An operating device and circuit breaker

Abstract

This invention provides an operating device and a circuit breaker, relating to the field of electrical equipment technology. The operating device includes a mounting housing, a mounting base, a moving contact, a stationary contact, a moving contact reset component, and a trip button. The mounting base, moving contact, stationary contact, moving contact reset component, and trip button are all mounted within the mounting housing. Both the mounting base and the moving contact are rotatably mounted on the mounting housing; the stationary contact is mounted on the mounting housing; the moving contact reset component is mounted on the mounting housing and connected to the moving contact, and is used to give the moving contact a tendency to move away from the stationary contact; the trip button is movably mounted on the mounting base. Therefore, after the moving contact is released from the trip button's restraint, the moving contact rotates independently under the action of the moving contact reset component, separating from the stationary contact. This results in a small moment of inertia and a fast tripping speed, thereby achieving rapid separation of the moving and stationary contacts and improving the safety performance of the operating device.

Description

Technical Field

[0001] This invention relates to the field of electrical equipment technology, and more specifically, to an operating device and a circuit breaker. Background Technology

[0002] To ensure electrical safety, electrical equipment is typically equipped with circuit breakers to promptly disconnect the circuit in case of a fault. Current circuit breakers usually operate by tripping; however, existing circuit breakers have complex structures, using a mounting base to separate the moving contact from the stationary contact. This results in a large weight and moment of inertia on the moving contact, thus requiring significant force to open the circuit and making it difficult to separate the moving and stationary contacts. Summary of the Invention

[0003] This invention provides an operating device and a circuit breaker that, after the moving contact is released from the tripping restriction, allows the moving contact to rotate independently and separate from the stationary contact under the drive of the moving contact reset component. This results in a small moment of rotational inertia and a fast tripping speed, thereby achieving rapid disconnection between the moving and stationary contacts and improving the safety performance of the operating device.

[0004] The embodiments of the present invention can be implemented as follows:

[0005] In a first aspect, the present invention provides an operating device, comprising:

[0006] Mounting housing;

[0007] Mounting base, which is rotatably disposed on the mounting housing;

[0008] A moving contact, which is rotatably disposed on the mounting housing;

[0009] Static contact head;

[0010] A moving contact reset member, the moving contact reset member being used to cause the moving contact to tend to move away from the stationary contact;

[0011] A trip latch is movably disposed on the mounting base. The trip latch is used to abut against the moving contact, so that the mounting base can drive the trip latch to rotate under the drive of the handle, thereby causing the moving contact to close or open with the stationary contact. The trip latch can also disengage from the moving contact, so that when the moving contact and the stationary contact are closed, the moving contact can disengage from the mounting base and separate from the stationary contact under the drive of the moving contact reset member.

[0012] In an optional embodiment, the operating device further includes a handle and a connecting rod. The mounting housing is provided with a main shaft. The mounting base and the moving contact are rotatably mounted on the main shaft. The handle, the connecting rod, and the mounting base are sequentially connected and together form a four-bar linkage mechanism. The four-bar linkage mechanism is not damaged when the operating device trips and opens.

[0013] In an optional embodiment, one end of the jumper is movably disposed on the mounting base, and the other end is used to abut or disengage from the moving contact, wherein the direction of movement of the jumper is perpendicular to the plane of rotation of the moving contact.

[0014] In an optional embodiment, the operating device further includes an elastic element, the mounting base is provided with a snap-fit ​​groove and an elastic element groove, at least a portion of the snap-fit ​​is embedded in the snap-fit ​​groove, and at least another portion is located on one side of the elastic element groove; the elastic element is disposed in the elastic element groove and abuts against the snap-fit ​​to restrict the snap-fit ​​from moving in a direction away from the snap-fit ​​groove, and to make the snap-fit ​​abut against the moving contact.

[0015] In an optional embodiment, the mounting shell is provided with a third mating part, the mounting base is provided with a fourth mating part, and the moving contact reset member is a torsion spring structure, with one end abutting against the third mating part and the other end abutting against the fourth mating part.

[0016] In an optional embodiment, the side wall of the moving contact is recessed with a first abutting portion, and the end of the snap fastener is protruded with a second abutting portion, the second abutting portion engaging with the first abutting portion.

[0017] In an optional embodiment, the operating device further includes a tripping mechanism, which includes a latch and a driving member. The driving member is disposed on the mounting housing, and the latch is rotatably disposed on the main shaft. The latch abuts against the jumper to limit the jumper so that the jumper and the moving contact remain in abutment state; or the latch is used to rotate in a first direction under the drive of the driving member so that the latch disengages from the jumper.

[0018] In an optional embodiment, the tripping mechanism further includes a latch reset member disposed on the mounting base and connected to the latch. The latch reset member is used to give the latch a tendency to rotate in a second direction so that the latch abuts against the tripping latch, wherein the first direction and the second direction are opposite directions.

[0019] In an optional embodiment, the locking reset member is a torsion spring structure, the mounting base is provided with a first mating part, the locking buckle is provided with a second mating part, the locking reset member is installed on the mounting shaft of the mounting base, and one end abuts against the first mating part, and the other end abuts against the second mating part.

[0020] In an optional embodiment, the moving contact is provided with a clearance hole, the main shaft passes through the clearance hole, the moving contact can rotate relative to the main shaft, and the moving contact can be displaced in the plane of rotation.

[0021] In an optional embodiment, the clearance hole has a first end and a second end;

[0022] During the process of the handle driving the moving contact to close and being in overtravel, the moving contact moves along the extension direction of the relief hole, and the main shaft moves from the first end to the second end relative to the relief hole.

[0023] In an optional embodiment, the mounting housing is further provided with a limiting shaft, which is used to abut against the moving contact under the action of the moving contact reset member.

[0024] In a second aspect, the present invention provides a circuit breaker including an operating device as described in any of the foregoing embodiments.

[0025] The beneficial effects of the operating device and circuit breaker provided in this invention include: When the operating device is in normal operation, the trip latch is mounted on the mounting base and abuts against the moving contact. The mounting base, driven by the handle, can rotate the trip latch, which in turn rotates the moving contact, achieving closing or opening of the circuit between the moving and stationary contacts. When the moving and stationary contacts are closed, and in the event of a fault in the operating mechanism or circuit, the trip latch, being movably mounted on the mounting base, can rotate relative to the mounting base to disengage from the moving contact. This removes the restriction of the trip latch and the mounting base on the moving contact. At this time, the moving contact can be reset to the open state with the stationary contact under the action of the moving contact reset component. Therefore, after the moving contact is released from the trip latch's restriction, it rotates independently under the action of the moving contact reset component, separating from the stationary contact. This results in a small moment of inertia and a fast tripping speed, thereby achieving rapid separation of the moving and stationary contacts and improving the safety performance of the operating device. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the operating device structure provided in an embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the operating device structure provided in an embodiment of the present invention;

[0029] Figure 3 This is a schematic diagram of the operating device in the closed state provided in an embodiment of the present invention;

[0030] Figure 4 This is a schematic diagram of the operating device in the open state provided in an embodiment of the present invention;

[0031] Figure 5 This is a first-view structural diagram of the operating device in the disengaged state provided in an embodiment of the present invention;

[0032] Figure 6 This is a second-view structural diagram of the operating device in the disengaged state provided in an embodiment of the present invention;

[0033] Figure 7 This is a schematic diagram of the operating device in an overtravel state provided in an embodiment of the present invention;

[0034] Figure 8 A schematic diagram of the operating device in the overtravel end state provided in an embodiment of the present invention;

[0035] Figure 9 This is a first-view structural diagram of the installation component provided in an embodiment of the present invention;

[0036] Figure 10 This is a schematic diagram of the second-view structure of the installation component provided in an embodiment of the present invention;

[0037] Figure 11 A cross-sectional view of the installation components provided in an embodiment of the present invention;

[0038] Figure 12 This is a first-view structural diagram of the mounting base provided in an embodiment of the present invention;

[0039] Figure 13 This is a schematic diagram of the second-view structure of the mounting base provided in an embodiment of the present invention;

[0040] Figure 14 This is a schematic diagram of the snap fastener structure provided in an embodiment of the present invention;

[0041] Figure 15 This is a schematic diagram of the elastic element structure provided in an embodiment of the present invention;

[0042] Figure 16 This is a schematic diagram of the elastic element from a second perspective, provided in an embodiment of the present invention.

[0043] Icons: 10-Operating device; 100-Mounting housing; 110-Main shaft; 120-Third mating part; 130-Limiting shaft; 200-Mounting assembly; 210-Mounting base; 211-Fourth mating part; 212-First mating part; 213-Snap-on groove; 214-Elastic element groove; 215-Anti-detachment groove; 216-Allowing groove; 217-Second rotating part; 218-Allowing channel; 220-Snap-on; 221-Second supporting part; 222-Abutting part; 2221-First abutting surface; 2222-Second abutting surface; 223-First rotating part; 230-Elastic element; 231 - Connecting part; 232- First fixing part; 2321- First fixing section; 233- Second fixing part; 2331- Second fixing section; 234- Functional part; 235- Anti-disengagement part; 300- Contact assembly; 310- Moving contact; 311- First supporting part; 312- Displacement hole; 3121- First end; 3122- Second end; 320- Stationary contact; 330- Moving contact reset part; 400- Drive assembly; 410- Handle; 420- Linkage rod; 500- Tripping mechanism; 510- Lock; 511- Second mating part; 520- Drive part; 530- Lock reset part. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0045] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0046] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0047] In the description of this invention, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed, they are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0048] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0049] It should be noted that, where there is no conflict, the features in the embodiments of the present invention can be combined with each other.

[0050] Based on the problems existing in the current technology, please refer to Figures 1 to 15 This invention provides an operating device 10, applicable to the field of electrical equipment technology, and particularly suitable for circuit breakers. The operating device 10 provided in this embodiment has a relatively simple structure, not only with low rotational inertia but also capable of rapid tripping, thereby enabling the moving contact 310 and the stationary contact 320 to open in a timely manner, improving safety performance.

[0051] In detail, the operating device 10 includes a mounting housing 100, a mounting assembly 200, a contact assembly 300, a drive assembly 400, and a tripping mechanism 500.

[0052] The mounting assembly 200 includes a mounting base 210, a trip latch 220, and an elastic element 230; the contact assembly 300 includes a moving contact 310, a stationary contact 320, and a moving contact reset element 330; the drive assembly 400 includes a handle 410 and a connecting rod 420; and the tripping mechanism 500 includes a latch 510 and a drive element 520.

[0053] Mounting base 210, moving contact 310, stationary contact 320, moving contact reset member 330, and jumper 220 are all installed inside mounting housing 100. Mounting base 210 and moving contact 310 are rotatably mounted in mounting housing 100; stationary contact 320 is mounted in mounting housing 100; moving contact reset member 330 is mounted in mounting housing 100 and connected to moving contact 310, and moving contact reset member 330 is used to make moving contact 310 tend to move away from stationary contact 320; jumper 220 is movably mounted in mounting base 210.

[0054] The trip latch 220 abuts against the moving contact 310 so that the mounting base 210 can rotate the trip latch 220 under the drive of the handle 410, thereby causing the moving contact 310 to close or open with the stationary contact 320; or, the trip latch 220 is used to disengage from the moving contact 310 so that when the moving contact 310 and the stationary contact 320 are closed, the moving contact 310 is disengaged from the mounting base 210 and separated from the stationary contact 320 under the drive of the moving contact reset member 330.

[0055] In this embodiment, the moving contact 310 is rotatably disposed on the mounting housing 100. Therefore, the moving contact 310 can rotate to contact the stationary contact 320, that is, the moving contact 310 and the stationary contact 320 are in a closed state (e.g., Figure 3 (as shown); Of course, the moving contact 310 can also be rotated to separate from the stationary contact 320, that is, the moving contact 310 and the stationary contact 320 are in the open state (as shown). Figure 4 (As shown).

[0056] When the operating device 10 is in normal operation, the trip latch 220 is set on the mounting base 210 and abuts against the moving contact 310, so that the mounting base 210 can drive the trip latch 220 to rotate under the drive of the handle 410, and finally the trip latch 220 drives the moving contact 310 to rotate, so as to realize the closing or opening of the moving contact 310 and the stationary contact 320.

[0057] When the moving contact 310 and the stationary contact 320 are closed, and the operating mechanism or circuit is in a faulty state, since the trip latch 220 is movably mounted on the mounting base 210, it can rotate relative to the mounting base 210 to disengage from the moving contact 310, so that the moving contact 310 is no longer restricted by the trip latch 220 and the mounting base 210. At this time, the moving contact 310 can be reset to the open state with the stationary contact 320 under the action of the moving contact reset member 330.

[0058] Therefore, through the above design, after the moving contact 310 is released from the restriction of the trip 220, the moving contact 310 is driven by the moving contact reset member 330 to detach from the mounting base and rotate independently and separate from the stationary contact 320. The moment of inertia is small and the tripping speed is fast, thereby realizing the rapid separation of the moving contact 310 and the stationary contact 320 and improving the safety performance of the operating device 10.

[0059] Furthermore, such as Figure 2 As shown, the side wall of the moving contact 310 is recessed with a first abutting part 311, and the end of the snap fastener 220 is protruding with a second abutting part 221. The second abutting part 221 engages with the first abutting part 311.

[0060] In this embodiment, the first abutment 311 and the second abutment 221 engage with each other, so that the snap fastener 220 can be securely abutted against the moving contact 310.

[0061] Furthermore, the mounting housing 100 is provided with a main shaft 110, and the mounting base 210 and the moving contact 310 are rotatably mounted on the main shaft 110. The handle 410, the connecting rod 420, and the mounting base 210 are sequentially connected and together form a four-bar linkage mechanism, i.e. Figure 3 and Figure 4 The dashed line shows the four-bar 420 structure.

[0062] Since the existing circuit breaker's four-bar linkage 420 structure consists of a handle, a connecting rod 420, a mounting base 210, and a trip latch 220, the stability of the four-bar linkage 420 structure is affected when the trip latch 220 trips. Therefore, in this embodiment, by movably setting one end of the trip latch 220 to the mounting base 210 and using the other end to abut or disengage from the moving contact 310, after a fault occurs and the trip latch 220 separates from the moving contact 310, the trip latch 220 rotates with the mounting base 210 without damaging the four-bar linkage 420 structure formed by the handle 410, the connecting rod 420, and the mounting base 210. Thus, while ensuring that the trip latch 220 can trip quickly, the structural stability of the transmission four-bar linkage mechanism formed by the handle 410, the connecting rod 420, and the mounting base 210 in sequence is also effectively guaranteed.

[0063] In detail, the direction of movement of the jumper 220 is set at an angle to the plane of rotation of the moving contact 310.

[0064] In this embodiment, the jump buckle 220 moves along a plane of rotation perpendicular to the moving contact 310. Therefore, the movement path of the jump buckle 220 does not interfere with the movement path of the four-bar linkage formed by the handle 410, the connecting rod 420, and the mounting base 210. This ensures that the jump buckle 220 will not damage the four-bar linkage 420 structure formed by the handle 410, the connecting rod 420, and the mounting base 210 after it is released.

[0065] In detail, the mounting housing 100 is provided with a third mating part 120, the mounting base 210 is provided with a fourth mating part 211, and the moving contact reset member 330 is a torsion spring structure, with one end abutting against the third mating part 120 and the other end abutting against the fourth mating part 211.

[0066] In this embodiment, the moving contact reset member 330 is disposed on the main shaft 110, and one end of the moving contact reset member 330 abuts against the third mating part 120, and the other end abuts against the fourth mating part 211. In this state, the moving contact reset member 330 is in a compressed state, so that after the moving contact 310 is released from the abutment restriction of the trip latch 220, it can rotate in the direction away from the stationary contact 320 by the elastic restoring force of the moving contact reset member 330, that is, return to the open state.

[0067] Furthermore, the mounting housing 100 is also provided with a limiting shaft 130, which is used to abut against the moving contact 310 under the action of the moving contact reset member 330.

[0068] In this embodiment, since the moving contact 310 only needs to be separated from the stationary contact 320 by a certain distance to achieve the opening, after the moving contact reset member 330 drives the moving contact 310 to rotate away from the stationary contact 320, the movement of the moving contact 310 is restricted by the limit shaft 130, thereby achieving the opening limit.

[0069] Furthermore, the drive member 520 is disposed on the mounting housing 100, and the latch 510 is rotatably disposed on the main shaft 110. The latch 510 abuts against the jumper 220 to limit the jumper 220 so that the jumper 220 and the moving contact 310 are kept in abutment; or the latch 510 is used to rotate in a first direction (clockwise direction in the figure) under the drive of the drive member 520 so that the latch 510 disengages from the jumper 220.

[0070] In this embodiment, when the operating mechanism is running normally, the latch 510 abuts against the trip latch 220, causing the trip latch 220 to abut against the moving contact 310. This allows the trip latch 220 to rotate when the mounting base 210 rotates, and the moving contact 310 to rotate via the trip latch 220, thereby enabling the moving contact 310 to normally close or open with the stationary contact 320.

[0071] In the event of a malfunction, the tripping mechanism 500 is activated, that is, the pin at the output end of the drive member 520 extends to abut against the arc-shaped structure of the latch 510, causing the latch 510 to rotate around the main shaft 110 in the first direction under the holding action of the drive member 520, so that the tripping mechanism disengages from the tripping latch 220. After the tripping latch 220 is released from the abutment restriction of the latch 510, the moving contact reset member 330 drives the moving contact 310 to rotate in the first direction, and causes the moving contact 310 to push the tripping latch 220 to rotate relative to its rotation plane until the tripping latch 220 disengages from the moving contact 310. Finally, the moving contact 310 is opened from the stationary contact 320 and abuts against the limit shaft 130 under the drive of the moving contact reset member 330.

[0072] Furthermore, the tripping mechanism 500 also includes a latch reset member 530, which is disposed on the mounting base 210 and connected to the latch 510. The latch reset member 530 is used to give the latch 510 a tendency to rotate in a second direction (counterclockwise direction in the figure) so that the latch 510 abuts against the trip latch 220.

[0073] In this embodiment, the first direction and the second direction are opposite, that is, the first direction is clockwise as shown in the figure, and the second direction is counterclockwise as shown in the figure.

[0074] It should be noted that after the trip latch 220 is disengaged from the latch 510 under the drive of the drive member 520, and the moving contact 310 is opened from the stationary contact 320 and abuts against the limit shaft 130 under the drive of the moving contact reset member 330, the handle 410 is returned to its original position by the reset spring. At the same time, the mounting base 210 is reset to the state when the circuit is open under the drive of the handle 410 and the connecting rod 420, and the latch 510 abuts against the moving contact 310 again. At this time, since the latch reset member 530 always exerts a force on the latch 510 to rotate in the second direction, under the action of the latch reset member 530, the latch 510 is also reset to the state of abutting against the trip latch 220, so that the mounting base 210 and the latch 510 are in a relatively stable installation state.

[0075] In detail, the locking reset member 530 is a torsion spring structure. The mounting base 210 is provided with a first mating part 212, the locking buckle 510 is provided with a second mating part 511, and the locking reset member 530 is installed on the mounting shaft of the mounting base 210, with one end abutting against the first mating part 212 and the other end abutting against the second mating part 511.

[0076] In this embodiment, the latch reset member 530 is disposed on the mounting shaft of the mounting base 210, with one end of the latch reset member 530 abutting against the first mating part 212 and the other end abutting against the second mating part 511. In this state, the latch reset member 530 is in a compressed state, so that after the latch 510 disengages from the holding action of the driving member 520, it can rotate in the second direction through the elastic restoring force generated by the latch reset member 530, thereby causing the latch 510 to abut against the jumper 220, and finally causing the jumper 220 to abut against the moving contact 310.

[0077] Furthermore, the moving contact 310 is provided with a clearance hole 312, through which the main shaft 110 passes. The moving contact 310 can rotate relative to the main shaft 110, and the moving contact 310 can be displaced in the rotation plane.

[0078] In detail, the clearance hole 312 has a first end 3121 and a second end 3122;

[0079] Before closing begins, the handle 410 rotates the mounting base 210, which in turn rotates the trip latch 220 and the moving contact 310 until the moving contact 310 contacts the stationary contact 320; Figure 7As shown, after the moving contact 310 and the stationary contact 320 just come into contact, that is, during the process when the handle 410 drives the moving contact 310 to close and is in an overtravel state, the handle 410 drives the mounting base 210 to rotate, and the mounting base 210 drives the trip latch 220 to move. Finally, the trip latch 220 drives the moving contact 310 to move along the extension direction of the relief hole 312, so that the main shaft 110 moves relative to the relief hole 312 from the first end 3121 to the second end 3122, as shown. Figure 8 As shown, at this time, the moving contact 310 and the stationary contact 320 are in the closed state and in the overtravel end state. Thus, the overtravel is completed through the clearance hole 312, reducing the movement space of the moving contact 310 and thus saving space.

[0080] It is understandable that when the handle 410 drives the moving contact 310 to open and is in an overtravel state, the moving contact 310 moves along the extension direction of the relief hole 312 so that the main shaft 110 moves from the second end 3122 to the first end 3121 relative to the relief hole 312.

[0081] Furthermore, such as Figures 9 to 14 As shown, the mounting base 210 has a snap-lock groove 213 and an elastic element groove 214 on its opposite side walls. At least a portion of the snap-lock 220 is embedded in the snap-lock groove 213, and at least another portion is located on one side of the elastic element groove 214. The elastic element 230 is disposed in the elastic element groove 214 and abuts against the snap-lock 220 to restrict the snap-lock 220 from moving away from the snap-lock groove 213 and to make the snap-lock 220 abut against the moving contact 310.

[0082] First, it should be noted that when the elastic element 230 is in a compressed state, the force exerted by the elastic element 230 on the jumper 220 is less than the force exerted by the moving contact reset element 330 on the moving contact 310. Therefore, when the jumper 220 disengages from the moving contact 310, the moving contact 310 can push the jumper 220 under the action of the moving contact reset element 330, causing the elastic element 230 to be further compressed under the action of the jumper 220 until the jumper 220 is completely disengaged from the moving contact 310.

[0083] In this embodiment, by providing a snap-lock groove 213 and an elastic element groove 214 on the two side walls of the mounting base 210, and by embedding at least a portion of the snap-lock 220 into the snap-lock groove 213 and at least another portion of the snap-lock 220 on one side of the elastic element groove 214, when the elastic element 230 is disposed in the elastic element groove 214 and abuts against the snap-lock 220, not only can the snap-lock 220 be firmly installed in the snap-lock groove 213 of the mounting base 210, realizing the snap-lock 220 and the mounting base 210 self-locking, but it also plays the role of pressing the snap-lock 220 so that the snap-lock 220 can stably abut against the moving contact 310.

[0084] It is evident that the above structure is simple, easy to assemble, and effectively improves production efficiency.

[0085] Furthermore, such as Figure 15 and Figure 16 As shown, the elastic member 230 includes a connecting part 231, a first fixing part 232, a second fixing part 233, and a functional part 234. The first fixing part 232 and the second fixing part 233 are both connected to the connecting part 231 and are arranged at an angle. The first fixing part 232 and the second fixing part 233 respectively abut against the two side walls of the elastic member groove 214 so that the elastic member 230 is in a compressed state.

[0086] The connecting part 231 has a curved arc structure. The first fixing part 232, the connecting part 231 and the second fixing part 233 are connected in sequence and together form a V-shaped structure. The functional part 234 is connected to the connecting part 231 and extends along the outer arc surface away from the connecting part 231.

[0087] In this embodiment, the elastic element 230 is installed in the elastic element groove 214 of the mounting base 210. The first fixing part 232, the connecting part 231, and the second fixing part 233 form a V-shaped structure, which not only makes the space occupied by the elastic element 230 small, but also gives it a certain elastic deformation capability. The outer arc surface of the connecting part 231 is used to abut against the bottom wall of the elastic element groove 214 of the mounting base 210. The first fixing part 232 and the second fixing part 233 are respectively used to abut against the side walls of the elastic element groove 214 of the mounting base 210, thereby playing a fixing role. By extending the functional part 234 in the direction away from the outer arc surface of the connecting part 231, the functional part 234 is used to abut against the jump buckle 220, so that the elastic force is applied to the jump buckle 220 through the functional part 234, thereby making the jump buckle 220 abut against the moving contact 310.

[0088] It can be seen that the elastic element 230 provided by the present invention has a simple structure, a reasonable shape design, a small size and a small space occupation; the elastic force applied to the external buckle 220 by the functional part 234 is appropriate to reduce the movement stroke between the parts and thus reduce wear.

[0089] In this embodiment, the connecting part 231 is curved, and both ends of the connecting part 231 are connected to two fixing parts respectively, so that when the elastic member 230 is installed in the elastic member groove 214, the first fixing part 232 and the second fixing part 233 respectively abut against the two side walls of the elastic member groove 214, so that the elastic member 230 is in a compressed state. Therefore, under the action of the elastic restoring force of the elastic member 230, the elastic member 230 is stably installed in the elastic member groove 214.

[0090] In detail, when the elastic member 230 is in a balanced state, the distance between the first fixing part 232 and the second fixing part 233 is slightly greater than the distance between the two side walls of the elastic member groove 214, so that the elastic member 230 is compressed when installed in the elastic member groove 214.

[0091] In detail, the anti-detachment part 235 is integrally formed with the first fixing part 232, and the anti-detachment part 235 is formed by bending the planar area where the first fixing part 232 is located.

[0092] It should also be noted that the length of the functional part 234 is greater than the length of the first fixing part 232 and the second fixing part 233.

[0093] In this embodiment, the anti-detachment part 235 and the first fixing part 232 are manufactured by an integral molding process, which is simple and efficient and effectively improves the processing efficiency. Furthermore, the anti-detachment part 235 can be processed by cutting, bending and other processes from the structure located in the middle of the first fixing part 232. The resulting elastic member 230 has a simple structure and is easy to process.

[0094] Specifically, the end of the first fixing part 232 is provided with two spaced first fixing segments 2321, and the anti-detachment part 235 is located in the middle region between the two first fixing segments 2321.

[0095] In this embodiment, the two first fixing segments 2321 are symmetrically arranged, and the anti-detachment part 235 is located in the middle area between the two first fixing segments 2321, which can make the elastic member 230 subjected to balanced force. Therefore, when the elastic member 230 is installed into the elastic member groove 214, the installation stability can be improved.

[0096] In detail, the two first fixed sections 2321 abut against the top wall of the elastic groove 214.

[0097] Furthermore, the functional part 234 and the connecting part 231 are integrally formed, and the functional part 234 is formed by bending the planar area where the second fixing part 233 is located.

[0098] In this embodiment, the functional part 234 and the connecting part 231 are manufactured by an integral molding process, which is simple and efficient and effectively improves the processing efficiency. Furthermore, the functional part 234 and the second fixing part 233 can be regarded as being processed from a single plate structure by cutting, bending and other processes. The resulting elastic member 230 has a simple structure and is easy to process.

[0099] In detail, the second fixing part 233 includes two spaced-apart second fixing segments 2331, and the functional part 234 is located in the middle region of the two second fixing segments 2331.

[0100] In this embodiment, the two second fixing segments 2331 are symmetrically arranged, and the functional part 234 is located in the middle region between the two second fixing segments 2331, which can make the elastic member 230 subjected to balanced force. Therefore, when the elastic member 230 is installed in the elastic member groove 214, the installation stability can be improved.

[0101] Specifically, the two second fixed sections 2331 abut against the bottom wall of the elastic groove 214.

[0102] It should be noted that since the functional part 234 is spaced apart from the two second fixed sections 2331, there are three connecting parts 231. That is, the two second fixed sections 2331 are connected to the two connecting parts 231 on the left and right sides respectively, and the functional part 234 is connected to the connecting part 231 in the middle.

[0103] Furthermore, the first fixing part 232 and the second fixing part 233 are arranged at an angle. It can be understood that the angle can be adjusted according to the actual assembly requirements, and no specific limitation is made here.

[0104] Furthermore, the functional part 234 is connected to the connecting part 231, and the snap fastener 220 is provided with an abutting part 222, which abuts against the functional part 234.

[0105] In this embodiment, the functional part 234 abuts against the abutment part 222 disposed on the top side of the jumper 220 to restrict the movement of the jumper 220 away from the jumper groove 213. Moreover, since the bottom side of the jumper 220 is also used to abut against the moving contact 310, the functional part 234 also applies a downward holding force to the jumper 220. When the jumper 220 disengages from the moving contact 310, the functional part 234 can cause the jumper 220 to rotate downward so that the jumper 220 returns to the state of abutting against the moving contact 310.

[0106] Furthermore, the abutting part 222 includes a first abutting surface 2221, which is disposed on the top of the snap fastener 220. The functional part 234 abuts against the first abutting surface 2221 to make the snap fastener 220 tend to rotate away from the elastic member 230 so that the snap fastener 220 is reset. The first abutting surface 2221 also abuts against the top wall of the snap fastener groove 213.

[0107] In this embodiment, the functional part 234 abuts against the first abutting surface 2221 disposed on the top of the jumper 220, thereby applying a downward holding force to the jumper 220 through the functional part 234. When the jumper 220 is disengaged from the moving contact 310, the functional part 234 can rotate the jumper 220 downward so that the jumper 220 returns to the state of abutting against the moving contact 310.

[0108] Furthermore, the abutting part 222 also includes a second abutting surface 2222, and the functional part 234 is also used to abut against the second abutting surface 2222 to restrict the movement of the snap fastener 220 away from the snap fastener groove 213.

[0109] In this embodiment, since the opening directions of the elastic element groove 214 and the snap fastener groove 213 are opposite, the installation directions of the elastic element 230 and the snap fastener 220 are opposite. Therefore, by the contact between the functional part 234 of the elastic element 230 and the second contact part 222 of the snap fastener 220, the snap fastener 220 can be prevented from moving away from the snap fastener groove 213, thus preventing the snap fastener 220 from falling out of the snap fastener groove 213, thereby achieving a secure self-locking of the snap fastener 220, the elastic element 230 and the mounting base 210.

[0110] In detail, the first abutting surface 2221 is horizontally arranged, and the second abutting surface 2222 is connected to the first abutting surface 2221 by clamping. Specifically, the second abutting surface 2222 is vertically connected to the first abutting surface 2221, and the second abutting surface 2222 faces the elastic groove 214.

[0111] It should be noted that when the jumper 220 is in the normal installation state, the functional part 234 only abuts against the first contact surface 2221.

[0112] Furthermore, the elastic member 230 also includes an anti-detachment part 235, which is connected to the connecting part 231, and the anti-detachment part 235 is located on the side of the first fixing part 232 away from the second fixing part 233, that is, the anti-detachment part 235 and the first fixing part 232 are also arranged at an angle.

[0113] The mounting base 210 is also provided with an anti-detachment groove 215, which is located on the side wall or top wall of the elastic element groove 214, and the anti-detachment part 235 is embedded in the anti-detachment groove 215.

[0114] In this embodiment, the anti-detachment groove 215 is connected to the elastic element groove 214. Therefore, when the elastic element 230 is installed into the elastic element groove 214, the anti-detachment part 235 can be embedded into the anti-detachment groove 215 and abut against the side wall of the anti-detachment groove 215. This allows the elastic element 230 to be stably installed in the elastic element groove 214 under the abutment action of the anti-detachment part 235, preventing the elastic element 230 from detaching and further improving the structural installation strength and self-locking strength of the installation assembly 200.

[0115] It should be noted that when installing the elastic element 230 and the snap fastener 220 onto the mounting base 210, the elastic element 230 can be installed into the elastic element groove 214 first, so that the anti-detachment part 235 is embedded in the anti-detachment groove 215 to prevent the elastic element 230 from falling off. Then, the snap fastener 220 can be installed into the snap fastener groove 213 to fix and cooperate with the elastic element 230. Of course, the snap fastener 220 can also be installed into the snap fastener groove 213 first, and then the elastic element 230 can be installed into the elastic element groove 214. This installation method can achieve the installation without the need for the anti-detachment part 235 to fix and cooperate with the anti-detachment groove 215.

[0116] Furthermore, the elastic element groove 214 is provided with a relief groove 216. The relief groove 216 and the anti-detachment groove 215 are located on the same wall and are arranged sequentially along the opening direction towards the elastic element groove 214. The top wall of the relief groove 216 is inclined.

[0117] It should be noted that, since the two fixing parts are set at an angle, the anti-detachment part 235 is also set at an angle to the fixing part.

[0118] In this embodiment, since the anti-detachment part 235 is set at an angle to the first fixing part 232 and is located on the side of the first fixing part 232 away from the second fixing part 233, during the process of sliding the elastic member 230 into the elastic member groove 214, the anti-detachment part 235 is avoided by providing a relief groove 216 on the wall of the elastic member groove 214, so that the first fixing part 232 and the second fixing part 233 can smoothly extend into the elastic member groove 214; and the top wall of the relief groove 216 is set at an inclination so that the anti-detachment part 235 can enter the anti-detachment groove 215 after being slightly squeezed by the top wall of the relief groove 216.

[0119] Furthermore, the snap fastener 220 is provided with a first rotating part 223, and the snap fastener groove 213 is provided with a second rotating part 217. The first rotating part 223 and the second rotating part 217 are slidably engaged so that the snap fastener 220 can rotate relative to the snap fastener groove 213.

[0120] In this embodiment, both the first rotating part 223 and the second rotating part 217 are arc-shaped structures. Therefore, through the sliding cooperation of the first rotating part 223 and the second rotating part 217, the jump buckle 220 can rotate relative to the mounting base 210.

[0121] Furthermore, the mounting base 210 is also provided with a clearance channel 218, which is connected to the buckle groove 213. At least a portion of the buckle 220 is embedded in the buckle groove 213, and at least another portion extends through the clearance channel 218 to one side of the elastic element groove 214.

[0122] In this embodiment, both the elastic element groove 214 and the snap fastener groove 213 are connected to the clearance channel 218, so that the first abutting surface 2221 of the snap fastener 220 extends to one side of the elastic element groove 214 through the clearance channel 218. Thus, when the functional part 234 of the snap fastener 220 abuts against the first abutting surface 2221, the first abutting surface 2221 abuts against the top wall of the snap fastener groove 213, thereby making the snap fastener 220 in a stable installation state.

[0123] In summary, this embodiment of the invention provides an operating device 10. When the operating device 10 is operating normally, the trip latch 220 is mounted on the mounting base 210 and abuts against the moving contact 310. The mounting base 210, driven by the handle 410, can rotate the trip latch 220, ultimately causing the moving contact 310 to rotate, thus achieving the closing or opening of the moving contact 310 and the stationary contact 320. When the moving contact 310 and the stationary contact 320 are closed, and in the event of a fault in the operating mechanism or circuit, since the trip latch 220 is movably mounted on the mounting base 210, it can be opened via the trip latch 220. The moving contact 310 rotates relative to the mounting base 210 to disengage from the moving contact 310, so that the moving contact 310 is no longer restricted by the trip latch 220 and the mounting base 210. At this time, the moving contact 310 can be reset to the open state with the stationary contact 320 under the action of the moving contact reset member 330. Therefore, after the moving contact 310 is released from the restriction of the trip latch 220, the moving contact 310 is only allowed to detach from the mounting base and rotate independently under the action of the moving contact reset member 330 and separate from the stationary contact 320. The moment of inertia is small and the tripping speed is fast, thereby realizing the rapid separation of the moving contact 310 and the stationary contact 320, which improves the safety performance of the operating device 10.

[0124] Furthermore, embodiments of the present invention also provide a circuit breaker, including the operating device 10 as described in the above embodiments.

[0125] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An operating device (10), characterized in that, include: Mounting housing (100); Mounting base (210), which is rotatably disposed on the mounting housing (100); A movable contact (310) is rotatably disposed on the mounting housing (100); Stationary contact (320); A moving contact reset member (330) is used to give the moving contact (310) a tendency to move away from the stationary contact (320); A trip latch (220) is movably disposed on the mounting base (210). The trip latch (220) is used to abut against the moving contact (310) so that the mounting base (210) can drive the trip latch (220) to rotate under the drive of the handle (410), so as to drive the moving contact (310) and the stationary contact (320) to close or open. The trip latch (220) can disengage from the moving contact (310) so that when the moving contact (310) and the stationary contact (320) are closed, the moving contact (310) can disengage from the mounting base (210) and separate from the stationary contact (320) under the drive of the moving contact reset member (330).

2. The operating device (10) according to claim 1, characterized in that, The operating device (10) further includes a handle (410) and a connecting rod (420). The mounting housing (100) is provided with a main shaft (110). The mounting base (210) and the moving contact (310) are rotatably mounted on the main shaft (110). The handle (410), the connecting rod (420) and the mounting base (210) are sequentially connected and together form a four-bar linkage mechanism. The four-bar linkage mechanism is not damaged when the operating device (10) trips and opens.

3. The operating device (10) according to claim 2, characterized in that, One end of the jumper (220) is movably disposed on the mounting base (210), and the other end is used to abut or disengage from the moving contact (310). The direction of movement of the jumper (220) is perpendicular to the plane of rotation of the moving contact (310).

4. The operating device (10) according to claim 1, characterized in that, The operating device (10) further includes an elastic element (230). The mounting base (210) is provided with a snap-lock groove (213) and an elastic element groove (214). At least a portion of the snap-lock (220) is embedded in the snap-lock groove (213), and at least another portion is located on one side of the elastic element groove (214). The elastic element (230) is disposed in the elastic element groove (214) and abuts against the snap-lock (220) to restrict the snap-lock (220) from moving in a direction away from the snap-lock groove (213) and to make the snap-lock (220) abut against the moving contact (310).

5. The operating device (10) according to claim 1, characterized in that, The mounting shell (100) is provided with a third mating part (120), the mounting base (210) is provided with a fourth mating part (211), and the moving contact reset member (330) is a torsion spring structure, with one end abutting against the third mating part (120) and the other end abutting against the fourth mating part (211).

6. The operating device (10) according to claim 1, characterized in that, The moving contact (310) has a recessed first abutment (311) on its side wall, and the end of the snap fastener (220) has a protruding second abutment (221), which engages with the first abutment (311).

7. The operating device (10) according to claim 2, characterized in that, The operating device (10) further includes a tripping mechanism (500), which includes a latch (510) and a drive member (520). The drive member (520) is disposed on the mounting housing (100), and the latch (510) is rotatably disposed on the main shaft (110). The latch (510) abuts against the jumper (220) to limit the jumper (220) so that the jumper (220) and the moving contact (310) remain in abutment state; or the latch (510) is used to rotate in a first direction under the drive of the drive member (520) so that the latch (510) disengages from the jumper (220).

8. The operating device (10) according to claim 7, characterized in that, The tripping mechanism (500) further includes a latch reset member (530), which is disposed on the mounting base (210) and connected to the latch (510). The latch reset member (530) is used to give the latch (510) a tendency to rotate in a second direction so that the latch (510) abuts against the jumper (220), wherein the first direction and the second direction are opposite.

9. The operating device (10) according to claim 8, characterized in that, The latch reset component (530) is a torsion spring structure. The mounting base (210) is provided with a first mating part (212), and the latch (510) is provided with a second mating part (511). The latch reset component (530) is installed on the mounting shaft of the mounting base (210), and one end abuts against the first mating part (212), and the other end abuts against the second mating part (511).

10. The operating device (10) according to claim 2, characterized in that, The moving contact (310) is provided with a clearance hole (312), the main shaft (110) passes through the clearance hole (312), the moving contact (310) can rotate relative to the main shaft (110), and the moving contact (310) can be displaced in the rotation plane.

11. The operating device (10) according to claim 10, characterized in that, The clearance hole (312) has a first end (3121) and a second end (3122); During the process of the handle (410) driving the moving contact (310) to close and being in overtravel, the moving contact (310) moves along the extension direction of the relief hole (312), and the main shaft (110) moves from the first end (3121) to the second end (3122) relative to the relief hole (312).

12. The operating device (10) according to claim 1, characterized in that, The mounting housing (100) is also provided with a limiting shaft (130), which is used to abut against the moving contact (310) under the action of the moving contact reset member (330).

13. A circuit breaker, characterized in that, Includes the operating device (10) as described in any one of claims 1-12.

Images