CN213660319U - Novel electric operating mechanism for miniature circuit breaker - Google Patents
Novel electric operating mechanism for miniature circuit breaker Download PDFInfo
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- CN213660319U CN213660319U CN202120018858.6U CN202120018858U CN213660319U CN 213660319 U CN213660319 U CN 213660319U CN 202120018858 U CN202120018858 U CN 202120018858U CN 213660319 U CN213660319 U CN 213660319U
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Abstract
The utility model provides a novel electric operating mechanism for a miniature circuit breaker, which comprises an operating mechanism main body which is arranged and fixed on a circuit breaker body; the operating mechanism main body comprises a shell, a switching-on and switching-off operating mechanism, an electric leakage tripping device for circuit breaker electric leakage protection, and a control and monitoring module which is arranged in the operating mechanism main body and is used for controlling the starting and stopping of a driving mechanism in the operating mechanism main body; the shell is hollow and is composed of a bottom shell and a face cover which are detachably spliced together; the inner sides of the bottom shell and the surface cover are respectively symmetrically provided with sliding chutes; the switching-on and switching-off operation mechanism comprises a handle, a square shaft, and a driving mechanism, a driving piece, a reversing piece, a switching-on and switching-off rod and a light reflecting block which are respectively arranged in the shell. The utility model has sufficient available space of the control part and strong expandability of the product function; the automatic and manual independent operation or the mixed operation does not have the interference phenomenon, the integration level of functional characteristics is high, the overall layout is standard, and the structure is compact; the manufacturing process of the PCBA is simplified, and the cost is saved.
Description
Technical Field
The utility model relates to a circuit breaker technical field, concretely relates to miniature circuit breaker is with novel electric operating mechanism.
Background
The miniature circuit breaker is widely applied to a low-voltage distribution network, is mainly used in various places such as industry, commerce, high-rise and civil residence and can perform overcurrent protection and leakage protection on electric equipment such as a motor, a distribution line and a lighting circuit. Miniature circuit breaker on the existing market mostly is gear mechanism, adopts the incomplete gear of gear train cooperation more, when having the combined floodgate, gear interference causes the circuit breaker to thread off passively easily, and manual combined floodgate automatic separating brake also has the interference, and the effective gear of combined floodgate need all force through interfering the gear, easily causes gear damage and dropout problem, and multistage gear structure occupies that there is the space also great relatively.
SUMMERY OF THE UTILITY MODEL
In view of the above problem, an object of the present invention is to provide a compact structure, which can be operated automatically and manually or operated in a hybrid manner without any interference, and has the advantages of high integration, standard overall layout, compact structure and cost saving.
The specific technical scheme is as follows:
the utility model provides a miniature circuit breaker is with novel electric operating mechanism, includes that the installation is fixed the operating mechanism main part on the circuit breaker body (the operating mechanism main part passes through rivet installation together with the circuit breaker body usually, and both become an inseparable material object), and the operating mechanism body designs into a modulus wide (18 mm), and the detection signal line passes through on the drain pan square hole on the casing is connected to control monitoring module (main control panel). The operating mechanism main body comprises a shell, a switching-on and switching-off operating mechanism, an electric leakage tripping device for circuit breaker electric leakage protection, and a control monitoring module (namely a main control board, which adopts a conventional circuit breaker main control board) which is arranged in the operating mechanism main body and is used for controlling the driving mechanism in the operating mechanism main body to start and stop; the shell is hollow and is composed of a bottom shell and a face cover which are detachably spliced together; the inner sides of the bottom shell and the surface cover are respectively and symmetrically provided with sliding chutes.
The switching-on and switching-off operation mechanism comprises a handle, a square shaft, and a driving mechanism, a driving piece, a reversing piece, a switching-on and switching-off rod and a light reflecting block which are respectively arranged in the shell.
The handle is rotatably mounted in the circuit breaker body.
The front end of the square shaft penetrates through the bottom shell and extends into the shell, and the rear end of the square shaft is inserted into the handle and can rotate along with the handle;
the driving mechanism is a speed reducing motor which is arranged in the shell and the motor shaft of the driving mechanism points to the right side of the shell.
The left side of the driving piece is arranged on a motor shaft of the speed reducing motor through a mounting hole arranged on the driving piece and can rotate along with the motor shaft; a driving groove is arranged on the periphery of the driving piece; and a light reflecting block mounting hole is formed in the driving groove.
The reversing piece is arranged in the shell through a first guide strip and a second guide strip which are arranged on the front side and the rear side of the reversing piece and are respectively inserted into the sliding grooves in the bottom shell and the inner side of the surface cover; the bottom of the reversing piece is provided with a first reversing column which is meshed in the driving groove, the first reversing column can move along the driving groove under the driving of the driving piece and drive the reversing piece to move left and right along the sliding groove, the top of the reversing piece protrudes upwards, and two sides of the reversing piece are provided with a second reversing column respectively.
The opening and closing rod is sleeved on the front end of the square shaft through a square hole arranged on the rear side of the rod body of the opening and closing rod; the front side of the top of the body of the opening and closing rod is provided with an opening and closing rod groove; and the bottom of the body of the opening and closing rod is provided with an upper arm and a lower arm of the opening and closing rod, and the bottom of the upper arm and the lower arm of the opening and closing rod is provided with an inverted U-shaped groove sleeved on the second reversing column.
The light reflecting blocks are multiple and are respectively arranged in the light reflecting block mounting holes and the opening and closing rod grooves.
The control monitoring module is arranged in the shell and positioned on the front side of the opening and closing operation mechanism, a photoelectric sensor is arranged on the control monitoring module corresponding to the light reflecting blocks, and the control monitoring module controls the start and stop of the speed reducing motor through light signals received by the photoelectric sensor and reflected by the light reflecting blocks at different positions.
Furthermore, the leakage tripping device is arranged in the shell and comprises a tripping coil, a linkage rod, a reset torsion spring, a reset spring, a movable iron core and a circuit breaker tripping linkage shaft; the tripping coil is arranged in the shell and is positioned on the right side of the opening and closing operation mechanism; the linkage rod is positioned between the tripping coil and the opening and closing operation machine, a first column body is arranged on the front side face of the top of the linkage rod, a second column body is arranged on the front side face of the bottom of the linkage rod, a buckle is arranged at the right end of the front side face of the linkage rod, a waist-shaped hole of the linkage rod is arranged on the left side of the front side face of the linkage rod, a shaft hole is formed in the first column body, and the linkage rod is sleeved on a bottom shell column preset on the inner side of the; the first reset torsion spring is sleeved on the first column body, the first torsion spring arm of the reset torsion spring is clamped on the inner side surface of the bottom shell, and the second torsion spring arm is placed at the clamping buckle; the reset spring is arranged in an inner hole in the middle of the tripping coil; the left side of the movable iron core is sleeved on the second cylinder through a movable iron core waist-shaped hole arranged on the movable iron core, and a core rod on the right side of the movable iron core extends into an inner hole in the middle of the tripping coil to be in contact with the reset spring; one end of the circuit breaker tripping linkage shaft is arranged in the circuit breaker body, and the other end of the circuit breaker tripping linkage shaft penetrates through the bottom shell and extends into the shell to be placed in the linkage rod waist-shaped hole.
Furthermore, a linkage rod rib is arranged at the left lower part of the front side surface of the linkage rod; and a locking strip which can push the linkage rod rib to rotate and then drive the circuit breaker tripping linkage shaft to rotate to trip the circuit breaker is correspondingly arranged on the right side surface of the driving piece.
Furthermore, the opening and closing operation mechanism and the electric leakage tripping device are arranged in the shell in a straight line shape.
Further, the speed reducing motor and the driving part are arranged on the same axis.
Further, the driving piece is of a cylindrical structure.
Furthermore, the driving grooves comprise a first groove, a second groove, a third groove and a fourth groove which are concavely arranged on the periphery of the driving piece respectively; the first groove is obliquely arranged around the front side face of the periphery of the driving piece from left to right; the second groove is in a V-shaped structure and is arranged on the rear side face of the periphery of the driving part, and the width of the second groove is gradually increased from front to back around the periphery of the driving part; the groove III is arranged on the front side of the periphery of the driving piece and is formed by a groove body which is transversely arranged and a groove body which is vertically arranged around the periphery of the driving piece and is mutually communicated, and the vertical groove body of the groove III is positioned on the right side of the periphery of the driving piece; the groove IV is arranged at the rear side of the periphery of the driving piece and consists of a groove body which is transversely arranged and a groove body which is vertically arranged around the periphery of the driving piece and is mutually communicated, the notch of the groove IV vertical groove body is communicated with the notch at the left side of the rear end of the groove II, and the groove IV vertical groove body is positioned at the left side of the periphery of the driving piece; the notch at the front end of the second groove is communicated with the notch at the left end of the first groove at the notch at the left end of the third transverse groove body of the groove in an intersecting manner, and a first light reflecting block mounting hole is formed at the intersecting point; the right side notch of the rear end of the second groove is communicated with the right side notch of the first groove and the notches of the three vertical groove bodies at the right side notches of the four transverse groove bodies, and a second light reflecting block mounting hole is formed in the intersection point.
Furthermore, the number of the photoelectric sensors is four, wherein two photoelectric sensors are correspondingly arranged below the first reflecting block mounting hole and the second reflecting block mounting hole on the driving piece one by one; the other two photoelectric sensors are respectively and correspondingly arranged right in front of the position of the groove of the switching-on and switching-off rod when the switching-on and switching-off rod is in the switching-on position or the switching-off position.
The utility model has the advantages that:
(1) compact layout of internal mechanism parts can be realized, and minimum design of the size in the thickness direction and the height direction is realized; the available space of the control part is enlarged, and the function expandability of the product is further enhanced.
(2) The automatic operation and the manual operation do not have interference phenomenon, and the automatic operation and the manual operation respectively run according to corresponding planning routes, and all actions meet the normal operation specification of the circuit break; the integration level of functional characteristics such as driving piece, linkage is high, and overall layout is standard, compact structure.
(3) By integrating the functions of rotation, reset, locking and the like on the linkage rod, the horizontal placement of the electromagnetic iron becomes possible, the electromagnetic iron is close to the same axis as the main operating mechanism, a regular rectangle is created for the PCBA below, the manufacturing process of the PCBA is simplified, and the cost is saved.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of a novel electric operating mechanism for a miniature circuit breaker according to the present invention;
fig. 2 is a schematic structural diagram of a bottom shell of the novel electric operating mechanism for the miniature circuit breaker according to the present invention;
fig. 3 is a schematic structural diagram of a switching-in and switching-off operation mechanism of the novel electric operation mechanism for the miniature circuit breaker of the present invention;
fig. 4 is a schematic structural diagram of the driving member in the novel electric operating mechanism for a micro circuit breaker according to the present invention in different states (the drawing on the lower side in fig. 4 is obtained by axially rotating the drawing on the upper side by 180 °);
fig. 5 is a schematic structural view of a reversing element in the novel electric operating mechanism for the miniature circuit breaker according to the present invention;
fig. 6 is a schematic structural view of a separating and combining rod in the novel electric operating mechanism for the miniature circuit breaker of the present invention;
fig. 7 is a schematic structural view of the novel electric operating mechanism for the miniature circuit breaker according to the present invention in the open state;
fig. 8 is a schematic structural diagram of the novel electric operating mechanism for the miniature circuit breaker according to the present invention in a closing state;
fig. 9 is a schematic structural view of the novel electric operating mechanism for the miniature circuit breaker in a remote locking state according to the present invention;
fig. 10 is an expanded view of the outer surface of the driving member of the novel electric operating mechanism for the miniature circuit breaker according to the present invention;
fig. 11 is a schematic structural view of a leakage tripping device in the novel electric operating mechanism for the miniature circuit breaker according to the present invention;
fig. 12 is a schematic structural view of a linkage rod in the novel electric operating mechanism for the miniature circuit breaker according to the present invention;
shown in the figure: 1-circuit breaker body, 2-operating mechanism body, 201-shell, 202-switching-closing operating mechanism, 203-electric leakage tripping device, 204-control monitoring module, 3-bottom shell, 301-motor mounting position, 302-sliding chute, 303-bottom shell hole, 304-bottom shell column, 305-tripping coil mounting position, 306-limiting rib 306, 307-square hole, 4-surface cover, 5-handle, 6-square shaft, 7-speed reducing motor, 8-driving piece, 801-mounting hole, 802-locking strip, 803-groove I, 804-groove II, 805-groove III, 806-groove IV, 808-reflection block mounting hole I, 808-reflection block mounting hole II, 9-reversing piece, 901-reversing column I, 807, 902-a first guide bar, 903-a second reversing column, 904-a second guide bar, 10-a dividing and combining rod, 1001-a rod body, 1002-a dividing and combining rod groove, 1003-a square hole, 1004-a dividing and combining rod upper and lower arms, 11-a light reflecting block, 12-a linkage rod, 1201-a linkage rod rib, 1202-a shaft hole, 1203-a first column body, 1204-a buckle, 1205-a second column body, 1206-a linkage rod kidney-shaped hole, 13-a movable iron core, 14-a reset torsion spring, 15-a trip coil, 16-a reset spring, 17-a circuit breaker trip linkage shaft and 18-a photoelectric sensor.
Detailed Description
The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.
It should be understood that the drawings of the present application are only used to match the contents disclosed in the specification, so as to be known and read by those skilled in the art, and not to limit the practical limitations of the present invention, so that the present application does not have any technical significance, and any modification of the structure, change of the ratio relationship, or adjustment of the size should still fall within the scope of the present application without affecting the function and the achievable purpose of the present application. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle", and the like used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be considered as the scope of the present invention without substantial changes in the technical content.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The first embodiment is as follows:
as shown in fig. 1, the novel electric operating mechanism for a miniature circuit breaker of the present invention comprises an operating mechanism main body 2 fixed on a circuit breaker body 1 (the operating mechanism main body 2 is usually mounted together with the circuit breaker body 1 by rivets, and both become an inseparable object). The operating mechanism main body 2 comprises a shell 201, a switching-on/off operating mechanism 202, an electric leakage tripping device 203 for circuit breaker electric leakage protection, and a control and monitoring module (namely, a main control board, which adopts a conventional circuit breaker main control board) 204 which is installed in the operating mechanism main body 2 and is used for controlling the driving mechanism in the operating mechanism main body 2 to start and stop; the shell 201 is hollow and is composed of a bottom shell 3 and a face cover 4 which are detachably spliced together; the inner sides of the bottom shell 3 and the face cover 4 are symmetrically provided with sliding grooves 302, and as shown in fig. 2, the bottom shell 3 is further provided with a motor mounting position 301 for mounting a speed reduction motor 7, a bottom shell hole 303 for the square shaft 6 to extend into the housing 201, a bottom shell column 304 for sleeving the linkage rod 12, a trip coil mounting position 305 for mounting the trip coil 15, a limiting rib 306 for limiting the trip coil 15 and blocking the right side of the return spring 16, and a square hole 307 for passing a detection signal line. The operating mechanism body 2 is designed to have a module width (18 mm), and a detection signal line is connected to a control monitoring module (main control board) through a hole 307 on the bottom case 3. The opening and closing operation mechanism 202 and the leakage tripping device 203 are arranged in the shell 201 in a straight line shape.
As shown in fig. 3, the switching-on/off operation mechanism includes a handle 5, a square shaft 6, and a driving mechanism, a driving member 8, a reversing member 9, a switching-on/off lever 10, and a light reflecting block 11, which are respectively disposed in a housing 201. The handle 5 can be rotatably arranged in the breaker body 1 (the handle 5 is a breaker self-contained structure). The front end of the square shaft 6 penetrates through the bottom shell 3 and extends into the shell 201, and the rear end of the square shaft is inserted into the handle 5 and can rotate along with the handle 5 (the circuit breaker body 1 and the operating mechanism main body 2 are linked through the square shaft 6); the driving mechanism is a speed reducing motor 7 which is arranged in the shell 201 and the motor shaft of the speed reducing motor points to the right side of the shell 201. The speed reducing motor 7 and the driving piece 8 are arranged on the same axis.
As shown in fig. 4, the left side of the driving member 8 is mounted on the motor shaft of the reduction motor 7 through a mounting hole 801 arranged thereon and can rotate along with the motor shaft; a driving groove is arranged on the periphery of the driving part 8; and a light reflecting block mounting hole is formed in the driving groove. The driving member 8 is of a cylindrical structure. The driving grooves comprise a first groove 803, a second groove 804, a third groove 805 and a fourth groove 806 which are concavely arranged on the outer periphery of the driving part 8 respectively; as shown in the upper drawing of fig. 4, the first groove 803 is obliquely arranged from left to right around the front side surface of the periphery of the driving member 8; as shown in the lower diagram of fig. 4, the second groove 804 is in a V-shaped structure and is disposed on the rear side of the outer periphery of the driving member 8, and the width of the second groove 804 gradually increases from front to back around the outer periphery of the driving member 8; as shown in the upper drawing in fig. 4, the third groove 805 is arranged in front of the outer periphery of the driving member 8 and is formed by a groove body which is transversely arranged and vertically arranged around the outer periphery of the driving member 8 and is communicated with the driving member, and the vertical groove body of the third groove 805 is arranged on the right side of the outer periphery of the driving member 8; as shown in the lower drawing in fig. 4, the fourth groove 806 is disposed at the rear side of the periphery of the driving member 8, and is formed by a groove body which is transversely disposed and vertically disposed around the periphery of the driving member 8 and is communicated with the driving member, and the vertical groove body of the fourth groove 806 is disposed at the left side of the periphery of the driving member 8; the notch of the vertical groove body of the fourth groove 806 is communicated with the notch of the left side of the rear end of the second groove 804; as shown in the upper diagram of fig. 4, the notch at the front end of the second groove 804 is communicated with the notch at the left end of the first groove 803 at the notch at the left end of the transverse groove body of the third groove 805, and a first light reflecting block mounting hole 807 is arranged at the intersection; as shown in the lower diagram of fig. 4, the right notch at the rear end of the second groove 804 is communicated with the right notch at the right end of the first groove 803 and the notch of the vertical groove body of the third groove 805 at the right notch at the transverse groove body of the fourth groove 806, and a second light reflecting block mounting hole 808 is arranged at the intersection.
As shown in fig. 5, the reversing element 9 is installed in the housing 201 through a first guide strip 902 and a second guide strip 904 (capable of sliding left and right) which are arranged at the front and rear sides and respectively inserted into the inner sliding grooves 302 of the bottom shell 3 and the face cover 4; the bottom of the reversing piece 9 is provided with a first reversing column 901 engaged in the driving groove (comprising a first groove 803, a second groove 804, a third groove 805 and a fourth groove 806), the first reversing column 901 can move along the driving groove under the driving of the driving piece 8 and drive the reversing piece 9 to move left and right along the sliding groove 302, the top of the reversing piece 9 protrudes upwards (forms a triangular plate-shaped structure), and the front side and the rear side of the protrusion are both provided with a second reversing column 903.
As shown in fig. 6, the opening and closing lever 10 is sleeved on the front end of the square shaft 6 through a square hole 1003 formed in the rear side of a lever body 1001; a combining and combining rod groove 1002 is arranged on the front side of the top of the rod body 1001 of the combining and combining rod 10; the bottom of the rod body 1001 of the split-combination rod 10 is provided with a split-combination rod upper arm 1004 and a split-combination rod lower arm 1004 (composed of two parallel arm plates), and the bottom of the split-combination rod upper arm 1004 and the split-combination rod lower arm is provided with an inverted U-shaped groove sleeved on the second reversing column (the two arm plates of the split-combination rod upper arm 1004 and the split-combination rod lower arm 1004 are respectively positioned on two sides of the top protrusion of the reversing piece 9 and are movably clamped on the second reversing column 903 through the inverted.
As shown in fig. 3, the plurality of light-reflecting blocks 11 are respectively installed in the light-reflecting block installation holes (including the first light-reflecting block installation hole 807 and the second light-reflecting block installation hole 808) and the combining rod recess 1002.
As shown in fig. 1, the control and monitoring module 204 is disposed in the housing 201 and located in front of the switching-on/off operating mechanism 202 (and the electrical leakage tripping device 203), a photoelectric sensor 18 is disposed on the control and monitoring module 204 corresponding to the light reflecting block 11, and the control and monitoring module 204 controls the start and stop of the reduction motor 7 through light signals reflected by the light reflecting block 11 at different positions received by the photoelectric sensor 18.
The number of the photoelectric sensors 18 is four, wherein two photoelectric sensors 18 are correspondingly arranged below the driving member 8 one by one and correspond to the first reflection block mounting hole 807 and the second reflection block mounting hole 808 in position (when the driving member 8 rotates a certain angle, the first reflection block mounting hole 807 and the reflection block 11 in the second reflection block mounting hole 808 are just aligned with the photoelectric sensors 18); the other two photoelectric sensors 18 are respectively and correspondingly arranged right in front of the position of the opening and closing rod groove 1002 when the opening and closing rod 10 is at the closing position or the opening position (that is, when the opening and closing rod 10 rotates to the closing position, the right in front of the opening and closing rod groove 1002 directly faces one photoelectric sensor 18, and when the opening and closing rod 10 rotates to the opening position, the right in front of the opening and closing rod groove 1002 also directly faces one photoelectric sensor 18).
As shown in fig. 7, when the circuit breaker is in the open state, the second reflecting block 11 in the second reflecting block mounting hole 808 rotates with the driving element 8 to a position just opposite to the photoelectric sensor 18 on the right side of the lower part of the driving element 8 (at this time, the first reversing column 901 is located at the leftmost end of the driving element 8 and just above the first reflecting block mounting hole 807, that is, the first reflecting block mounting hole 807 rotates with the driving element 8 to the uppermost end and is located just below the first reversing column 901), and meanwhile, the first opening/closing lever groove 1002 is just opposite to the photoelectric sensor 18 on the right side in front of the first opening/closing lever 10 (the first opening/closing lever 10 is deviated to the right.
As shown in fig. 8, when the circuit breaker is in a closed state, the first reflective block 11 in the first reflective block mounting hole 807 rotates with the driving element 8 to a position just opposite to the left photoelectric sensor 18 on the lower portion of the driving element 8 (at this time, the first reversing column 901 is located at the rightmost end of the driving element 8 and just above the second reflective block mounting hole 808, that is, the second reflective block mounting hole 808 rotates with the driving element 8 to the uppermost end and is located directly below the first reversing column 901), and meanwhile, the opening and closing lever groove 1002 is directly opposite to the left photoelectric sensor 18 in front of the opening and closing lever 10 (the opening and closing lever 10 is biased to the left side).
As shown in fig. 9, when the circuit breaker is in the remote locking state, the light-reflecting block 11 in the first light-reflecting block mounting hole 807 and the light-reflecting block 11 in the second light-reflecting block mounting hole 808 both face the photoelectric sensor 18 at the lower part of the driving member 8, the first reversing column 901 is located at the leftmost end of the driving member 8, and the opening/closing lever groove 1002 faces the photoelectric sensor 18 on the front right side of the opening/closing lever 10 (the opening/closing lever 10 is biased to the right side).
Fig. 10 is an expanded view of the outer surface of the driving member 8, in a of fig. 10, a1 and B1 are positions of the first reversing column 901 when the switch is in a closing state, and a2 and B2 are positions of the first reversing column 901 when the switch is in an opening state; the sliding track of the reversing column I901 in the driving groove of the driving piece 8 is shown as a graph b in FIG. 10; the automatic closing track in the opening state is shown as a c diagram in fig. 10; the automatic opening track in the closing state is shown as a diagram d in fig. 10; the manual closing and automatic opening track in the opening state is shown as an e diagram in fig. 10; the manual opening and automatic closing track in the closing state is shown as the graph f in fig. 10.
The motion process is as follows:
when the switch is automatically switched on, the switch is in a switching-off state (as shown in fig. 7), the reduction motor 7 receives a switching-on instruction of the control monitoring module 204, the motor shaft drives the driving member 8 to rotate clockwise through the mounting hole 801, the first reversing column 901 pushes a lower track from a2 to a B1 in a driving groove of the driving member 8, the first guide strip 902 and the second guide strip 0904 linearly move rightwards along the sliding groove 302 of the casing 201 (the bottom casing 3 and the face casing 4), the second reversing column 903 drives the upper arm 1004 and the lower arm 1004 of the switching-on/off rod to rotate anticlockwise the switching-on/off rod 10, the switching-on/off rod 10 drives the handle 5 on the circuit breaker to reach a switching-on position (as shown in fig. 8) through the square shaft 6, at this time, a signal is uploaded by the upper photoelectric sensor 18 placed on the control monitoring module 204 (as shown in fig. 8, at this time, the reflective block 11 in the first reflective block, meanwhile, the opening and closing rod groove 1002 is over against the photoelectric sensor 18 on the left side in front of the opening and closing rod 10, the two photoelectric sensors 18 convert sensed optical signals into electric signals and send the electric signals to the control monitoring module 204), the control monitoring module 204 controls the speed reducing motor 7 to stop rotating to complete the closing motion process, the circuit breaker has a locking characteristic at the position, and the operating mechanism driving part is in a vacant state, cannot exert an effect, and is stable in state; fig. 10 c shows the movement path of the reversing lever one 901 on the drive element 8.
When the switch is in a closing state (as shown in fig. 8) during automatic opening, the speed reducing motor 7 receives an opening instruction of the control monitoring module 204, the motor shaft drives the driving member 8 to rotate clockwise through the mounting hole 801, the first reversing column 901 pushes the lower track from B1 to a2 through the driving groove of the driving member 8, the first guide strip 902 and the second guide strip 0904 linearly move leftwards along the chute 302 of the casing 201 (bottom casing 3 and face casing 4), the second reversing column 903 drives the upper arm 1004 and the lower arm 1004 of the switching rod to rotate clockwise, the switching rod 10 drives the handle 5 on the circuit breaker to reach an opening position (as shown in fig. 7) through the square shaft 6, at this time, the upper photoelectric sensor 18 placed on the control monitoring module 204 uploads a signal (as shown in fig. 7, the reflective block 11 in the second reflective block mounting hole 808 rotates with the driving member 8 to a position just right facing the photoelectric sensor 18 on the lower right side of the driving member 8), meanwhile, the opening and closing rod groove 1002 faces the photoelectric sensor 18 on the right side in front of the opening and closing rod 10, the two photoelectric sensors 18 convert the sensed optical signals into electric signals and send the electric signals to the control monitoring module 204), and the control monitoring module 204 controls the speed reduction motor 7 to stop rotating to complete the opening and closing movement process; the moving direction of the automatic brake opening is opposite to the automatic brake closing, the moving direction of the speed reducing motor is unchanged, other moving parts act in the reverse direction, and the state of the circuit breaker and the operating mechanism is stable after the brake opening. Fig. 10 d shows the movement path of the reversing lever one 901 on the drive element 8.
When the manual closing and automatic opening are carried out, the switch is in a closing state, the breaker handle 5 is manually pulled to use the breaker handle 5 for closing, the handle 5 drives the opening and closing rod 10 to rotate anticlockwise through the square shaft 6, the opening and closing rod upper and lower arms 1004 force the reversing column two 903 to drive the reversing piece 9 to linearly move leftwards along the chute 302 in the shell 201, so that the reversing column one 901 reaches the position A1 from A2, at the moment, the breaker is in a closing state (shown in figure 8), the reducing motor 7 receives a closing instruction of the control monitoring module 204, the reducing motor 7 drives the driving piece 8 to rotate clockwise, the reversing piece 9 drives the opening and closing rod 10 to rotate clockwise, the opening and closing rod 10 drives the breaker handle 5 to reach a closing position (shown in figure 7) through the square shaft 6, similarly, the photoelectric sensor 18 receives a position signal and then transmits the position signal to the control monitoring module 204, and the control monitoring module 204 controls the reducing motor 7, the switching-off motion is completed, and the graph e in fig. 10 shows the motion track of the reversing column one 901 in the driving groove of the driving piece 8.
When the manual brake opening and the automatic brake closing are performed, the movement direction of the manual brake opening and the manual brake closing are opposite to each other, the movement direction of the motor is unchanged, other moving parts perform reverse actions, and a graph f in fig. 10 is a movement track of the first reversing column 901 on the driving part 8.
Example two:
the difference between this embodiment and the first embodiment is:
as shown in fig. 11 and 12, the electrical leakage tripping device 203 is installed in the housing 201, and includes a tripping coil 15, a linkage rod 12, a reset torsion spring 14, a reset spring 16, a movable iron core 13, and a circuit breaker tripping linkage shaft 17; the trip coil 15 is installed in the shell 201 and is positioned on the right side of the opening and closing operation mechanism 202; the linkage rod 12 is located between the tripping coil 15 and the switching-on/off operating machine 202, a first column 1203 is arranged on the front side face of the top of the linkage rod 12, a second column 1205 is arranged on the front side face of the bottom of the linkage rod 12, a buckle 1204 is arranged at the right end of the front side face of the linkage rod 12, a linkage rod waist-shaped hole 1206 is arranged on the left side of the front side face of the linkage rod 12, a shaft hole 1202 is formed in the first column 1203, and the linkage rod 12 is sleeved on a bottom shell column 304 preset on the inner side of a bottom shell; the first reset torsion spring 14 is sleeved on the first cylinder 1203, a first torsion spring arm of the first reset torsion spring 14 is clamped on the inner side surface of the bottom shell 3, and a second torsion spring arm is placed at the buckle 1204; the reset spring 16 is arranged in an inner hole in the middle of the trip coil 15 (the right side of the reset spring is abutted against the left side surface of the limiting rib 306); the left side of the movable iron core 13 is sleeved on the second cylinder 1205 through a movable iron core waist-shaped hole arranged on the movable iron core 13, and a core rod on the right side of the movable iron core 13 extends into an inner hole in the middle of the tripping coil 15 to be in contact with the reset spring 14; one end of the circuit breaker tripping linkage shaft 17 is installed in the circuit breaker body 1, and the other end of the circuit breaker tripping linkage shaft passes through the bottom shell 3 and is placed in the linkage rod kidney-shaped hole 1206 after extending into the shell 201.
When the control monitoring module 204 detects that an electric leakage condition exists in a line, the control monitoring module 204 energizes the trip coil 15, the movable iron core 13 moves rightwards (compresses the reset spring 16) under the action of magnetic force, meanwhile, the movable iron core 13 with the linkage rod 12 moves anticlockwise, the reset torsion spring 14 stores energy in the process, the linkage rod 12 rotates and drives the circuit breaker trip linkage shaft 17 to move anticlockwise through the linkage rod kidney-shaped hole 1206 on the linkage rod 12, and then the circuit breaker is used for tripping; when the operation is completed, the control monitoring module 204 stops supplying power to the trip coil 15, the movable iron core 13 loses the magnetic force effect, the reset torsion spring 16 releases energy at the moment, the linkage rod 12 is driven to reset, and the movable iron core 13 and the circuit breaker trip linkage shaft 17 respectively return to the initial positions under the respective spring force effects.
Example three:
the difference between this embodiment and the second embodiment is:
as shown in fig. 11, a linkage rod rib is arranged at the left lower part of the front side surface of the linkage rod; and a locking strip which can push the linkage rod rib to rotate and then drive the circuit breaker tripping linkage shaft to rotate to trip the circuit breaker is correspondingly arranged on the right side surface of the driving piece.
As shown in fig. 9, in the remote locking process, after the locking bar 802 of the driving member 8 reaches the locking position under the driving of the speed reducing motor 7, the opening/closing rod groove 1002 faces the photoelectric sensor 18 on the right side in front of the opening/closing rod 10, the photoelectric sensor 18 converts the sensed optical signal reflected by the reflective block 11 in the opening/closing rod groove 1002 into an electrical signal and sends the electrical signal to the control monitoring module 204, and the control monitoring module 204 receives the signal of the photoelectric sensor 18 and then controls the speed reducing motor 7 to stop rotating. In the process that the speed reducing motor 7 drives the locking bar 802 to rotate, the locking bar 802 pushes the linkage bar rib 1201 to rotate, the linkage bar kidney-shaped hole 1206 drives the circuit breaker tripping linkage shaft 17 to enable the circuit breaker to be in a tripping state, and at the moment, the circuit breaker handle 5 is operated to be in a failure state.
It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The protection scope of the present invention is not limited to the technical solution disclosed in the specific embodiment, and all the modifications, equivalent replacements, improvements, etc. made by the technical entity of the present invention to the above embodiments all fall into the protection scope of the present invention.
Claims (8)
1. A novel electric operating mechanism for a miniature circuit breaker comprises an operating mechanism main body which is fixedly arranged on a circuit breaker body; the operating mechanism main body comprises a shell, a switching-on and switching-off operating mechanism, an electric leakage tripping device for circuit breaker electric leakage protection, and a control and monitoring module which is arranged in the operating mechanism main body and is used for controlling the starting and stopping of a driving mechanism in the operating mechanism main body; the shell is hollow and is composed of a bottom shell and a face cover which are detachably spliced together; the inner sides of the bottom shell and the surface cover are respectively symmetrically provided with sliding chutes; the method is characterized in that: the switching-on and switching-off operating mechanism comprises a handle, a square shaft, a driving mechanism, a driving piece, a reversing piece, a switching-on and switching-off rod and a light reflecting block, wherein the driving mechanism, the driving piece, the reversing piece, the switching-on and switching-off rod and the light reflecting block are respectively arranged in the shell;
the handle is rotatably arranged in the circuit breaker body;
the front end of the square shaft penetrates through the bottom shell and extends into the shell, and the rear end of the square shaft is inserted into the handle and can rotate along with the handle;
the driving mechanism is a speed reducing motor which is arranged in the shell and the motor shaft of the driving mechanism points to the right side of the shell;
the left side of the driving piece is arranged on a motor shaft of the speed reducing motor through a mounting hole arranged on the driving piece and can rotate along with the motor shaft; a driving groove is arranged on the periphery of the driving piece; a light reflecting block mounting hole is formed in the driving groove;
the reversing piece is arranged in the shell through a first guide strip and a second guide strip which are arranged on the front side and the rear side of the reversing piece and are respectively inserted into the sliding grooves in the bottom shell and the inner side of the surface cover; the bottom of the reversing piece is provided with a first reversing column which is meshed in the driving groove, the first reversing column can move along the driving groove under the driving of the driving piece and drive the reversing piece to move left and right along the sliding groove, the top of the reversing piece protrudes upwards, and a second reversing column is arranged on the front side and the rear side of the protrusion;
the opening and closing rod is sleeved on the front end of the square shaft through a square hole arranged on the rear side of the rod body of the opening and closing rod; the front side of the top of the body of the opening and closing rod is provided with an opening and closing rod groove; the bottom of the body of the opening and closing rod is provided with an upper arm and a lower arm of the opening and closing rod, and the bottom of the upper arm and the lower arm of the opening and closing rod is provided with an inverted U-shaped groove sleeved on the second reversing column;
the light reflecting blocks are multiple and are respectively arranged in the light reflecting block mounting holes and the opening and closing rod grooves;
the control monitoring module is arranged in the shell and positioned on the front side of the opening and closing operation mechanism, a photoelectric sensor is arranged on the control monitoring module corresponding to the light reflecting blocks, and the control monitoring module controls the start and stop of the speed reducing motor through light signals received by the photoelectric sensor and reflected by the light reflecting blocks at different positions.
2. The novel electric operating mechanism for the miniature circuit breaker according to claim 1, wherein: the leakage tripping device is arranged in the shell and comprises a tripping coil, a linkage rod, a reset torsion spring, a reset spring, a movable iron core and a circuit breaker tripping linkage shaft; the tripping coil is arranged in the shell and is positioned on the right side of the opening and closing operation mechanism; the linkage rod is positioned between the tripping coil and the opening and closing operation machine, a first column body is arranged on the front side face of the top of the linkage rod, a second column body is arranged on the front side face of the bottom of the linkage rod, a buckle is arranged at the right end of the front side face of the linkage rod, a waist-shaped hole of the linkage rod is arranged on the left side of the front side face of the linkage rod, a shaft hole is formed in the first column body, and the linkage rod is sleeved on a bottom shell column preset on the inner side of the; the first reset torsion spring is sleeved on the first column body, the first torsion spring arm of the reset torsion spring is clamped on the inner side surface of the bottom shell, and the second torsion spring arm is placed at the clamping buckle; the reset spring is arranged in an inner hole in the middle of the tripping coil; the left side of the movable iron core is sleeved on the second cylinder through a movable iron core waist-shaped hole arranged on the movable iron core, and a core rod on the right side of the movable iron core extends into an inner hole in the middle of the tripping coil to be in contact with the reset spring; one end of the circuit breaker tripping linkage shaft is arranged in the circuit breaker body, and the other end of the circuit breaker tripping linkage shaft penetrates through the bottom shell and extends into the shell to be placed in the linkage rod waist-shaped hole.
3. The novel electric operating mechanism for the miniature circuit breaker according to claim 2, characterized in that: a linkage rod rib is arranged at the left lower part of the front side surface of the linkage rod; and a locking strip which can push the linkage rod rib to rotate and then drive the circuit breaker tripping linkage shaft to rotate to trip the circuit breaker is correspondingly arranged on the right side surface of the driving piece.
4. The novel electric operating mechanism for the miniature circuit breaker according to claim 1, wherein: the opening and closing operation mechanism and the electric leakage tripping device are arranged in the shell in a straight line shape.
5. The novel electric operating mechanism for the miniature circuit breaker according to claim 1, wherein: the speed reducing motor and the driving piece are arranged on the same axis.
6. The new electric operating mechanism for micro circuit breaker according to any one of claims 1-5, characterized in that: the driving piece is of a cylindrical structure.
7. The novel electric operating mechanism for the miniature circuit breaker according to claim 6, wherein: the driving grooves comprise a groove I, a groove II, a groove III and a groove IV which are concavely arranged on the periphery of the driving piece respectively; the first groove is obliquely arranged around the front side face of the periphery of the driving piece from left to right; the second groove is in a V-shaped structure and is arranged on the rear side face of the periphery of the driving part, and the width of the second groove is gradually increased from front to back around the periphery of the driving part; the groove III is arranged on the front side of the periphery of the driving piece and is formed by a groove body which is transversely arranged and a groove body which is vertically arranged around the periphery of the driving piece and is mutually communicated, and the vertical groove body of the groove III is positioned on the right side of the periphery of the driving piece; the groove four is arranged at the rear side of the periphery of the driving piece and is formed by a groove body which is transversely arranged and a groove body which is vertically arranged around the periphery of the driving piece and is mutually communicated, a notch of the groove four vertical groove body is communicated with a notch at the left side of the rear end of the groove two, and a groove three vertical groove body is positioned at the left side of the periphery of the driving piece; the notch at the front end of the second groove is communicated with the notch at the left end of the first groove at the notch at the left end of the third transverse groove body of the groove in an intersecting manner, and a first light reflecting block mounting hole is formed at the intersecting point; the right side notch of the rear end of the second groove is communicated with the right side notch of the first groove and the notches of the three vertical groove bodies at the right side notches of the four transverse groove bodies, and a second light reflecting block mounting hole is formed in the intersection point.
8. The novel electric operating mechanism for a micro circuit breaker according to claim 7, wherein: the number of the photoelectric sensors is four, wherein two photoelectric sensors are correspondingly arranged below the first reflecting block mounting hole and the second reflecting block mounting hole on the driving piece one by one; the other two photoelectric sensors are respectively and correspondingly arranged right in front of the position of the groove of the switching-on and switching-off rod when the switching-on and switching-off rod is in the switching-on position or the switching-off position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120018858.6U CN213660319U (en) | 2021-01-06 | 2021-01-06 | Novel electric operating mechanism for miniature circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120018858.6U CN213660319U (en) | 2021-01-06 | 2021-01-06 | Novel electric operating mechanism for miniature circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213660319U true CN213660319U (en) | 2021-07-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120018858.6U Active CN213660319U (en) | 2021-01-06 | 2021-01-06 | Novel electric operating mechanism for miniature circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213660319U (en) |
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2021
- 2021-01-06 CN CN202120018858.6U patent/CN213660319U/en active Active
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