Operating mechanism and circuit breaker
By designing a new structure of the operating mechanism in the leakage circuit breaker, including a vertically telescopic return spring and a laminated mechanism seat, the problem of the existing operating mechanism occupying too much thickness direction space is achieved, and more flexible internal zero is achieved Component layout reduces design difficulty.
Patent Information
- Application Number
- CN202421228583.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-05-31
AI Technical Summary
The operating mechanism of the existing leakage circuit breaker occupies a large installation space in the thickness direction, resulting in insufficient design space for other internal components and increasing the difficulty of space design layout.
An operating mechanism is designed, including a mounting base, a return spring and a mechanism seat. The expansion and contraction direction of the return spring is perpendicular to the thickness direction of the circuit breaker. The mechanism seat and the mounting base are arranged layered to reduce the operating mechanism in the thickness direction. Installation space.
By reducing the installation space in the thickness direction of the operating mechanism, more design space is provided to facilitate the layout of other components, reducing the difficulty of space design and layout of the circuit breaker.
Smart Images
Figure CN222483261U_ABST
Abstract
Description
Technical Field
[0001] The embodiments of the present application relate to the technical field of electrical components, and specifically to an operating mechanism and a circuit breaker. Background Art
[0002] A circuit breaker is a common electrical device used to protect the safety of electrical equipment. A circuit breaker with leakage protection function includes an operating mechanism and a switch handle that are connected to each other. The operating mechanism can transmit operating actions between the switch handle and other components of the circuit breaker so that the circuit breaker can complete the operation of cutting off the faulty circuit when a circuit fails.
[0003] Circuit breakers with leakage protection functions are also called leakage circuit breakers. Due to their own specifications and dimensions, their installation space in the thickness direction is extremely limited. The existing operating mechanism occupies a large installation space in the thickness direction of the leakage circuit breaker, which makes the design space of other components inside the leakage circuit breaker insufficient, making the spatial design layout of the leakage circuit breaker difficult. Utility Model Content
[0004] The present application provides an operating mechanism and a circuit breaker, which can reduce the installation space occupied by the operating mechanism in the thickness direction of the circuit breaker.
[0005] In a first aspect, the present application provides an operating mechanism, which is applied to a circuit breaker, and the operating mechanism includes a mounting seat, a reset spring and a mechanism seat. The mounting seat is provided with a first groove. The reset spring is installed in the first groove, and the first end of the reset spring contacts the groove wall of the first groove, and the expansion and contraction direction of the reset spring is perpendicular to the thickness direction of the circuit breaker. The mechanism seat is rotatably connected to the mounting seat, and the mechanism seat and the mounting seat are stacked. The mechanism seat is provided with a push portion. When the mechanism seat rotates in a first direction, the push portion can push the second end of the reset spring to store energy in the reset spring. When the mechanism seat rotates in a second direction, the reset spring releases energy, and the second end pushes the push portion to reset the mechanism seat, and the second direction is opposite to the first direction.
[0006] Through the above scheme, the reset spring is installed in the first groove, and the expansion and contraction direction of the reset spring is arranged perpendicular to the thickness direction of the circuit breaker, thereby reducing the installation space occupied by the reset spring in the thickness direction of the circuit breaker, thereby reducing the installation space occupied by the operating mechanism in the thickness direction.
[0007] In addition, the stacking arrangement of the mechanism seat and the mounting seat can reduce the installation space occupied by the mechanism seat and the mounting seat in the thickness direction of the circuit breaker, thereby reducing the installation space occupied by the operating mechanism in the thickness direction. The reduction of the installation space occupied by the operating mechanism in the thickness direction allows other components inside the circuit breaker to obtain more design space, thereby reducing the difficulty of the spatial design layout of the circuit breaker.
[0008] In a possible design, the diameter of the return spring is less than or equal to the depth of the first groove, and the return spring is entirely located in the first groove.
[0009] Through the above scheme, this arrangement enables the return spring to be located within the spatial range of the first groove, which not only prevents the return spring from occupying additional installation space to reduce the installation space occupied by the operating mechanism in the thickness direction, but also makes it difficult for the return spring to separate from the first groove during compression or resetting, thereby ensuring that the return spring maintains good position stability during operation.
[0010] In a possible design, a second groove is provided at a position of the mechanism seat opposite to the first groove, a part of the return spring is located in the first groove, and another part of the return spring is located in the second groove.
[0011] Through the above solution, the mutual cooperation between the first groove and the second groove enables the return spring to be located in the installation space jointly formed by the first groove and the second groove, avoiding the return spring from occupying additional installation space, thereby reducing the installation space occupied by the operating mechanism in the thickness direction.
[0012] In a possible design, in the thickness direction of the circuit breaker, the distance between the mechanism seat and the mounting seat is greater than or equal to a first threshold and less than or equal to a second threshold.
[0013] Through the above solution, the first threshold value can ensure that the distance between the mechanism seat and the mounting seat does not affect the relative rotation between the mechanism seat and the mounting seat. In the thickness direction of the circuit breaker, the second threshold value can make the distance between the mechanism seat and the mounting seat smaller, that is, the gap between the mechanism seat and the mounting seat can be approximately ignored, so that the installation space occupied by the mechanism seat and the mounting seat in the thickness direction is smaller, so as to reduce the installation space occupied by the operating mechanism in the thickness direction.
[0014] In a possible design, a first limiting column is provided on the groove wall of the first groove in the telescopic direction, and the first end of the reset spring is sleeved on the first limiting column.
[0015] Through the above solution, the first limiting column is arranged at a position, and the first end is arranged in contact with the groove wall of the first groove, so that the first end of the reset spring can always maintain a stable connection relationship with the first limiting column. The arrangement form in which the first end is sleeved on the first limiting column enables the first end of the reset spring to maintain good position stability, and the first end is not easily displaced during the compression or reset process of the reset spring.
[0016] In addition, the first limiting column facilitates the installation and positioning of the reset spring, reduces the difficulty of installation and maintenance of the reset spring, and reduces the difficulty of installation of the operating mechanism.
[0017] In a possible design, a limiting protrusion is provided on a side of the mechanism seat facing the mounting seat, the push portion is configured as the limiting protrusion, and the second end of the reset spring is sleeved on the limiting protrusion.
[0018] Through the above solution, the second end of the reset spring can always maintain a stable connection relationship with the limiting protrusion. The second end is sleeved on the limiting protrusion, so that the second end of the reset spring can maintain good position stability, and the second end is not easy to be displaced during the compression or reset of the reset spring. In addition, the limiting protrusion facilitates the installation and positioning of the reset spring, reduces the difficulty of installation and maintenance of the reset spring, and reduces the difficulty of installation of the operating mechanism.
[0019] In a possible design, a limiting groove is provided on a side of the mechanism seat facing the mounting seat, the push portion is configured as the limiting groove, and the second end of the return spring is located in the limiting groove.
[0020] Through the above solution, the second end of the reset spring can always maintain a stable connection relationship with the limiting groove. The second end is set on the limiting groove, so that the second end of the reset spring can maintain good position stability, and the second end is not easy to be displaced during the compression or reset of the reset spring. In addition, the limiting groove facilitates the installation and positioning of the reset spring, reduces the difficulty of installation and maintenance of the reset spring, and reduces the difficulty of installation of the operating mechanism.
[0021] In a possible design, the operating mechanism further includes a connecting rod and a tripping catch, the connecting rod includes a first section and a second section connected to each other, and a non-zero angle is formed between the first section and the second section. In the thickness direction of the circuit breaker, the tripping catch is located on a side of the mechanism seat away from the mounting seat, and the first section is located on a side of the tripping catch away from the mechanism seat. A third groove is provided on a side of the mechanism seat facing the tripping catch, and an end of the second section away from the first section passes through the tripping catch and is located in the third groove.
[0022] Through the above solution, the first section and the second section have a non-zero angle, so that the first section and the second section are connected to components in different directions by bending. The end of the second section away from the first section passes through the jump buckle, so that a stable connection is formed between the jump buckle and the connecting rod.
[0023] The third groove enables the end of the second section away from the first section to be accommodated in the mechanism seat, so as to avoid the connecting rod occupying additional installation space in the thickness direction, thereby reducing the installation space occupied by the operating mechanism in the thickness direction, increasing the design space of other components inside the circuit breaker, and reducing the difficulty of the spatial design layout of the circuit breaker.
[0024] In a second aspect, the present application provides a circuit breaker, comprising a housing and the operating mechanism of the first aspect, wherein the operating mechanism is disposed in the housing.
[0025] Through the above scheme, the housing can not only provide corresponding installation areas for many components including the operating mechanism to facilitate the production and assembly of the circuit breaker, but also protect the components inside the circuit breaker to reduce the degree of damage to the components caused by external force impact or external environmental pollution.
[0026] In a possible design, the circuit breaker further includes a tripping mechanism, which is linked to the mechanism seat. The tripping mechanism is located on one side of the mounting seat in the thickness direction of the circuit breaker, and the mechanism seat is located on the other side of the mounting seat in the thickness direction.
[0027] Through the above scheme, the tripping mechanism and the mechanism seat are respectively located on both sides of the thickness direction of the circuit breaker, so that the tripping mechanism and the operating mechanism jointly occupy the installation space in the thickness direction of the circuit breaker. As the installation space occupied by the operating mechanism in the thickness direction of the circuit breaker decreases, the tripping mechanism obtains more design space.
[0028] The beneficial effects of the circuit breaker provided in the second aspect and each possible design of the second aspect can refer to the beneficial effects brought about by the first aspect and each possible implementation method of the first aspect, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] Figure 1 A schematic diagram of the overall structure of a circuit breaker provided in an embodiment of the present application.
[0030] Figure 2 An explosion diagram of a circuit breaker provided in an embodiment of the present application.
[0031] Figure 3 A schematic diagram of the structure of a mounting base provided in an embodiment of the present application.
[0032] Figure 4 A schematic structural diagram of a mechanism seat provided in an embodiment of the present application at a first viewing angle.
[0033] Figure 5 A schematic structural diagram of a mechanism seat provided in an embodiment of the present application at a second viewing angle.
[0034] Figure 6 A schematic diagram of the assembly structure of an operating mechanism provided in an embodiment of the present application.
[0035] Figure 7 An exploded schematic diagram of an operating mechanism provided in an embodiment of the present application.
[0036] Figure 8 A schematic diagram of the structure of a jump button provided in an embodiment of the present application.
[0037] Fig. 9 A schematic diagram of the structure of a connecting rod provided in an embodiment of the present application.
[0038] Fig.10 A schematic diagram of the assembly of an operating mechanism and a housing provided in an embodiment of the present application.
[0039] Figure ID:
[0040] 1. Operating mechanism; 11. Mounting seat; 111. First slot; 1111. First limiting column; 112. Second spindle hole; 113. Linkage hole; 12. Reset spring; 121. First end; 122. Second end; 13. Mechanism seat; 131. Pushing portion; 132. Second slot; 133. Limiting protrusion; 134. Third slot; 135. First spindle hole; 136. Jumping buckle shaft; 137. Locking buckle shaft; 138. Linkage slot; 139. Indicator mark; 14. Connecting rod; 141. First section; 142. Second section; 15. Jumping buckle; 151. First connecting hole; 16. Switch handle; 17. Locking buckle; 2. Circuit breaker; 21. Housing; 211. Display window; 22. Tripping mechanism. DETAILED DESCRIPTION
[0041] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used in the specification of the application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification, claims and drawings of this application are intended to cover non-exclusive inclusions.
[0043] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase "embodiments" in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.
[0044] The term "and / or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists, A and B exist at the same time, and B exists. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.
[0045] The directional words appearing in the following description are all directions shown in the figures, and do not limit the specific structure of the current limiting module of the present application. For example, in the description of the present application, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.
[0046] In addition, the terms "first", "second", etc. in the specification and claims of this application or the above-mentioned 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.
[0047] In the description of the present application, unless otherwise specified, "plurality" means more than two (including two), and similarly, "multiple groups" means more than two groups (including two).
[0048] In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, the "connection" or "connection" of a mechanical structure can refer to a physical connection. For example, the physical connection can be a fixed connection, such as a fixed connection through a barrier, such as a fixed connection through a screw, bolt or other barrier; the physical connection can also be a detachable connection, such as a mutual snap connection or snap connection; the physical connection can also be an integral connection, such as welding, bonding or integral molding to form a connection for connection. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances. The "connection" or "connection" of a circuit structure can refer to not only a physical connection, but also an electrical connection or a signal connection. For example, it can be a direct connection, that is, a physical connection, or it can be indirectly connected through at least one intermediate element, as long as the circuit is connected, and it can also be the internal connection of two elements; the signal connection can refer to a signal connection through a media medium, such as a radio wave, in addition to a signal connection through a circuit. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0049] Figure 1 A schematic diagram of the overall structure of a circuit breaker provided in an embodiment of the present application is shown in FIG. Figure 2 An exploded schematic diagram of a circuit breaker provided in an embodiment of the present application.
[0050] like Figure 1 and Figure 2 As shown, the present application provides a circuit breaker 2, including a housing 21 and an operating mechanism 1, wherein the operating mechanism 1 is disposed in the housing 21. The thickness direction of the circuit breaker 2 is as follows: Figure 1 As shown in the z direction, the length direction of the circuit breaker 2 is as follows Figure 1 As shown in the y direction, the width direction of the circuit breaker 2 is as follows Figure 1 Shown in the x direction.
[0051] The circuit breaker 2 in this application mainly refers to the leakage circuit breaker in the low-voltage circuit breaker. The leakage circuit breaker is mainly used to cut off the protected power line when a leakage fault occurs in the equipment or when a person is electrocuted, and has overload and short-circuit protection functions. Limited by the specifications and dimensions of the leakage circuit breaker, the internal installation design layout of the leakage circuit breaker is relatively compact.
[0052] The housing 21 can not only provide a corresponding installation area for many components including the operating mechanism 1 to facilitate the production and assembly of the circuit breaker 2, but also protect the components inside the circuit breaker 2 to reduce the degree of damage to the components caused by external impact or external environmental pollution. The specific structural form of the operating mechanism 1 will be described in detail below and will not be expanded here.
[0053] In a possible design, the operating mechanism 1 includes a mechanism seat 13 and a mounting seat 11 , and the mechanism seat 13 is rotatably connected to the mounting seat 11 .
[0054] See also Figure 2 The circuit breaker 2 further includes a tripping mechanism 22, which is linked to the mechanism seat 13. The tripping mechanism 22 is located on one side of the mounting seat 11 in the thickness direction, and the mechanism seat 13 is located on the other side of the mounting seat 11 in the thickness direction.
[0055] Figure 3 A schematic diagram of the structure of a mounting base provided in an embodiment of the present application is shown in FIG. Figure 4 A schematic structural diagram of a mechanism seat provided in an embodiment of the present application at a first viewing angle.
[0056] In actual production applications, the tripping mechanism 22 and the mechanism seat 13 are connected via a transmission shaft to achieve the technical effect of the linkage between the tripping mechanism 22 and the mechanism seat 13. Figure 3 and Figure 4As shown, the mounting seat 11 is provided with a linkage hole 113, and the side of the mechanism seat 13 facing the mounting seat 11 is provided with a linkage groove 138. One end of the transmission shaft is transmission-connected with the tripping mechanism 22, and the other end passes through the linkage hole 113 and is inserted into the linkage groove 138.
[0057] The tripping mechanism 22 is an important component of the circuit breaker 2 and is a device mechanically connected to the circuit breaker 2 for releasing the holding mechanism and automatically disconnecting the circuit of the circuit breaker 2 .
[0058] The linkage arrangement of the tripping mechanism 22 and the mechanism seat 13 forms a linkage relationship between the tripping mechanism 22 and the operating mechanism 1. When the tripping mechanism 22 performs a tripping action, the operating mechanism 1 also performs a corresponding action to complete the tripping action of the tripping mechanism 22. At the same time, when the operating mechanism 1 performs a reset action, the tripping mechanism 22 also acts accordingly to achieve the reset action of the tripping mechanism 22.
[0059] The arrangement in which the tripping mechanism 22 and the mechanism seat 13 are respectively located on both sides of the thickness direction of the circuit breaker 2 makes the tripping mechanism 22 and the operating mechanism 1 jointly occupy a large amount of installation space in the thickness direction of the circuit breaker 2. Therefore, when the installation space in the thickness direction of the circuit breaker 2 cannot be changed, the installation spaces of the tripping mechanism 22 and the operating mechanism 1 are related, and if one of them is reduced, the other will increase.
[0060] The arrangement in which the tripping mechanism 22 and the mechanism seat 13 are respectively located on both sides of the thickness direction of the circuit breaker 2 makes the tripping mechanism 22 and the operating mechanism 1 jointly occupy the installation space in the thickness direction of the circuit breaker 2. As the installation space occupied by the operating mechanism 1 in the thickness direction of the circuit breaker 2 decreases, the tripping mechanism 22 obtains more design space.
[0061] Figure 5 A schematic diagram of the structure of a mechanism seat provided in an embodiment of the present application at a second viewing angle, Figure 6 A schematic diagram of an assembly structure of an operating mechanism provided in an embodiment of the present application is shown in FIG. Figure 7 An exploded schematic diagram of an operating mechanism provided in an embodiment of the present application.
[0062] like Figures 3 to 7 As shown, the present application provides an operating mechanism 1, which is applied to a circuit breaker 2, and includes a mounting seat 11, a reset spring 12, and a mechanism seat 13. The mounting seat 11 is provided with a first groove 111. The reset spring 12 is installed in the first groove 111, and the first end 121 of the reset spring 12 is in contact with the groove wall of the first groove 111, and the expansion and contraction direction of the reset spring 12 is perpendicular to the thickness direction of the circuit breaker 2. The mechanism seat 13 is rotatably connected to the mounting seat 11, and the mechanism seat 13 and the mounting seat 11 are stacked. The mechanism seat 13 is provided with a push portion 131.
[0063] When the mechanism seat 13 rotates in the first direction, the push portion 131 can push the second end 122 of the return spring 12 to store energy in the return spring 12. When the mechanism seat 13 rotates in the second direction, the return spring 12 releases energy, and the second end 122 pushes the push portion 131 to return the mechanism seat 13. The second direction is opposite to the first direction.
[0064] The mounting seat 11 can provide a mounting platform for other components of the operating mechanism 1 such as the return spring 12 and the mechanism seat 13 to facilitate the assembly of the operating mechanism 1 .
[0065] The return spring 12 may be a compression spring. When the compression spring is deformed by an external force, the deformation energy can be stored, so that the return spring 12 can store energy for resetting the operating mechanism 1 after being compressed.
[0066] The arrangement in which the expansion and contraction direction of the return spring 12 is perpendicular to the thickness direction of the circuit breaker 2 indicates that the return spring 12 is horizontally placed in the first groove 111. Compared with conventional torsion springs, the horizontal arrangement of the return spring 12 can reduce the installation space occupied by the return spring 12 in the thickness direction of the circuit breaker 2, thereby reducing the installation space occupied by the operating mechanism 1 in the thickness direction of the circuit breaker 2.
[0067] The first groove 111 may be a U-shaped groove, a V-shaped groove or other different groove types. The first groove 111 in the present application may be a U-shaped groove. The U-shaped groove better fits the shape of the return spring 12 , so that the return spring 12 can be better accommodated in the first groove 111 , reducing the risk of the return spring 12 slipping out of the first groove 111 .
[0068] The first groove 111 provides an installation space for the return spring 12 , facilitates the installation and positioning of the return spring 12 , and improves the installation accuracy and efficiency of the return spring 12 .
[0069] The rotational connection between the mechanism seat 13 and the mounting seat 11 may be a tight fit, a shaft connection, or the like.
[0070] In the present application, the mechanism seat 13 and the mounting seat 11 are connected via a transmission shaft, and both ends of the transmission shaft are tightly matched with the mechanism seat 13 and the mounting seat 11 respectively to achieve a rotational connection between the mechanism seat 13 and the mounting seat 11 .
[0071] The stacking direction of the mechanism seat 13 and the mounting seat 11 is consistent with the thickness direction of the circuit breaker 2 .
[0072] The stacked arrangement of the mechanism seat 13 and the mounting seat 11 can reduce the installation gap between the mechanism seat 13 and the mounting seat 11. Since the stacked arrangement direction of the mechanism seat 13 and the mounting seat 11 is the thickness direction of the circuit breaker 2, the installation space occupied by the mechanism seat 13 and the mounting seat 11 in the thickness direction of the circuit breaker 2 can be reduced, thereby reducing the installation space occupied by the operating mechanism 1 in the thickness direction of the circuit breaker 2.
[0073] During the rotation of the mechanism seat 13, the push portion 131 can maintain contact with the second end 122 of the return spring 12. The first end 121 of the return spring 12 is arranged in contact with the groove wall of the first groove 111, so that the two ends of the return spring 12 are respectively controlled and limited by the push portion 131 and the groove wall of the first groove 111, so that the return spring 12 maintains relative position stability during compression and return, and prevents the return spring 12 from being separated from the first groove 111.
[0074] like Figure 3 As shown, Figure 3 The direction a is the first direction, which is the movement direction along the first slot 111 and toward the first end 121 of the return spring 12 . Figure 3 The direction b is the second direction, which is the movement direction along the first slot 111 and toward the second end 122 of the return spring 12 .
[0075] In the embodiment of the present application, the reset spring 12 is installed in the first groove 111, and the telescopic direction of the reset spring 12 is arranged perpendicular to the thickness direction of the circuit breaker 2, indicating that the reset spring 12 is not telescopically arranged in the thickness direction of the circuit breaker 2, thereby reducing the installation space occupied by the reset spring 12 in the thickness direction of the circuit breaker 2, and further reducing the installation space occupied by the operating mechanism 1 in the thickness direction of the circuit breaker 2.
[0076] In addition, the stacking arrangement of the mechanism seat 13 and the mounting seat 11 can reduce the installation space occupied by the mechanism seat 13 and the mounting seat 11 in the thickness direction of the circuit breaker 2, thereby reducing the installation space occupied by the operating mechanism 1 in the thickness direction of the circuit breaker 2. The reduction of the installation space occupied by the operating mechanism 1 in the thickness direction of the circuit breaker 2 allows other components inside the circuit breaker 2 to obtain more design space, thereby reducing the difficulty of the spatial design layout of the circuit breaker 2.
[0077] In a possible design, the diameter of the return spring 12 is less than or equal to the depth of the first groove 111 , and the return spring 12 is entirely located in the first groove 111 .
[0078] This arrangement allows the entire reset spring 12 to be located within the spatial range of the first slot 111, which not only prevents the reset spring 12 from occupying additional installation space, thereby reducing the installation space occupied by the operating mechanism 1 in the thickness direction of the circuit breaker 2, but also prevents the reset spring 12 from easily separating from the first slot 111 during compression or resetting, thereby ensuring that the reset spring 12 maintains good position stability during operation.
[0079] In one possible design, see Figure 3 , Figure 4 and Figure 7 A second groove 132 is provided at a position of the mechanism seat 13 opposite to the first groove 111 , a portion of the return spring 12 is located in the first groove 111 , and another portion of the return spring 12 is located in the second groove 132 .
[0080] The mutual cooperation between the first groove 111 and the second groove 132 enables the reset spring 12 to be located in the installation space jointly formed by the first groove 111 and the second groove 132, thereby preventing the reset spring 12 from occupying additional installation space, thereby reducing the installation space occupied by the operating mechanism 1 in the thickness direction of the circuit breaker 2.
[0081] In a possible design, in the thickness direction of the circuit breaker 2 , the distance between the mechanism seat 13 and the mounting seat 11 is greater than or equal to a first threshold and less than or equal to a second threshold.
[0082] The first threshold and the second threshold can be selected according to the actual situation inside the circuit breaker 2 to reduce the installation space occupied by the mechanism seat 13 and the mounting seat 11 in the thickness direction of the circuit breaker 2. For example, the first threshold can be 0mm, 0.05mm, 0.1mm, 0.15mm, etc., and the second threshold can be 0.45mm, 0.5mm, 0.55mm, 0.6mm, etc. Under the premise of not affecting the normal use of the mechanism seat 13 and the mounting seat 11, the embodiment of the present application does not make specific restrictions on the values of the first threshold and the second threshold.
[0083] In an optional embodiment, in the thickness direction of the circuit breaker 2, the distance between the mechanism seat 13 and the mounting seat 11 may be greater than or equal to 0 mm and less than or equal to 0.5 mm, that is, the first threshold may be 0 mm and the second threshold may be 0.5 mm.
[0084] The first threshold value can ensure that the distance between the mechanism seat 13 and the mounting seat 11 does not affect the relative rotation between the mechanism seat 13 and the mounting seat 11. In the thickness direction of the circuit breaker 2, the distance between the mechanism seat 13 and the mounting seat 11 is small, that is, the gap between the mechanism seat 13 and the mounting seat 11 can be approximately ignored, indicating that the installation space occupied by the mechanism seat 13 and the mounting seat 11 in the thickness direction of the circuit breaker 2 is small, so as to reduce the installation space occupied by the operating mechanism 1 in the thickness direction of the circuit breaker 2.
[0085] In one possible design, Figure 3 As shown, a first limiting column 1111 is provided on the groove wall of the first groove 111 in the telescopic direction, and the first end 121 of the return spring 12 is sleeved on the first limiting column 1111 .
[0086] The arrangement position of the first limiting column 1111 and the arrangement form in which the first end 121 contacts the groove wall of the first groove 111 enable the first end 121 of the reset spring 12 to always maintain a stable connection relationship with the first limiting column 1111. The arrangement form in which the first end 121 is sleeved on the first limiting column 1111 enables the first end 121 of the reset spring 12 to maintain good position stability, and the first end 121 is not easily displaced during the compression or reset process of the reset spring 12.
[0087] In addition, the first limiting column 1111 facilitates the installation and positioning of the return spring 12 , reduces the difficulty of installation and maintenance of the return spring 12 , and reduces the difficulty of installation of the operating mechanism 1 .
[0088] In an alternative embodiment, see Figure 4 A limiting protrusion 133 is provided on one side of the mechanism seat 13 facing the mounting seat 11 , the push portion 131 is configured as the limiting protrusion 133 , and the second end 122 of the return spring 12 is sleeved on the limiting protrusion 133 .
[0089] The limiting protrusion 133 may be in a regular shape such as a cylinder, a prism, or a cone.
[0090] The second end 122 of the reset spring 12 can always maintain a stable connection with the limiting protrusion 133. The second end 122 is sleeved on the limiting protrusion 133, so that the second end 122 of the reset spring 12 can maintain good position stability, and the second end 122 is not easy to be displaced during the compression or reset process of the reset spring 12. In addition, the limiting protrusion 133 facilitates the installation and positioning of the reset spring 12, reduces the difficulty of the installation and maintenance of the reset spring 12, and reduces the installation difficulty of the operating mechanism 1.
[0091] In an optional embodiment, a limiting groove (not shown in the figure) is provided on the side of the mechanism seat 13 facing the mounting seat 11, the push portion 131 is configured as a limiting groove, and the second end 122 of the return spring 12 is located in the limiting groove.
[0092] The limiting groove may be a U-shaped groove, a V-shaped groove, etc. The limiting groove in the present application may be a U-shaped groove, so that the limiting groove and the second end 122 fit better, increase the contact area between the limiting groove and the second end 122, and make it difficult for the second end 122 to be displaced in the limiting groove.
[0093] The second end 122 of the reset spring 12 can always maintain a stable connection with the limiting groove. The second end 122 is sleeved on the limiting groove, so that the second end 122 of the reset spring 12 can maintain good position stability, and the second end 122 is not easy to be displaced during the compression or reset process of the reset spring 12. In addition, the limiting groove facilitates the installation and positioning of the reset spring 12, reduces the difficulty of the installation and maintenance of the reset spring 12, and reduces the installation difficulty of the operating mechanism 1.
[0094] Figure 8 A schematic diagram of a jump button structure provided in an embodiment of the present application is shown in FIG. Fig. 9 A schematic diagram of the structure of a connecting rod provided in an embodiment of the present application.
[0095] In one possible design, Figures 5 to 9 As shown, the operating mechanism 1 further includes a connecting rod 14 and a jumper 15. The connecting rod 14 includes a first section 141 and a second section 142 connected to each other. A non-zero angle is formed between the first section 141 and the second section 142.
[0096] In the thickness direction, the jumper 15 is located on a side of the mechanism base 13 away from the mounting base 11 , and the first section 141 is located on a side of the jumper 15 away from the mechanism base 13 .
[0097] A third slot 134 is formed on one side of the mechanism base 13 facing the jumper 15 . The end of the second section 142 away from the first section 141 passes through the jumper 15 and is located in the third slot 134 .
[0098] The non-zero angle between the first segment 141 and the second segment 142 may be a right angle or an obtuse angle, such as 90°, 95°, 100°, etc. In the present application, the non-zero angle between the first segment 141 and the second segment 142 may be a right angle, that is, the non-zero angle is 90°.
[0099] When the non-zero angle is a right angle, the first section 141 and the second section 142 are perpendicular to each other, so that the force applied to the first section 141 is not likely to generate a component force at an angle with the second section 142, and the second section 142 is not likely to slip when being installed, which facilitates the installation of the end of the second section 142 away from the first section 141, thereby improving the installation efficiency of the operating mechanism 1.
[0100] The first section 141 and the second section 142 have a non-zero angle between them, so that the first section 141 and the second section 142 are connected to components in different directions by bending. The end of the second section 142 away from the first section 141 passes through the jump buckle 15, so that a stable connection is formed between the jump buckle 15 and the connecting rod 14.
[0101] The third groove 134 enables the end of the second section 142 away from the first section 141 to be accommodated in the mechanism seat 13, so as to avoid the connecting rod 14 occupying additional installation space in the thickness direction, thereby reducing the installation space occupied by the operating mechanism 1 in the thickness direction of the circuit breaker 2, increasing the design space of other components inside the circuit breaker 2, and reducing the difficulty of the spatial design layout of the circuit breaker 2.
[0102] In an alternative embodiment, see Figure 1 and Figure 5 An indicator mark 139 is provided on the side of the mechanism seat 13, and a display window 211 is provided on the housing 21. After the tripping mechanism 22 completes the tripping action, the indicator mark 139 rotates to the display window 211 to remind the operator that the circuit breaker 2 has a fault.
[0103] The display window 211 is located on a side of the housing 21 facing the operator, so that the operator can obtain information in the display window 211 in a timely manner.
[0104] The indicator mark 139 may be a color mark, a symbol mark, etc. In the present application, the indicator mark 139 may be a red mark, so that the operator can obtain the fault status information of the circuit breaker 2 intuitively and eye-catchingly according to the indicator mark 139 .
[0105] For ease of understanding, the following Figures 3 to 10 The action process of the operating mechanism 1 provided in the embodiment of the present application is described below.
[0106] Fig.10 A schematic diagram of the assembly of an operating mechanism and a housing provided in an embodiment of the present application.
[0107] In a possible design, the operating mechanism 1 further includes a switch handle 16, a lock 17, a main shaft (not shown in the figure) and a linkage shaft (not shown in the figure), the mechanism seat 13 is further provided with a first main shaft hole 135, a jumper shaft 136 and a lock shaft 137, the jumper 15 is provided with a first connecting hole 151, the lock 17 is provided with a second connecting hole 171, and the mounting seat 11 is further provided with a second main shaft hole 112. Among them, the lock shaft 137 is a hollow structure.
[0108] The switch handle 16 is connected to the second section 142 of the connecting rod 14, the lock 17 is located on the side of the mechanism seat 13 away from the mounting seat 11, the tripping shaft 136 is inserted into the first connecting hole 151, one end of the main shaft passes through the first main shaft hole 135, the lock shaft 137 and the second connecting hole 171 in sequence and is tightly matched with the first main shaft hole 135, and the other end of the main shaft passes through the second main shaft hole 112 and is tightly matched with the second main shaft hole 112, so that the mechanism seat 13 and the mounting seat 11 are linked, the mechanism seat 13 and the tripping shaft 15 are linked, and the mechanism seat 13 and the lock 17 are linked. When the circuit breaker 2 is normal, the lock 17 and the tripping shaft 15 are locked with each other.
[0109] The tripping mechanism 22 and the mechanism seat 13 are connected by a linkage shaft to achieve the technical effect of the linkage between the tripping mechanism 22 and the mechanism seat 13. Specifically, the mounting seat 11 is provided with a linkage hole 113, and the mechanism seat 13 is provided with a linkage groove 138. One end of the linkage shaft is transmission-connected with the tripping mechanism 22, and the other end passes through the linkage hole 113 and is inserted into the linkage groove 138.
[0110] When the circuit breaker 2 trips, the tripping mechanism 22 performs a tripping action, and the mechanism seat 13 rotates relative to the mounting seat 11 under the drive of the linkage shaft. As the mechanism seat 13 rotates, the reset spring 12 is compressed under the action of the push portion 131 to store energy. The tripping buckle 15 rotates under the drive of the tripping buckle rotating shaft 136, and the lock buckle 17 rotates under the drive of the lock buckle rotating shaft 137, that is, the tripping buckle 15 and the lock buckle 17 also rotate relative to the mounting seat 11, so that the lock buckle 17 is separated from the tripping buckle 15, and the tripping mechanism 22 finally completes the tripping action.
[0111] When the circuit breaker 2 is reset after tripping, the reset spring 12 is reset and releases energy, and the push portion 131 rotates toward the reset position under the action of the reset spring 12, that is, the mounting seat 11 rotates toward the reset position. The trip buckle 15 rotates under the drive of the trip buckle rotating shaft 136, and the lock buckle 17 rotates under the drive of the lock buckle rotating shaft 137, that is, the trip buckle 15 and the lock buckle 17 also rotate relative to the mounting seat 11, so that the lock buckle 17 and the trip buckle 15 are locked, and the operating mechanism 1 finally completes the reset action.
Claims
1. An operating mechanism, applied to a circuit breaker, characterized in that: include: A mounting seat having a first groove; A return spring is installed in the first groove, a first end of the return spring is in contact with a groove wall of the first groove, and a telescopic direction of the return spring is perpendicular to a thickness direction of the circuit breaker; A mechanism seat is rotatably connected to the mounting seat, the mechanism seat and the mounting seat are stacked; the mechanism seat is provided with a push portion; When the mechanism seat rotates in the first direction, the push portion can push the second end of the return spring to allow the return spring to store energy; When the mechanism seat rotates in a second direction, the reset spring releases energy, and the second end pushes against the pushing portion to reset the mechanism seat, and the second direction is opposite to the first direction.
2. The operating mechanism according to claim 1, characterized in that: The diameter of the return spring is less than or equal to the depth of the first groove, and the return spring is entirely located in the first groove.
3. The operating mechanism according to claim 1, characterized in that: A second groove is provided at a position of the mechanism seat opposite to the first groove, a part of the return spring is located in the first groove, and another part of the return spring is located in the second groove.
4. The operating mechanism according to claim 3, characterized in that: In the thickness direction, the distance between the mechanism seat and the mounting seat is greater than or equal to a first threshold and less than or equal to a second threshold.
5. The operating mechanism according to any one of claims 1 to 4, characterized in that: A first limiting column is provided on the groove wall of the first groove in the telescopic direction, and the first end of the reset spring is sleeved on the first limiting column.
6. The operating mechanism according to claim 5, characterized in that: A limiting protrusion is provided on one side of the mechanism seat facing the mounting seat, the push portion is configured as the limiting protrusion, and the second end of the reset spring is sleeved on the limiting protrusion.
7. The operating mechanism according to claim 5, characterized in that: A limiting groove is provided on one side of the mechanism seat facing the mounting seat, the push portion is configured as the limiting groove, and the second end of the return spring is located in the limiting groove.
8. The operating mechanism according to any one of claims 1 to 4, characterized in that: The operating mechanism further comprises a connecting rod and a jumper, wherein the connecting rod comprises a first section and a second section connected to each other, and a non-zero angle is formed between the first section and the second section; In the thickness direction, the jump buckle is located on a side of the mechanism seat away from the mounting seat, and the first section is located on a side of the jump buckle away from the mechanism seat; A third slot is provided on a side of the mechanism seat facing the jump buckle, and an end of the second section away from the first section passes through the jump buckle and is located in the third slot.
9. A circuit breaker, characterized in that: It comprises a shell and an operating mechanism according to any one of claims 1 to 8, wherein the operating mechanism is arranged in the shell.
10. The circuit breaker according to claim 9, characterized in that The circuit breaker also includes a tripping mechanism, which is linked to the mechanism seat; The tripping mechanism is located on one side of the mounting seat in the thickness direction, and the mechanism seat is located on the other side of the mounting seat in the thickness direction.