Operating system

Abstract

The utility model relates to the field of low-voltage electric appliances, in particular to an operating system, which is characterized in that when an operating mechanism is in a mechanism opening state and a mechanism tripping state, a second shaft is in limiting fit with a jump fastener to prevent an upper connecting rod from rotating relative to the jump fastener along a direction d2; the second shaft drives the moving contact assembly to rotate to a moving contact opening position when the operating mechanism is switched from a mechanism closing state to a mechanism opening state, so that the opening distance between the moving contact assembly and the corresponding static contact is L1; the second shaft drives the moving contact assembly to rotate to the moving contact tripping position when the operating mechanism is switched from the mechanism closing state to the mechanism tripping state, so that the opening distance between the moving contact assembly and the corresponding static contact is L2, and L2 is larger than L1. According to the operating system, different opening distances can be formed between the moving contact and the static contact during normal opening and releasing, and the service life is long.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of low voltage electrical apparatus, concretely relates to an operating system. BACKGROUND

[0002] The existing molded case circuit breaker includes an operating mechanism and a contact system, the contact system includes a movable contact assembly and a static contact used in cooperation, and the operating mechanism drives the movable contact assembly to rotate to be closed and disconnected with the static contact, wherein the operating mechanism generally includes a bracket, a traction rod, a lock catch, a jump catch, a re-catch, a main spring, a rocker arm component, an upper connecting rod and a lower connecting rod, and the operating mechanism has at least the following deficiencies:

[0003] I. The existing molded case circuit breaker has the same opening distance between the movable contact assembly and the static contact when normally tripping and tripping by tripping, if the opening distance is set to be large, although the breaking capacity is improved, the operating stroke of the upper connecting rod, the lower connecting rod and the main spring is large, which affects the mechanical life of the product, and if the opening distance is set to be small, although the mechanical life of the product is ensured, the breaking capacity of the product is limited.

[0004] II. The existing molded case circuit breaker is separated completely after the operating mechanism trips, and the action track of the two is changed after long time use, which may cause the re-catch to be unable to be caught. UTILITY MODEL CONTENTS

[0005] The utility model aims at overcoming at least one defect of the prior art, providing an operating system, which can form different opening distances between the movable contact and the static contact when normally tripping and tripping by tripping and has a long service life.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] An operating system includes an operating mechanism and a movable contact assembly, the operating mechanism includes a bracket, a lock catch and a rocker arm component rotatably arranged on the bracket respectively, a jump catch rotatably arranged on the bracket at one end and snap-fitted with the lock catch at the other end, an upper connecting rod rotatably connected with the middle part of the jump catch at one end and provided with a second shaft at the other end, and a main spring connected to the rocker arm component at one end and to the second shaft at the other end, the second shaft is used to be connected in transmission with the movable contact assembly of the switch electric appliance, and the main spring provides energy for tripping, closing and tripping operation of the operating mechanism, when the operating mechanism is switched from the mechanism closing state to the mechanism tripping state, the jump catch is rotated from the jump catch snap-fitting position to the jump catch tripping position by rotating in the direction d2;

[0008] In the mechanism tripping state and the mechanism tripping state of the operating mechanism, the second shaft is limited and matched with the jump catch to prevent the upper connecting rod from rotating relative to the jump catch in the direction d2;

[0009] The second shaft drives the moving contact assembly to rotate to the moving contact tripping position when the operating mechanism is switched from the mechanism closing state to the mechanism tripping state, so that the distance between the moving contact assembly and the corresponding static contact is L2, L2>L1.

[0010] The second shaft drives the moving contact assembly to rotate to the moving contact tripping position when the operating mechanism is switched from the mechanism closing state to the mechanism tripping state, so that the distance between the moving contact assembly and the corresponding static contact is L2, L2>L1.

[0011] Further, the trip member includes a trip member limiting surface, and the second shaft abuts against the trip member limiting surface to prevent the upper connecting rod from rotating relative to the trip member in the direction d2 when the operating mechanism is in the mechanism opening state and the mechanism tripping state.

[0012] Further, when the operating mechanism is reclosing, the external force drives the trip member to rotate in the direction d1 through the rocker member to reset to the trip member buckling position, and the lock member is also reset, so that the trip member and the lock member are restored and maintained in buckling cooperation.

[0013] Further, the trip member and the lock member always maintain limiting cooperation.

[0014] Further, the lock member includes a lock main plate, one end of the lock main plate being a main plate cooperation end, and the trip member always abuts against the main plate cooperation end.

[0015] Further, the trip member further includes a bent trip member buckling surface and a trip member cooperation surface; the trip member buckling surface abuts against the main plate cooperation end when the operating mechanism is in the normal state, and the trip member cooperation surface abuts against the main plate cooperation end when the operating mechanism is in the tripping state.

[0016] Further, the trip member cooperation surface is a circular surface, the center of which coincides with the rotation center of the trip member; and / or, one end of the trip member buckling surface away from the trip member cooperation surface and one end connected with the trip member cooperation surface are a buckling surface far end and a buckling surface near end respectively; the distance between the trip member buckling surface and the rotation axis of the trip member gradually increases from the buckling surface far end to the buckling surface near end.

[0017] Further, the trip member limiting surface, the trip member cooperation surface and the trip member buckling surface of the trip member are sequentially arranged and connected in the rotation direction of the trip member.

[0018] Further, the operating mechanism further includes a lower connecting rod, one end of the lower connecting rod being hinged to the upper connecting rod through the second shaft and the other end being connected to the moving contact assembly in transmission; one end of the upper connecting rod being hinged to the middle part of the trip member through the first shaft; and the rotation axes of the trip member, the lock member, the rocker member and the moving contact assembly are all parallel to the direction d5.

[0019] The first shaft is located between two ends of the main spring in a direction d4; the second shaft, the lower connecting rod and the movable contact assembly are located on one side of the jump catch in the direction d4; the jump catch, the lock catch and the tripping transmission structure are sequentially arranged along a direction d3, the direction d3, the direction d4 and the direction d5 are perpendicular to each other; the movable contact assembly is arranged to rotate in a direction d2 to be closed with the corresponding static contact and rotate in a direction d1 to be disconnected with the corresponding static contact, and the direction d1 and the direction d2 are opposite directions.

[0020] Further, the operating mechanism further comprises the rotationally arranged tripping transmission structure and the reset structure, the reset structure acts on the lock catch and the tripping transmission structure respectively, so that the lock catch and the tripping transmission structure have a tendency to rotate in the same direction; in the normal state, the operating mechanism establishes a first limiting cooperation between the tripping transmission structure and the lock catch, so that the lock catch and the jump catch maintain the snap cooperation; when the operating mechanism trips, the re-catch structure is driven to rotate by external force, so that the tripping transmission structure and the lock catch are released from the first limiting cooperation, and then the jump catch and the lock catch are released from the snap cooperation, and the lock catch and the tripping transmission structure establish a second limiting cooperation.

[0021] The operating mechanism of the utility model prolongs the service life of the operating mechanism of the switch electric appliance and ensures the breaking capacity when the operating mechanism is in the normal breaking and tripping breaking state, and the movable contact assembly is rotated to the movable contact breaking position and the movable contact tripping position respectively by the second shaft, so that the opening distance of the movable contact assembly and the static contact is different.

[0022] In addition, the jump catch and the lock catch always maintain the limiting cooperation, so that the operating mechanism can be successfully re-catched after tripping. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is the structure schematic view of the operating mechanism of the utility model in the first visual angle;

[0024] Figure 2 is the structure schematic view of the operating mechanism of the utility model in the second visual angle; Figure 1 is the enlarged structure schematic view of part 10 of the utility model;

[0025] Figure 3 is the structure schematic view of the operating mechanism of the utility model in the second visual angle;

[0026] Figure 4 is the cross-sectional view of the operating mechanism of the utility model, and the operating mechanism is in the closed state;

[0027] Figure 5 is the cross-sectional view of the switch electric appliance of the utility model, and the switch electric appliance is in the closed state;

[0028] Figure 6 is the cross-sectional view of the switch electric appliance of the utility model, and the switch electric appliance is in the open state;

[0029] Figure 7 is the cross-sectional view of the switch device, the switch device is in the tripping state;

[0030] Figure 8 is the structure schematic view of the jump buckle piece;

[0031] Figure 9 is the structure schematic view of the lock buckle piece;

[0032] Figure 10 is the structure schematic view of the traction rod;

[0033] Figure 11 is the structure schematic view of the rocker arm under the first visual angle;

[0034] Figure 12 is the structure schematic view of the rocker arm under the second visual angle;

[0035] Figure 13 is the structure schematic view of the bracket;

[0036] Figure 14 is the structure schematic view of the reset structure.

[0037] Explanation of reference signs

[0038] Operating mechanism 1234;

[0039] Bracket 100, bracket side plate 110, rotation limiting structure 11123, rocker arm shaft slot 111, first rocker arm stop 112, second rocker arm stop 113, stroke limiting hole 114, bracket limiting portion 115, traction rod mounting portion 116;

[0040] Traction rod 200, traction rod main body 210, traction rod assembly hole 211, cooperating piece mounting portion 220, traction rod limiting portion 230;

[0041] Cooperating piece 300;

[0042] Reset structure 400, single torsional spring 410, helical body 411, first spring arm 412, second spring arm 413, spring arm connecting section 414, spring arm assembling section 415, spring connecting rod 420;

[0043] Lock buckle piece 500, lock buckle piece main plate 510, main plate cooperating end 511, lock buckle piece mounting arm 520, lock buckle piece shaft hole 521, lock buckle piece spring hole 522, lock buckle piece stroke limiting portion 530, lock buckle piece cooperating portion 540, cooperating portion first limiting surface 541, cooperating portion second limiting surface 542;

[0044] Lock buckle pivot 550;

[0045] jump buckle 600, jump buckle clasp surface 610, jump buckle matching surface 620, jump buckle limiting surface 630, jump buckle shaft hole 640, jump buckle connecting hole 650, jump buckle blocking part 660;

[0046] rocker arm part 700, handle 710, rocker arm 720, rocker arm leg 721, rocker arm beam 722, jump buckle reset driving part 724;

[0047] upper connecting rod 810, upper connecting rod side plate 811;

[0048] second shaft 820;

[0049] jump buckle rotating shaft 830;

[0050] first shaft 840;

[0051] main spring 850;

[0052] lower connecting rod 860;

[0053] moving contact assembly 910, support rotating shaft 911, moving contact 912;

[0054] stationary contact 920. DETAILED DESCRIPTION

[0055] The following embodiments combined with the accompanying drawings further illustrate the specific embodiments of the switch device of the present application. The switch device of the present application is not limited to the following embodiments.

[0056] As shown in FIG. 1, it is an embodiment of the switch device of the present application, and the switch device of the embodiment is specifically a circuit breaker. Figures 1-14 As shown in FIG. 1, it is an embodiment of the switch device of the present application, and the switch device of the embodiment is specifically a circuit breaker.

[0057] As shown in FIG. 1, the switch device of the embodiment includes an operating mechanism 1234 and at least one set of contact system, the contact system includes a moving contact assembly 910 and a stationary contact 920 used in cooperation, the operating mechanism 1234 is in transmission connection with the moving contact assembly 910 to drive the moving contact assembly 910 to rotate to close and open with the stationary contact 920. Further, the moving contact assembly 910 includes a support rotating shaft 911 and a moving contact 912 arranged on the support rotating shaft 911. Further, when the switch device of the embodiment is a multi-phase switch device, that is, the number of contact systems is ≥2, the moving contact assemblies 910 of each contact system are driven by the operating mechanism 1234 to synchronously close and open with the corresponding stationary contact 920, and the support rotating shaft 911 of each moving contact assembly 910 is in an integrated structure or a split structure; in the switch device of the embodiment, each support rotating shaft 911 is preferably in an integrated structure. Figures 5-7

[0058] ​Further, the switch device of the embodiment further comprises a short-circuit protection mechanism (not shown in the figure) and an overload protection mechanism (not shown in the figure), which are used to drive the operating mechanism 1234 to trip when a short-circuit fault or an overload fault occurs in the circuit where the switch device of the embodiment is located, and drive the operating mechanism 1234 to rotate the movable contact assembly 910 to disconnect from the fixed contact 920. Further, the short-circuit protection mechanism and the overload protection mechanism are integrated or separated; both of them can be realized by the prior art, and will not be described here.

[0059] Further, the switch device of the embodiment has four working states, i.e., an electric appliance closing state, an electric appliance opening state, an electric appliance tripping state and an electric appliance re-tripping state, the electric appliance closing state, the electric appliance opening state and the electric appliance tripping state are three stable states, and the electric appliance re-tripping state is a transitional state; the operating mechanism 1234 also has four working states, i.e., a mechanism closing state, a mechanism opening state, a mechanism tripping state and a mechanism re-tripping state, i.e., the corresponding state of the operating mechanism 1234 when the switch device is in the electric appliance closing state, the electric appliance opening state, the electric appliance tripping state and the electric appliance re-tripping state, and the corresponding mechanism re-tripping state is also a transitional state; when the switch device is in the electric appliance closing state, the operating mechanism 1234 performs an opening operation to switch the switch device to the electric appliance opening state, and the operating mechanism 1234 is also switched to the mechanism opening state; when the switch device is in the electric appliance opening state, the operating mechanism 1234 performs a closing operation to switch the switch device to the electric appliance closing state, and the operating mechanism 1234 is also switched to the mechanism closing state; when the switch device is in the electric appliance closing state, the operating mechanism 1234 trips, the switch device is switched to the electric appliance tripping state, and the operating mechanism 1234 is also switched to the mechanism tripping state; when the switch device is in the electric appliance tripping state, an operating external force (such as a manual operating force of an operator) drives the operating mechanism 1234 to perform a re-tripping operation, the switch device is switched to the electric appliance re-tripping state, the operating mechanism 1234 is also switched to the mechanism re-tripping state, and after the operating external force is removed, the switch device is automatically switched to the electric appliance opening state and the operating mechanism 1234 is automatically switched to the mechanism opening state.

[0060] Further, the switch device of the embodiment further comprises a housing structure for accommodating the operating mechanism 1234 and the contact system.

[0061] The utility model discloses an operating system, operating system includes operating mechanism 1234 and movable contact assembly 910.

[0062] As Figures 1-14 Shown, for operating mechanism 1234 one embodiment.

[0063] As Figure 1As shown, the operating mechanism 1234 in this embodiment has a length direction of d3, a width direction of d5, and a height direction of d4, which are perpendicular to each other.

[0064] like Figure 1 , 3 As shown in Figure 7, the operating mechanism 1234 of this embodiment includes a bracket 100, a locking member 500 and a rocker arm component 700 respectively rotatably mounted on the bracket 100, a jumper 600 with one end rotatably mounted on the bracket 100 and the other end cooperating with the locking member 500, an upper connecting rod 810 with one end rotatably connected to the middle of the jumper 600 and the other end provided with a second shaft 820, a main spring 850 with one end connected to the rocker arm component 700 and the other end connected to the second shaft 820, and a rotatably mounted release transmission structure. The second shaft 820 is also used to drive the moving contact assembly 910 of the switching device to rotate and close and open with the stationary contact 920; the main spring 850 provides energy for the opening, closing and tripping operations of the operating mechanism 1234. When the operating mechanism 1234 performs the closing and opening operations, the main spring 850 first stores energy and then releases energy. When the operating mechanism 1234 trips in the closing state, the main spring 850 releases energy and drives the operating mechanism 1234 to switch to the tripping state. In the normal state (i.e., the switching device in this embodiment is in the normal state), that is, during the operation of the operating mechanism 1234 in the closed state, the open state, during the normal closing operation, or during the normal opening operation (non-tripping opening process), the trip fastener 600 and the locking fastener 500 maintain a latching engagement, and the locking fastener 500 maintains a first limit engagement with the tripping transmission structure; in the closed state, the tripping transmission structure of the operating mechanism 1234 in this embodiment is driven by an external force (e.g., the driving force of the short-circuit protection mechanism, the driving force of the overload protection mechanism, or the driving force of the trip unit) to rotate, causing the tripping transmission structure to release the first limit engagement with the locking fastener 500, and then the trip fastener 600 is in the main spring 850. Under the action of the mechanism, the trip fastener 600 drives the locking fastener 500 to rotate, thereby releasing the latching engagement between the trip fastener 600 and the locking fastener 500 and establishing a second limiting engagement between the locking fastener 500 and the tripping transmission structure. When the operating mechanism 1234 performs a re-clamping operation in the disengaged state, the operating force drives the rocker arm component 700 to rotate, and the trip fastener 600 rotates and resets under the drive of the rocker arm component 700. The tripping transmission structure and the locking fastener 500 rotate and reset respectively, thereby releasing the second limiting engagement between the tripping transmission structure and the locking fastener 500 and establishing a first limiting engagement. The trip fastener 600 and the locking fastener 500 are restored and maintain the latching engagement. The operating mechanism 1234 switches to the re-clamping state. After the operating force is removed, the operating mechanism 1234 automatically switches to the tripping state.

[0065] Specifically, the tripping transmission structure is driven by an external force to rotate along direction d2, thus releasing the first limiting engagement with the locking member 500. The jumping member 600 rotates along direction d2 under the action of the main spring 850, and the jumping member 600 drives the locking member 500 to rotate along direction d2, causing the jumping member 610 to release the latching engagement with the locking member 510. When the operating mechanism 1234 resets from the mechanism's tripped state, the jumping member 610, the locking member 500, and the tripping transmission structure rotate along direction d1 to reset. Directions d1 and d2 are opposite to each other. The rotational axes of the traction rod 200, the locking member 500, the jumping member 600, the moving contact assembly 910, and the axis of the second shaft 820 are all parallel to direction d5. The moving contact assembly 910 closes with the corresponding stationary contact 920 by rotating along direction d2, and disconnects from the corresponding stationary contact 920 by rotating along direction d1.

[0066] Furthermore, such as Figures 5-7 The directions shown are clockwise (d1) and counterclockwise (d2).

[0067] Furthermore, the operating mechanism 1234 of this embodiment also includes a reset structure 400, which acts on both the locking element 500 and the tripping transmission structure. When the operating mechanism 1234 switches from the closed state to the tripped state, the reset structure 400 stores energy. When the operating mechanism 1234 re-engages from the tripped state, the reset structure 400 releases energy, driving both the locking element 500 and the tripping transmission structure to reset. Furthermore, the reset structure 400 acts on both the locking element 500 and the tripping transmission structure, causing them to tend to rotate in the same direction.

[0068] Furthermore, the upper connecting rod 810 is rotatably connected to the jump fastener 600 via the first shaft 840; the operating mechanism 1234 of this embodiment also includes a lower connecting rod 860, one end of which is rotatably connected to the upper connecting rod 810 via the second shaft 820, and the other end of which is drive-connected to the moving contact assembly 910—specifically, this end of the lower connecting rod 860 is drive-connected to the support rotating shaft 911 of the moving contact assembly 910 via a connecting shaft, so as to drive the moving contact assembly 910 to reciprocate and rotate to close and open with the stationary contact 920.

[0069] like Figure 1 , 3 As shown in Figures 9 and 13, the locking element 500 is respectively engaged with the mechanism at both ends of its rotation stroke to limit the rotation angle of the locking element 500.

[0070] Specifically, the lock piece 500 comprises at least one lock piece stroke limiting part 530; at least one group of the support side plates 110 of the support 100 is provided with a stroke limiting hole 114; the lock piece stroke limiting part 530 is movably inserted into the stroke limiting hole 114, and at both ends of the rotating stroke of the lock piece 500, the lock piece stroke limiting part 530 is respectively limited by the sidewalls of the two ends of the stroke limiting hole 114. Further, the lock piece 530 is provided with two lock piece stroke limiting parts 530; two groups of the support side plates 110 of the support 100 are each provided with one stroke limiting hole 114; the two lock piece stroke limiting parts 530 are respectively movably inserted into the two stroke limiting holes 114.

[0071] As shown in Figure 1 , 3 , the support 100 comprises two groups of support side plates 110 arranged in opposite spaces, and a containing space is formed between the two groups of support side plates 110; the lock piece 500, the jump piece 600, the upper connecting rod 810, the second shaft 820, the first shaft 840, the main spring 850, and the lower connecting rod 860 are all arranged in the containing space, that is, between the two groups of support side plates 110.

[0072] Specifically, the lock piece 500 is arranged on the two groups of support side plates 110 by rotating the lock piece rotating shaft 550—specifically, the two ends of the lock piece rotating shaft 500 are arranged on the two groups of support side plates 110, respectively; the jump piece 600 is arranged on the two groups of support side plates 110 by rotating the jump piece rotating shaft 830—specifically, the two ends of the jump piece rotating shaft 830 are arranged on the two groups of support side plates 110, respectively; and the rocker arm 720 of the rocker arm component 700 is arranged on the two groups of support side plates 110. Further, the two groups of support side plates 110 are fixedly connected by a connecting shaft.

[0073] In the operating mechanism 1234 of the embodiment, the support 100 is an independently arranged structure—especially, the support 100 is independent of the shell structure of the switch apparatus. However, it should be noted that the support 100 can also be realized by the shell structure of the switch apparatus, which will not be described in detail here. In addition, in the operating mechanism 1234 of the embodiment, the support side plate 110 is a one-piece structure; however, the support side plate 110 can also be a structure formed by splicing multiple components.

[0074] As shown in Figure 1 , 3 -7, the rocker arm component 700 comprises a rocker arm 720 arranged on the support 100 and a handle 710 arranged on the rocker arm 720, and an external operating force drives the rocker arm 720 to rotate through the handle 710, thereby driving the operating mechanism 1234 to switch between the mechanism closing state and the mechanism opening state and between the mechanism tripping state and the mechanism reclosing state.

[0075] Specifically, as shown in Figure 1 , 3 , 11-13, the rocker arm 720 is rotatably arranged on the two groups of bracket side plates 110 in the following manner: the rocker arm 720 comprises a rocker arm leg 721 and a rocker arm beam 722, the two rocker arm legs 721 are oppositely arranged along the rotation axis of the rocker arm 720, one end of each of the two rocker arm legs 721 is connected to the rocker arm beam 722 by bending, and the rocker arm beam 722 is further used to connect to the handle 710 of the rocker arm component 700; the bracket side plate 110 comprises a rotation limiting structure 11123 which is in one-to-one cooperation with the rocker arm leg 721, the rotation limiting structure 11123 comprises a rocker arm shaft groove 111, a first rocker arm stop 112 and a second rocker arm stop 113, the first rocker arm stop 112 comprises a first stop groove, the second rocker arm stop 113 comprises a second stop groove, the first stop groove and the second stop groove are both U-shaped grooves, the openings of the U-shaped structures of the first stop groove and the second stop groove are oppositely arranged along the rotation axis of the rocker arm 720, i.e., they are oppositely arranged along the rotation axis of the rocker arm 720, the other end of the rocker arm leg 721 is rotatably arranged in the rocker arm shaft groove 111 by penetrating the corresponding first stop groove and the second stop groove, and the bottom walls of the U-shaped structures of the first stop groove and the second stop groove are respectively arranged on the two sides of the corresponding rocker arm leg 721 along the rotation axis of the rocker arm 720 to limit the movement of the rocker arm leg 721 along the rotation axis of the rocker arm 720. Further, the rocker arm 720 is in limiting cooperation with the bracket side plate 110 at both ends of the swing stroke of the rocker arm 720, thereby limiting the maximum swing angle of the rocker arm 720.

[0076] As another embodiment of the rocker arm 720 rotatably arranged on the two groups of bracket side plates 110, the two rocker arm legs 721 of the rocker arm 720 are respectively rotatably connected to the two groups of bracket side plates 110 by a rocker arm shaft. It should be pointed out that those skilled in the art can make other modifications by using conventional technical means in the art, which shall fall within the protection scope of the present utility model.

[0077] Specifically, as shown in Figures 5-7 , one end of the main spring 850 is connected to the rocker arm beam 722 of the rocker arm 720 and the other end is connected to the second shaft 820.

[0078] As shown in Figures 5-6 , the rocker arm component 700 has a rocker arm closing position, a rocker arm tripping position, a rocker arm opening position and a rocker arm reclosing position arranged in sequence along the rotation direction of the rocker arm component 700, and the rocker arm closing position, the rocker arm tripping position and the rocker arm opening position correspond to the mechanism closing state, the mechanism tripping state and the mechanism opening state of the operating mechanism 1234 of the present embodiment, respectively.

[0079] As shown in Figures 6-7As shown, the operating mechanism 1234 of the present embodiment is in the mechanism tripping state or the mechanism tripping state, and the jump buckle 600 is limited with the rocker member 700; the operating mechanism 1234 of the present embodiment is in the mechanism tripping state, and the operating external force drives the rocker member 700 to rotate to the rocker relocking position, the rocker member 700 drives the jump buckle 600 to reset and restore the snap buckle with the lock buckle 500, and after the operating external force is removed, the rocker member 700 is automatically rotated from the rocker relocking position to the rocker tripping position under the action of the main spring 850, and the operating mechanism 1234 is finally switched to the mechanism tripping state.

[0080] Specifically, the rocker 720 of the rocker member 700 further comprises a jump buckle reset driving part 724; the jump buckle 600 further comprises a jump buckle blocking part 660; when the operating mechanism 1234 of the present embodiment is in the mechanism tripping state and performs the relocking operation, the jump buckle reset driving part 724 presses the jump buckle blocking part 660 to make the jump buckle 600 rotate to the relocking position.

[0081] As shown in Figure 3 As shown, it is an implementation of the upper connecting rod 810: the upper connecting rod 810 comprises two upper connecting rod side plates 811 which are opposite in the direction d5 and located on both sides of the jump buckle 600, one end of the two upper connecting rod side plates 811 is connected with the jump buckle 600 through the first shaft 840, and the other end is connected with the lower connecting rod 860 through the second shaft 820, and the lower connecting rod 860 is located between the two upper connecting rod side plates 811.

[0082] As shown in Figure 1 、 3 As shown in -7, it is an embodiment of the tripping driving structure.

[0083] The trip transmission structure of the embodiment comprises a traction rod 200 arranged to rotate and a cooperating piece 300 arranged on the traction rod 200 to rotate synchronously with the traction rod 200 around the rotation axis of the traction rod 200; the operating mechanism 1234 is in a normal state (i.e. the switch device of the embodiment is in a normal state), i.e. the operating mechanism 1234 is in a mechanism closed state, a mechanism opened state, a normal closing operation process or a normal opening operation (non-trip opening process) process, the trip piece 600 and the lock piece 500 remain in a snap-fit and the lock piece 500 remains in a first limiting fit with the cooperating piece 300; the operating mechanism 1234 of the embodiment is in a mechanism closed state, the traction rod 200 is driven to rotate by a trip external force (e.g. the trip external force is a driving force from the short-circuit protection mechanism and the overload protection mechanism), the cooperating piece 300 is released from the first limiting fit with the lock piece 500, the trip piece 600 is rotated under the action of the main spring 850 and the trip piece 600 drives the lock piece 500 to rotate, the trip piece 600 is released from the snap-fit with the lock piece 500 and the lock piece 500 is established in a second limiting fit with the cooperating piece 300, and the lock piece 500 and the cooperating piece 300 remain in the second limiting fit; when the operating mechanism 1234 is in a mechanism tripped state, the operating external force drives the rocker member 700 to rotate, the trip piece 600 is rotated and reset under the drive of the rocker member 700, the lock piece 500 is rotated and reset, the traction rod 200 is rotated to drive the cooperating piece 300 to reset, finally the trip piece 600 and the lock piece 500 are restored to the snap-fit and the lock piece 500 is released from the second limiting fit with the cooperating piece 300 and established in the first limiting fit with the cooperating piece 300, the operating mechanism 1234 is switched to a mechanism reset state, and after the operating external force is removed, the operating mechanism 1234 is automatically switched to a mechanism opened state.

[0084] Specifically, the operating mechanism 1234 of the embodiment is in a mechanism closed state, the traction rod 200 is driven to rotate in the direction d2 by a trip external force, the cooperating piece 300 is released from the first limiting fit with the lock piece 500, the trip piece 600 is rotated in the direction d1 under the action of the main spring 850 and the trip piece 600 drives the lock piece 500 to rotate in the direction d1, the trip piece 600 is released from the snap-fit with the lock piece 500; when the operating mechanism 1234 performs a reset operation, the operating external force drives the rocker member 700 to rotate in the direction d2, the rocker member 700 drives the trip piece 600 to rotate in the direction d2, the lock piece 500 is rotated and reset in the direction d2, and the traction rod 200 is rotated in the direction d2 to drive the cooperating piece 300 to reset.

[0085] As Figure 1 , 3As shown in FIG. 7, in the operating mechanism 1234 of the present embodiment, the locking member 500 and the pulling rod 200 have a tendency to rotate in the same direction (specifically, direction d2) under the action of the reset structure 400; when the operating mechanism 1234 is in the tripping state and performs the reclosing operation, the locking member 500 and the pulling rod 200 rotate in direction d2 respectively under the action of the reset structure 400 and are reset.

[0086] Specifically, the reset structure 400 is a torsion spring, which is sleeved on a spring shaft (the spring shaft is realized by a locking rotating shaft 550 of the operating mechanism 1234, which is advantageous to simplify the structure of the operating mechanism 1234 of the present embodiment, and the locking rotating shaft 550 will be described in detail later), the spring shaft is fixedly arranged on the bracket 100, and a group of spring arms of the torsion spring cooperates with the locking member 500 and another group of spring arms cooperates with the pulling rod 200. Further, the reset structure 400 is a double torsion spring, which includes two single torsion springs 410 arranged symmetrically side by side along the rotating axis of the locking member 500 and a spring connecting rod 420, the two single torsion springs 410 are respectively a first single torsion spring and a second single torsion spring, each single torsion spring 410 includes a helical body 411 and a first spring arm 412 and a second spring arm 413 connected to the helical body 410 respectively, one end of the first spring arms 412 of the two single torsion springs are connected through the spring connecting rod 420, the second spring arms 413 include a spring arm connecting section 414 and a spring arm assembling section 415, one end of the spring arm connecting section is connected to the corresponding helical body 411 and the other end is connected to the spring arm assembling section 415 through bending; the two first spring arms 412 and the spring connecting rod 420 are used as a whole to cooperate with the pulling rod 200, and the spring arm assembling sections 415 of the two second spring arms 413 are used to cooperate with the two locking member mounting arms 520 of the locking member 500. Further, the extension direction of the spring arm assembling section 415 is arranged parallel to the rotating axis of the locking member 500.

[0087] As another embodiment of the tripping transmission structure, the tripping transmission structure includes a reclosing member rotatably arranged on the bracket 100 and having a rotating axis parallel to direction d5; in the normal state of the operating mechanism, the locking member 500 and the reclosing member have a first limiting cooperation; in the tripping state of the operating mechanism, the locking member 500 and the reclosing member have a second limiting cooperation; the reclosing member is driven to rotate by an external force, so that the reclosing member and the locking member 500 are out of the first limiting cooperation, and then the locking member 500 and the tripping member 600 are out of the buckling cooperation and the locking member 500 and the reclosing member establish the second limiting cooperation; the tripping transmission structure further includes the pulling rod 200, which is used to transmit a tripping force from the short-circuit protection mechanism, the overload protection mechanism or the tripping device to the reclosing member to drive it to rotate; the present embodiment can be realized by the prior art, and will not be described in detail here.

[0088] As shown in FIG. 7, Figure 1 ,3 An improved point of the switch electric appliance of the embodiment is shown in

[0089] The locking member 500 is rotatably arranged on the bracket 100 at one end and is provided with a locking member matching part 540 at the other end; the operating mechanism 1234 keeps the first limiting cooperation between the locking member matching part 540 and the matching part 300 in the normal state; the traction rod 200 is driven to rotate by the tripping external force, the first limiting cooperation between the matching part 300 and the locking member matching part 540 is released, the jump member 600 is driven to rotate by the main spring 850 and the jump member 600 drives the locking member 500 to rotate, the jump member 600 and the locking member 500 are released from the snap cooperation and the second limiting cooperation is established between the locking member matching part 540 and the matching part 300, the operating mechanism 1234 keeps the second limiting cooperation between the locking member matching part 540 and the matching part 300 in the tripping state. Further, the traction rod 200 is driven to rotate along the direction d1 by the tripping external force, the first limiting cooperation between the matching part 300 and the locking member matching part 540 is released, the jump member 600 is driven to rotate along the direction d1 by the main spring 850 and the jump member 600 drives the locking member 500 to rotate along the direction d1.

[0090] The operating mechanism 1234 of the embodiment cooperates the locking member 500 with the matching part 300, compared with the traditional operating mechanism, the relocking and other components are omitted, the structure of the operating mechanism 1234 is simplified and the reliability and stability of the operating mechanism 1234 are ensured, the material cost and labor cost are saved.

[0091] Specifically, as shown in Figures 5-6 , the operating mechanism 1234 keeps the matching part 300 on one side of the locking member matching part 540 along the direction d3 in the normal state; as shown in Figure 7 , the operating mechanism 1234 keeps the matching part 300 on one side of the locking member matching part 540 along the direction d4 in the mechanism tripping state; the direction d3 and the direction d4 are perpendicular to each other. Further, as shown in Figure 1 , 3 , 10, the matching part 300 is a cylindrical rod arranged parallel to the rotation axis of the traction rod 200, the rotation axis of the traction rod 200 is parallel to the direction d5; as shown in Figure 9As shown, the lock fitting part 540 comprises a fitting part first limit surface 541 and a fitting part second limit surface 542, the cylindrical rod is abutted against the fitting part first limit surface 541 on one side of the fitting part first limit surface 541 along the direction d3 to make the lock fitting part 540 establish the first limit cooperation with the fitting part 300, and the cylindrical rod is abutted against the fitting part second limit surface 542 on one side of the fitting part second limit surface 542 along the direction d4 to make the lock fitting part 540 establish the second limit cooperation with the fitting part 300. Further, the cylindrical rod is a cylindrical rod; the fitting part first limit surface 541 and the fitting part second limit surface 542 are both planes, and one end of the fitting part first limit surface 541 and the fitting part second limit surface 542 is preferably connected through an arc surface, so as to facilitate the movement of the cylindrical rod from the state of cooperation with the fitting part first limit surface 541 to the state of cooperation with the fitting part second limit surface 542. Further, the fitting part 300 and the traction rod 200 are an integral structure or a split structure.

[0092] As other embodiments of the fitting part 300, the fitting part 300 can also be a cylindrical protrusion extending along the direction d5; and / or, the cylindrical rod is a semi-cylindrical rod, a variable cylindrical rod, etc., as long as the first limit cooperation, the second limit cooperation and the conversion between the first limit cooperation and the second limit cooperation of the fitting part 300 and the lock fitting part 540 can be realized.

[0093] As shown in Figure 1 , 3 , 10, in the embodiment, the fitting part 300 and the traction rod 200 are a split structure.

[0094] Specifically, the traction rod 200 comprises a traction rod main body 210 and a fitting part mounting part 220, the traction rod 200 is rotationally arranged through the traction rod main body 210, the two fitting part mounting parts 220 are oppositely and spaced apart on the traction rod main body 210 along the rotation axis direction (the direction d5) of the traction rod 200, and the two ends of the cylindrical rod are respectively fixedly arranged on the two fitting part mounting parts 220. Further, the two fitting part mounting parts 220 are respectively provided with a fitting part assembly hole, and the two ends of the fitting part 300 are respectively inserted into the two fitting part assembly holes; the fitting part mounting part 220 is perpendicular to the rotation axis of the traction rod 200.

[0095] As shown in Figure 1 , 3 -7, 10 and 13, the traction rod 200 is rotationally arranged on the bracket 100.

[0096] Specifically, the towing rod 200 includes two sets of towing rod assembly holes 211 provided on the towing rod main body 210, and the two sets of towing rod assembly holes 211 are arranged at intervals along the axial direction of the towing rod main body 210; the support side plate 110 of the support 100 further includes a towing rod installation part 116, and the towing rod installation part 116 protrudes towards the side where the towing rod main body 210 is located; when the towing rod 200 is assembled with the support side plate 110, the towing rod installation part 116 is inserted into the corresponding towing rod assembly hole 211 and is rotationally connected to the towing rod main body 210. Further, the side wall of the towing rod assembly hole 211 is provided with a shaft hole, the towing rod installation part 116 is provided with a shaft hole, and the rotating shaft of the towing rod 200 respectively passes through the shaft hole of the towing rod installation part 116 and the shaft hole on the side wall of the towing rod assembly hole 211, so as to rotationally connect the towing rod 200 and the support side plate 110 together. Further, the two sets of towing rod assembly holes 211 are located on both sides of the two sets of fitting installation parts 220 of the towing rod 200 in the rotation axis direction of the towing rod main body 210. The towing rod 200 and the support 100 are rotationally connected in the above manner, which improves the compactness of the structural layout and reduces the installation space requirement.

[0097] As other embodiments in which the towing rod 200 is rotatably arranged on the support 100, the towing rod 200 is provided with a towing rod connecting arm, one end of the towing rod connecting arm is rotationally connected to the towing rod main body 210 and the other end is rotationally connected to the towing rod installation part 116; or, the support 100 does not provided with the towing rod installation part 116, but directly provided with a towing rod connecting hole, the towing rod connecting arm and the support side plate 110 of the support 100 are stacked along the rotation axis direction of the towing rod 200, and the towing rod connecting arm is rotationally connected to the support 100 through the towing rod connecting hole.

[0098] As Figures 1-2 shown, in the normal state of the operating mechanism 1234 of this embodiment, the towing rod 200 and the support 100 are in limit fit to prevent the towing rod 200 from further rotating under the action of the reset structure 400, so as to establish a reliable second limit fit between the fitting 300 and the locking part fitting portion 540 of the locking fastener 500.

[0099] Specifically, the traction rod 200 further comprises at least one set of traction rod limiting portions 230 arranged on the traction rod body 210; at least one set of support side plates 110 of the mechanism 100 comprises a support limiting portion 115; the operating mechanism 1234 of the embodiment is in a normal state, the traction rod limiting portion 230 is in abutting limiting cooperation with the support limiting portion 115, so as to prevent the traction rod 200 from further rotating under the action of the reset structure 400. Further, the traction rod 200 is provided with two sets of traction rod limiting portions 230, the two sets of traction rod limiting portions 230 are arranged in a spaced manner along the rotation axis of the traction rod 200; the two sets of support side plates 110 are each provided with a support limiting portion 115, and the two sets of support limiting portions 115 are in limiting cooperation with the two sets of traction rod limiting portions 230, respectively.

[0100] As shown in Figure 1 , 3 -7, 9, the lock catch 500 further comprises a lock catch main plate 510 and a lock catch mounting arm 520, the lock catch main plate 510 is used for snap cooperation with the jump catch 600, a pair of side edges of the lock catch main plate 510 are respectively connected with two sets of lock catch mounting arms 520 bent, the two sets of lock catch mounting arms 520 are arranged opposite to each other along the rotation axis of the lock catch 500, one end of the two sets of lock catch mounting arms 520 is respectively rotationally arranged on the support 100, and the other end of at least one lock catch mounting arm 520 serves as a lock catch cooperation portion 540.

[0101] Specifically, the two sets of lock catch mounting arms 520 are respectively rotationally arranged on the two sets of support side plates 110 of the support 100 through a lock catch rotation shaft 550. The lock catch main plate 510 comprises a main plate cooperation end 511, and the main plate cooperation end 511 is located between the two sets of lock catch mounting arms 520. One end of the two sets of lock catch mounting arms 520 is respectively rotationally arranged on the support 100, and the other end of the two sets of lock catch mounting arms 520 serves as the lock catch cooperation portion 540. The two sets of lock catch mounting arms 520 are in cooperation with the cooperation piece 300, which is conducive to improving the reliability and stability of cooperation. One end of the two lock catch stroke limiting portions 530 of the lock catch 500 is respectively connected with the two sets of lock catch mounting arms 520 bent. The lock catch mounting arm 520 is provided with a lock catch spring hole 522 in which the spring arm assembly segment 415 of the reset structure 400 is inserted. The lock catch mounting arm 520 is further provided with a lock catch shaft hole 521 through which the lock catch rotation shaft 550 passes.

[0102] As shown in Figures 4-9 Another improvement point of the switch apparatus of the embodiment is that:

[0103] The jump catch 600 and the lock catch 500 always maintain limiting cooperation, so as to facilitate the jump catch 600 and the lock catch 500 to restore snap cooperation.

[0104] Specifically, the jump catch 600 and the main plate cooperation end 511 of the lock catch 500 always abut.

[0105] Further, the trip member 600 comprises a trip member clasp surface 610 and a trip member mating surface 620; the operating mechanism 1234 is in the normal state, the trip member clasp surface 610 abuts against the main plate mating end 511 to realize the clasp cooperation between the trip member 600 and the lock member 500; the operating mechanism 1234 is in the tripping state, the trip member mating surface 620 abuts against the main plate mating end 511.

[0106] Further, the trip member clasp surface 610 is parallel to the rotation axis of the trip member 600.

[0107] Further, the trip member mating surface 620 is parallel to the rotation axis of the trip member 600. Further, the trip member mating surface 620 is a circular arc surface, the center of which coincides with the rotation center of the trip member 600.

[0108] Further, the trip member clasp surface 610 has a clasp surface far end which is away from the trip member mating surface 620, and a clasp surface near end which is connected with the trip member mating surface 620; from the clasp surface far end to the clasp surface near end, the distance between the trip member clasp surface 610 and the rotation axis of the trip member 600 gradually increases. Further, the trip member clasp surface 610 is a plane which is parallel to the rotation axis of the trip member 600.

[0109] As another embodiment of the trip member clasp surface 610, the trip member clasp surface 610 is a spiral surface, from the clasp surface far end to the clasp surface near end, the curvature gradually decreases.

[0110] The working process of the operating mechanism 1234 of the present embodiment will be described below:

[0111] As shown in Figures 4-6 , in the mechanism open state and the mechanism closed state, the cooperating member 300 is located on one side of the lock member mating portion 540 along the direction d3, and the cooperating member 300 and the lock member mating portion 540 are in the first limiting cooperation; the operating mechanism 1234 of the present embodiment is switched between the mechanism open state and the mechanism closed state through normal closing operation and opening operation, and the cooperating member 300 and the lock member mating portion 540 are in the first limiting cooperation. In combination with Figure 5 and 7As shown, in the closing state of the switch device, when a short circuit or overload fault occurs in the circuit in which the switch device is located, the traction rod 200 is driven by the tripping external force to rotate in the direction d2 (counterclockwise) to make the cooperating part 300 disengage from the first limiting cooperation of the locking part cooperation part 540, the main spring 850 drives the jump buckle part 600 to rotate in the direction d2 (counterclockwise), and the jump buckle part 600 simultaneously drives the locking part 500 to rotate in the direction d2 (counterclockwise) - that is, the jump buckle part 600 and the locking part 500 rotate in the same direction under the action of the main spring 850, so that the jump buckle part 600 and the locking part 500 disengage from the snap cooperation and the locking part cooperation part 540 and the cooperating part 300 establish and maintain the second limiting cooperation. The switch device of the embodiment is switched from the closing state of the device shown in Figure 5 to the tripping state of the device shown in Figure 7 . As shown in Figure 7 , in the tripping state of the operating mechanism 1234, the operating external force drives the rocker arm part 700 to rotate from the rocker arm tripping position to the rocker arm relocking position, the rocker arm part 700 simultaneously drives the jump buckle part 600 to rotate in the direction d1 (clockwise) to the relocking position to make the jump buckle snap surface 610 cooperate with the locking part 500, and the reset structure 400 simultaneously drives the locking part 500 and the traction rod 200 to rotate in the direction d1 (clockwise) to make the locking part cooperation part 540 and the cooperating part 300 disengage from the second limiting cooperation and the cooperating part 300 move to the side of the locking part cooperation part 540 in the direction d3. The operating mechanism 1234 is switched from the tripping state of the mechanism to the relocking state of the mechanism, and after the operating external force is removed, the operating mechanism 1234 is automatically switched from the relocking state of the mechanism to the opening state of the mechanism.

[0112] As shown in Figure 1 , 3 , it is a layout mode of the switch device of the embodiment:

[0113] In the operating mechanism 1234, the two groups of support side plates 110 of the support 100 are oppositely arranged along the direction d5, the jump buckle member 600, the lock buckle member 500, the upper connecting rod 810, the lower connecting rod 860, the first shaft 840, the second shaft 820 and the main spring 850 are arranged in the accommodating space of the support 100, the jump buckle member 600, the lock buckle member 500 and the tripping transmission structure are sequentially arranged along the direction d3 (specifically, the jump buckle member 600, the lock buckle member 500 and the traction rod 200 are sequentially arranged along the direction d3, and the matching member 300 is located between the jump buckle member 600 and the traction rod 200 along the direction d3), the rocker arm cross beam 722 of the rocker arm 720 and the second shaft 820 are respectively located on the two sides of the jump buckle member 600 along the direction d4, the first shaft 840 is located between the two ends of the main spring 850 and between the rocker arm cross beam 722 and the second shaft 820 along the direction d4, the second shaft 820, the lower connecting rod 860 and the movable contact assembly 910 are located on one side of the jump buckle member 600 along the direction d4, and the rotation axes of the jump buckle member 600, the lock buckle member 500, the rocker arm 720 and the traction rod 200 are all parallel to the direction d5; in the projection of the operating mechanism 1234 perpendicular to the direction d5, the rotation axis of the lock buckle member 500, the rotation axis of the traction rod 200 and the axis of the matching member 300 are respectively located at three vertices of a triangle, and the rotation axes of the first shaft 840, the jump buckle shaft 830 and the movable contact assembly 910 are located at three vertices of a triangle.

[0114] As shown in Figures 6-7 The third improvement of the switch device of the embodiment is that:

[0115] The operating mechanism 1234 in the mechanism opening state and the mechanism tripping state, the second shaft 820 is limited with the trip member 600 to prevent the upper connecting rod 810 rotating relative to the trip member 600 along the direction d2. The second shaft 820 drives the movable contact assembly 910 to rotate to the movable contact opening position when the operating mechanism 1234 is switched from the mechanism closing state to the mechanism opening state, so that the distance between the movable contact assembly 910 and the corresponding static contact 920 is L1. In other words, when the operating mechanism 1234 is normally opened, that is, when the operating external force drives the operating mechanism 1234 to switch from the mechanism closing state to the mechanism opening state through the rocker member 720, the second shaft 820 is used to drive the movable contact assembly 910 to rotate to the movable contact opening position, so that the distance between the movable contact assembly 910 and the static contact 920 is L2. The second shaft 820 drives the movable contact assembly 910 to rotate to the movable contact tripping position when the operating mechanism 1234 is switched from the mechanism closing state to the mechanism tripping state, so that the distance between the movable contact assembly 910 and the corresponding static contact 920 is L2, L2>L1. In other words, when the operating mechanism 1234 is tripped and opened, the tripping external force drives the traction rod 200 to rotate, so that the operating mechanism 1234 is switched from the mechanism closing state to the mechanism tripping state, and the second shaft 810 is used to drive the movable contact assembly 910 to rotate to the movable contact tripping position, so that the distance between the movable contact assembly 910 and the static contact 920 is L1, L2>L1. Further, L2≥1.5*L1.

[0116] In the existing switch electric appliance, the movable contact assembly is limited by the shell structure of the switch electric appliance to stop at the open position when the movable contact assembly is disconnected from the static contact. However, this structure makes the opening distance of the movable contact assembly and the static contact the same when the switch electric appliance is normally tripped and when the switch electric appliance breaks the fault current (short-circuit or overload current). If the opening distance is designed to be large, the operating life of the switch electric appliance is limited. If the opening distance is designed to be small, the breaking capacity of the switch electric appliance is limited. In the switch electric appliance of the embodiment, the second shaft 820 is limited by the trip catch 600 in the electric appliance tripped state and the electric appliance tripped state. The trip catch 600 basically remains unchanged in position when the switch electric appliance is normally tripped. When the switch electric appliance is tripped, the trip catch 600 rotates under the action of the main spring 650, thereby driving the second shaft 820 to move, so that the opening distance of the movable contact assembly 910 and the static contact 920 is different when the switch electric appliance is normally tripped and when the switch electric appliance is tripped. The opening distance of the movable contact assembly 910 and the static contact 920 in the electric appliance tripped state is smaller than the opening distance of the movable contact assembly 910 and the static contact 920 in the electric appliance tripped state, thereby improving the breaking capacity of the switch electric appliance for the fault current. In the switch electric appliance of the embodiment, only when the fault current is broken, the upper link 810 and the lower link 860 of the operating mechanism 1234 and the main spring 850 perform a larger action stroke, thereby reducing the damage to the structure of the operating mechanism 1234 and prolonging the service life of the operating mechanism 1234.

[0117] Specifically, the trip catch 600 further includes a trip catch limiting surface 630. In the mechanism tripped state and the mechanism tripped state, the second shaft 820 abuts against the trip catch limiting surface 630 to prevent the upper link 800 from rotating relative to the trip catch 600 in the direction d2. When the operating mechanism 1234 is normally tripped, that is, when the operating mechanism 1234 is switched from the closed state to the tripped state, the position of the trip catch 600 basically remains unchanged. The second shaft 820 abuts against the trip catch limiting surface 630 and the second shaft 820 is located at the second shaft tripped position. When the operating mechanism 1234 is tripped, that is, when the operating mechanism 1234 is switched from the closed state to the tripped state, the trip catch 600 is uncoupled from the lock catch 500. The trip catch 600 rotates under the action of the main spring 850, and the position of the trip catch 600 when the second shaft 820 abuts against the trip catch limiting surface 630 is the second shaft tripped position. The second shaft tripped position moves relative to the second shaft tripped position, thereby driving the movable contact assembly 910 to rotate by a larger angle. Further, the trip catch coupling surface 610, the trip catch coupling surface 620 and the trip catch limiting surface 630 of the trip catch 600 are sequentially arranged and connected in the rotation direction of the trip catch 600. The trip catch limiting surface 630 is also parallel to the direction d5.

[0118] As Figure 4 , 8As shown, one embodiment of the jump buckle 600 is shown:

[0119] The jump buckle 600 of the embodiment is a plate structure as a whole, one end of the opposite ends is a jump buckle pivot end and the end is rotatably arranged on the support 100 through a jump buckle rotating shaft 830, the other end is a jump buckle buckle end and the end is provided with a jump buckle buckle surface 610 and a jump buckle matching surface 620; the jump buckle blocking part 660 and the jump buckle limiting surface 630 are located between the jump buckle pivot end and the jump buckle buckle end, and the jump buckle blocking part 660 and the jump buckle limiting surface 630 are located on the opposite ends of the jump buckle 600 respectively. Further, the jump buckle 600 further comprises a jump buckle shaft hole 640 and a jump buckle connecting hole 650, the jump buckle shaft hole 640 is used for inserting the jump buckle rotating shaft 830 therein, and the jump buckle connecting hole 650 is used for inserting the first shaft 840 therein.

[0120] Further, the jump buckle 600 is in the shape of an axe as a whole, comprising a large plate part and a small plate part connected with each other, the jump buckle 600 is pivotally arranged through the small plate part, the small plate part is provided with the jump buckle shaft hole 640, the jump buckle buckle surface 610 and the jump buckle matching surface 620 are arranged at the edge of the axe-shaped structure of the jump buckle 600, the jump buckle limiting surface 630 is arranged at the side edge of the large plate part, one end of the jump buckle limiting surface 630 is connected with the jump buckle matching surface 620 and the other end is connected with the small plate part, the bending connection part of the jump buckle matching surface 620 and the jump buckle limiting surface 630 is located at one end of the edge of the axe-shaped structure of the jump buckle 600, and the jump buckle blocking part 660 is located at the other end of the edge of the axe-shaped structure of the jump buckle 600; the small plate part and the two ends of the edge of the axe-shaped structure of the jump buckle 600 are located at three vertices of a triangle.

[0121] It should be noted that in the description of the present application, the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings or the orientation or positional relationship commonly used in use, and are only for the convenience of description, and cannot be understood as indicating that the device or element referred to must have a specific orientation, therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only used for distinction, and cannot be understood as indicating relative importance.

[0122] The above is a further detailed description of the present application in combination with specific preferred embodiments, and the specific implementation of the present application cannot be limited to these descriptions. For ordinary skilled persons in the technical field to which the present application belongs, without departing from the concept of the present application, a number of simple deductions or substitutions can be made, which should be regarded as falling within the protection scope of the present application.

Claims

1. An operating system comprising an operating mechanism (1234) and a moving contact assembly (910); the operating mechanism (1234) comprises a support (100), a lock catch (500) and a rocker arm component (700) rotatably arranged on the support (100) respectively, a jump catch (600) rotatably arranged on the support (100) at one end and snap-fitted with the lock catch (500) at the other end, an upper connecting rod (810) rotatably connected with the middle part of the jump catch (600) at one end and provided with a second shaft (820) at the other end, and a main spring (850) connected to the rocker arm component (700) at one end and to the second shaft (820) at the other end; the second shaft (820) is used for driving connection with the moving contact assembly (910) of a switch electric appliance, and the main spring (850) provides energy for the opening and closing and tripping operations of the operating mechanism (1234); when the operating mechanism (1234) is switched from the mechanism closing state to the mechanism tripping state, the jump catch (600) is rotated from the jump catch snap-fitted position to the jump catch tripped position by rotating in the direction d2. characterized in that In the mechanism opening state and the mechanism tripping state of the operating mechanism (1234), the second shaft (820) is limitedly fitted with the jump catch (600) to prevent the upper connecting rod (810) from rotating relative to the jump catch (600) in the direction d2. When the operating mechanism (1234) is switched from the mechanism closing state to the mechanism opening state, the second shaft (820) drives the moving contact assembly (910) to rotate to the moving contact opening position, so that the opening distance between the moving contact assembly (910) and the corresponding static contact (920) is L1. When the operating mechanism (1234) is switched from the mechanism closing state to the mechanism tripping state, the second shaft (820) drives the moving contact assembly (910) to rotate to the moving contact tripping position, so that the opening distance between the moving contact assembly (910) and the corresponding static contact (920) is L2, and L2>L1.

2. The operating system of claim 1, wherein: The jump catch (600) comprises a jump catch limiting surface (630), and in the mechanism opening state and the mechanism tripping state of the operating mechanism (1234), the second shaft (820) abuts against the jump catch limiting surface (630) to prevent the upper connecting rod (810) from rotating relative to the jump catch (600) in the direction d2.

3. The operating system of claim 1, wherein: When the operating mechanism (1234) is reclosed, an external force drives the jump catch (600) to rotate in the direction d1 to reset to the jump catch snap-fitted position through the rocker arm component (700), and the lock catch (500) is also reset, so that the jump catch (600) and the lock catch (500) are restored and maintained in snap-fitted cooperation.

4. The operating system of claim 1, wherein: The jump catch (600) and the lock catch (500) are always limitedly fitted.

5. The operating system of claim 4, wherein: The lock catch (500) comprises a lock catch main plate (510), and one end of the lock catch main plate (510) is a main plate cooperation end (511), and the jump catch (600) always abuts against the main plate cooperation end (511).

6. The operating system of claim 5, wherein: The trip member (600) further comprises a trip member buckle surface (610) and a trip member matching surface (620) connected by bending; the trip member buckle surface (610) is abutted against the main plate matching end (511) in the normal state of the operating mechanism (1234); the trip member matching surface (620) is abutted against the main plate matching end (511) in the tripping state of the operating mechanism (1234).

7. The operating system of claim 6, wherein: The trip member matching surface (620) is a circular arc surface, and the center of the circular arc surface coincides with the rotation center of the trip member (600); and / or, one end of the trip member buckle surface (610) away from the trip member matching surface (620) and one end of the trip member buckle surface (610) connected with the trip member matching surface (620) are respectively a buckle surface far end and a buckle surface near end; the trip member buckle surface (610) gradually increases in distance from the rotation axis of the trip member (600) from the buckle surface far end to the buckle surface near end.

8. The operating system of claim 6, wherein: The trip member limiting surface (630), the trip member matching surface (620) and the trip member buckle surface (610) of the trip member (600) are sequentially arranged and connected along the rotation direction of the trip member (600).

9. The operating system of claim 1, wherein: The operating mechanism (1234) further comprises a lower connecting rod (860), one end of the lower connecting rod (860) is hingedly connected with the upper connecting rod (810) through a second shaft (820), and the other end of the lower connecting rod (860) is drivingly connected with the movable contact assembly (910); one end of the upper connecting rod (810) is hingedly connected with the middle part of the trip member (600) through a first shaft (840); the rotation axes of the trip member (600), the locking member (500), the rocker member (700) and the movable contact assembly (910) are all parallel to the direction d5; The first shaft (840) is located between the two ends of the main spring (850) in the direction d4; the second shaft (820), the lower connecting rod (860) and the movable contact assembly (910) are located on one side of the trip member (600) in the direction d4; the trip member (600), the locking member (500) and the tripping driving structure are sequentially arranged along the direction d3, and the direction d3, the direction d4 and the direction d5 are perpendicular to each other; the movable contact assembly (910) is arranged to rotate along the direction d2 to be closed with the corresponding stationary contact (920) and rotate along the direction d1 to be disconnected with the corresponding stationary contact (920), and the direction d1 and the direction d2 are opposite directions.

10. The operating system of claim 9, wherein: The operating mechanism (1234) further comprises a rotationally arranged tripping transmission structure and a reset structure (400), the reset structure (400) acting on the lock catch (500) and the tripping transmission structure respectively to make the lock catch (500) and the tripping transmission structure have a tendency to rotate in the same direction; in a normal state, the operating mechanism (1234) establishes a first limiting cooperation between the tripping transmission structure and the lock catch (500) to make the lock catch (500) and the jump catch (600) keep the snap cooperation; when the operating mechanism (1234) is tripped, the re-catch structure is driven to rotate by an external force to make the tripping transmission structure and the lock catch (500) release the first limiting cooperation, and then the jump catch (600) and the lock catch (500) release the snap cooperation and make the lock catch (500) and the tripping transmission structure establish a second limiting cooperation.

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