CN107978498B - Universal circuit breaker energy storage handle anti-clamping stagnation device - Google Patents
Universal circuit breaker energy storage handle anti-clamping stagnation device Download PDFInfo
- Publication number
- CN107978498B CN107978498B CN201610919514.6A CN201610919514A CN107978498B CN 107978498 B CN107978498 B CN 107978498B CN 201610919514 A CN201610919514 A CN 201610919514A CN 107978498 B CN107978498 B CN 107978498B
- Authority
- CN
- China
- Prior art keywords
- energy storage
- circuit breaker
- pawl
- storage handle
- ratchet wheel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
- H01H3/3031—Means for locking the spring in a charged state
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/34—Driving mechanisms, i.e. for transmitting driving force to the contacts using ratchet
Landscapes
- Breakers (AREA)
- Switch Cases, Indication, And Locking (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
An energy storage handle anti-clamping device of a universal circuit breaker comprises a circuit breaker body and an operating mechanism arranged on one side of the circuit breaker body, wherein the energy storage handle is arranged on the outer side wall of one side of the operating mechanism, manual energy storage is carried out on the operating mechanism by rotating the energy storage handle, the operating mechanism comprises a V-shaped rotating shaft, one end of the V-shaped rotating shaft extends out of the side wall of one side of the operating mechanism, a ratchet wheel linked with the energy storage handle is sleeved at one end of the V-shaped rotating shaft, and a pawl linked with the ratchet wheel is arranged on one side, facing the; the rotating energy storage handle drives the ratchet wheel to rotate through the pawl; an anti-blocking structure for preventing the blocking of the pawl and the ratchet wheel is arranged between the pawl and the ratchet wheel; the anti-blocking structure comprises an anti-blocking plate, and when the energy storage handle is in an initial state, the anti-blocking plate separates the pawl from the ratchet wheel.
Description
Technical Field
The invention relates to the field of low-voltage electrical appliances, in particular to a universal circuit breaker.
Background
The universal circuit breaker realizes the opening and closing of a product through an operating mechanism. When the universal circuit breaker stores energy manually, the energy storage handle is rotated by external force, the pawl on the energy storage handle and the ratchet wheel on the operating mechanism drive the V-shaped shaft to rotate, so that the energy storage spring of the operating mechanism is compressed, and manual energy storage is completed. The ratchet wheel returns to the initial position after the operating mechanism releases energy, and torque is not transmitted between the pawl on the energy storage handle and the ratchet wheel on the operating mechanism at the initial position, and the pawl and the ratchet wheel are buckled with each other after the energy storage handle rotates for a certain angle to transmit the torque. At present, when operating device released energy, because reasons such as spare part machining error, cooperation error lead to the ratchet to rotate excessively, make the ratchet detain the face contact with the pawl on the energy storage handle, need not to rotate certain angle with the energy storage handle this moment and can begin the energy storage, because clearance is very little between initial condition energy storage handle and the face guard, energy storage handle is stirred in insufficient space, is difficult to accomplish the energy storage operation.
The universal circuit breaker drives the V-shaped shaft of the operating mechanism to rotate through the motor to realize electric energy storage, the electric energy storage process is that the motor is electrified to rotate, the motor is in gear transmission to reduce the rotating speed and is transmitted to the last-stage gear (aluminum disc), and a blind hole (or a through hole) on the aluminum disc is matched with the V-shaped shaft of the operating mechanism to transmit the torque to the operating mechanism, so that the energy storage of the operating mechanism is realized. At present, a blind hole (or a through hole) which is the same as the section of a V-shaped shaft of an operating mechanism is processed on an aluminum disc, the blind hole (or the through hole) is matched with the V-shaped shaft to transmit torque, the aluminum disc is a whole body processed by aluminum materials, the aluminum disc and the V-shaped shaft are in clearance fit due to product assembly requirements, the aluminum disc and the V-shaped shaft are in line contact in the transmission process, the blind hole (or the through hole) of the aluminum disc of the motor is large in abrasion and short in service life in the electric energy storage process.
The main loop of the universal circuit breaker is divided into four phases of N/A/B/C or three phases of A/B/C, and each phase of main loop consists of a static contact and a moving contact. When the circuit breaker is switched on, the large rotating shaft of the operating mechanism rotates, the connecting rod drives the moving contact to rotate for a certain angle along the rotating center and then to be contacted with the static contact, and the main loop is switched on. When the switch is closed, the contact spring of the moving contact is continuously compressed after the moving contact and the static contact are contacted, so that overtravel is formed, and the final pressure of the contact is increased to meet the performance requirement of a product. At present, due to the reason of the original structural design of the universal circuit breaker, under the condition of using the same parts, the overtravel of the other phases far away from the phase B can be different from the phase B, and the risks of insufficient overtravel and insufficient final pressure of a moving contact exist.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the universal circuit breaker which is safe and stable in performance, simple and compact in structure and capable of obtaining good user experience.
In order to achieve the purpose, the invention adopts the following technical scheme:
an energy storage handle anti-clamping stagnation device of a universal circuit breaker comprises a circuit breaker body 1 and an operating mechanism 2 arranged on one side of the circuit breaker body 1, wherein an energy storage handle 3 is arranged on the outer side wall of one side of the operating mechanism 2, manual energy storage is carried out on the operating mechanism 2 by rotating the energy storage handle 3, the operating mechanism 2 comprises a V-shaped rotating shaft 4, one end of the V-shaped rotating shaft 4 extends out of the side wall of one side of the operating mechanism 2, a ratchet wheel 5 linked with the energy storage handle 3 is sleeved at one end of the V-shaped rotating shaft 4, and a pawl 6 linked with the ratchet wheel 5 is arranged on one side, facing the ratchet wheel; the energy storage handle 3 is rotated to drive the ratchet wheel 5 to rotate through the pawl 6; an anti-clamping stagnation structure for preventing the clamping stagnation of the pawl 6 and the ratchet 5 is arranged between the pawl 6 and the ratchet 5; the anti-blocking structure comprises an anti-blocking plate 8, and when the energy storage handle 3 is in an initial state, the pawl 6 is separated from the ratchet wheel 5 by the anti-blocking plate 8.
Further, the anti-jamming plate 8 is provided with a flange 801 for separating the ratchet 5 and the pawl 6 in a protruding manner, and when the operating mechanism is de-energized, the pawl 6 is rested on the flange 801 to prevent the pawl 6 and the ratchet 5 from jamming.
Further, the flange 801 is one-tenth of a circular arc, and inclined surfaces 805 inclined downward are provided at both ends of the flange 801.
Furthermore, the anti-clamping stagnation plate 8 is sleeved on the V-shaped rotating shaft 4 and is positioned below the ratchet wheel 5.
Further, the anti-clamping stagnation plate 8 comprises an annular plate 81 and a strip-shaped extending plate 82 extending from the annular plate 81 to one side, a mounting circular hole 802 is formed in the middle of the annular plate 81, and the anti-clamping stagnation plate 8 is sleeved on the V-shaped rotating shaft 4 through the mounting circular hole 802; the end of the extension plate 82 is provided with a screw fixing hole 803 for fixing the anti-sticking plate 8, the anti-sticking plate 8 is fixed on one side wall of the operating mechanism 2 by inserting a screw into the screw fixing hole 803 through the anti-sticking plate 8, and the flange 801 is protruded at the joint of the annular plate 81 and the extension plate 82.
Further, a return spring 61 is mounted on the charging handle 3 for returning the latch 6, one end of the latch 6 is pivotally connected to the charging handle 3, the other end of the latch 6 is connected with one end of the return spring 61, and the other end of the return spring 61 is fixed on the charging handle 3; the pawl 6 is provided with a linkage projection 62 which is matched with the ratchet wheel 5 in a linkage way and protrudes towards one side, and the other end of the pawl 6 is provided with a spring hook 63 which is connected with a return spring 61 and is bent upwards.
Further, the interlocking protrusion 62 is a pointed protrusion, and the end of the ratchet wheel 5 on the side contacting the interlocking protrusion 62 is a pointed protrusion.
Further, a fixed contact 101 corresponding to each pole of the conductive system is installed on the circuit breaker body 1, a movable contact 102 corresponding to the fixed contact 101 of each pole of the conductive system is installed on the circuit breaker body 1, when the circuit breaker is switched on or switched off, a large rotating shaft 21 of the operating mechanism 2 drives the movable contact 102 to move to contact with and separate from the fixed contact 101 so as to switch on and switch off a main circuit, one end of the movable contact 102 is pivotally connected to the circuit breaker body 1, a cantilever 211 corresponding to each pole of the conductive system is installed on the large rotating shaft 21, a connecting rod 212 linked with the cantilever 211 is installed on one side of the movable contact 102 facing the cantilever 211, one end of the connecting rod 212 is connected with the movable contact 102, the other end of the connecting rod 212 is pivotally connected to an end of the cantilever 211, a first connecting portion 2120 connected with the movable contact 102 is installed at one; the distance of the circuit breaker from the first and second connection portions 2120 and 2121 of the corresponding link 212 of the circuit breaker operating mechanism 2 is greater than the distance of the first and second connection portions 2120 and 2121 of the other corresponding links 212.
Further, the first connecting portion 2120 is a first through hole formed at an end of the connecting rod 212, the movable contact 102 is provided with a mounting groove 1021, which is mounted and matched with one end of the connecting rod 212, on a side wall facing the connecting rod 212, and one end of the connecting rod 212 is mounted in the mounting groove 1021 through the first through hole and pivotally connected with the movable contact 102.
Further, the second connecting portion 2121 is a second through hole formed at the other end of the connecting rod 212, and one end of the cantilever 211 is provided with a cantilever mounting hole 2110 which is fitted with the second through hole.
According to the anti-clamping stagnation device for the energy storage handle of the universal circuit breaker, the anti-clamping stagnation structure is arranged between the pawl and the ratchet wheel of the energy storage handle, so that the pawl and the ratchet wheel are prevented from being clamped stagnation, and when the energy storage handle is in an initial state, the pawl and the ratchet wheel are separated by the anti-clamping stagnation structure, so that the use hand feeling of a user is improved. The anti-clamping stagnation plate is convexly provided with a flange used for separating the ratchet wheel and the pawl, and when the operating mechanism releases energy, the pawl is placed on the flange to prevent the pawl and the ratchet wheel from being clamped.
Drawings
Fig. 1 is a schematic structural view of a circuit breaker body of the present invention;
FIG. 2 is a schematic structural view of the stored energy handle of the present invention;
FIG. 3 is a schematic structural view of the operating mechanism of the present invention;
FIG. 4 is a side view of the operating mechanism of the present invention;
FIG. 5 is a schematic view of the stored energy handle of the present invention in an initial state;
FIG. 6 is an enlarged view of portion A of FIG. 5 in accordance with the present invention;
FIG. 7 is a schematic view of the hand lever of the present invention in a configuration for manual charging;
FIG. 8 is an enlarged view of portion B of FIG. 7 in accordance with the present invention;
FIG. 9 is a schematic view of the ratchet and pawl jamming upon the release of the operating mechanism of the present invention;
FIG. 10 is an enlarged view of portion C of FIG. 9 in accordance with the present invention;
FIG. 11 is another schematic view of the operating mechanism of the present invention;
FIG. 12 is another side view of the operating mechanism of the present invention;
FIG. 13 is a schematic view of the present invention showing the installation of an anti-binding plate;
FIG. 14 is an enlarged view of portion D of FIG. 13 in accordance with the present invention;
FIG. 15 is a schematic perspective view of an anti-binding plate according to the present invention;
figure 16 is another schematic structural view of the circuit breaker body of the present invention;
FIG. 17 is another schematic view of the operating mechanism of the present invention;
FIG. 18 is a perspective view of the motor of the present invention;
FIG. 19 is a schematic view of the construction of the V-shaped shaft of the present invention;
FIG. 20 is a top view of an aluminum disk of the present invention;
FIG. 21 is a perspective view of an aluminum disk of the present invention;
FIG. 22 is a schematic back view of an aluminum pan of the present invention;
FIG. 23 is a schematic structural view of another embodiment of an aluminum tray of the present invention;
figure 24 is a schematic structural view of the circuit breaker body of the present invention;
FIG. 25 is another structural schematic view of the operating mechanism of the present invention;
fig. 26 is a schematic structural view of a movable contact of the present invention;
FIG. 27 is a schematic structural view of the connecting rod of the present invention;
fig. 28 is a schematic structural view of the first pin of the present invention.
Detailed Description
The following describes the embodiments of the universal circuit breaker according to the present invention with reference to the embodiments shown in fig. 1 to 28. The universal circuit breaker of the present invention is not limited to the description of the following embodiments.
As shown in fig. 1, 16, 17, 24 and 25, the universal circuit breaker of the invention comprises a circuit breaker body 1, wherein the circuit breaker body 1 comprises a circuit breaker base, an operating mechanism 2 and a motor 7 which are arranged on one side of the circuit breaker body 1, an energy storage handle 3 is arranged on the outer side wall of one side of the operating mechanism 2, manual energy storage can be carried out on the operating mechanism 2 by rotating the energy storage handle 3, the motor 7 can carry out electric energy storage on the circuit breaker through an external power supply, and the energy storage handle 3 is positioned between the operating mechanism 2 and the motor 7; the circuit breaker base further comprises a multi-phase conductive copper bar arranged in a layered mode. The four-phase universal circuit breaker is shown in the figure, the upper layer and the lower layer of each phase are respectively provided with a first conductive copper bar 118 and a second conductive copper bar 119, obviously, the four-phase universal circuit breaker can be set as a single-phase or more-phase circuit breaker, and the conductive copper bars can also be arranged in multiple layers.
As shown in fig. 1, 2, 3, 11, 12, 13 and 14, the universal circuit breaker of the invention comprises an energy storage handle anti-jamming device. The operating mechanism 2 comprises a V-shaped rotating shaft 4 for energy storage, one end of the V-shaped rotating shaft 4 extends out of the side wall of one side of the operating mechanism 2, one end of the V-shaped rotating shaft 4 is sleeved with a ratchet wheel 5 linked with the energy storage handle 3, and one side of the energy storage handle 3 facing the ratchet wheel 5 is provided with a pawl 6 linked with the ratchet wheel 5; the energy storage handle 3 is rotated to drive the ratchet wheel 5 to rotate through the pawl 6; an anti-clamping stagnation structure for preventing the clamping stagnation of the pawl 6 and the ratchet 5 is arranged between the pawl 6 and the ratchet 5; the anti-jamming structure comprises an anti-jamming plate 8, and when the energy storage handle is in an initial state, the anti-jamming plate separates the pawl 6 from the ratchet wheel 5. According to the anti-clamping stagnation device for the energy storage handle of the universal circuit breaker, the anti-clamping stagnation structure is arranged between the pawl and the ratchet wheel of the energy storage handle, so that the pawl and the ratchet wheel are prevented from being clamped and blocked, and when the energy storage handle is in an initial state or is reset to the position of the initial state, the pawl and the ratchet wheel are separated by the anti-clamping stagnation structure, so that the use hand feeling of a user is improved. As shown in fig. 5 and 6, normally the charging handle 3 is in the initial state, the ratchet 5 and the pawl 6 are not engaged, and the interlocking projection 62 of the pawl 6 is pressed above the side of the tooth 51 of the ratchet 5.
As shown in fig. 7 and 8, normally, when the charging handle 3 is charged manually, the charging handle 3 needs to be rotated a certain angle until the interlocking protrusion 62 of the pawl 6 is engaged with the other side of the tooth 51 of the ratchet 5.
As shown in fig. 9 and 10, when the operating mechanism is de-energized, the V-shaped rotating shaft and the ratchet 5 are over-rotated, and the ratchet 5 and the pawl 6 are buckled to cause jamming, and at this time, a user needs a large external force to store energy in the operating mechanism, which affects the user experience.
As shown in fig. 15, the anti-jamming structure comprises an anti-jamming plate 8 which is sleeved on the V-shaped rotating shaft 4 and is positioned below the ratchet wheel 5, the anti-jamming plate 8 is arranged between the side plate of the operating mechanism and the ratchet wheel, and when the operating mechanism is positioned at the initial state position, the pawl 6 is separated from the ratchet wheel 5 by the anti-jamming plate 8. In a preferred embodiment, anti-jamming plate 8 is provided with a protruding flange 801 separating ratchet 5 and pawl 6, ratchet 5 being rotationally reset when the operating mechanism is de-energized, and pawl 6 resting on flange 801 when reset to the initial position, preventing jamming of pawl 6 and ratchet 5. The separation of pawl 6 from ratchet 5 by flange 801 prevents jamming of pawl 6 and ratchet 5. Other arrangements for lifting the catch 6 are of course possible, such as laterally inclined projections, or arrangements in which the catch 6 is provided with engagement arms for engaging the anti-jamming plate 8.
As shown in fig. 13 and 14, when the operating mechanism is in the initial state or position to which the release mechanism can be reset to the initial state, the cooperating projection 62 of pawl 6 rotates above flange 801, preventing jamming of pawl 6 and ratchet 5.
As shown in fig. 15, specifically, the anti-jamming plate 8 includes an annular plate 81 and a strip-shaped extending plate 82 extending from the annular plate 81 to one side, a mounting circular hole 802 is formed in the middle of the annular plate 81, and the anti-jamming plate 8 is sleeved on the V-shaped rotating shaft 4 through the mounting circular hole 802; the end of the extension plate 82 is provided with a screw fixing hole 803 for fixing the anti-sticking plate 8, the anti-sticking plate 8 is fixed on one side wall of the operating mechanism 2 by inserting a screw into the screw fixing hole 803 through the anti-sticking plate 8, and the flange 801 is protruded at the joint of the annular plate 81 and the extension plate 82. The anti-clamping stagnation plate 8 is simple in structure and easy to process, the annular plate 81 is sleeved on the V-shaped rotating shaft 4 through the mounting round hole 802 in the middle, the extension plate 82 is fastened through screws, and the structure is stable and reliable.
As shown in fig. 2, further comprising a return spring 61 mounted on the charging handle 3 for returning the pawl 6, one end of the pawl 6 being pivotally connected to the charging handle 3, the other end of the pawl 6 being connected to one end of the return spring 61, the other end of the return spring 61 being fixed to the charging handle 3; the pawl 6 is provided with a linkage projection 62 which is matched with the ratchet wheel 5 in a linkage way and protrudes towards one side, and the other end of the pawl 6 is provided with a spring hook 63 which is connected with a return spring 61 and is bent upwards. Return spring 61 is used to reset pawl 6.
As shown in fig. 2 to 4, specifically, the interlocking projection 62 is a pointed projection, and the end of the ratchet wheel 5 on the side contacting the interlocking projection 62 is a pointed projection. The interlocking protrusion 62 and the rodent 51 are both arranged to be pointed protrusions, and the fit is more tight and stable. The flange 801 is in a shape of a tenth of a circular arc, and two ends of the flange 801 are provided with inclined surfaces 805 which incline downwards. Ramp 805 makes it easier for latch 6 to rotate over flange lip 801.
As shown in fig. 16-22, the operating mechanism 2 includes a V-shaped rotating shaft 4 for energy storage, a side wall of one end of the V-shaped rotating shaft 4, which extends out of the operating mechanism 2, is in linkage fit with an aluminum plate 72 of the motor 7, a side wall of one end of the V-shaped rotating shaft 4 is provided with a first V-shaped groove 401 which is in installation fit with the aluminum plate 72, the aluminum plate 72 is provided with a reinforcing connecting member having a hardness higher than that of the aluminum plate 72, and the aluminum plate 72 is in fit connection with the V-shaped rotating shaft 4 through the reinforcing connecting member. According to the universal circuit breaker motor transmission mechanism, the reinforcing connecting piece with the hardness higher than that of the aluminum disc is arranged on the aluminum disc, the aluminum disc is connected with the reinforcing connecting piece in a matched mode, the abrasion of the V-shaped rotating shaft is low, the service life is long, the overall performance of the circuit breaker is improved, and the cost is saved.
Specifically, an insertion hole 721 matched with one end of the V-shaped rotating shaft 4 is formed in the aluminum disc 72, and the hardness of the side wall of the insertion hole 721 of the reinforcing connecting piece is higher than that of an anti-wear shaft 722 of the aluminum disc 72 in limit fit with the first V-shaped groove 401. The universal circuit breaker motor transmission mechanism is characterized in that an anti-abrasion shaft in contact fit with the V-shaped rotating shaft is riveted in an insertion hole of the motor aluminum disc, the hardness of the anti-abrasion shaft is higher than that of the aluminum disc, the strength is high, the electric energy storage abrasion is low, the service life is long, and the overall performance of the circuit breaker is improved.
As shown in fig. 18, the motor 7 further includes a motor 71 and a motor mounting plate 73, and the motor 71 and the aluminum plate 72 are respectively mounted on both sides of the motor mounting plate 73.
Specifically, the wear shaft 722 is disposed throughout the aluminum disk 72. The structure of the anti-abrasion shaft is more stable. The abrasion prevention shaft 722 is in surface contact with the sidewall of the insertion hole 721. The wear-resistant shaft 722 is in surface contact with the insertion hole 721, and the aluminum disc insertion hole is low in pressure, low in wear and long in service life in electric energy storage. The wear shaft 722 is a cylindrical or square shaft, although other shapes may be used.
As shown in fig. 21, the aluminum disk 72 includes a disk surface 7201 having a disk shape, a first groove 7202 is formed by recessing the middle of the disk surface 7201, a first boss 7203 is protruded at the middle of the first groove 7201, a second boss 7204 having a smaller diameter than the first boss 7203 is protruded at the middle of the first boss 7203, and an insertion hole 721 is formed at the middle of the second boss 7204. The aluminum plate 72 has a reasonable design of the overall structure.
As shown in fig. 19, a second V-shaped groove 402 is formed in the other side wall of the V-shaped rotating shaft 4, a fastening member 411 which is fitted into the second V-shaped groove 402 is formed in the other side wall of the operating mechanism 2, and the other end of the V-shaped rotating shaft 4 is fixed by the fastening member 411 after extending out of the other side wall of the operating mechanism 2. The two ends of the V-shaped rotating shaft 4 are respectively provided with a first V-shaped groove 401 and a second V-shaped groove 402, the structure is simple, and the processing is convenient.
As shown in fig. 23, in order to reduce the wear between the V-shaped rotating shaft 4 and the insertion hole 721, the following manner may also be adopted: the reinforced connecting piece is a splicing boss 74 made of a splicing material with higher hardness above the second boss 7204 of the aluminum disc, an insertion hole 721 is formed in the middle of the splicing boss 74, and the splicing boss 74 and the second boss 7204 can be riveted and fixed through a rivet 7401. In this way the cost is higher and the wear of the insertion hole of the aluminium disc is less compared to the above described embodiment.
As shown in fig. 24-27, the circuit breaker body 1 is provided with a plurality of fixed contacts 101 corresponding to the conductive systems of the poles, the circuit breaker body 1 is provided with a plurality of movable contacts 102 corresponding to the fixed contacts 101 of the conductive systems of the poles, when the circuit breaker is switched on or switched off, the large rotating shaft 21 of the operating mechanism 2 drives the movable contact 102 to move to contact and separate from the fixed contact 101 so as to switch on and off the main circuit, one end of the moving contact 102 is pivotally connected to the circuit breaker body 1, the cantilever 211 corresponding to each pole of the conductive system is installed on the large rotating shaft 21, a connecting rod 212 linked with the cantilever 211 is installed on one side of each moving contact 102 facing the cantilever 211, one end of the connecting rod 212 is connected with the moving contact 102, the other end is pivotally connected with the end of the cantilever 211, one end of the connecting rod 212 is provided with a first connecting part 2120 connected with the movable contact 102, and the other end of the connecting rod 212 is provided with a second connecting part 2121 connected with the cantilever 211; the distance between the first connection part 2120 and the second connection part 2121 of the corresponding link 212 of the corresponding phase (N phases shown in the figure) of the breaker operation mechanism 2 is greater than the distance between the first connection part 2120 and the second connection part 2121 of the corresponding other links 212.
According to the universal circuit breaker, the distance between the first connecting part and the second connecting part of the corresponding connecting rod far away from the circuit breaker operating mechanism is larger than the distance between the first connecting part and the second connecting part of the corresponding connecting rod, so that the overtravel distance of the corresponding phase close to the circuit breaker operating mechanism is ensured, the final pressure of a contact is increased, and the reliable contact matching of the contacts is maintained.
The universal circuit breaker comprises a circuit breaker A phase, a circuit breaker B phase, a circuit breaker C phase and a circuit breaker N phase; the operating mechanism 2 is disposed near the breaker B phase, and the distance between the first connection portion 2120 and the second connection portion 2121 of the link 212 of the breaker N phase is greater than the distance between the first connection portion 2120 and the second connection portion 2121 of the link 212 of the breaker a phase, the breaker B phase, and the breaker C phase. In the actual over travel condition of the circuit breaker, N, A, B, C phases adopt connecting rods with different lengths to connect the moving contact and the operating mechanism, so as to make up the deficiency of over travel of the other phases except B phase. For example, the operating mechanism 2 is disposed close to the circuit breaker B, and may have the smallest distance between the first connecting portion 2120 and the second connecting portion 2121 of the link 212 corresponding to the circuit breaker B, the next smallest distance between the first connecting portion 2120 and the second connecting portion 2121 of the link 212 corresponding to the circuit breaker a and the circuit breaker C, and the largest distance between the first connecting portion 2120 and the second connecting portion 2121 of the link 212 corresponding to the circuit breaker N. Of course, the distance between the first connection part 2120 and the second connection part 2121 of the link 212 corresponding to the breaker a phase, the breaker B phase and the breaker C phase may be as long as the distance between the first connection part 2120 and the second connection part 2121 of the link 212 corresponding to the breaker N is the largest.
As shown in fig. 24 to 26, the first connecting portion 2120 is a first through hole formed at an end of the connecting rod 212, the movable contact 102 is formed with a mounting groove 1021 facing a side wall of the connecting rod 212 and adapted to be mounted on an end of the connecting rod 212, and an end of the connecting rod 212 is mounted in the mounting groove 1021 through the first through hole and pivotally connected to the movable contact 102. The second connecting portion 2121 is a second through hole formed in the other end of the connecting rod 212, and one end of the cantilever 211 is provided with a cantilever mounting hole 2110 which is fitted with the second through hole. Preferably, the distance between the first and second through holes of the link 212 of the N-phase circuit breaker is 34mm, and the distance between the first and second through holes of the a-phase circuit breaker, the B-phase circuit breaker and the C-phase circuit breaker is 33.5 mm.
Specifically, as shown in fig. 26, the connecting rod 212 includes a connecting rod insertion portion 212a which is installed and matched with the movable contact 102, and a cantilever connecting portion 212b which is connected to one end of the connecting rod insertion portion 212a and connected to the cantilever 211; the first connection portion 2120 is provided on the link insertion portion 212a, and the second connection portion 2121 is provided on the cantilever connection portion 212 b. The connecting rod insertion portion 212a is plate-shaped, the cantilever connection portion 212b is a transverse U-shaped structure connected to one end of the connecting rod insertion portion 212a, one side of the side walls on both sides of the U-shaped structure is connected to the connecting rod insertion portion 212a, the opening of the U-shaped notched groove 2122 of the U-shaped structure faces one side of the connecting rod 212, and the cantilever 211 is provided with a cantilever mounting hole 2110 corresponding to the second through hole; the connecting rod 212 and the cantilever 211 are connected together by the first pin shaft 215 which sequentially passes through the second through hole on one side wall of the U-shaped structure, the cantilever mounting hole 2110 and the second through hole on the other side wall of the U-shaped structure.
As shown in fig. 27, the first pin 215 includes a pin bar 2151 and a pin cap 2152 disposed at an end of the pin bar 2151, the pin bar 2151 is recessed near the other end around a side wall of the pin bar 2151 to form an annular groove 2153, when the first pin is installed, the pin bar 2151 of the first pin 215 sequentially passes through the second through hole of the side wall of one side of the U-shaped structure, the cantilever installation hole 2110 and the second through hole of the side wall of the other side of the U-shaped structure to install and fix the connecting rod 212, the second through hole of the side wall of the other side of the U-shaped structure and the annular groove 2153, and the pin cap 2152 is fastened to the outer side wall of the side. The first pin shaft 215 is adopted to fixedly mount the connecting rod 212 and the cantilever 211, so that the mounting is convenient, and the structure is stable and reliable. The other end of the pin shaft 2151 is provided with a chamfer 2155 to facilitate mounting, and the chamfer 2155 facilitates mounting of the first pin 215.
As shown in fig. 26, the movable contact 102 is provided with a limiting protrusion 1025 protruding toward one side of the cantilever 211 for limiting the movement stroke of the connecting rod 212. The limit projection 1025 limits the movement stroke of the link 212.
As shown in fig. 24 and 26, one end of the movable contact 102 is pivotally connected to a first conductive copper bar 118 of the circuit breaker, a movable contact arranged at the other end of the movable contact 102 faces a stationary contact of a stationary contact 101 arranged at an end of a second conductive copper bar 119, and the movable contact 102 rotates to close the stationary contact and the movable contact to connect a main circuit. The fixed support 112 is fixedly connected below the end of the first conductive copper bar 118, a U-shaped groove 1121 is formed in one side of the fixed support 112, and the second pin 113 penetrates through the U-shaped groove 1121 to be pivotally connected with the other end of the movable contact 102. The movable contact 102 is mounted on the first conductive copper bar 118 through the fixed bracket 112 and the second pin 113, and the structure is simple and compact.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (10)
1. The utility model provides a conventional circuit breaker energy storage handle anti-sticking stagnates device, includes circuit breaker body (1), installs in operating device (2) of circuit breaker body (1) one side, and energy storage handle (3) are installed to one side lateral wall of operating device (2), carry out manual energy storage, its characterized in that to operating device (2) through rotating energy storage handle (3): the operating mechanism (2) comprises a V-shaped rotating shaft (4), one end of the V-shaped rotating shaft (4) extends out of the side wall of one side of the operating mechanism (2), a ratchet wheel (5) linked with the energy storage handle (3) is sleeved at one end of the V-shaped rotating shaft (4), and a pawl (6) linked with the ratchet wheel (5) is arranged on one side, facing the ratchet wheel (5), of the energy storage handle (3); the energy storage handle (3) is rotated to drive the ratchet wheel (5) to rotate through the pawl (6); an anti-clamping stagnation structure for preventing the pawl (6) and the ratchet wheel (5) from being clamped in an initial state is arranged between the pawl (6) and the ratchet wheel (5) and the energy storage handle (3); the anti-blocking structure comprises an anti-blocking plate (8), and when the energy storage handle (3) is in an initial state, the pawl (6) is separated from the ratchet wheel (5) by the anti-blocking plate (8).
2. The conventional circuit breaker energy storage handle anti-jamming device of claim 1, characterized in that: the clamping stagnation preventing plate (8) is convexly provided with a flange (801) for separating the ratchet wheel (5) and the pawl (6), and when the operating mechanism releases energy, the pawl (6) is placed on the flange (801) to prevent the pawl (6) and the ratchet wheel (5) from being clamped.
3. The conventional circuit breaker energy storage handle anti-jamming device of claim 2, characterized in that: the flange (801) is in a one-tenth arc shape, and inclined surfaces (805) which incline downwards are arranged at two ends of the flange (801).
4. The conventional circuit breaker energy storage handle anti-jamming device of claim 1, characterized in that: the anti-clamping stagnation plate (8) is sleeved on the V-shaped rotating shaft (4) and is positioned below the ratchet wheel (5).
5. The conventional circuit breaker energy storage handle anti-clamping stagnation device as claimed in any one of claims 1 to 4, wherein: the anti-clamping stagnation plate (8) comprises an annular plate (81) and a strip-shaped extension plate (82) extending towards one side of the annular plate (81), a mounting round hole (802) is formed in the middle of the annular plate (81), and the anti-clamping stagnation plate (8) is sleeved on the V-shaped rotating shaft (4) through the mounting round hole (802); the end part of the extension plate (82) is provided with a screw fixing hole (803) for fixing the anti-clamping stagnation plate (8), the anti-clamping stagnation plate (8) is inserted into the screw fixing hole (803) through a screw to fix the anti-clamping stagnation plate (8) on one side wall of the operating mechanism (2), and the flange (801) is convexly arranged at the joint of the annular plate (81) and the extension plate (82).
6. The conventional circuit breaker energy storage handle anti-jamming device of claim 1, characterized in that: the energy storage handle (3) is provided with a reset spring (61) for resetting the pawl (6), one end of the pawl (6) is pivotally connected to the energy storage handle (3), the other end of the pawl (6) is connected with one end of the reset spring (61), and the other end of the reset spring (61) is fixed on the energy storage handle (3); the pawl (6) is provided with a linkage protrusion (62) which is matched with the ratchet wheel (5) in a linkage way and protrudes towards one side, and the other end of the pawl (6) is provided with a spring hook (63) which is connected with a return spring (61) and bends upwards.
7. The conventional circuit breaker energy storage handle anti-clamping stagnation device of claim 6, wherein: the linkage protrusion (62) is a pointed protrusion, and the end part of one side, in contact with the linkage protrusion (62), of the tooth (51) of the ratchet wheel (5) is the pointed protrusion.
8. The conventional circuit breaker energy storage handle anti-jamming device of claim 1, characterized in that: the circuit breaker comprises a circuit breaker body (1), wherein a fixed contact (101) corresponding to each pole of a conductive system is installed on the circuit breaker body (1), a movable contact (102) corresponding to the fixed contact (101) of each pole of the conductive system is installed on the circuit breaker body (1), when the circuit breaker is switched on or switched off, a large rotating shaft (21) of an operating mechanism (2) drives the movable contact (102) to move to contact with and separate from the fixed contact (101) so as to switch on and switch off a main circuit, one end of the movable contact (102) is pivotally connected to the circuit breaker body (1), a cantilever (211) corresponding to each pole of the conductive system is installed on the large rotating shaft (21), a connecting rod (212) linked with the cantilever (211) is installed on one side, facing the cantilever (211), of the movable contact (102), one end of the connecting rod (212) is connected with the movable contact (102), the other end of the connecting rod is pivotally connected with the end of, the other end of the connecting rod (212) is provided with a second connecting part (2121) connected with the cantilever (211); the distance between the first connecting part (2120) and the second connecting part (2121) of the corresponding connecting rod (212) of the breaker far away from the breaker operating mechanism (2) is larger than the distance between the first connecting part (2120) and the second connecting part (2121) of other corresponding connecting rods (212).
9. The conventional circuit breaker energy storage handle anti-jamming device of claim 8, wherein: the first connecting portion (2120) is a first through hole formed in the end portion of the connecting rod (212), the moving contact (102) is provided with a mounting groove (1021) facing the side wall of the connecting rod (212) and matched with one end of the connecting rod (212), and one end of the connecting rod (212) is mounted in the mounting groove (1021) through the first through hole and is in pivot connection with the moving contact (102).
10. The conventional circuit breaker energy storage handle anti-jamming device of claim 8, wherein: the second connecting part (2121) is a second through hole formed in the other end of the connecting rod (212), and one end of the cantilever (211) is provided with a cantilever mounting hole (2110) matched with the second through hole in a mounting mode.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610919514.6A CN107978498B (en) | 2016-10-21 | 2016-10-21 | Universal circuit breaker energy storage handle anti-clamping stagnation device |
| ES16919247T ES2908069T3 (en) | 2016-10-21 | 2016-11-21 | Universal Circuit Breaker Energy Storage Handle Anti-jam Apparatus |
| PCT/CN2016/106610 WO2018072255A1 (en) | 2016-10-21 | 2016-11-21 | Universal circuit breaker energy storage handle anti-jamming apparatus |
| BR112019007702-2A BR112019007702B1 (en) | 2016-10-21 | 2016-11-21 | ANTI-LOCK DEVICE FOR UNIVERSAL CIRCUIT BREAKER ENERGY STORAGE CABLE |
| EP16919247.3A EP3531436B1 (en) | 2016-10-21 | 2016-11-21 | Universal circuit breaker energy storage handle anti-jamming apparatus |
| MYPI2019002104A MY194853A (en) | 2016-10-21 | 2016-11-21 | Universal circuit breaker energy storage handle anti-jamming apparatus |
| RU2019115091A RU2716009C1 (en) | 2016-10-21 | 2016-11-21 | Anti-clamping device energy-absorbing handle universal circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610919514.6A CN107978498B (en) | 2016-10-21 | 2016-10-21 | Universal circuit breaker energy storage handle anti-clamping stagnation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107978498A CN107978498A (en) | 2018-05-01 |
| CN107978498B true CN107978498B (en) | 2020-07-28 |
Family
ID=62004507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610919514.6A Active CN107978498B (en) | 2016-10-21 | 2016-10-21 | Universal circuit breaker energy storage handle anti-clamping stagnation device |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP3531436B1 (en) |
| CN (1) | CN107978498B (en) |
| BR (1) | BR112019007702B1 (en) |
| ES (1) | ES2908069T3 (en) |
| MY (1) | MY194853A (en) |
| RU (1) | RU2716009C1 (en) |
| WO (1) | WO2018072255A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109632961B (en) * | 2019-01-22 | 2021-12-14 | 铜仁学院 | Prestress nondestructive testing method and device |
| CN118156099A (en) * | 2024-05-09 | 2024-06-07 | 北陆电气有限公司 | Quick-mounting operating mechanism of universal circuit breaker, circuit breaker and assembly method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5489755A (en) * | 1994-03-18 | 1996-02-06 | General Electric Company | Handle operator assembly for high ampere-rated circuit breaker |
| JPH0877858A (en) * | 1994-08-31 | 1996-03-22 | Matsushita Electric Works Ltd | Support structure of movable contactor |
| CN1617278A (en) * | 2004-12-01 | 2005-05-18 | 上海电器科学研究所（集团）有限公司 | Energy storage mechanism for air circuit breaker |
| CN2833865Y (en) * | 2005-11-17 | 2006-11-01 | 上海电器股份有限公司人民电器厂 | Self-balancing circuit breaker contact device |
| CN103681022A (en) * | 2013-12-11 | 2014-03-26 | 浙江电器开关有限公司 | Frame breaker energy storage transmission device |
| CN206116320U (en) * | 2016-10-21 | 2017-04-19 | 浙江正泰电器股份有限公司 | Conventional circuit -breaker energy storage handle prevented clamping stagnation device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB434282A (en) * | 1934-02-03 | 1935-08-29 | Henry Howard Sprigg | Improvements in and relating to automatic circuit breakers |
| FR2744563B1 (en) * | 1996-02-06 | 1998-04-03 | Schneider Electric Sa | CONTROL MECHANISM OF A CIRCUIT-BREAKER WITH RELEASABLE LOCK ON A SHORT-CIRCUIT |
| JPH10199376A (en) * | 1997-01-09 | 1998-07-31 | Nissin Electric Co Ltd | Electrically driven operation device of circuit breaker |
| US6210189B1 (en) * | 1998-07-30 | 2001-04-03 | Harold T. Gantt | Rigid christmas light installation system |
| KR100908373B1 (en) * | 2007-08-20 | 2009-07-20 | 엘에스산전 주식회사 | Drive motor used for closing spring charging device of air circuit breaker |
| US8592706B2 (en) * | 2010-09-14 | 2013-11-26 | Eaton Corporation | Charging handle apparatus and switchgear apparatus |
| CN102543501B (en) * | 2011-12-02 | 2013-02-06 | 万控集团有限公司 | Circuit-breaker spring actuating mechanism |
-
2016
- 2016-10-21 CN CN201610919514.6A patent/CN107978498B/en active Active
- 2016-11-21 BR BR112019007702-2A patent/BR112019007702B1/en active IP Right Grant
- 2016-11-21 EP EP16919247.3A patent/EP3531436B1/en active Active
- 2016-11-21 MY MYPI2019002104A patent/MY194853A/en unknown
- 2016-11-21 WO PCT/CN2016/106610 patent/WO2018072255A1/en unknown
- 2016-11-21 ES ES16919247T patent/ES2908069T3/en active Active
- 2016-11-21 RU RU2019115091A patent/RU2716009C1/en active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5489755A (en) * | 1994-03-18 | 1996-02-06 | General Electric Company | Handle operator assembly for high ampere-rated circuit breaker |
| JPH0877858A (en) * | 1994-08-31 | 1996-03-22 | Matsushita Electric Works Ltd | Support structure of movable contactor |
| CN1617278A (en) * | 2004-12-01 | 2005-05-18 | 上海电器科学研究所（集团）有限公司 | Energy storage mechanism for air circuit breaker |
| CN2833865Y (en) * | 2005-11-17 | 2006-11-01 | 上海电器股份有限公司人民电器厂 | Self-balancing circuit breaker contact device |
| CN103681022A (en) * | 2013-12-11 | 2014-03-26 | 浙江电器开关有限公司 | Frame breaker energy storage transmission device |
| CN206116320U (en) * | 2016-10-21 | 2017-04-19 | 浙江正泰电器股份有限公司 | Conventional circuit -breaker energy storage handle prevented clamping stagnation device |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3531436A1 (en) | 2019-08-28 |
| EP3531436A4 (en) | 2020-04-29 |
| BR112019007702A2 (en) | 2019-07-02 |
| BR112019007702B1 (en) | 2023-01-03 |
| EP3531436B1 (en) | 2021-12-15 |
| ES2908069T3 (en) | 2022-04-27 |
| WO2018072255A1 (en) | 2018-04-26 |
| MY194853A (en) | 2022-12-20 |
| CN107978498A (en) | 2018-05-01 |
| RU2716009C1 (en) | 2020-03-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107978498B (en) | Universal circuit breaker energy storage handle anti-clamping stagnation device | |
| JPH11339608A (en) | Automonous operation mechanism for electric switch device | |
| EP2148351A2 (en) | Mold Cased Circuit Breaker | |
| EP1557851A1 (en) | Electrical switching apparatus interface assembly and operating handle attachment therefor | |
| WO2017020816A1 (en) | Circuit breaker energy storage operating mechanism | |
| CN1171268C (en) | Circuit breaker with automatic catch to prevent rebound of blow open contact arm | |
| CA2951428C (en) | High current, compact fusible disconnect switch with dual slider bar actuator assembly | |
| EP1914773B1 (en) | Operation counter driving apparatus for air circuit breaker | |
| EP3291273B1 (en) | Operating mechanism of circuit breaker | |
| CN201758086U (en) | Safety interlocking mechanism for fixed metal closed high-voltage switching device | |
| WO2017020819A1 (en) | Circuit breaker interlocking apparatus | |
| CN204614743U (en) | There is the tripping assembly of stopping means | |
| EP2812903A1 (en) | Electrical contact apparatus, circuit breakers, and electrical contact assemblies including cam lever, and methods of operation | |
| CN103021746B (en) | Operating mechanism controlling and protecting switching device | |
| EP3151260B1 (en) | Charging handle apparatus and circuit interrupter | |
| US11817276B2 (en) | Low voltage switching device | |
| CN206116320U (en) | Conventional circuit -breaker energy storage handle prevented clamping stagnation device | |
| KR101052696B1 (en) | Handle of circuit breaker | |
| CA2788790C (en) | Electrical switching apparatus, and stored energy assembly and energy storage and release control mechanism therefor | |
| CN102136378A (en) | Operating mechanism of simple metal enclosed switch equipment | |
| CN218631867U (en) | Circuit breaker | |
| CN105513909A (en) | Circuit breaker crossbar assembly | |
| CN220106285U (en) | Neutral pole unit and automatic change-over switch | |
| CN107622883A (en) | A kind of direct-current isolating switch | |
| CN209249379U (en) | A kind of vacuum circuit breaker closing operation component |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20180501 Assignee: Wenzhou Zhengtai Electrical Technology Co., Ltd Assignor: Zhejiang Chint Electrics Co.,Ltd. Contract record no.: X2020330000078 Denomination of invention: Anti jamming device for energy storage handle of universal circuit breaker Granted publication date: 20200728 License type: Common License Record date: 20201021 |