Operating mechanism and circuit breaker
By incorporating a fixedly connected push plate and side plate into the lever structure of the circuit breaker, combined with a raised groove structure, elastic elements, and reinforcing ribs, the problem of lever structure deformation is solved, thereby improving the reliability and lifespan of the circuit breaker.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DELIXI ELECTRIC
- Filing Date
- 2025-06-09
- Publication Date
- 2026-06-16
AI Technical Summary
The lever structure of existing circuit breakers is prone to deformation during operation, which affects the reliability of the circuit breaker.
By setting fixed-connection push plates and side plates in the lever structure, deformation is reduced; the combination of protrusions and grooves increases connection stability; and elastic elements and reinforcing ribs are used to improve structural strength.
The strength and reliability of the lever structure have been enhanced, the service life of the circuit breaker has been extended, and the reliability of the circuit breaker switching between different states has been ensured.
Smart Images
Figure CN224366800U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of low-voltage electrical technology, and in particular to an operating mechanism and a circuit breaker. Background Technology
[0002] When a circuit breaker experiences abnormal conditions such as overload, overcurrent, or short circuit, it can switch its operating state, changing the circuit from a closed state to an open state, thus reducing the possibility of the circuit fault escalating further.
[0003] The switching of the circuit breaker's operating state is mainly performed by the operating mechanism. The operating mechanism includes a matching lever structure and a mounting bracket. The lever structure is rotatable relative to the mounting bracket to drive other structural actions of the circuit breaker, enabling the circuit breaker to switch between different operating states.
[0004] Based on the existing operating mechanism structure, the lever structure is prone to deformation during the operation of the circuit breaker, which in turn affects the reliability of the circuit breaker. Utility Model Content
[0005] This application provides an operating mechanism and a circuit breaker that can reduce the deformation of the lever structure during the operation of the circuit breaker, ensure the strength of the lever structure, and thus ensure the reliability of the circuit breaker.
[0006] In a first aspect, this application provides an operating mechanism, which includes a mounting bracket, a jumper, and a lever structure. The mounting bracket includes a first limiting structure and a second limiting structure disposed opposite to each other. The jumper is rotatably mounted on the mounting bracket. The lever structure is rotatably mounted on the mounting bracket and can abut against the first limiting structure or the second limiting structure. The lever structure includes a push plate and a first side plate and a second side plate disposed opposite to each other. The push plate includes a first connecting surface and a second connecting surface disposed opposite to each other. The first connecting surface is fixedly connected to the first side plate, and the second connecting surface is fixedly connected to the second side plate. The push plate can drive the jumper to rotate relative to the mounting bracket.
[0007] In this application example, the mounting bracket can provide a mounting carrier for structures such as the trip latch and lever structure. The trip latch can ensure the reliability of the operating mechanism's operation, thereby ensuring the reliability of the circuit breaker switching from the closed state to the open state or the tripped state.
[0008] Compared to existing technologies where the first side plate of the lever structure is bent towards the second side plate to form a first push plate, and the second side plate is bent towards the first side plate to form a second push plate, with the ends of the first and second push plates being free ends, the first and second push plates are prone to deformation during the process of abutting against the latch and actuating the latch. In this application example, the first connecting surface of the push plate in the lever structure is fixedly connected to the first side plate, and the second connecting surface of the push plate is fixedly connected to the second side plate. During the process of the push plate abutting against the latch and actuating the latch, the push plate can withstand a larger force and is less prone to deformation, ensuring the strength and reliability of the lever structure, extending its service life, and thus ensuring the reliability of the circuit breaker.
[0009] Furthermore, in this application example, the push plate is fixedly connected between the first side plate and the second side plate, which can apply force to the first side plate and the second side plate. During the use of the operating mechanism, the deformation of the first side plate in the direction toward the second side plate can be reduced, and the deformation of the second side plate in the direction toward the first side plate can also be reduced, further ensuring the reliability of the lever structure.
[0010] In some possible implementations, the first connecting surface has a first connecting structure, and the second connecting surface has a second connecting structure. The side of the first side plate facing the first connecting surface has a third connecting structure, which is fixedly connected to the first connecting structure. The side of the second side plate facing the second connecting surface has a fourth connecting structure, which is fixedly connected to the second connecting structure.
[0011] In this example, since the first connecting structure is located on the first connecting surface, which is part of the push plate, and the third connecting structure is located on the first side plate, the connection between the push plate and the first side plate can be achieved through the connection between the first connecting structure and the third connecting structure. The functions of the second and fourth connecting structures are similar to those of the first and third connecting structures, and will not be elaborated upon here.
[0012] In some possible implementations, the first connecting structure is a groove structure, and the third connecting structure is a protrusion structure, with at least a portion of the protrusion structure extending into the groove structure. Alternatively, the first connecting structure is a protrusion structure, the third connecting structure is a groove structure, and at least a portion of the protrusion structure extends into the groove structure.
[0013] In this application example, regardless of whether the groove structure is the first connecting structure and the protrusion structure is the third connecting structure, or whether the protrusion structure is the first connecting structure and the groove structure is the third connecting structure, at least some of the protrusion structures can extend into the groove structure. The cooperation between the protrusion structure and the groove structure achieves a fixed connection between the push plate and the first side plate, reduces the amplitude of the push plate swaying relative to the first side plate, and ensures the reliability of the lever structure.
[0014] In some possible implementations, the protruding structure has a first guide surface, the inclination direction of which is adapted to the direction in which the protruding structure extends into the recessed structure. And / or, the recessed structure has a second guide surface, the inclination direction of which is adapted to the direction in which the protruding structure extends into the recessed structure.
[0015] The first guide surface is provided on the protruding structure, and the inclination direction of the first guide surface is adapted to the direction in which the protruding structure extends into the groove structure. Along the direction in which the protruding structure extends into the groove structure, the size of the protruding structure can gradually decrease. Based on this, during the process of the protruding structure extending into the groove structure, the end with the smallest size of the protruding structure can extend into the groove structure first, making it easier for the protruding structure to extend into the groove structure and improving the fitting efficiency between the protruding structure and the groove structure.
[0016] The second guide surface is located in the groove structure, and the inclination direction of the second guide surface is adapted to the direction in which the protrusion extends into the groove structure. Along the direction in which the protrusion extends into the groove structure, the size of the groove structure can gradually decrease. Based on this, during the process of the protrusion extending into the groove structure, the protrusion can first engage with the end of the groove with the largest size, making it easier for the protrusion to extend into the groove structure and improving the engagement efficiency between the protrusion and the groove structure.
[0017] In some possible implementations, the operating mechanism further includes an elastic element and a connecting rod, the connecting rod being mounted on a mounting bracket. The lever structure also includes a connecting plate, which is fixedly connected between the first side plate and the second side plate, and the connecting plate connects the first side plate and the second side plate, the connecting plate being substantially perpendicular to the push plate. The connecting plate has a fifth connecting structure, one end of the elastic element is connected to the fifth connecting structure, and the other end of the elastic element is connected to the connecting rod.
[0018] In this application example, the fifth connecting structure on the connecting plate can be connected to the elastic element in cooperation with the connecting rod. The elastic element can provide energy to the operating mechanism, making the circuit breaker's opening or closing action more reliable and further ensuring the reliability of the circuit breaker's use.
[0019] In some possible implementations, the lever structure also includes a reinforcing rib, with one side of the reinforcing rib connected to the push plate and the other side of the reinforcing rib connected to the connecting plate.
[0020] In this example, by setting reinforcing ribs, forces can be applied to the connecting plate and the push plate, reducing the deformation of the connecting plate relative to the push plate, and at the same time reducing the deformation of the push plate relative to the connecting plate, ensuring the strength of the lever structure and further ensuring the reliability of the operating mechanism and the circuit breaker.
[0021] In some possible implementations, the first side plate includes a first abutting surface and a second abutting surface disposed opposite to each other, the first limiting structure is the first limiting surface, the first abutting surface is capable of abutting against the first limiting surface, the second limiting structure is the second limiting surface, and the second abutting surface is capable of abutting against the second limiting surface.
[0022] Compared to existing technologies where the limiting structure is a protruding structure, in this application example, the first limiting structure is a first limiting surface. The closing limit of the operating mechanism is achieved through the contact between the first abutment surface and the first limiting surface. This results in a larger contact area between the first abutment surface and the first limiting surface, thereby reducing the pressure between them and minimizing the deformation of the first side plate and the first limiting surface. This further ensures the reliability of the lever structure and the mounting bracket. The function of the second abutment surface cooperating with the second limiting surface is similar to that of the first abutment surface cooperating with the first limiting surface, and will not be described in detail here.
[0023] In some possible implementations, a rotating groove is provided between the first limiting surface and the second limiting surface. The lever structure includes a rotating part, at least a portion of which extends into the rotating groove, and the rotating part is rotatable within the rotating groove.
[0024] In this example, since the rotating groove is located between the first limiting surface and the second limiting surface, and the first limiting surface and the second limiting surface are part of the mounting bracket, and the rotating part is part of the lever structure, the rotating connection between the lever structure and the mounting bracket can be realized through the rotating connection between the rotating part and the rotating groove.
[0025] In some possible implementations, the mounting bracket includes a first mounting plate and a second mounting plate disposed opposite to each other, and the rotating groove includes a first slot and a second slot, the first slot being disposed on the first mounting plate and the second slot being disposed on the second mounting plate. A first limiting rib is provided on the side of the first mounting plate opposite to the second mounting plate, the position of the first limiting rib corresponding to the position of the first slot. And / or, a second limiting rib is provided on the side of the second mounting plate opposite to the first mounting plate, the position of the second limiting rib corresponding to the position of the second slot.
[0026] In this example, the partial extension of the lever structure into the first slot enables the connection between the lever structure and the mounting bracket. A first limiting rib is provided on the side of the first mounting plate opposite to the second mounting plate. The position of the first limiting rib corresponds to the position of the first slot. Therefore, the first limiting rib can apply a force towards the second mounting plate to the lever structure, reducing the deformation of the lever structure and further ensuring its reliability. The second slot and the second limiting rib function similarly to the first slot and the first limiting rib, and will not be elaborated upon here.
[0027] Secondly, this application provides a circuit breaker, which includes a housing and an operating mechanism provided in any of the above examples, the operating mechanism being mounted on the housing.
[0028] The beneficial effects of the operating mechanism provided in the second aspect and the various possible designs of the second aspect can be found in the first aspect and the various possible implementations of the first aspect, and will not be repeated here. Attached Figure Description
[0029] Figure 1 This is a schematic diagram of an operating mechanism provided as an example of this application.
[0030] Figure 2 A schematic diagram of a lever structure provided as an example in this application.
[0031] Figure 3 This is a schematic diagram of the structure of a first mounting plate provided as an example of this application.
[0032] Figure 4 This is a schematic diagram of a lever structure and mounting bracket provided as an example of this application.
[0033] Explanation of reference numerals in the attached figures:
[0034] 100. Operating mechanism; 110. Mounting bracket; 111. First mounting plate; 1111. First limiting structure; 1112. Second limiting structure; 1113. First groove; 1114. First limiting rib; 120. Lever structure; 121. First side plate; 1211. First abutting surface; 1212. Second abutting surface; 1213. First connecting structure; 122. Second side plate; 123. Pushing plate; 1231. Third connecting structure; 124. Connecting plate; 125. Rotating part; 1251. First rotating part; 1252. Second rotating part; 130. Elastic element. Detailed Implementation
[0035] To make the purpose, technical solutions, and advantages of the examples in this application clearer, the technical solutions in the examples of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described examples are only a part of the examples in this application, not all of them. Based on the examples in this application, all other examples obtained by those skilled in the art without inventive effort are within the scope of protection of this application.
[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terms used herein in the description of the application are for the purpose of describing particular examples only and are not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the description, claims and drawings of this application are intended to cover non-exclusive inclusion.
[0037] In this document, the term "example" means that a particular feature, structure, or characteristic described in connection with the example can be included in at least one example of this application. The appearance of the phrase "example" in various places in the specification does not necessarily refer to the same example, nor is it a separate or alternative example mutually exclusive with other examples. It will be explicitly and implicitly understood by those skilled in the art that the examples described herein can be combined with other examples.
[0038] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists, A and B exist simultaneously, or B exists. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.
[0039] The directional terms used in the following description refer to the directions shown in the diagram and are not intended to limit the specific structure of the operating mechanism of this application.
[0040] Furthermore, the terms "first," "second," etc., in the specification and claims of this application or in the aforementioned drawings are used to distinguish different objects rather than to describe a specific order, and may explicitly or implicitly include one or more of the features.
[0041] In the description of this application, unless otherwise stated, "multiple" means two or more (including two), and similarly, "multiple groups" means two or more (including two groups).
[0042] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, "connection" or "joining" in mechanical structures can refer to a physical connection, such as a fixed connection, for example, a connection fixed by a partition, such as a connection fixed by screws, bolts, or other partitions; a physical connection can also be a detachable connection, such as a snap-fit or interlocking connection; a physical connection can also be an integral connection, such as a connection formed by welding, bonding, or integral molding. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0043] When a circuit breaker experiences abnormal conditions such as overload, overcurrent, or short circuit, it can switch from the closed state to the corresponding open or tripped state, thus switching the circuit from a closed state to an open state and reducing the possibility of the circuit fault escalating further.
[0044] The switching of the circuit breaker's operating state is mainly performed by the operating mechanism. The operating mechanism includes a cooperating lever structure, mounting bracket, trip latch, etc. The lever structure is rotatable relative to the mounting bracket to drive the operation of other structures of the circuit breaker, enabling the circuit breaker to switch between different operating states.
[0045] Based on the existing lever structure, the lever structure includes two bent push plates spaced apart. The push plates abut against the trip latch, thereby actuating the trip latch. However, during the use of the circuit breaker, the push plates are prone to deformation, which affects the reliability of the circuit breaker.
[0046] Based on the above, this application provides an operating mechanism and a circuit breaker.
[0047] For example, this application provides a circuit breaker.
[0048] The circuit breaker includes a housing and an operating mechanism, which is mounted in the housing.
[0049] The enclosure is made of insulating materials, such as polyvinyl chloride (PVC) or polycarbonate (PC plastic). The insulating material reduces the possibility of current escaping from the enclosure, ensuring the circuit breaker's safe operation.
[0050] The circuit breaker may also include a tripping mechanism and a contact mechanism. For example, when the circuit is in a fault state such as overload, short circuit, or undervoltage, the bimetallic strip in the tripping mechanism is heated and can apply a force to the operating mechanism, causing the operating mechanism to operate, which in turn drives the contact mechanism to operate, causing the circuit breaker to trip.
[0051] The circuit breaker can be a single-phase circuit breaker or a multi-phase circuit breaker; this application does not impose any specific limitations on this.
[0052] During the process of switching the circuit breaker from the tripped state to the closed state, the operating mechanism is driven by external force to move the contact mechanism and the tripping mechanism, so that the stationary contact and the moving contact of the circuit breaker come into contact, thereby realizing the closing of the circuit breaker.
[0053] For a detailed description of the operating mechanism, please refer to the relevant description below.
[0054] Next, we will elaborate on the operating mechanism mentioned in the above example.
[0055] To enable those skilled in the art to better understand the present application, the operating mechanism provided in the example of the present application will be clearly and completely described below with reference to the accompanying drawings.
[0056] For example, this application provides an operating mechanism. Figure 1 This application provides a schematic diagram of the structure of an operating mechanism. Figure 2 This application provides a schematic diagram of a lever structure as an example. Figure 3 This is a schematic diagram of the structure of a first mounting plate provided as an example of this application.
[0057] Please refer to Figures 1-3 The operating mechanism 100 includes a mounting bracket 110, a jumper, and a lever structure 120. The mounting bracket 110 includes a first limiting structure 1111 and a second limiting structure 1112 disposed opposite to each other. The jumper is rotatably mounted on the mounting bracket 110. The lever structure 120 is rotatably mounted on the mounting bracket 110 and can abut against the first limiting structure 1111 or the second limiting structure 1112. The lever structure 120 includes a push plate 123 and a first side plate 121 and a second side plate 122 disposed opposite to each other. The push plate 123 includes a first connecting surface and a second connecting surface disposed opposite to each other. The first connecting surface is fixedly connected to the first side plate 121, and the second connecting surface is fixedly connected to the second side plate 122. The push plate 123 can drive the jumper to rotate relative to the mounting bracket 110.
[0058] The mounting bracket 110 includes two mounting plates arranged opposite each other. Each mounting plate is provided with a first limiting structure 1111 and a second limiting structure 1112. The mounting bracket 110 and the jump buckle both cooperate with the two mounting plates.
[0059] The first limiting structure 1111 can be provided on the protruding structure of the mounting bracket 110, and the first limiting structure 1111 can be provided on the limiting surface of the mounting bracket 110. The second limiting structure 1112 can be provided on the protruding structure of the mounting bracket 110, and the second limiting structure 1112 can be provided on the limiting surface of the mounting bracket 110. This application example does not make specific limitations in this regard, as long as it is ensured that the lever structure 120 can abut against the corresponding limiting structure when it is in different working states.
[0060] The jumper can be rotatably connected to the mounting bracket 110 through a hole-shaft engagement, or the jumper can be rotatably connected to the mounting bracket 110 through a slot and a protrusion engagement. This application example does not impose specific restrictions on the connection method between the jumper and the mounting bracket 110.
[0061] The mounting bracket 110 can be located between the jumper and the lever structure 120, or the jumper can be located inside the mounting bracket 110, and the side wall of the lever structure 120 away from the jumper can be flush with the side wall of the mounting bracket 110 away from the jumper. This application example does not impose specific limitations on this.
[0062] When the operating mechanism 100 drives other structures to put the circuit breaker in the closed state, the lever structure 120 abuts against the first limiting structure 1111. Specifically, at least one of the side walls of the first side plate 121 and the second side plate 122 near the first limiting structure 1111 can abut against the first limiting structure 1111. When the operating mechanism 100 drives other structures to put the circuit breaker in the open state, the lever structure 120 abuts against the second limiting structure 1112. Specifically, at least one of the side walls of the first side plate 121 and the second side plate 122 near the second limiting structure 1112 can abut against the second limiting structure 1112.
[0063] The push plate 123 is fixedly connected between the first side plate 121 and the second side plate 122, and the push plate 123 connects the first side plate 121 and the second side plate 122. The push plate 123 is basically perpendicular to the first side plate 121 and the push plate 123 is basically perpendicular to the second side plate 122.
[0064] The push plate 123 is basically perpendicular to the first side plate 121. It can be understood that the angle formed by the push plate 123 and the first side plate 121 is less than or equal to 95° and greater than or equal to 85°.
[0065] The push plate 123 is basically perpendicular to the second side plate 122. It can be understood that the angle formed by the push plate 123 and the second side plate 122 is less than or equal to 95° and greater than or equal to 85°.
[0066] The push plate 123 includes a first connecting surface and a second connecting surface disposed opposite to each other. The first connecting surface can be fixedly connected to the first side plate 121 by means of snap-fit, bonding, threaded connection, riveting, fusion bonding, etc. The second connecting surface can be fixedly connected to the second side plate 122 by means of snap-fit, bonding, threaded connection, riveting, fusion bonding, etc. The example in this application does not specifically limit the connection method between the push plate 123 and the two side plates.
[0067] The lever structure 120 can be formed by bending, or by casting or other methods.
[0068] In this application example, the mounting bracket 110 can provide a mounting carrier for structures such as the trip latch and lever structure 120. The trip latch can ensure the reliability of the operation of the operating mechanism 100, thereby ensuring the reliability of the circuit breaker switching from the closed state to the open state or the tripped state.
[0069] Compared to the prior art where the first side plate of the lever structure is bent towards the second side plate to form a first push plate, and the second side plate is bent towards the first side plate to form a second push plate, with the ends of the first and second push plates being free ends, the first and second push plates are prone to deformation during the process of abutting the latch and driving the latch to move. In this application example, the first connecting surface of the push plate 123 in the lever structure 120 is fixedly connected to the first side plate 121, and the second connecting surface of the push plate 123 is fixedly connected to the second side plate 122. During the process of the push plate 123 abutting against the latch and pushing the latch to move, the push plate 123 can withstand a larger force and is less prone to deformation, ensuring the strength of the lever structure 120, ensuring the reliability of the lever structure 120, extending the service life of the lever structure 120, and thus ensuring the reliability of the circuit breaker.
[0070] Furthermore, in this application example, the push plate 123 is fixedly connected between the first side plate 121 and the second side plate 122, which can apply force to the first side plate 121 and the second side plate 122. During the use of the operating mechanism, the deformation of the first side plate 121 in the direction toward the second side plate 122 can be reduced, and the deformation of the second side plate 122 in the direction toward the first side plate 121 can also be reduced, further ensuring the reliability of the lever structure 120.
[0071] Based on the operating mechanism 100 provided in the above example, please refer to... Figure 2The first connecting surface is provided with a first connecting structure 1213, and the second connecting surface is provided with a second connecting structure. The side plate 121 facing the first connecting surface is provided with a third connecting structure 1231, which is fixedly connected to the first connecting structure 1213. The side plate 122 facing the second connecting surface is provided with a fourth connecting structure, which is fixedly connected to the second connecting structure.
[0072] The connection between the first connection structure 1213 and the third connection structure 1231 is similar to the connection between the second connection structure and the fourth connection structure. Hereinafter, the connection between the first connection structure 1213 and the third connection structure 1231 and the connection between the second connection structure and the fourth connection structure will be described by way of example only.
[0073] The first connection structure 1213 and the third connection structure 1231 can be directly connected, or they can be indirectly connected.
[0074] For example, both the first connecting structure 1213 and the third connecting structure 1231 can be hole-like structures. In this case, the first connecting structure 1213 and the third connecting structure 1231 can be indirectly connected by threaded parts or riveting parts.
[0075] One of the first connecting structure 1213 and the third connecting structure 1231 can be a hook structure and the other can be a slot structure. The hook structure can engage with the slot structure, and the connection between the first connecting structure 1213 and the third connecting structure 1231 can be achieved through the engagement of the hook structure and the slot structure.
[0076] One of the first connecting structure 1213 and the third connecting structure 1231 is a hole-like structure or a groove-like structure, and the other is a protrusion structure. In this case, the protrusion structure can extend into the hole-like structure, and the connection between the first connecting structure 1213 and the third connecting structure 1231 is achieved through the cooperation between the protrusion structure and the hole-like structure; or, the protrusion structure can extend into the groove-like structure, and the connection between the first connecting structure 1213 and the third connecting structure 1231 is achieved through the cooperation between the protrusion structure and the groove-like structure.
[0077] In this application example, since the first connecting structure 1213 is located on the first connecting surface, which is part of the push plate 123, and the third connecting structure 1231 is located on the first side plate 121, the connection between the push plate 123 and the first side plate 121 can be achieved through the connection between the first connecting structure 1213 and the third connecting structure 1231.
[0078] Next, the connection between the first connecting structure 1213 and the third connecting structure 1231 will be described using the example of one of the first connecting structure 1213 and the third connecting structure 1231 being a groove structure and the other being a protrusion structure.
[0079] The first connecting structure 1213 is a groove structure, and the third connecting structure 1231 is a protrusion structure, with at least a portion of the protrusion structure extending into the groove structure. Alternatively, the first connecting structure is a protrusion structure, the third connecting structure is a groove structure, and at least a portion of the protrusion structure extends into the groove structure.
[0080] When the first connecting structure 1213 is a groove structure and the third connecting structure 1231 is a protrusion structure, the protrusion structure can be a protrusion, a protrusion, a protrusion strip, or other protrusion that protrudes from the first side plate 121, and the shape of the groove structure is adapted to the shape of the protrusion structure.
[0081] There may be only one protrusion, or there may be multiple protrusions spaced apart. The number of grooves may be equal to the number of protrusions, in which case there is a one-to-one correspondence between the grooves and protrusions. Alternatively, the number of grooves may be less than the number of protrusions, in which case one groove can be paired with multiple protrusions. This application does not impose specific limitations on this aspect.
[0082] The protruding structure and the groove structure can be clearance fit, or the protruding structure and the groove structure can be partially interference fit. For example, along the direction of the push plate 123 pushing the buckle, the protruding structure and the groove structure are interference fit.
[0083] In this application example, regardless of whether the groove structure is the first connecting structure 1213 and the protrusion structure is the third connecting structure 1231, or the protrusion structure is the first connecting structure 1213 and the groove structure is the third connecting structure 1231, at least some of the protrusion structures can extend into the groove structure. The cooperation between the protrusion structure and the groove structure achieves a fixed connection between the push plate 123 and the first side plate 121, reducing the amplitude of the swaying of the push plate 123 relative to the first side plate 121 and ensuring the reliability of the lever structure 120.
[0084] Based on the operating mechanism 100 provided in the above example, the protruding structure is provided with a first guide surface, the inclination direction of which is adapted to the direction in which the protruding structure extends into the groove structure. And / or, the groove structure is provided with a second guide surface, the inclination direction of which is adapted to the direction in which the protruding structure extends into the groove structure.
[0085] Regardless of whether the protruding structure is the first connecting structure 1213 and the groove structure is the third connecting structure 1231, or whether the protruding structure is the third connecting structure 1231 and the groove structure is the first connecting structure 1213, the protruding structure can be provided with a first guide surface and the groove structure can be provided with a second guide surface.
[0086] The first guide surface is provided on the protruding structure, and the inclination direction of the first guide surface is adapted to the direction in which the protruding structure extends into the groove structure. Along the direction in which the protruding structure extends into the groove structure, the size of the protruding structure can gradually decrease. Based on this, during the process of the protruding structure extending into the groove structure, the end with the smallest size of the protruding structure can extend into the groove structure first, making it easier for the protruding structure to extend into the groove structure and improving the fitting efficiency between the protruding structure and the groove structure.
[0087] The second guide surface is located in the groove structure, and the inclination direction of the second guide surface is adapted to the direction in which the protrusion extends into the groove structure. Along the direction in which the protrusion extends into the groove structure, the size of the groove structure can gradually decrease. Based on this, during the process of the protrusion extending into the groove structure, the protrusion can first engage with the end of the groove with the largest size, making it easier for the protrusion to extend into the groove structure and improving the engagement efficiency between the protrusion and the groove structure.
[0088] In this application example, the first guide surface may be provided only in the first connecting structure 1213, or the second guide surface may be provided only in the third connecting structure 1231, or the first guide surface may be provided in the first connecting structure 1213 and the second guide surface may be provided in the third connecting structure 1231 at the same time. This application example does not impose specific restrictions on this.
[0089] Based on the operating mechanism 100 provided in the above example, please refer to... Figure 1 and Figure 2 The operating mechanism 100 also includes an elastic element 130 and a connecting rod, with the connecting rod mounted on the mounting bracket 110. The lever structure 120 also includes a connecting plate 124, which is fixedly connected between the first side plate 121 and the second side plate 122, and the connecting plate 124 is substantially perpendicular to the push plate 123. The connecting plate 124 is provided with a fifth connecting structure, one end of the elastic element 130 is connected to the fifth connecting structure, and the other end of the elastic element 130 is connected to the connecting rod.
[0090] The connecting rod can be directly installed on the mounting bracket 110, or it can be installed on the mounting bracket 110 through other structures.
[0091] There may be one elastic element 130, or there may be multiple elastic elements 130 spaced apart. The elastic element 130 may be a spring, a sheet, or other similar structure.
[0092] The connecting plate 124 is disposed between the first side plate 121 and the second side plate 122. The connecting plate 124 is basically perpendicular to the push plate 123, and the connecting plate 124 is basically perpendicular to the first side plate 121 and the second side plate 122.
[0093] The connecting plate 124 is basically perpendicular to the push plate 123. This can be understood as the angle between the connecting plate 124 and the push plate 123 being less than or equal to 95° and greater than or equal to 85°.
[0094] The connecting plate 124 is basically perpendicular to the first side plate 121 and the second side plate 122. It can be understood that the included angle between the connecting plate 124 and the first side plate 121 is less than or equal to 95° and greater than or equal to 85°, and at the same time, the included angle between the connecting plate 124 and the second side plate 122 is less than or equal to 95° and greater than or equal to 85°.
[0095] The connecting plate 124 is provided with a fifth connecting structure. The fifth connecting structure can be a hook, groove, protrusion or other structure provided on the connecting plate 124. The fifth connecting structure can also be a connecting structure between two adjacent hole-like structures, as long as the connection between the connecting plate 124 and the elastic member 130 can be achieved through the fifth connecting structure.
[0096] In this application example, the fifth connecting structure provided on the connecting plate 124 can be connected to the elastic element 130 in cooperation with the connecting rod. The elastic element 130 can provide energy to the operating mechanism 100, making the circuit breaker's opening or closing action more reliable and further ensuring the reliability of the circuit breaker's use.
[0097] Based on the operating mechanism 100 provided in the above example, the lever structure 120 also includes a reinforcing rib, one side of which is connected to the push plate 123, and the other side of which is connected to the connecting plate 124.
[0098] The cross-section of the reinforcing rib can be triangular. In this case, one side of the reinforcing rib is connected to the push plate 123, and the other side of the reinforcing rib is connected to the connecting plate 124. One apex of the reinforcing rib is located at the connection between the push plate 123 and the connecting plate 124.
[0099] The cross-section of the reinforcing rib can also be quadrilateral. In this case, one side of the reinforcing rib is connected to the push plate 123, and the other side of the reinforcing rib is connected to the connecting plate 124.
[0100] In this application example, by setting reinforcing ribs, a force can be applied to the connecting plate 124 and the pushing plate 123, reducing the deformation of the connecting plate 124 relative to the pushing plate 123, and at the same time reducing the deformation of the pushing plate 123 relative to the connecting plate 124, ensuring the strength of the lever structure 120, and further ensuring the reliability of the operating mechanism 100 and the circuit breaker.
[0101] Based on the operating mechanism 100 provided in the above example, please refer to... Figure 2 and Figure 3The first side plate 121 includes a first abutting surface 1211 and a second abutting surface 1212 disposed opposite to each other. The first limiting structure 1111 is the first limiting surface, and the first abutting surface 1211 can abut against the first limiting surface. The second limiting structure 1112 is the second limiting surface, and the second abutting surface 1212 can abut against the second limiting surface.
[0102] The first limiting surface and the second limiting surface can be set at an angle, or they can be roughly parallel, as long as the lever structure 120 can abut against the corresponding limiting surface when it is in different working states.
[0103] Compared to existing technologies where the limiting structure is a protruding structure, in this application example, the first limiting structure 1111 is a first limiting surface. The closing limit of the operating mechanism is achieved through the contact between the first abutment surface 1211 and the first limiting surface. This results in a larger contact area between the first abutment surface 1211 and the first limiting surface, thereby reducing the pressure between them and minimizing the deformation of the first side plate 121 and the first limiting surface. This further ensures the reliability of the lever structure 120 and the mounting bracket 110. The function of the second abutment surface 1212 in conjunction with the second limiting surface is similar to that of the first abutment surface 1211 in conjunction with the first limiting surface, and will not be described in detail here.
[0104] Based on the circuit breaker provided in the example above. Figure 4 Please refer to the structural diagram of the lever structure and mounting bracket provided as an example in this application. Figures 2-4 The first limiting surface and the second limiting surface are set at an angle, and a rotating groove is provided between the first limiting surface and the second limiting surface. The lever structure 120 includes a rotating part 125, at least a portion of the rotating part 125 extends into the rotating groove, and the rotating part 125 is rotatable within the rotating groove.
[0105] The angle formed by the first limiting surface and the second limiting surface can be a right angle or an acute angle. This application does not impose specific restrictions on this, as long as it is ensured that the circuit breaker is in the closed state when the lever mechanism abuts against the first limiting surface and the circuit breaker is in the open state when the lever mechanism abuts against the second limiting surface.
[0106] The contact surface between the rotating part 125 and the rotating groove is an arc surface to ensure that the rotating part 125 rotates more smoothly in the rotating groove and reduce the wear between the rotating part 125 and the rotating groove.
[0107] In this application example, since the rotating groove is located between the first limiting surface and the second limiting surface, and the first limiting surface and the second limiting surface are part of the mounting bracket 110, and the rotating part 125 is part of the lever structure 120, the rotating connection between the lever structure 120 and the mounting bracket 110 can be realized through the rotating connection between the rotating part 125 and the rotating groove.
[0108] Based on the operating mechanism 100 provided in the above example, please refer to... Figures 2-4 The mounting bracket 110 includes a first mounting plate 111 and a second mounting plate disposed opposite to each other. The rotating groove includes a first slot 1113 and a second slot, with the first slot 1113 located on the first mounting plate 111 and the second slot located on the second mounting plate. A first limiting rib 1114 is provided on the side of the first mounting plate facing away from the second mounting plate, and the position of the first limiting rib 1114 corresponds to the position of the first slot 1113. And / or, a second limiting rib is provided on the side of the second mounting plate facing away from the first mounting plate 111, and the position of the second limiting rib corresponds to the position of the second slot.
[0109] The rotating part 125 mentioned above may include a first rotating part 1251 and a second rotating part 1252. The first rotating part 1251 is disposed on the first side plate 121, and the second rotating part 1252 is disposed on the second side plate 122. The first rotating part 1251 extends into the first slot 1113 to realize the connection between the first side plate 121 and the first mounting plate 111, and the second rotating part 1252 extends into the second slot to realize the connection between the second side plate 122 and the second mounting plate.
[0110] In this example, the lever structure 120 extends into the first slot 1113 to connect the lever structure 120 to the mounting bracket 110. The first mounting plate 111 has a first limiting rib 1114 on the side opposite to the second mounting plate. The position of the first limiting rib 1114 corresponds to the position of the first slot 1113. Therefore, the first limiting rib 1114 can apply a force towards the second mounting plate to the lever structure 120, reducing the deformation of the lever structure 120 and further ensuring the reliability of the lever structure 120. The second slot and the second limiting rib have similar functions to the first slot 1113 and the first limiting rib 1114, and will not be described in detail here.
[0111] Finally, it should be noted that the above embodiments are merely specific implementations of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. An operating mechanism, characterized in that, include: The mounting bracket includes a first limiting structure and a second limiting structure that are positioned opposite to each other; A jumper is rotatably mounted on the mounting bracket; A lever structure is rotatably mounted on the mounting bracket. The lever structure can abut against the first limiting structure or the second limiting structure. The lever structure includes a push plate and a first side plate and a second side plate disposed opposite to each other. The push plate includes a first connecting surface and a second connecting surface disposed opposite to each other. The first connecting surface is fixedly connected to the first side plate, and the second connecting surface is fixedly connected to the second side plate. The push plate can drive the jump buckle to rotate relative to the mounting bracket.
2. The operating mechanism according to claim 1, characterized in that, The first connecting surface is provided with a first connecting structure, and the second connecting surface is provided with a second connecting structure; A third connecting structure is provided on the side of the first side plate facing the first connecting surface, and the third connecting structure is fixedly connected to the first connecting structure; The second side plate has a fourth connecting structure on the side facing the second connecting surface, and the fourth connecting structure is fixedly connected to the second connecting structure.
3. The operating mechanism according to claim 2, characterized in that, The first connecting structure is a groove structure, and the third connecting structure is a protrusion structure, with at least a portion of the protrusion structure extending into the groove structure; or... The first connecting structure is a protruding structure, and the third connecting structure is a groove structure, with at least a portion of the protruding structure extending into the groove structure.
4. The operating mechanism according to claim 3, characterized in that, The protruding structure is provided with a first guide surface, the inclination direction of which is adapted to the direction in which the protruding structure extends into the groove structure; and / or, The groove structure is provided with a second guide surface, and the inclination direction of the second guide surface is adapted to the direction in which the protrusion structure extends into the groove structure.
5. The operating mechanism according to claim 1, characterized in that, It also includes an elastic element and a connecting rod, the connecting rod being mounted on the mounting bracket; The lever structure also includes a connecting plate, which is fixedly connected between the first side plate and the second side plate, and the connecting plate connects the first side plate and the second side plate. The connecting plate is substantially perpendicular to the push plate. The connecting plate is provided with a fifth connecting structure, one end of the elastic element is connected to the fifth connecting structure, and the other end of the elastic element is connected to the connecting rod.
6. The operating mechanism according to claim 5, characterized in that, The lever structure also includes a reinforcing rib, one side of which is connected to the push plate and the other side of which is connected to the connecting plate.
7. The operating mechanism according to claim 1, characterized in that, The first side plate includes a first abutting surface and a second abutting surface disposed opposite to each other. The first limiting structure is the first limiting surface, and the first abutting surface can abut against the first limiting surface. The second limiting structure is the second limiting surface, and the second abutting surface can abut against the second limiting surface.
8. The operating mechanism according to claim 7, characterized in that, A rotating groove is provided between the first limiting surface and the second limiting surface; The lever structure includes a rotating part, at least a portion of which extends into the rotating groove, and the rotating part is rotatable within the rotating groove.
9. The operating mechanism according to claim 8, characterized in that, The mounting bracket includes a first mounting plate and a second mounting plate disposed opposite to each other, and the rotating groove includes a first sub-groove and a second sub-groove, the first sub-groove being disposed on the first mounting plate and the second sub-groove being disposed on the second mounting plate; The first mounting plate has a first limiting rib on the side opposite to the second mounting plate, and the position of the first limiting rib corresponds to the position of the first slot; and / or, the second mounting plate has a second limiting rib on the side opposite to the first mounting plate, and the position of the second limiting rib corresponds to the position of the second slot.
10. A circuit breaker, characterized in that, It includes a housing and an operating mechanism as described in any one of claims 1 to 9, wherein the operating mechanism is mounted on the housing.