WO2018072255A1

WO2018072255A1 - Universal circuit breaker energy storage handle anti-jamming apparatus

Info

Publication number: WO2018072255A1
Application number: PCT/CN2016/106610
Authority: WO
Inventors: 雷鸿健; 王克明; 杨颖杰; 陈鑫浩; 蒋礼
Original assignee: 浙江正泰电器股份有限公司
Priority date: 2016-10-21
Filing date: 2016-11-21
Publication date: 2018-04-26
Also published as: EP3531436B1; CN107978498B; RU2716009C1; BR112019007702B1; MY194853A; BR112019007702A2; EP3531436A4; EP3531436A1; ES2908069T3; CN107978498A

Abstract

A universal circuit breaker energy storage handle anti-jamming apparatus, comprising a circuit breaker body, an operating mechanism mounted at a side of the circuit breaker body, and an energy storage handle mounted on the outer sidewall of a side of the operating mechanism. The energy storage handle is rotated to manually store energy in the operating mechanism. The operating mechanism comprises a V-shaped rotating shaft. One extremity of the V-shaped rotating shaft protrudes the sidewall at a side of the operating mechanism. One extremity of the V-shaped rotating shaft is sleeved with a ratchet linked to the energy storage handle. A cleat linked to the ratchet is provided on the side of the energy storage handle facing the ratchet. The rotation of the energy storage handle drives via the cleat the ratchet to rotate. An anti-jamming structure preventing the cleat and the ratchet from jamming is provided between the cleat and the ratchet. The anti-jamming structure comprises an anti-jamming plate. When the energy storage handle is in an initial state, the anti-jamming plate separates the cleat from the ratchet.

Description

Universal circuit breaker energy storage handle anti-stuck device

Technical field

The invention relates to the field of low-voltage electrical appliances, in particular to a universal circuit breaker.

Background technique

The universal circuit breaker realizes the product opening and closing through the operating mechanism. When the universal circuit breaker is manually stored, the external energy is used to rotate the energy storage handle, and the V-shaped shaft is rotated by the forceps on the energy storage handle and the ratchet on the operating mechanism to compress the energy storage spring of the operating mechanism to complete the manual energy storage. After the operating mechanism releases the ratchet, the ratchet returns to the initial position. In the initial position, the forceps on the energy storage handle and the ratchet on the operating mechanism do not transmit torque, and the energy storage handle needs to be rotated by a certain angle to interlock the forceps with the ratchet. Transfer torque. At present, when the operating mechanism releases energy, the ratchet wheel rotates excessively due to machining error and fitting error of the component, so that the ratchet wheel contacts the latch surface of the energy storage handle. At this time, it is not necessary to rotate the energy storage handle by a certain angle to start. Energy storage, because the gap between the initial state energy storage handle and the mask is small, there is not enough space to move the energy storage handle, and it is difficult to complete the energy storage operation.

The universal circuit breaker drives the V-shaped shaft of the operating mechanism to realize electric energy storage by the motor. The electric energy storage process turns the motor on and off, the motor gear transmission reduces the rotation speed and drives to the last stage gear (aluminum plate) and the blind hole on the aluminum plate. (or the through hole) cooperates with the V-shaped shaft of the operating mechanism to transmit the torque to the operating mechanism to realize the energy storage of the operating mechanism. At present, a blind hole (or through hole) having the same cross section as the V-shaped shaft of the operating mechanism is machined on the aluminum plate, and the torque is transmitted through the blind hole (or through hole) to cooperate with the V-shaped shaft, which is processed by an aluminum material. As a whole, due to product assembly requirements, there is a clearance fit between the aluminum plate and the V-shaped shaft. During the transmission process, the aluminum disk is in line contact with the V-shaped shaft. In the electric energy storage process, the motor aluminum disk blind hole (or through hole) ) Large wear and low life.

The main circuit of the universal circuit breaker is divided into four phases of N/A/B/C or three phases of A/B/C. The main circuit of each phase consists of two parts: a static contact and a moving contact. When the circuit breaker is closed, the large rotating shaft of the operating mechanism rotates, and the moving contact rotates a certain angle along the rotating center through the connecting rod, and then contacts the static contact, and the main circuit is turned on. When the switch is closed, the contact spring of the moving contact continues to compress after the contact of the static and dynamic silver points, forming an overtravel and increasing the final pressure of the contact to meet the performance requirements of the product. At present, due to the initial structural design of the universal circuit breaker, in the case of using the same components, the remaining phase overtravel away from the B phase will be worse than B, and there is a risk of insufficient overtravel and insufficient final pressure of the moving contact.

Summary of the invention

The object of the present invention is to overcome the deficiencies of the prior art and to provide a universal circuit breaker with stable and stable performance, simple and compact structure, and good user experience.

In order to achieve the above object, the present invention adopts the following technical solutions:

The utility model relates to a universal circuit breaker energy storage handle anti-jamming device, comprising a circuit breaker body 1 , an operating mechanism 2 mounted on one side of the circuit breaker body 1 , and an energy storage handle 3 mounted on one outer side wall of the operating mechanism 2 The operation mechanism 2 includes a V-shaped rotating shaft 4, and one end of the V-shaped rotating shaft 4 protrudes from one side wall of the operating mechanism 2, and one end of the V-shaped rotating shaft 4 is set. a ratchet 5 associated with the energy storage handle 3, a side of the energy storage handle 3 facing the ratchet 5 is provided with a latch 6 interlocking with the ratchet 5; the rotating energy storage handle 3 drives the ratchet 5 to rotate by the latch 6; the latch 6 An anti-jamming structure is provided between the ratchet wheel 5 and the ratchet wheel 5; the anti-jamming structure includes an anti-jamming plate 8. When the energy storage handle 3 is in an initial state, the anti-stuck plate 8 will be scorpion 6 and the ratchet 5 are separated.

Further, the anti-jamming plate 8 is provided with a flange flange 801 for separating the ratchet 5 and the latch 6. When the operating mechanism is released, the latch 6 rests on the flange flange 801 to prevent the latch 6 and the ratchet. 5 stuck.

Further, the flange flange 801 is a one-tenth arc shape, and both ends of the flange flange 801 are provided with an inclined downward slope 805.

Further, the anti-sticking plate 8 is fitted on the V-shaped shaft 4 and below the ratchet 5.

Further, the anti-sticking plate 8 includes a strip-shaped extending plate 82 extending toward the one side of the annular plate 81 and the annular plate 81. The middle portion of the annular plate 81 forms a mounting hole 802, and the anti-stucking plate 8 is installed. The round hole 802 is set on the V-shaped rotating shaft 4; the end of the extending plate 82 is provided with a screw fixing hole 803 for fixing the anti-stucking plate 8, and the anti-stucking plate 8 is inserted into the screw fixing hole 803 by a screw to prevent the anti-locking plate 8 Fixed to one side wall of the operating mechanism 2, the flange flange 801 is convexly disposed at the intersection of the annular plate 81 and the extension plate 82.

Further, a return spring 61 for resetting the latch 6 is mounted on the energy storage handle 3, one end of the latch 6 is pivotally coupled to the latch 6, and the other end of the latch 6 is coupled to one end of the return spring 61. The other end of the return spring 61 is fixed to the detent 6; the detent 6 is provided with a linkage protrusion 62 which is coupled with the ratchet 5 on one side, and the other end of the dice 6 is provided with a return spring 61. Connected upwardly bent spring hooks 63.

Further, the interlocking protrusion 62 is a pointed protrusion, and a side end of the rod 51 of the ratchet 5 that is in contact with the interlocking protrusion 62 is a pointed protrusion.

Further, the circuit breaker body 1 is mounted with a static contact 101 corresponding to each pole conductive system, and the circuit breaker body 1 is mounted with a movable contact 102 corresponding to the static contact 101 of each pole conductive system, and the circuit breaker is closed or divided. When the brake is applied, the large rotating shaft 21 of the operating mechanism 2 drives the movable contact 102 to contact and separate from the fixed contact 101 to open and close the main circuit, and one end of the movable contact 102 is pivotally connected to the circuit breaker body 1. A cantilever 211 corresponding to each pole conductive system is mounted on the large rotating shaft 21, and a connecting rod 212 coupled with the cantilever 211 is mounted on a side of the movable contact 102 toward the cantilever 211. One end of the connecting rod 212 is connected to the movable contact 102. The other end is pivotally connected to the end of the cantilever 211. One end of the connecting rod 212 is provided with a first connecting portion 2120 connected to the movable contact 102, and the other end of the connecting rod 212 is provided with a second connection connected to the cantilever 211. a portion 2121; the distance between the first connecting portion 2120 and the second connecting portion 2121 of the corresponding connecting rod 212 of the circuit breaker near the circuit breaker operating mechanism 2 is greater than the first connecting portion 2120 and the second portion of the other corresponding connecting rod 212 The distance of the connecting portion 2121.

Further, the first connecting portion 2120 is a first through hole opened at an end of the connecting rod 212, and the movable contact 102 is disposed with a mounting groove 1021 that is fitted to one end of the connecting rod 212 toward the side wall of the connecting rod 212, One end of the connecting rod 212 is pivotally connected to the moving contact 102 through the first through hole into the mounting groove 1021.

Further, the second connecting portion 2121 is a second through hole opened at the other end of the connecting rod 212, and one end of the cantilever 211 is provided with a cantilever mounting hole 2110 fitted to the second through hole.

The universal circuit breaker energy storage handle anti-jamming device of the invention has an anti-jamming structure between the tweezers and the ratchet of the energy storage handle to prevent the tweezers and the ratchet from being stuck, and the energy storage handle is in the initial state, the anti-card The stagnation structure separates the scorpion from the ratchet and enhances the feel of the customer. The anti-seize plate protrudes from a flange flange for separating the ratchet and the tweezer. When the operating mechanism is released, the scorpion rests on the flange flange to prevent the scorpion and the ratchet from becoming stuck.

DRAWINGS

1 is a schematic structural view of a circuit breaker body of the present invention;

2 is a schematic structural view of an energy storage handle of the present invention;

Figure 3 is a schematic structural view of the operating mechanism of the present invention;

Figure 4 is a side view of the operating mechanism of the present invention;

Figure 5 is a schematic structural view of the energy storage handle of the present invention in an initial state;

Figure 6 is an enlarged view of a portion A of Figure 5 of the present invention;

7 is a schematic structural view of the energy storage handle of the present invention when manually storing energy;

Figure 8 is an enlarged view of a portion B of Figure 7 of the present invention;

Figure 9 is a schematic view showing the ratchet and the scorpion stuck when the operating mechanism of the present invention is released;

Figure 10 is an enlarged view of a portion C of Figure 9 of the present invention;

Figure 11 is another schematic structural view of the operating mechanism of the present invention;

Figure 12 is another side view of the operating mechanism of the present invention;

Figure 13 is a schematic structural view of the anti-stuck plate installed in the present invention;

Figure 14 is an enlarged view of a portion D of Figure 13 of the present invention;

Figure 15 is a perspective view showing the structure of the anti-sticking plate of the present invention;

Figure 16 is another schematic structural view of the circuit breaker body of the present invention;

Figure 17 is another schematic view of the operating mechanism of the present invention;

Figure 18 is a perspective view of the motor of the present invention;

Figure 19 is a schematic structural view of a V-shaped rotating shaft of the present invention;

Figure 20 is a plan view of the aluminum pan of the present invention;

Figure 21 is a perspective view of an aluminum pan of the present invention;

Figure 22 is a schematic view of the back of the aluminum pan of the present invention;

Figure 23 is a schematic structural view of another embodiment of the aluminum disk of the present invention;

Figure 24 is a schematic structural view of the main body of the circuit breaker of the present invention;

Figure 25 is another schematic structural view of the operating mechanism of the present invention;

Figure 26 is a schematic structural view of a movable contact of the present invention;

Figure 27 is a schematic structural view of a connecting rod of the present invention;

Figure 28 is a schematic view showing the structure of the first pin shaft of the present invention.

detailed description

The specific embodiment of the universal circuit breaker of the present invention will be further described below with reference to the embodiments given in Figs. The universal circuit breaker of the present invention is not limited to the description of the following embodiments.

As shown in FIGS. 1, 16, 17, 24, and 25, the universal circuit breaker of the present invention includes a circuit breaker body 1. The circuit breaker body 1 includes a circuit breaker base, an operating mechanism 2 mounted on one side of the circuit breaker body 1 and The motor 7 and the outer side wall of the operating mechanism 2 are provided with an energy storage handle 3, and the rotating energy storage handle 3 can manually store the energy of the operating mechanism 2. The electric motor 7 can electrically store the circuit breaker through an external power source, and the energy storage handle 3 is located between the operating mechanism 2 and the motor 7; the circuit breaker base further includes a layered multi-phase conductive copper row. The figure shows a four-phase universal circuit breaker. The upper and lower layers of each phase are respectively provided with a first conductive copper row 118 and a second conductive copper row 119. Obviously, it can be set as a single-phase or more-phase circuit breaker, and is electrically conductive. Copper bars can also be placed in multiple layers.

As shown in Figures 1, 2, 3, 11, 12, 13, and 14, the universal circuit breaker of the present invention includes an energy storage handle anti-stuck device. The operating mechanism 2 includes a V-shaped rotating shaft 4 for performing energy storage. One end of the V-shaped rotating shaft 4 protrudes from one side wall of the operating mechanism 2. One end of the V-shaped rotating shaft 4 is provided with a ratchet 5 associated with the energy storage handle 3, and the energy storage handle 3 is disposed on one side of the ratchet 5 with a latch 6 interlocking with the ratchet 5; the rotating energy storage handle 3 drives the ratchet 5 to rotate by the latch 6; the latch 6 and the ratchet are disposed between the latch 6 and the ratchet 5 The anti-jamming structure of the stuck card comprises an anti-jamming plate 8. When the energy storage handle is in an initial state, the anti-jamming plate separates the dice 6 from the ratchet 5. The universal circuit breaker energy storage handle anti-jamming device of the invention has an anti-stuck structure between the tweezers and the ratchet of the energy storage handle to prevent the tweezers and the ratchet from being stuck, the energy storage handle is in an initial state, or is reset to In the initial state position, the anti-jamming structure separates the tweezers from the ratchets, improving the feel of the customer. As shown in FIGS. 5 and 6, under normal conditions, the ratchet 5 and the catch 6 are not interlocked in the initial state, and the interlocking projection 62 of the catch 6 is pressed against one side of the rod 51 of the ratchet 5.

As shown in FIGS. 7 and 8, when the energy storage handle 3 is normally stored for manual energy storage, the energy storage handle 3 needs to be rotated a certain angle to the other side of the linkage protrusion 62 of the die 6 and the other side of the rod 51 of the ratchet 5 buckle.

As shown in Figures 9 and 10, when the operating mechanism releases energy, the V-shaped shaft and the ratchet 5 are over-steered, and the ratchet 5 and the catch 6 are interlocked, causing a jam. At this time, the user needs a large external force to make The operating mechanism stores energy and affects the user experience.

As shown in FIG. 15, the anti-jamming structure includes an anti-jamming plate 8 which is disposed on the V-shaped rotating shaft 4 and located below the ratchet 5, and the anti-stucking plate 8 is installed between the side plate of the operating mechanism and the ratchet. When the operating mechanism is in the initial state, the anti-sticking plate 8 separates the dice 6 from the ratchet 5. In a preferred embodiment, the anti-jamming plate 8 is provided with a flange flange 801 for separating the ratchet 5 and the latch 6, and when the operating mechanism is released, the ratchet 5 is rotated and returned to the initial position. The catch 6 is placed on the flange flange 801 to prevent the catch 6 and the ratchet 5 from becoming stuck. The dice 6 and the ratchet 5 are separated by a flange flange 801 to prevent the catch 6 and the ratchet 5 from being stuck. Of course, other structures may be used to lift the dice 6 up, such as laterally inclined projections, or a structure such as a mating arm that cooperates with the anti-seize plate 8 on the dice 6.

As shown in FIGS. 13 and 14, when the operating mechanism is in the initial state or the position in which the release is reset to the initial state, the interlocking projection 62 of the latch 6 is rotated above the flange flange 801 to prevent the latch 6 and the ratchet 5 from being stuck. Stagnation.

As shown in FIG. 15 , specifically, the anti-snap plate 8 includes an annular extending plate 82 extending from one side of the annular plate 81 and the annular plate 81 , and a circular hole 802 is formed in a middle portion of the annular plate 81 . The anti-jamming plate 8 is fitted on the V-shaped rotating shaft 4 through the mounting hole 802; the end of the extending plate 82 is provided with a screw fixing hole 803 for fixing the anti-locking plate 8, and the anti-stucking plate 8 is inserted into the screw fixing hole by the screw. 803 fixes the anti-snap plate 8 to one side wall of the operating mechanism 2, and the flange flange 801 protrudes from the annular plate 81 and the extension plate 82. Pick up. The structure of the anti-locking plate 8 is simple and easy to process, and the annular plate 81 is fitted to the V-shaped rotating shaft 4 through the central mounting hole 802. The extending plate 82 is fastened by screws, and the structure is stable and reliable.

As shown in Figures 2 and 4, a return spring 61 is mounted on the energy storage handle 3 for resetting the latch 6, and one end of the latch 6 is pivotally coupled to the latch 6 and the other end of the latch 6 Connected to one end of the return spring 61, the other end of the return spring 61 is fixed to the latch 6; the latch 6 is convexly provided on one side with a linkage protrusion 62 of the ratchet 5 interlocking engagement, and the other end of the latch 6 An upwardly bent spring hook 63 connected to the return spring 61 is provided. The return spring 61 is used for the reset of the dice 6.

As shown in FIG. 2-4, specifically, the interlocking protrusion 62 is a pointed protrusion, and a side end of the rod 51 of the ratchet 5 that contacts the interlocking protrusion 62 is a pointed protrusion. Both the linkage projection 62 and the rod 51 are provided as pointed projections, and the fit is more tight and stable. The flange flange 801 is a one-tenth arc shape, and both ends of the flange flange 801 are provided with an inclined downward slope 805. The ramp 805 allows the catch 6 to more easily rotate over the flange flange 801.

As shown in FIG. 16-22, the operating mechanism 2 includes a V-shaped rotating shaft 4 for performing energy storage. One end of the V-shaped rotating shaft 4 extends from one side wall of the operating mechanism 2 and cooperates with the aluminum disk 72 of the motor 7 to form a V-shaped shape. One end side wall of the rotating shaft 4 is provided with a first V-shaped groove 401 which is fitted and fitted with the aluminum disk 72. The aluminum disk 72 is provided with a reinforcing connecting member having a hardness higher than that of the aluminum disk 72. The aluminum disk 72 passes through the reinforcing connecting piece and the V-shaped shape. The shaft 4 is coupled. The universal type circuit breaker motor transmission mechanism of the invention has a reinforcing connecting member with a hardness higher than that of the aluminum disk on the aluminum disk, the aluminum disk is matched with the reinforcing connecting piece, the V-shaped rotating shaft has low wear and high life, and the whole circuit breaker is improved. Performance and cost savings.

Specifically, the aluminum disk 72 is provided with an insertion hole 721 of one end of the V-shaped rotating shaft 4, and the reinforcing connecting member is disposed with the hardness of the side wall of the insertion hole 721 higher than that of the aluminum disk 72 and the first V-shaped groove 401. A mating wear shaft 722. The universal type circuit breaker motor transmission mechanism rives a wear preventing shaft which is in contact with the V-shaped rotating shaft in the insertion hole of the aluminum plate of the motor. The hardness of the anti-wear shaft is higher than that of the aluminum plate, the strength is high, and the electric energy storage wear is low. The life is high 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 disk 72 are attached to both sides of the motor mounting plate 73, respectively.

Specifically, the wear preventing shaft 722 is disposed throughout the entire aluminum pan 72. The structure of the wear-resistant shaft is more stable. The wear preventing shaft 722 is in surface contact with the side wall of the insertion hole 721. The wear preventing shaft 722 is in surface contact with the insertion hole 721. In the electric energy storage, the aluminum disk insertion hole is subjected to small pressure, small wear, and high life. The wear shaft 722 is a cylindrical shaft or a square shaft, and it is obvious that other shapes may be employed.

As shown in FIG. 21, the aluminum disk 72 includes a disk-shaped disk surface 7201. The central portion of the disk surface 7201 is recessed to form a first groove 7202. The middle portion of the first groove 7201 is convexly provided with a first boss 7203. The central portion of the boss 7203 is convexly provided with a second boss 7204 having a smaller diameter than the first boss 7203, and the insertion hole 721 is disposed at a middle portion of the second boss 7204. The overall structure of the aluminum pan 72 is reasonably designed.

As shown in FIG. 19, the other end side wall of the V-shaped rotating shaft 4 is provided with a second V-shaped groove 402, and the other side wall of the operating mechanism 2 is provided with a tight fit with the second V-shaped groove 402. The other end of the V-shaped rotating shaft 4 protrudes from the other side wall of the operating mechanism 2 and is fixed by the fastener 411. The first V-shaped groove 401 and the second V-shaped groove 402 are respectively disposed at both ends of the V-shaped rotating shaft 4, and the structure is simple and the processing is convenient.

As shown in FIG. 23, in order to reduce the wear between the V-shaped shaft 4 and the insertion hole 721, it is also possible to adopt The reinforcing connector 74 is a splicing boss 74 having a higher splicing material above the second boss 7204 of the aluminum disk, and the insertion hole 721 is disposed in the middle of the splicing boss 74, and the splicing boss 74 and the second boss 7204 are disposed. The rivet 7401 can be riveted and fixed. In this manner, the cost is high, and the wear of the aluminum disk insertion hole is smaller than that of the above embodiment.

As shown in FIG. 24-27, the circuit breaker body 1 is mounted with a plurality of static contacts 101 corresponding to the respective pole conductive systems, and the circuit breaker body 1 is mounted with a plurality of pairs corresponding to the static contacts 101 of the pole conductive systems. When the movable contact 102 is closed or opened, the large rotating shaft 21 of the operating mechanism 2 drives the moving contact 102 to contact and separate from the fixed contact 101 to open and close the main circuit, and the moving contact 102 One end is pivotally connected to the circuit breaker body 1. The large rotating shaft 21 is mounted with cantilever 211 corresponding to each pole conductive system, and each movable contact 102 is mounted with a connecting rod 212 coupled with the cantilever 211 toward one side of the cantilever 211. One end of the connecting rod 212 is connected to the movable contact 102, and the other end is pivotally connected to the end of the cantilever 211. One end of the connecting rod 212 is provided with a first connecting portion 2120 connected to the movable contact 102, and the connecting rod 212 The other end is provided with a second connecting portion 2121 connected to the cantilever 211; the circuit breaker is away from the first connecting portion 2120 and the second connecting link of the connecting rod 212 corresponding to the corresponding phase (N phase shown in the figure) of the circuit breaker operating mechanism 2 The distance of the portion 2121 is greater than the first connecting portion 2120 and the second connecting portion 2121 of the other corresponding links 212 Distance.

In the universal circuit breaker of the present invention, the distance between the first connecting portion and the second connecting portion of the corresponding connecting rod of the circuit breaker farther away from the circuit breaker operating mechanism is greater than the first connecting portion and the second connecting portion of the other corresponding connecting rods The distance is ensured to be close to the overtravel distance of the corresponding phase of the circuit breaker operating mechanism, increasing the final pressure of the contact and maintaining a reliable contact fit of the contacts.

In this embodiment, the universal circuit breaker includes 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 adjacent to the circuit breaker B phase, and the first connection of the circuit breaker N phase connecting rod 212 The distance between the portion 2120 and the second connecting portion 2121 is greater than the distance between the first connecting portion 2120 of the link 212 of the circuit breaker A phase, the circuit breaker B phase, and the circuit breaker C phase and the second connecting portion 2121. That is, the actual overtravel condition of the circuit breaker, the N, A, B, and C phases use the connecting rods of different lengths to connect the moving contact and the operating mechanism, thereby making up for the shortage of the other phases except the B phase. For example, the operating mechanism 2 is disposed close to the circuit breaker B, and the distance between the first connecting portion 2120 and the second connecting portion 2121 of the connecting rod 212 corresponding to the circuit breaker B is the smallest, and the circuit breaker A phase and the circuit breaker C correspond to each other. The distance between the first connecting portion 2120 of the connecting rod 212 and the second connecting portion 2121 is second, and the distance between the first connecting portion 2120 and the second connecting portion 2121. of the connecting rod 212 corresponding to the circuit breaker N is the largest. Of course, it can be adjusted according to actual conditions, and the distance between the first connecting portion 2120 of the connecting rod 212 corresponding to the circuit breaker A phase, the circuit breaker B phase, and the circuit breaker C and the second connecting portion 2121 can be as long as the circuit breaker N. The distance between the first connecting portion 2120 and the second connecting portion 2112 of the corresponding link 212 is the largest.

As shown in FIG. 24-26, the first connecting portion 2120 is a first through hole opened at an end of the connecting rod 212, and the movable contact 102 is mounted on the side wall of the connecting rod 212 to be mounted and fitted with one end of the connecting rod 212. The groove 1021 has one end of the connecting rod 212 pivotally connected to the moving contact 102 through the first through hole and the mounting groove 1021. The second connecting portion 2121 is a second through hole opened at the other end of the connecting rod 212, and one end of the cantilever 211 is provided with a cantilever mounting hole 2110 fitted to the second through hole. Preferably, the distance between the first through hole and the second through hole of the link 212 of the N-phase of the circuit breaker is 34 mm, and the first through hole and the second through hole of the circuit breaker A phase, the circuit breaker B phase, and the circuit breaker C phase The distance between the holes is 33.5 mm.

Specifically, as shown in FIG. 26, the link 212 includes a link insertion portion 212a that is fitted to the movable contact 102, and a cantilever connection portion 212b that is connected to the cantilever 211 at one end of the link insertion portion 212a; One connecting portion 2120 is provided on the link insertion portion 212a, and the second connecting portion 2121 is provided on the cantilever connecting portion 212b. The link insertion portion 212a has a plate shape, and the cantilever connection portion 212b is a lateral U-shaped structure connected to one end of the link insertion portion 212a, and one side of the side walls of the U-shaped structure is simultaneously connected to the link insertion portion 212a. The opening of the U-shaped notch groove 2122 of the U-shaped structure faces the side of the connecting rod 212. The cantilever 211 is provided with a cantilever mounting hole 2110 corresponding to the second through hole; further includes a first pin shaft 215, and the first pin shaft 215 The second through hole, the cantilever mounting hole 2110, and the second through hole of the other side wall of the U-shaped structure, which sequentially pass through the side wall of one side of the U-shaped structure, connect the link 212 and the cantilever 211 together.

As shown in FIG. 27, the first pin shaft 215 includes a pin shaft 2151 and a pin cap 2152 disposed at an end of the pin shaft 2151. The pin shaft 2151 is recessed around the side wall of the pin shaft 2151 near the other end. The annular groove 2153, when mounted, the pin shaft 2151 of the first pin shaft 215 sequentially passes through the second through hole of the side wall of the U-shaped structure, the cantilever mounting hole 2110, and the side wall of the other side of the U-shaped structure The two through holes are fixed to the connecting rod 212, the second through hole of the other side wall of the U-shaped structure and the annular groove 2153, and the pin cap 2152 is fastened to the outer side wall of one side wall of the U-shaped structure. The first pin 215 is used to fix and fix the connecting rod 212 and the cantilever 211, and the installation is convenient, and the structure is stable and reliable. The other end of the pin 2151 is provided with a chamfer 2155 for easy installation, and the chamfer 2155 facilitates the mounting of the first pin 215.

As shown in FIG. 26, the movable contact 102 protrudes toward one side of the cantilever 211 and is provided with a limiting protrusion 1025 for the movement stroke of the limiting link 212. The limit protrusion 1025 limits the movement stroke of the link 212.

As shown in FIGS. 24 and 26, one end of the movable contact 102 is pivotally connected to the first conductive copper row 118 of the circuit breaker, and the other end of the movable contact 102 is disposed to face the second conductive copper row 119. The static contact of the stationary contact 101 disposed at the end, the movable contact 102 is rotated such that the stationary contact and the movable contact are closed to close the main circuit. The fixing bracket 112 is fixedly connected to the lower end of the first conductive copper row 118. One side of the fixing bracket 112 is provided with a U-shaped slot 1121, and the second pin 113 passes through the U. The slot 1121 is pivotally coupled to the other end of the movable contact 102. The movable contact 102 is mounted on the first conductive copper row 118 through the fixing bracket 112 and the second pin 113, and the structure is simple and compact.

The above is a further detailed description of the present invention in connection with the specific preferred embodiments, and the specific embodiments of the present invention are not limited to the description. It will be apparent to those skilled in the art that the present invention may be made without departing from the spirit and scope of the invention.

Claims

The universal type circuit breaker energy storage handle anti-jamming device comprises a circuit breaker body (1), an operating mechanism (2) mounted on one side of the circuit breaker body (1), and an outer side wall of the operating mechanism (2) There is an energy storage handle (3), and the operating mechanism (2) is manually stored by rotating the energy storage handle (3), wherein the operating mechanism (2) comprises a V-shaped shaft (4) and a V-shaped shaft ( 4) One end extends out of one side wall of the operating mechanism (2), and one end of the V-shaped shaft (4) is provided with a ratchet (5) associated with the energy storage handle (3), and the energy storage handle (3) faces the ratchet (5) One side is provided with a tweezers (6) linked with the ratchet (5); the rotating energy storage handle (3) drives the ratchet (5) to rotate by the tweezers (6); the tweezers (6) and the ratchet (5) Between the two, there is an anti-jamming structure for preventing the scorpion (6) and the ratchet (5) from being stuck; the anti-jamming structure includes an anti-jamming plate (8), and the energy storage handle (3) is in the initial state, the anti-card The hysteresis plate (8) separates the tweezers (6) from the ratchet (5).
The anti-seize device for the energy storage handle of the universal circuit breaker according to claim 1, characterized in that the anti-jamming plate (8) is convexly provided with a flange convex for separating the ratchet (5) and the die (6). Edge (801), when the operating mechanism is released, the tweezers (6) rest on the flange flange (801) to prevent the tweezers (6) and the ratchet (5) from becoming stuck.
The anti-seize device for the energy storage handle of the universal circuit breaker according to claim 2, wherein the flange flange (801) is one-tenth of an arc shape, and the flange flange (801) Both ends are provided with a sloped downward slope (805).
The universal circuit breaker energy storage handle anti-stabilizing device according to claim 1, characterized in that the anti-sticking plate (8) is sleeved on the V-shaped rotating shaft (4) and located under the ratchet (5).
The universal type circuit breaker energy storage handle anti-stuck device according to any one of claims 1 to 4, characterized in that the anti-sticking plate (8) comprises an annular plate (81) and an annular plate (81) a strip-shaped extension plate (82) extending to one side, a central portion of the annular plate (81) is formed with a mounting hole (802), and the anti-lock plate (8) is fitted to the V-shaped shaft through the mounting hole (802) ( 4) upper; the end of the extension plate (82) is provided with a screw fixing hole (803) for fixing the anti-sticking plate (8), and the anti-jamming plate (8) is inserted into the screw fixing hole (803) by a screw to prevent the card from being stuck. The hysteresis plate (8) is fixed to one side wall of the operating mechanism (2), and the flange flange (801) is convexly disposed at the intersection of the annular plate (81) and the extension plate (82).
The universal circuit breaker energy storage handle anti-stuck device according to claim 1, further comprising a return spring (61) mounted on the energy storage handle (3) for resetting the tweezers (6), One end of the dice (6) is pivotally connected to the dice (6), the other end of the dice (6) is connected to one end of the return spring (61), and the other end of the return spring (61) is fixed to the dice ( 6) upper; the rafter (6) protrudes from one side with a linkage protrusion (62) of a ratchet (5) linkage, and the other end of the rafter (6) is connected with a return spring (61) The upwardly bent spring hook (63).
The universal type circuit breaker energy storage handle anti-jamming device according to claim 6, wherein the linkage protrusion (62) is a pointed protrusion, and the rod (51) of the ratchet (5) is linked with One end of the contact of the projection (62) is a pointed projection.
The anti-seize device for the energy storage handle of the universal circuit breaker according to claim 1, wherein: The circuit breaker body (1) is mounted with a static contact (101) corresponding to each pole conductive system, and the circuit breaker body (1) is mounted with a movable contact corresponding to the static contact (101) of each pole conductive system (102) When the circuit breaker is closed or opened, the large rotating shaft (21) of the operating mechanism (2) drives the moving contact (102) to contact and separate from the stationary contact (101) to open and close the main circuit. One end of the movable contact (102) is pivotally connected to the circuit breaker body (1), and a cantilever (211) corresponding to each pole conductive system is mounted on the large rotating shaft (21), and the movable contact (102) faces the cantilever ( One side of 211) is mounted with a connecting rod (212) that is coupled with the cantilever (211). One end of the connecting rod (212) is connected to the moving contact (102), and the other end is pivotally connected to the end of the cantilever (211). One end of the connecting rod (212) is provided with a first connecting portion (2120) connected to the movable contact (102), and the other end of the connecting rod (212) is provided with a second connecting portion connected with the cantilever (211) ( 2121); the distance between the first connecting portion (2120) and the second connecting portion (2121) of the corresponding connecting rod (212) of the circuit breaker near the circuit breaker operating mechanism (2) is greater than the other corresponding connecting rods (212) a first connecting portion (2120) and a second connecting portion ( Distance of 2121).
The universal type circuit breaker energy storage handle anti-seize device according to claim 8, wherein the first connecting portion (2120) is a first through hole opened at an end of the connecting rod (212), and is dynamically touched. A mounting groove (1021) is mounted on the side wall of the connecting rod (212) facing the connecting rod (212), and one end of the connecting rod (212) is inserted into the mounting groove through the first through hole. (1021) is pivotally connected to the movable contact (102).
The universal circuit breaker energy storage handle anti-stabilizing device according to claim 8, wherein the second connecting portion (2121) is a second through hole opened at the other end of the connecting rod (212), One end of the cantilever (211) is provided with a cantilever mounting hole (2110) fitted to the second through hole.