Circuit breaker

Abstract

The utility model provides a circuit breaker, and relates to the technical field of electrical equipment.The circuit breaker comprises a release assembly and a connecting piece, and the release assembly comprises a support and a coil framework which are connected with each other; the connecting piece is connected to a shell of the circuit breaker, at least part of the connecting piece is arranged between the support and the coil framework, and the connecting piece abuts against the support and the coil framework. In the assembling process of the circuit breaker, only the support and the coil framework need to be assembled according to the structure, the connecting piece can be clamped between the connecting piece and the coil framework, fixing between the tripper assembly and the connecting piece is achieved, extra steps are not needed to assemble the tripper assembly and the shell of the circuit breaker, and the assembling efficiency of the circuit breaker is improved. Therefore, the assembling steps of the circuit breaker are simplified, the production efficiency of the circuit breaker is improved, and the production cost of the circuit breaker is reduced.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of electrical equipment, and in particular, to a circuit breaker. Background Art

[0002] A circuit breaker is a switching device that can close, carry and interrupt current under normal circuit conditions, and can close, carry and interrupt current under abnormal circuit conditions within a specified time.

[0003] The release assembly is generally installed in the casing of the circuit breaker and is mechanically connected to the circuit breaker. When the circuit where the circuit breaker is located is abnormal, the release assembly is actuated, thereby forcibly disconnecting the internal circuit of the circuit breaker, and then disconnecting the circuit where the circuit breaker is located, thereby providing protection against electric shock and leakage.

[0004] At present, when assembling the various components of a circuit breaker, the trip unit assembly is generally assembled first, and then the assembled trip unit assembly is fixed to the housing of the circuit breaker by screws. The entire assembly process is cumbersome and the production efficiency is low. Utility Model Content

[0005] In view of the above problems, an embodiment of the present application provides a circuit breaker, which can simplify the assembly steps of the circuit breaker and improve the production efficiency of the circuit breaker.

[0006] According to one aspect of an embodiment of the present application, a circuit breaker is provided, comprising a trip assembly and a connector, wherein the trip assembly comprises a bracket and a coil frame connected to each other; the connector is connected to the housing of the circuit breaker, the connector is at least partially disposed between the bracket and the coil frame, and the connector abuts against the bracket and the coil frame respectively.

[0007] By adopting the above scheme, the bracket is used to install the coil skeleton. Since the connecting piece is connected to the outer shell of the circuit breaker, the release assembly is connected to the connecting piece, so that the release assembly and the outer shell can be relatively fixed. The connecting piece is at least partially arranged between the bracket and the coil skeleton, and the connecting piece is respectively abutted against the bracket and the coil skeleton. It can be seen that as long as the relative position between the bracket and the coil skeleton remains unchanged, the position of the bracket and the coil skeleton relative to the connecting piece remains unchanged. In the process of assembling the circuit breaker, it is only necessary to assemble the bracket and the coil skeleton according to the above structure, and the connecting piece can be clamped between the connecting piece and the coil skeleton to achieve fixation between the release assembly and the connecting piece, and no additional steps are required to assemble the release assembly and the outer shell of the circuit breaker, thereby simplifying the assembly steps of the circuit breaker, improving the production efficiency of the circuit breaker, and reducing the production cost of the circuit breaker.

[0008] In some embodiments, a limiting groove is provided on one side of the connecting member close to the bracket, and the bracket is at least partially located in the limiting groove.

[0009] By adopting the above solution, the limiting groove can limit the installation position of the bracket, and further limit the installation position of the coil skeleton, so that the coil skeleton can be quickly positioned during the installation process, thereby improving the assembly efficiency of the circuit breaker.

[0010] In some embodiments, the connecting member includes a first side wall and a second side wall, and the first side wall and the second side wall are located on opposite sides of the limiting groove along a first direction, and the first direction is perpendicular to the direction in which the bracket and the coil frame are relatively arranged; the part of the bracket located in the limiting groove abuts against the first side wall and the second side wall respectively.

[0011] By adopting the above solution, since the part of the bracket located in the limiting groove abuts against the first side wall and the second side wall respectively, the limiting groove can further limit the position of the bracket, preventing the bracket from being displaced along the first direction during use, thereby improving the stability of the structure and performance of the circuit breaker.

[0012] In some embodiments, a first rib is provided on the first side wall, and a second rib is provided on the second side wall; the portion of the bracket located in the limiting groove abuts against the first side wall through the first rib, and the portion of the bracket located in the limiting groove abuts against the second side wall through the second rib.

[0013] By adopting the above solution, since the contact area between the bracket and the first convex rib and the second convex rib is small, it is prevented that the bracket is difficult to be installed in the limiting groove due to the contact area between the bracket and the first side wall and / or the second side wall is too large, which makes it difficult to assemble the circuit breaker.

[0014] In some embodiments, the first rib and the second rib are respectively provided with chamfers at ends away from the coil frame.

[0015] The chamfer arrangement facilitates the installation of the bracket into the limiting groove from the side away from the coil frame, thereby improving the assembly efficiency of the circuit breaker.

[0016] In some embodiments, the bracket includes a mounting plate, which extends from one side of the connecting member to the other side and is connected to the coil frame.

[0017] By adopting the above solution, the connection reliability between the bracket and the coil frame is high. During the connection process between the bracket and the coil frame, the connection piece can be clamped between the bracket and the coil frame at the same time, thereby improving the assembly efficiency of the circuit breaker.

[0018] In some embodiments, the mounting plate extends from an edge of the connector to the other side of the connector, and the mounting plate abuts against the edge of the connector.

[0019] By adopting the above solution, there is no need to set a structure for the mounting plate to pass through the connector, so that the structure of the connector is simple. The mounting plate abuts against the edge of the connector, which can limit the connector to the mounting plate in at least one direction, and the structural stability of the circuit breaker is higher.

[0020] In some embodiments, a slot is provided on the connecting member, and the mounting plate extends through the slot to the other side of the connecting member.

[0021] By adopting the above solution, the slot wall of the slot can limit the position of the mounting plate in multiple directions, so that the structural stability of the circuit breaker is further increased.

[0022] In some embodiments, two mounting plates are provided, and the coil skeleton is sandwiched between the two mounting plates.

[0023] By adopting the above solution, the coil skeleton is not easily displaced relative to the bracket, thereby improving the structural stability of the circuit breaker.

[0024] In some embodiments, a mounting protrusion is provided on one side of the mounting plate close to the coil frame, and a mounting hole is provided on one side of the coil frame close to the mounting plate, and the mounting protrusion is located in the mounting hole.

[0025] By adopting the above scheme, the mounting protrusion cooperates with the mounting hole, which can not only limit the displacement of the coil skeleton in the direction in which the two mounting plates are relatively set, but also limit the displacement of the coil skeleton in the radial direction of the mounting hole, and the installation between the coil skeleton and the bracket is more stable.

[0026] In some embodiments, an inclined groove is provided on the coil frame, the inclined groove and the mounting hole are located on the same side of the coil frame, and the inclined groove is located on the side of the mounting hole close to the connecting piece, and the depth of the inclined groove gradually decreases from the end away from the mounting hole to the end close to the mounting hole.

[0027] When the bracket and the coil frame are assembled, the mounting protrusion on the mounting plate can be placed at the end of the inclined groove away from the mounting hole. The depth of the inclined groove here is deeper, which is convenient for the mounting protrusion to be placed in the inclined groove. In the process of the coil frame approaching the bracket, the mounting protrusion slides along the inclined groove in the direction close to the mounting hole, and is pushed by the bottom of the inclined groove to gradually increase the deformation of the mounting plate. Finally, the mounting protrusion slides out of the inclined groove. As the coil frame and the bracket get closer, the mounting protrusion enters the mounting hole, and the elastic deformation force of the mounting plate is released, and the assembly of the coil frame and the bracket is completed. In the above process, the setting of the inclined groove can not only realize the positioning between the bracket and the coil frame, but also play a guiding role, so that the mounting protrusion enters the mounting hole along a specific path. In addition, the inclined groove allows the mounting plate to be gradually deformed instead of undergoing a sudden change in shape, which prevents damage to the mounting plate and is conducive to the rapid installation of the bracket and the coil frame.

[0028] The embodiment of the present application arranges a connecting piece in the shell, and at least partially arranges the connecting piece between the bracket and the coil frame, and makes the connecting piece abut against the bracket and the coil frame respectively, so that during the assembly of the circuit breaker, it is only necessary to assemble the bracket and the coil frame according to the above structure, and the connecting piece can be clamped between the connecting piece and the coil frame to achieve fixation between the release assembly and the connecting piece, and no additional steps are required to assemble the release assembly and the shell of the circuit breaker, thereby simplifying the assembly steps of the circuit breaker, improving the production efficiency of the circuit breaker, and reducing the production cost of the circuit breaker.

[0029] The above description is only an overview of the technical solution of the embodiment of the present application. In order to more clearly understand the technical means of the embodiment of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the embodiment of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0031] Figure 1 A schematic structural diagram of a release assembly and a connector assembly provided in an embodiment of the present application.

[0032] Figure 2 A schematic diagram of the exploded structure of a release assembly and a connector provided in an embodiment of the present application.

[0033] Figure 3 A schematic diagram of the structure of a connector provided in an embodiment of the present application.

[0034] Figure 4 This is a schematic diagram of a bracket provided in an embodiment of the present application at a first viewing angle.

[0035] Figure 5 This is a schematic diagram of a bracket provided in an embodiment of the present application at a second viewing angle.

[0036] Figure 6 This is a schematic diagram of a coil skeleton provided in an embodiment of the present application at a first viewing angle.

[0037] Figure 7 This is a schematic diagram of a coil skeleton provided in an embodiment of the present application at a second viewing angle.

[0038] 100, release assembly; 110, coil skeleton; 111, mounting hole; 112, inclined groove; 120, bracket; 121, mounting plate; 122, mounting protrusion; 200, connecting piece; 210, limiting groove; 220, first side wall; 221, first convex rib; 230, second side wall; 231, second convex rib; 240, chamfer; 250, slot; X, first direction. DETAILED DESCRIPTION

[0039] 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.

[0040] 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.

[0041] The terms "comprising" and "having" and any variations thereof in the specification, claims and drawings of this application are intended to cover but not exclude other contents. The word "a" or "an" does not exclude the presence of a plurality.

[0042] 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.

[0043] The directional words appearing in the following description are all directions shown in the drawings, and do not limit the specific structure of the circuit breaker 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", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation to the present application.

[0044] In addition, the expressions of the indicated directions such as the X direction, the Y direction and the Z direction used to illustrate the operation and construction of the components of the circuit breaker of this embodiment are not absolute but relative, and although these indications are appropriate when the components of the circuit breaker are in the positions shown in the figures, when these positions are changed, these directions should be interpreted differently to correspond to the changes.

[0045] 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.

[0046] 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).

[0047] 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 may refer to a physical connection. For example, the physical connection may be a fixed connection, such as a fixed connection through a fixing member, such as a fixed connection through a screw, bolt or other fixing member; the physical connection may also be a detachable connection, such as a mutual snap connection or snap connection; the physical connection may also be an integral connection, such as welding, bonding or integral molding to form a connection for connection. The "connection" or "connection" of a circuit structure may refer to an electrical connection or a signal connection in addition to a physical connection. For example, it may be a direct connection, that is, a physical connection, or it may be an indirect connection through at least one intermediate element, as long as the circuit is connected, or it may be the internal connection of two elements; the signal connection may 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.

[0048] Please refer to Figure 1 and Figure 2 , Figure 1 A schematic diagram of the structure of a release assembly and a connector assembly provided in an embodiment of the present application, Figure 2 This is a schematic diagram of the exploded structure of a release assembly and a connector provided in an embodiment of the present application. Figure 1 and Figure 2 As shown, an embodiment of the present application provides a circuit breaker, which includes a release assembly 100 and a connector 200, wherein the release assembly 100 includes a bracket 120 and a coil skeleton 110 that are connected to each other; the connector 200 is connected to a housing of the circuit breaker (not shown in the figure), and the connector 200 is at least partially disposed between the bracket 120 and the coil skeleton 110, and the connector 200 is respectively abutted against the bracket 120 and the coil skeleton 110.

[0049] The release assembly 100 is similar to the release assembly in the related art. In addition to the bracket 120 and the coil frame 110 listed in the above structure, it should also include a coil wound on the coil frame 110, and a moving iron core and a static iron core arranged in the inner hole of the coil frame 110. The coil frame 110 is roughly columnar. When an abnormality occurs in the circuit where the circuit breaker is located, the current on the coil changes accordingly, thereby generating a magnetic field, so that the static iron core pushes the moving iron core in a direction away from the static iron core, thereby driving the trip structure in the circuit breaker to actuate and disconnect the circuit of the circuit breaker.

[0050] The bracket 120 is used to fix the coil skeleton 110 in the casing of the circuit breaker. In the related art, screws are generally used to connect the bracket 120 to the casing of the circuit breaker. In the present application, a connecting piece 200 is arranged in the casing, and the connecting piece 200 is at least partially arranged between the bracket 120 and the coil skeleton 110, and the connecting piece 200 is respectively abutted against the bracket 120 and the coil skeleton 110, so that the connecting piece 200 is clamped between the bracket 120 and the coil skeleton 110, thereby realizing the connection between the bracket 120 and the connecting piece 200, and indirectly realizing the connection between the bracket 120 and the casing.

[0051] The connection between the connector 200 and the housing of the circuit breaker may be integrally formed, welded or inlaid, and the embodiments of the present application do not limit the connection method between the connector 200 and the housing.

[0052] During the assembly process of the circuit breaker of the above structure, it is only necessary to install the bracket 120 and the coil skeleton 110 at the corresponding positions on both sides of the connecting piece 200, and connect the bracket 120 and the coil skeleton 110, so that the connecting piece 200 can be clamped between the bracket 120 and the coil skeleton 110 to achieve the fixation between the release assembly 100 and the connecting piece 200. No additional steps are required to assemble the release assembly 100 and the housing of the circuit breaker, thereby simplifying the assembly steps of the circuit breaker, improving the production efficiency of the circuit breaker, and reducing the production cost of the circuit breaker.

[0053] The structure of the connecting member 200 can be various, for example, it can be a flat plate, a bridge type, etc. There can be multiple abutting surfaces on the connecting member 200 for abutting against the bracket 120 and the coil skeleton 110 respectively.

[0054] Optionally, the connector 200 and the coil frame 110 and the connector 200 and the bracket 120 can be in surface contact, thereby increasing the friction of the abutment surface, thereby reducing the probability that the connection between the bracket 120 and the coil frame 110 becomes loose and causes the position of the release assembly 100 on the connector 200 to change.

[0055] Please continue to refer to Figure 1 and Figure 2 In some embodiments, a limiting groove 210 is provided on one side of the connecting member 200 close to the bracket 120 , and the bracket 120 is at least partially located in the limiting groove 210 .

[0056] During the assembly process of the circuit breaker, the installation position of the bracket 120 can be determined according to the position of the limiting groove 210, and the bracket 120 can be positioned quickly, thereby improving the assembly efficiency of the circuit breaker.

[0057] During use of the circuit breaker, the limiting groove 210 can limit the position of the trip assembly 100 to prevent the trip assembly 100 from being displaced significantly and failing to trip the circuit breaker within a specified time.

[0058] Please refer to Figure 3 , Figure 3 A schematic diagram of a connector structure provided in an embodiment of the present application is shown in FIG. Figure 3 As shown, in some embodiments, the connecting member 200 includes a first side wall 220 and a second side wall 230, and the first side wall 220 and the second side wall 230 are located on opposite sides of the limiting groove 210 along a first direction X, and the first direction X is perpendicular to the direction in which the bracket 120 and the coil skeleton 110 are relatively arranged; the portion of the bracket 120 located in the limiting groove 210 is respectively abutted against the first side wall 220 and the second side wall 230.

[0059] The first side wall 220 and the second side wall 230 can be two of the walls that enclose the limiting groove 210. When the portion of the bracket 120 located in the limiting groove 210 is respectively abutted against the first side wall 220 and the second side wall 230, the first side wall 220 and the second side wall 230 can clamp the bracket 120 from opposite sides of the bracket 120, further limit the position of the bracket 120, prevent the bracket 120 from moving along the first direction X during use, and improve the stability of the structure and performance of the circuit breaker.

[0060] When the limiting groove 210 is provided, during the process of installing the bracket 120 into the limiting groove 210, before the bracket 120 is installed in place, the bracket 120 is often already in contact with the first side wall 220 and the second side wall 230. Under the action of friction, a large force needs to be applied to install the bracket 120 in place.

[0061] Taking the above into consideration, combined with Figure 1 , Figure 2 and Figure 3 In some embodiments, a first rib 221 is provided on the first side wall 220, and a second rib 231 is provided on the second side wall 230; the portion of the bracket 120 located in the limiting groove 210 abuts against the first side wall 220 through the first rib 221, and the portion of the bracket 120 located in the limiting groove 210 abuts against the second side wall 230 through the second rib 231.

[0062] The contact area between the first rib 221 and the bracket 120 is smaller than the contact area between the first side wall 220 and the bracket 120. Similarly, the contact area between the second rib 231 and the bracket 120 is smaller than the contact area between the second side wall 230 and the bracket 120. In this case, the friction force of the bracket 120 during installation is greatly reduced, and the assembly of the circuit breaker is simpler and faster. In addition, the first rib 221 and the second rib 231 can also play a role in clamping the bracket 120 and limiting the position of the bracket 120.

[0063] Please continue to refer to Figure 3 In some embodiments, the first rib 221 and the second rib 231 are respectively provided with chamfers 240 at their ends away from the coil frame 110 .

[0064] The chamfer 240 may be a rounded corner or a beveled corner, which is not limited in the embodiment of the present application.

[0065] The chamfer 240 facilitates the installation of the bracket 120 into the limiting groove 210 from the side away from the coil frame 110, thereby improving the assembly efficiency of the circuit breaker.

[0066] It is understandable that providing a chamfer 240 only at the end of the first rib 221 away from the coil frame 110, or providing a chamfer 240 only at the end of the second rib 231 away from the coil frame 110, can facilitate, to a certain extent, the installation of the bracket 120 into the limiting groove 210 from the side away from the coil frame 110, thereby improving the assembly efficiency of the circuit breaker.

[0067] like Figure 1 and Figure 2 As shown, in some embodiments, the bracket 120 includes a mounting plate 121 , which extends from one side of the connecting member 200 to the other side and is connected to the coil frame 110 .

[0068] The number of the mounting plates 121 can be one or more, and the mounting plates 121 can be a straight plate or a curved plate, which is not limited in the embodiment of the present application.

[0069] When assembling the circuit breaker, the mounting plate 121 is extended to the side where the coil frame 110 is located, so that the mounting plate 121 is close to the coil frame 110 to facilitate close connection with the coil frame 110 and improve the firmness and reliability of the connection between the bracket 120 and the coil frame 110.

[0070] In addition, in the process of extending the mounting plate 121 from one side of the connecting member 200 to the other side, the connecting member 200 can be clamped between the bracket 120 and the coil frame 110, thereby improving the assembly efficiency of the circuit breaker.

[0071] Based on the above solution, there may be multiple ways for the mounting plate 121 to extend from one side of the connecting member 200 to the other side, two of which are described in detail below.

[0072] Please refer to Figure 1 and Figure 2 The mounting plate 121 on the right side, in some embodiments, extends from the edge of the connecting member 200 to the other side of the connecting member 200 , and the mounting plate 121 abuts against the edge of the connecting member 200 .

[0073] In the above solution, since the mounting plate 121 is arranged at the edge of the connecting member 200, there is no need to arrange a structure for the mounting plate 121 to pass through on the connecting member 200, which makes the structure of the connecting member 200 simple and easy to process.

[0074] The mounting plate 121 abuts against the edge of the connecting member 200 , so that the connecting member 200 can limit the mounting plate 121 in at least one direction, and the structural stability of the circuit breaker is higher.

[0075] Please refer to Figure 1 and Figure 2The mounting plate 121 on the left side, in other embodiments, a slot 250 is provided on the connecting member 200, and the mounting plate 121 extends through the slot 250 to the other side of the connecting member 200.

[0076] In the above solution, the slot wall of the slot 250 can limit the position of the mounting plate 121 in multiple directions, so that the structural stability of the circuit breaker is further increased.

[0077] Optionally, the slot wall of the slot 250 may not contact the mounting plate 121 at all, or the slot wall of the slot 250 may partially contact the mounting plate 121, or the slot wall circumference of the slot 250 may contact the mounting plate 121. The above various contact degrees can enable the slot 250 to restrict the position of the mounting plate 121 to varying degrees.

[0078] Please continue to refer to Figure 1 and Figure 2 In some other embodiments, the bracket 120 may include a plurality of mounting plates 121, some of the mounting plates 121 extend from the edge of the connector 200 to the other side of the connector 200, and the mounting plates 121 abut against the edge of the connector 200, and some of the mounting plates 121 extend through the slots 250 on the connector 200 to the other side of the connector 200.

[0079] In the above solution, the connector 200 can limit the position of the bracket 120 by limiting the positions of the plurality of mounting plates 121, and the structural stability of the circuit breaker is higher.

[0080] Please continue to refer to Figure 1 and Figure 2 In some embodiments, two mounting plates 121 are provided, and the coil skeleton 110 is sandwiched between the two mounting plates 121 .

[0081] The two mounting plates 121 can limit the position of the coil frame 110 from both ends, so that the coil frame 110 is not easily displaced relative to the bracket 120, thereby improving the structural stability of the circuit breaker.

[0082] Based on the above positional relationship, there can be many ways to connect the coil frame 110 and the bracket 120, for example, using screws to pass through the mounting plate 121 and connect to the coil frame 110, or two mounting plates 121 clamping the coil frame 110, or the mounting plate 121 and the coil frame 110 are mechanically clamped, etc.

[0083] For example, please refer to Figure 4 , Figure 5 , Figure 6 and Figure 7 . Figure 4 is a schematic diagram of a bracket 120 provided in an embodiment of the present application at a first viewing angle, Figure 5is a schematic diagram of a bracket 120 provided in an embodiment of the present application at a second viewing angle, Figure 6 is a schematic diagram of a coil skeleton 110 provided in an embodiment of the present application at a first viewing angle, Figure 7 This is a schematic diagram of a coil skeleton 110 provided in an embodiment of the present application at a second viewing angle.

[0084] like Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, in some embodiments, a mounting protrusion 122 is provided on a side of the mounting plate 121 close to the coil frame 110 , a mounting hole 111 is provided on a side of the coil frame 110 close to the mounting plate 121 , and the mounting protrusion 122 is located in the mounting hole 111 .

[0085] The mounting hole 111 may be a through hole or a blind hole. For example, the inner hole of the coil skeleton 110 may be configured as the mounting hole 111. In addition, the coil skeleton 110 may have one or more mounting holes 111 on one side close to any mounting plate 121. Accordingly, the mounting plate 121 may have one or more mounting protrusions 122 corresponding to the position and number of the corresponding mounting holes 111, and the embodiment of the present application does not limit this.

[0086] The shape of the mounting protrusion 122 may be the same as or different from the shape and size of the mounting hole 111 , as long as the mounting protrusion 122 can be inserted into the mounting hole 111 .

[0087] The structure in which the mounting protrusion 122 cooperates with the mounting hole 111 can not only limit the displacement of the coil skeleton 110 in the direction in which the two mounting plates 121 are relatively set, but also limit the displacement of the coil skeleton 110 in the radial direction of the mounting hole 111, thereby increasing the installation stability between the coil skeleton 110 and the bracket 120.

[0088] Optionally, see Figure 6 and Figure 7 The coil frame 110 is provided with an inclined groove 112, which is located on the same side of the coil frame 110 as the mounting hole 111, and is located on the side of the mounting hole 111 close to the connecting piece 200, and the depth of the inclined groove 112 gradually decreases from the end away from the mounting hole 111 to the end close to the mounting hole 111.

[0089] In other words, the depth of the inclined groove 112 decreases from deep to shallow in the direction away from the mounting hole 111 to close to the mounting hole 111. In view of the fact that the coil frame 110 is located between the two mounting plates 121, it can be seen that in order for the mounting protrusions 122 on the two mounting plates 121 to be inserted into the corresponding mounting holes 111 on the coil frame 110, the mounting plates 121 must be deformed to a certain extent before the mounting protrusions 122 enter the mounting holes 111. In the case where the inclined groove 112 is not provided, the deformation of the mounting plate 121 requires artificial external force, which is difficult to implement in the compact space inside the circuit breaker, seriously affecting the assembly efficiency of the circuit breaker.

[0090] After the inclined groove 112 is set, when the bracket 120 and the coil frame 110 are assembled, the mounting protrusion 122 on the mounting plate 121 can be placed at the end of the inclined groove 112 away from the mounting hole 111. The depth of the inclined groove 112 here is deeper, and the mounting plate 121 does not need to be deformed or undergoes a small deformation to put the mounting protrusion 122 into the inclined groove 112; in the process of the coil frame 110 approaching the bracket 120, the mounting protrusion 122 slides along the inclined groove 112 toward the mounting hole 111, and is pushed by the bottom of the inclined groove 112 to gradually aggravate the deformation of the mounting plate 121, and finally the mounting protrusion 122 slides out of the inclined groove 112, and as the coil frame 110 and the bracket 120 get closer, the mounting protrusion 122 enters the mounting hole 111, the elastic deformation force of the mounting plate 121 is released, and the assembly of the coil frame 110 and the bracket 120 is completed.

[0091] In the above process, the inclined groove 112 allows the mounting plate 121 to deform gradually instead of undergoing a sudden change in shape, which prevents damage to the mounting plate 121 and facilitates the rapid installation of the bracket 120 and the coil frame 110. In addition, the setting of the inclined groove 112 can not only realize the positioning between the bracket 120 and the coil frame 110, but also play a guiding role, so that the mounting protrusion 122 enters the mounting hole 111 along a specific path.

[0092] In summary, the embodiment of the present application sets a connector 200 in the shell, and sets the connector 200 at least partially between the bracket 120 and the coil skeleton 110, and makes the connector 200 abut against the bracket 120 and the coil skeleton 110 respectively, so that during the assembly of the circuit breaker, it is only necessary to assemble the bracket 120 and the coil skeleton 110 according to the above structure, and the connector 200 can be clamped between the connector 200 and the coil skeleton 110 to achieve fixation between the release assembly 100 and the connector 200, and no additional steps are required to assemble the release assembly 100 and the shell of the circuit breaker, thereby simplifying the assembly steps of the circuit breaker, improving the production efficiency of the circuit breaker, and reducing the production cost of the circuit breaker.

[0093] Those skilled in the art will appreciate that, although some embodiments herein include certain features included in other embodiments, the combination of features of different embodiments is meant to be within the scope of the present application and form different embodiments. For example, in the claims, any one of the claimed embodiments may be used in any combination.

[0094] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A circuit breaker, characterized in that: include: A release assembly, the release assembly comprising a bracket and a coil frame connected to each other; A connecting piece is connected to the housing of the circuit breaker, wherein the connecting piece is at least partially disposed between the bracket and the coil frame, and the connecting piece abuts against the bracket and the coil frame respectively.

2. The circuit breaker according to claim 1, characterized in that: A limiting groove is provided on one side of the connecting member close to the bracket, and the bracket is at least partially located in the limiting groove.

3. The circuit breaker according to claim 2, characterized in that: The connecting member comprises a first side wall and a second side wall, wherein the first side wall and the second side wall are located at opposite sides of the limiting groove along a first direction, and the first direction is perpendicular to the direction in which the bracket and the coil frame are relatively arranged; The portion of the bracket located in the limiting groove abuts against the first side wall and the second side wall respectively.

4. The circuit breaker according to claim 3, characterized in that: The first side wall is provided with a first convex rib, and the second side wall is provided with a second convex rib; The portion of the bracket located in the limiting groove abuts against the first side wall through the first convex rib, and the portion of the bracket located in the limiting groove abuts against the second side wall through the second convex rib.

5. The circuit breaker according to claim 4, characterized in that: The first convex rib and the second convex rib are respectively provided with chamfers at one end away from the coil frame.

6. The circuit breaker according to any one of claims 1 to 5, characterized in that: The bracket comprises a mounting plate, which extends from one side of the connecting member to the other side and is connected to the coil frame.

7. The circuit breaker according to claim 6, characterized in that: The mounting plate extends from the edge of the connecting member to the other side of the connecting member, and the mounting plate abuts against the edge of the connecting member.

8. The circuit breaker according to claim 6, characterized in that: The connecting member is provided with a slot, and the mounting plate passes through the slot and extends to the other side of the connecting member.

9. The circuit breaker according to claim 6, characterized in that: There are two mounting plates, and the coil frame is clamped between the two mounting plates.

10. The circuit breaker according to claim 9, characterized in that A mounting protrusion is provided on one side of the mounting plate close to the coil frame, and a mounting hole is provided on one side of the coil frame close to the mounting plate, and the mounting protrusion is located in the mounting hole.

11. The circuit breaker according to claim 10, characterized in that The coil frame is provided with an oblique groove, the oblique groove and the mounting hole are located on the same side of the coil frame, and the oblique groove is located on the side of the mounting hole close to the connecting piece, and the depth of the oblique groove gradually decreases from the end away from the mounting hole to the end close to the mounting hole.

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