the fixed shell (201), the outer side of the connecting shaft (203) is fixedly connected to a protrusion (204), the inner side of the limiting plate (209) is slidably connected to a pressing block (207), the outer side of the pressing block (207) is provided with a first spring (208), and the top and bottom ends of the first spring (208) are fixedly connected to the pressing block (207) and the limiting plate (209) respectively.

4. The intelligent miniature circuit breaker with automatic closing function according to claim 3 is characterized in that: There are two pressing blocks (207) in total, and the pressing block (207) located on the left side is located on the upper side of the leakage button (6), and the pressing block (207) located on the right side is located on the upper side of the test button (7).

5. The intelligent miniature circuit breaker with automatic closing function according to claim 3 is characterized in that: There are two protrusions (204) in total, which are symmetrically distributed on the upper and lower sides of the horizontal center line of the connecting shaft (203).

6. The intelligent miniature circuit breaker with automatic closing function according to claim 1, characterized in that: The connecting device (3) comprises a limit frame (301), a second spring (302), a pull rod (303), a pressure plate (304), a fixed frame (305) and a side plate (306); the front end of the connecting device (3) is fixedly connected to the fixed frame (305); the inner side of the fixed frame (305) is engaged with the side plate (306), and the side plate (306) is fixedly connected to the fixed shell (201); the bottom end of the side plate (306) is fixedly connected to the limit frame (301); the inner side of the limit frame (301) is slidably connected to the pressure plate (304), and the pressure plate (304) is located in front of the side plate (306).

7. The intelligent miniature circuit breaker with automatic closing function according to claim 6, characterized in that: A second spring (302) is fixedly connected to the inner side of the bottom end of the limiting frame (301), and the second spring (302) is fixedly connected to the pressing plate (304).

8. The intelligent miniature circuit breaker with automatic closing function according to claim 6, characterized in that: One end of the pressing plate (304) is fixedly connected to a pull rod (303).

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