A signal output device and auxiliary switch for a circuit breaker

Abstract

The application relates to the technical field of electrical connection devices, in particular to a signal output device and an auxiliary switch of a circuit breaker. The signal output device comprises a shell, a switch unit and a switching structure, and the switch unit and the switching structure are fixedly installed through the shell. The signal output device has the characteristics of simple structure and strong universality, can be used as the auxiliary switch of the circuit breaker, and can feed back the state of the circuit breaker. After the reset spring is removed, the signal output device can be used as the main structure of the panel switch. In other words, after the reset spring is added, the main structure of the panel switch can be used as the signal output device. For some users who use both the panel switch and the signal output device, the two functions can be realized on one structure by adding or reducing the spring, so that the types of materials are reduced, the management cost of the materials is reduced, and the overall production cost is reduced.

Description

Technical Field

[0001] This application relates to the field of electrical connection device technology, and in particular to a signal output device and an auxiliary switch for a circuit breaker. Background Technology

[0002] The auxiliary circuit of a circuit breaker is a key control and monitoring system outside the main circuit. Its core function is to improve the intelligence, safety and operational reliability of the circuit breaker.

[0003] The auxiliary circuit is equipped with a signal output device, which is mechanically connected to the circuit breaker's operating mechanism. The signal output device typically contains a common contact, a normally open contact, and a normally closed contact. When the circuit breaker closes, the operating mechanism activates the signal output device, connecting the common contact with the normally open contact and sending a closing signal to the circuit breaker. When the circuit breaker opens, the operating mechanism activates the signal output device, connecting the common contact with the normally closed contact and sending an opening signal to the circuit breaker. This allows for remote status feedback and monitoring of the circuit breaker.

[0004] In related technologies, signal output devices typically employ microswitches, which are relatively expensive. Utility Model Content

[0005] This utility model provides a signal output device, which has a simple structure, strong versatility, and can save costs.

[0006] The technical solution of this utility model is as follows: In a first aspect, this application provides a signal output device including a housing, a switching unit, and a switching structure, wherein the switching unit and the switching structure are fixedly installed through the housing.

[0007] The switch unit includes a rotating connector, a common terminal, a first terminal, and a second terminal. Along a first direction, the rotating connector is disposed between two side walls of the housing and is rotatably connected to the two side walls.

[0008] Along the second direction, the rotating connector includes a first contact portion, a second contact portion, and a third contact portion, which are integrally structured. The second contact portion is located between the first contact portion and the third contact portion, and the three are arranged in a triangular layout.

[0009] Along a third direction, the common terminal, the first terminal and the second terminal are located on one side of the rotating connector, and a portion of any one of the common terminal, the first terminal and the second terminal is located inside the housing, while the other portion extends out of the housing for connecting external lines.

[0010] Along the second direction, the common terminal is located between the first terminal and the second terminal, and the common terminal is always in contact with the second contact part.

[0011] Along the third direction, the switching structure is located on the side of the rotating connector away from the common terminal block. The switching structure includes an adapter, a retractable dial and a return spring. The adapter is located between two side walls of the housing along the first direction and is rotatably connected to the two side walls.

[0012] Along the third direction, the side of the adapter frame away from the rotating connector is provided with an impact-resistant part. Along the second direction, the impact-resistant part is located near one end of the adapter frame.

[0013] Along the third direction, the retractable dial and the return spring are both located on the side of the adapter frame near the rotating connector, and the return spring is opposite to the part that is struck.

[0014] When the impacted part is struck, the adapter bracket rotates relative to the housing, compressing the return spring and causing the retractable dial to move the rotating connector, separating the first contact part from the contact point of the first terminal and making the third contact part contact the contact point of the second terminal. After the impact force disappears, the adapter bracket rotates in the reverse direction under the action of the return spring, causing the retractable dial to move the rotating connector, separating the third contact part from the contact point of the second terminal and making the first contact part contact the contact point of the first terminal. The first, second, and third directions are perpendicular to each other.

[0015] Based on the signal output device provided in the first aspect, it can be used as the main structure of a panel switch after removing the reset spring. Conversely, the main structure of the panel switch, with the addition of a reset spring, can be used as a signal output device. Thus, for users who use both panel switches and signal output devices, both functions can be achieved within a single structure by adding or removing the spring. This helps reduce the types of materials, lowers material management costs, and consequently contributes to a reduction in overall production costs.

[0016] In one possible design, the surface of the adapter on the side of the impacted part includes a first plane and a second plane that are connected and symmetrically arranged.

[0017] Along the first direction, the two sides at the intersection of the first plane and the second plane are hinged to the two side walls of the housing. Along the third direction, the first plane and the second plane are located on the same side of the plane defined by the first direction and the second direction, and at least one of the first plane and the second plane is inclined toward the direction of the rotating connector.

[0018] Based on the signal output device provided in this embodiment, the first plane and the second plane are located on the same side of the plane defined by the first direction and the second direction, and at least one of the first plane and the second plane is inclined toward the direction of the rotating connector. In this way, interference with the external structure can be avoided when the adapter rotates.

[0019] In one possible design, the impacted part is a boss formed on the surface of the adapter.

[0020] Based on the signal output device provided in this embodiment, the signal output device is typically mounted using a mounting base. The bottom of the mounting base has a through hole that exposes the impact-sensitive portion of the signal output device. When a boss is provided on the impact-sensitive portion of the adapter frame surface, at least a portion of the boss protrudes from the through hole, making it easier for external impacting elements to strike the adapter frame.

[0021] In one possible design, a positioning groove is also provided on the side of the boss away from the adapter frame.

[0022] The signal output device provided by this embodiment can also be applied to cases where the external striking element is a rod. The rod is thin and long, and if it directly contacts the surface of the adapter frame or the boss, it is prone to slipping, resulting in ineffective striking. A positioning groove is also provided on the side of the boss away from the adapter frame, allowing the rod to accurately strike the adapter frame, thereby improving the operational reliability of the signal output device.

[0023] In one possible design, the housing includes an upper housing and a lower housing, with the switching structure mounted on the upper housing and the switching unit mounted on the lower housing. The upper and lower housings are snap-fitted together.

[0024] Based on the signal output device provided by this embodiment, during assembly, the switching structure can be installed on the upper housing and the switching unit can be installed on the lower housing. Then, the upper housing and the lower housing can be snapped together. This helps to reduce the assembly difficulty of the signal output device and improve the assembly efficiency.

[0025] In one possible design, the lower housing has a mounting groove on the side facing the upper housing, and the bottom of the mounting groove has a first slot and a second slot arranged in a second direction.

[0026] Both the first and second terminals include connected horizontal and vertical portions. The horizontal portion extends along a second direction and has a contact point for contacting the rotating connector. The vertical portion extends along a third direction. The horizontal portions of the first and second terminals respectively contact the bottom of the mounting groove. The vertical portion of the first terminal inserts into the first slot and extends out of the lower housing from the first slot. The vertical portion of the second terminal inserts into the second slot and extends out of the lower housing from the second slot.

[0027] Along a third direction, a first positioning post and a second positioning post are provided on the side of the upper housing facing the lower housing. The first positioning post is directly opposite the area of ​​the first terminal block where no contact point is provided, and is used for positioning the first terminal block in the third direction. The second positioning post is directly opposite the area of ​​the second terminal block where no contact point is provided, and is used for positioning the second terminal block in the third direction.

[0028] Based on the signal output device provided in this embodiment, the lower housing is assembled with the first and second terminals by a plug-in connection. The positions of the first and second terminals in the first and second directions can be defined by corresponding first and second slots. The positioning of the first and second terminals in the third direction is defined by corresponding first and second positioning posts after the lower and upper housings are snapped together. In this way, the first and second terminals are easy to install and have stable positions.

[0029] In one possible design, the common terminal extends in a third direction, and a wedge-shaped portion is provided on the side of the common terminal.

[0030] A third slot is also provided at the bottom of the mounting groove, located between the first and second slots along the second direction. The shape of the opening of the third slot near the mounting groove is adapted to the wedge-shaped portion. The common terminal and the third slot are interference-fitted through the wedge-shaped portion.

[0031] Based on the signal output device provided in this embodiment, the common terminal and the third slot are interference-fitted by a wedge-shaped portion. This helps to ensure the installation position of the common terminal in the third direction, thereby improving the fit and installation accuracy of the common terminal, rotating connector, and adapter in the third direction. Furthermore, the interference fit between the common terminal and the third slot by the wedge-shaped portion is easy to implement.

[0032] Secondly, based on the same inventive concept, this application also provides an auxiliary switch for a circuit breaker, including a signal output device, a mounting base, and a striking plate, wherein the signal output device is the aforementioned signal output device.

[0033] Along the third direction, a through hole is provided at the bottom of the mounting base, the signal output device is located at the mounting base, and the adapter of the switching structure is close to the bottom of the mounting base, with the through hole exposing the impacted part.

[0034] Along the first direction, the striking plate is hinged to the mounting base. Along the second direction, one end of the striking plate is provided with a drive unit that cooperates with the circuit breaker operating mechanism, and the other end of the striking plate is provided with a striking part for striking the transfer frame. Along the third direction, the striking part is directly opposite the striking part of the transfer frame.

[0035] Based on the auxiliary switch of the circuit breaker provided in the second aspect, when in use, the auxiliary switch cooperates with the operating mechanism of the circuit breaker to provide feedback on the closing and opening status of the circuit breaker. Furthermore, since the auxiliary switch employs the aforementioned signal output device, its beneficial effects can be found in the beneficial effects brought about by the aforementioned signal output device and its various possible implementations, and will not be repeated here.

[0036] In one possible design, the mounting base is provided with multiple assembly slots arranged along a second direction, and each assembly slot has a through hole at its bottom.

[0037] The signal output devices are multiple, and the multiple signal output devices are correspondingly arranged in multiple assembly slots. The impact-receiving part of the signal output device is a boss formed on the surface of the adapter frame, and at least part of the boss exposes the through hole.

[0038] Based on the auxiliary switch of the circuit breaker provided in this embodiment, the strike-receiving part of the signal output device is a boss formed on the surface of the adapter frame, with at least a portion of the boss exposing a through hole. This eliminates the need for the striking portion of the striking plate to pass through the through hole to strike the strike-receiving part of the adapter frame. Furthermore, since at least a portion of the boss exposes the through hole, the striking portion of the striking plate does not need to be a toothed structure, and multiple striking portions of the striking plate used to strike multiple signal output devices can be connected as one piece, thus simplifying the structure of the striking plate.

[0039] In one possible design, a second slot is provided at the end of the housing away from the bottom of the assembly slot, and a second hook that mates with the slot is provided at the end of the slot wall away from the bottom of the assembly slot. The signal output device is engaged by the engagement of the second slot and the second hook.

[0040] Based on the auxiliary switch of the circuit breaker provided in this embodiment, the signal output device is assembled with the mounting slot by a snap-fit ​​method, which has the characteristics of convenient and simple assembly, and the signal output device is not easy to fall out. Attached Figure Description

[0041] Figure 1 This is a three-dimensional structural diagram of a signal output device provided in an embodiment of this application.

[0042] Figure 2 for Figure 1 The cross-sectional view, and Figure 2 The return spring is hidden.

[0043] Figure 3 for Figure 1 , Figure 2 A schematic diagram of the intermediate transfer frame.

[0044] Figure 4 For application Figure 1 The diagram shows the structure of the auxiliary switch of the signal output device.

[0045] Figure 5 for Figure 4 Exploded view.

[0046] Figure 6 for Figure 1 The diagram shows the structure of the upper housing of the signal output device.

[0047] Figure 7 for Figure 1 The diagram shows the structure of the lower housing of the signal output device.

[0048] Figure 8 for Figure 2 A schematic diagram of a common terminal block.

[0049] Figure 9 for Figure 4 A schematic diagram of one type of impact plate.

[0050] Figure 10 for Figure 1 The diagram shows the structure of the signal output device from another perspective.

[0051] The attached figures are labeled as follows: 1. Signal output device; 11. Housing; 111. Upper housing; 1111. First positioning post; 1112. Second positioning post; 1113. First latch; 112. Lower housing; 1121. Mounting groove; 11211. First slot; 11212. Third slot; 11213. Hinge bracket; 1122. First slot; 1123. Second slot; 12. Switching unit; 121. Rotating connector; 122. Common terminal; 1221. Wedge-shaped part; 123. First terminal; 124. Second terminal; 12A. Wiring hole; 13. Switching structure; 131. Adapter frame; 1311. First plane; 1312. Second plane; 1313. Boss; 1314. Positioning groove; 132. Telescopic dial head; 1321. Dial lever; 2. Mounting base; 21. Assembly slot; 22. Second latch; 3. Striking plate; 31. Drive unit; 32. Striking part; 321. Toothed structure; 33. Hinge shaft; 4. Socket; D1, First Direction; D2, Second Direction; D3, Third Direction. Detailed Implementation

[0052] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0053] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The terms “comprising” and “having”, and any variations thereof, in the specification, claims, and drawings of this application are intended to cover non-exclusive inclusion.

[0054] The term "embodiment" as used herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of the phrase "embodiment" in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0055] Furthermore, the terms "first," "second," etc., in the specification and claims of this application or in the aforementioned drawings are used to distinguish different objects rather than to describe a specific order, and may explicitly or implicitly include one or more of the features.

[0056] In the description of this application, unless otherwise stated, "multiple" means two or more (including two).

[0057] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, "connection" or "joining" in mechanical structures can refer to a physical connection. A physical connection can be a fixed connection, such as a connection secured by spacers, screws, bolts, or other spacers. A physical connection can also be a detachable connection, such as a snap-fit ​​or interlocking connection. A physical connection can also be an integral connection, such as a connection formed by welding, bonding, or integral molding. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0058] The present application will be described in detail below with reference to the accompanying drawings.

[0059] Figure 1 This is a three-dimensional structural diagram of a signal output device provided in an embodiment of this application. Figure 2 for Figure 1 The cross-sectional view, and Figure 2 The return spring is hidden.

[0060] Please refer to Figure 1 and Figure 2 The signal output device 1 provided in this application includes a housing 11, a switching unit 12 and a switching structure 13, which are fixedly installed through the housing 11.

[0061] The switch unit 12 includes a rotating connector 121, a common terminal 122, a first terminal 123, and a second terminal 124. Along the first direction D1, the rotating connector 121 is disposed between two side walls of the housing 11 and is rotatably connected to the two side walls.

[0062] Along the second direction D2, the rotating connector 121 includes a first contact portion, a second contact portion, and a third contact portion, which are integrally structured. The second contact portion is located between the first contact portion and the third contact portion, and the three are arranged in a triangular layout.

[0063] Along the third direction D3, the common terminal 122, the first terminal 123 and the second terminal 124 are disposed on one side of the rotating connector 121, and a portion of any one of the common terminal 122, the first terminal 123 and the second terminal 124 is located inside the housing 11, while the other portion extends out of the housing 11 for connecting external lines.

[0064] Along the second direction D2, the common terminal 122 is located between the first terminal 123 and the second terminal 124, and the common terminal 122 is always in contact with the second contact part.

[0065] Along the third direction D3, the switching structure 13 is located on the side of the rotating connector 121 away from the common terminal 122. The switching structure 13 includes an adapter 131, a retractable dial 132 and a reset spring. The adapter 131 is located between the two side walls of the housing 11 along the first direction D1 and is rotatably connected to the two side walls.

[0066] Along the third direction D3, the side of the adapter 131 away from the rotating connector 121 is provided with an impact-receiving part. Along the second direction D2, the impact-receiving part is located near one end of the adapter 131.

[0067] Along the third direction D3, the retractable dial 132 and the return spring are both located on the side of the adapter 131 near the rotating connector 121, and the return spring is opposite to the part that is struck.

[0068] When the impacted part is struck, the adapter 131 rotates relative to the housing 11, compressing the return spring and causing the retractable dial 132 to move the rotating connector 121, separating the first contact part from the contact point of the first terminal 123 and making the third contact part contact the contact point of the second terminal 124. After the impact force disappears, the adapter 131 rotates in the reverse direction under the action of the return spring, causing the retractable dial 132 to move the rotating connector 121, separating the third contact part from the contact point of the second terminal 124 and making the first contact part contact the contact point of the first terminal 123.

[0069] The first direction D1, the second direction D2, and the third direction D3 are perpendicular to each other.

[0070] Specifically, please refer to Figure 2 In this application, the switching unit 12 is the core electrical connection component for realizing circuit switching, and the rotating connector 121, acting as a "knife switch," is the moving contact of the switching unit 12. The rotating connector 121 includes a first contact portion, a second contact portion, and a third contact portion arranged in a triangular pattern, which provides two stable contact positions and an effective lever arm. The common terminal 122 is the output terminal of the switching unit 12, and the first terminal 123 and the second terminal 124 are the two input terminals of the switching unit 12.

[0071] The switching structure 13 is a driving and resetting mechanism that transmits and converts external mechanical force into the rotational motion of the rotating connector 121. The adapter 131 converts linear impact force into its own rotational motion. The retractable dial 132 is a key component connecting the adapter 131 and the rotating connector 121; its retractable nature ensures smooth contact with the rotating connector 121 during operation and ultimately executes the dialing motion, preventing jamming. The reset spring provides the power source for automatic reset.

[0072] The signal output device 1 of this application exists in the following three states: First, initial state In the initial state, under the preload of the return spring, the adapter 131 remains in an initial position. At this time, the position of the retractable dial 132 causes the first contact portion to contact the contact point of the first terminal 123, and the signal output device 1 can output a first signal outward through the common terminal 122.

[0073] Second, trigger state When an external force is applied to the "impacted part" of the adapter frame 131, the adapter frame 131 overcomes the elastic force of the return spring and rotates. As the adapter frame 131 rotates, the retractable dial 132 moves accordingly and actuates the rotating connector 121. After being actuated, the rotating connector 121 rotates, causing the first contact part to separate from the contact point of the first terminal 123, and the third contact part to contact the contact point of the second terminal 124. At this time, the signal output device 1 can output a second signal through the common terminal 122. During this process, the return spring is further compressed, storing elastic potential energy.

[0074] Third, Reset State The force acting on the "impacted part" is removed. The compressed return spring releases its stored potential energy, pushing the adapter 131 to rotate in the reverse direction and return to its initial position. During the reset process of the adapter 131, the retractable dial 132 again moves the rotating connector 121, causing it to rotate in the opposite direction. The third contact part separates from the second terminal 124, and the first contact part re-contacts the first terminal 123. The signal output device 1 returns to its initial "normally closed state".

[0075] As can be seen from the above, the signal output device 1 of this application can output a first signal and a second signal. These first and second signals are generated by the triggering of an external mechanical structure; therefore, the signal output device 1 can be used to represent two different operating states of the external mechanical structure. For example, it can be linked with the operating mechanism of a circuit breaker to indicate the closed and open states of the circuit breaker.

[0076] Please continue to refer to this. Figure 2 , Figure 2 The signal output device 1, which omits the reset spring, has a structure similar to the main structure of a panel switch. By combining this structure with the button unit of the panel switch, a panel switch can be formed. Specifically, when the signal output device 1, with the reset spring removed, is used as the main structure of the panel switch, the first terminal 123 is connected to the neutral wire signal, and the second terminal 124 is connected to the live wire signal. The button unit is located on the side of the adapter frame 131 where the impact point is located.

[0077] In the initial state, the first contact part is in contact with the contact point of the first terminal 123, and the panel switch is in the off state.

[0078] When the panel switch needs to be turned on, the button unit acts on the adapter 131, causing the adapter 131 to rotate. The retractable dial 132 moves accordingly and actuates the rotating connector 121. After the rotating connector 121 is actuated, it rotates, causing the first contact part to separate from the contact point of the first terminal 123, and the third contact part to contact the contact point of the second terminal 124, thus turning on the panel switch.

[0079] When the panel switch needs to be turned off, the button unit acts on the adapter 131, causing the adapter 131 to rotate in the reverse direction. The retractable dial 132 moves accordingly and actuates the rotating connector 121. After the rotating connector 121 is actuated, it rotates, causing the third contact part to separate from the contact point of the second terminal 124, and the first contact part to contact the contact point of the first terminal 123, thus turning off the panel switch.

[0080] In summary, the signal output device 1 of this application, after removing the reset spring, can be used as the main structure of a panel switch. Conversely, the main structure of the panel switch, after adding the reset spring, can be used as the signal output device 1.

[0081] Thus, for users who use both panel switches and signal output devices 1, the two functions can be achieved in one structure by adding or removing springs. This helps to reduce the types of materials, reduce material management costs, and thus help to reduce overall production costs.

[0082] It should be noted that, Figure 2 A return spring is hidden inside. Figure 2 The reset spring is installed at point A of the dotted coil.

[0083] It should also be noted that the combination structure of the adapter bracket 131 and the retractable toggle head 132 is a common structure in panel switches, and the adapter bracket 131 can be configured as follows: Figure 2 The T-shaped telescopic dial 132 shown generally includes a columnar spring and a lever 1321. The columnar spring is installed in the slot of the vertical part of the T-shape. One end of the lever 1321 is connected to the columnar spring, and the other end of the lever 1321 is used to actuate the rotating connector 121 of the switch unit 12. Figure 2 A columnar spring is hidden inside, and the columnar spring is installed at point B of the dotted circle.

[0084] Figure 3 for Figure 1 , Figure 2 Please refer to the structural diagram of the intermediate junction box 131. Figures 1 to 3 The surface of the adapter 131 on the side where the impacted part is located includes a first plane 1311 and a second plane 1312 that are connected and symmetrically arranged. Along the first direction D1, the two sides of the intersection of the first plane 1311 and the second plane 1312 are hinged to the two side walls of the housing 11. Along the third direction D3, the first plane 1311 and the second plane 1312 are located on the same side of the plane defined by the first direction D1 and the second direction D2, and at least one of the first plane 1311 and the second plane 1312 is inclined toward the direction of the rotating connector 121.

[0085] Specifically, along the second direction D2, the impacted part is closer to one end of the adapter frame 13. Therefore, when the adapter frame 131 is struck or reset by an external force, it will rotate, with one end rotating towards the rotating connector 121 and the other end rotating away from the rotating connector 121. In this embodiment, the first plane 1311 and the second plane 1312 are located on the same side of the plane defined by the first direction D1 and the second direction D2, and at least one of the first plane 1311 and the second plane 1312 is inclined towards the rotating connector 121. This prevents the rotating end of the adapter frame 131 away from the rotating connector 121 from extending outside the housing 11 and interfering with external structures.

[0086] for example, Figure 4 For application Figure 1 The schematic diagram shown is of the auxiliary switch of the signal output device 1. Figure 5 for Figure 4 Please refer to the exploded view. Figures 2 to 5 When the signal output device 1 is used, it is usually installed with the aid of a mounting base 2. The bottom of the mounting base 2 has a through hole, which exposes the impact-sensitive part of the signal output device 1, so that an external impacting element can strike the impact-sensitive part. During installation, the end of the housing 11 on one side of the adapter 131 contacts the bottom of the mounting base 2 for positioning. The intersection of the first plane 1311 and the second plane 1312 is close to the bottom of the mounting base 2. The first plane 1311 and the second plane 1312 are located on the same side of the plane defined by the first direction D1 and the second direction D2, and at least one of the first plane 1311 and the second plane 1312 is inclined towards the direction of the rotating connector 121. This avoids interference between the adapter 131 and the bottom of the mounting base 2 when the adapter 131 rotates.

[0087] Please continue to refer to this. Figure 3 In some embodiments of this application, the impacted part is a boss 1313 formed on the surface of the adapter 131.

[0088] Specifically, please combine Figures 2 to 5 When in use, the signal output device 1 is usually installed with the help of the mounting base 2. The bottom of the mounting base 2 is provided with a through hole, which exposes the impact-sensitive part of the signal output device 1. When a boss 1313 is provided on the impact-sensitive part of the surface of the adapter frame 131, at least a part of the boss 1313 will protrude from the through hole, so that external impacting parts can more easily hit the adapter frame 131.

[0089] Please continue to refer to this. Figure 2 and Figure 3In some embodiments of this application, a positioning groove 1314 is also provided on the side of the boss 1313 away from the adapter frame 131.

[0090] Specifically, the signal output device 1 provided in this embodiment can also be applied to cases where the external striking element is a rod. The rod is thin and long, and if it directly contacts the surface of the adapter frame 131 or the surface of the boss 1313, it is prone to slipping, resulting in ineffective striking. A positioning groove 1314 is also provided on the side of the boss 1313 away from the adapter frame 131, allowing the rod to accurately strike the adapter frame 131 through the positioning groove 1314, thereby improving the operational reliability of the signal output device 1.

[0091] Figure 6 for Figure 1 The diagram shows the structure of the upper housing 111 of the housing 11 in the signal output device 1 shown. Figure 7 for Figure 1 The diagram shows the structure of the lower housing 112 of the housing 11 in the signal output device 1 shown. Please refer to... Figure 6 and Figure 7 In one embodiment of this application, the housing 11 includes an upper housing 111 and a lower housing 112. A switching structure 13 is mounted on the upper housing 111, and a switching unit 12 is mounted on the lower housing 112. The upper housing 111 and the lower housing 112 are snap-fit ​​connected.

[0092] Please combine Figure 1 , Figure 2 , Figure 6 and Figure 7 Based on the signal output device 1 provided in this embodiment, during assembly, the switching structure 13 can be installed on the upper housing 111 and the switching unit 12 can be installed on the lower housing 112. Then, the upper housing 111 and the lower housing 112 can be snapped together. This helps to reduce the assembly difficulty of the signal output device 1 and improve the assembly efficiency.

[0093] Please combine Figure 2 and Figure 7 In some embodiments of this application, the lower housing 112 is provided with a mounting groove 1121 on the side facing the upper housing 111, and the bottom of the mounting groove 1121 is provided with a first slot 11211 and a second slot arranged along the second direction D2.

[0094] Please continue to refer to this. Figure 2 Both the first terminal 123 and the second terminal 124 include a horizontal part and a vertical part that are connected to each other. The horizontal part extends along the second direction D2 and is provided with a contact point that contacts the rotating connector 121. The vertical part extends along the third direction D3.

[0095] Please combine Figure 2 and Figure 7The horizontal portions of the first terminal 123 and the second terminal 124 respectively contact the bottom of the mounting groove 1121. The vertical portion of the first terminal 123 is inserted into the first slot 11211 and extends out of the lower housing 112 from the first slot 11211. The vertical portion of the second terminal 124 is inserted into the second slot and extends out of the lower housing 112 from the second slot.

[0096] Please combine Figure 2 and Figure 6 Along the third direction D3, a first positioning post 1111 and a second positioning post 1112 are provided on the side of the upper housing 111 facing the lower housing 112. The first positioning post 1111 is directly opposite the area of ​​the horizontal part of the first terminal 123 where no contact point is provided, and is used for positioning the first terminal 123 in the third direction D3. The second positioning post 1112 is directly opposite the area of ​​the horizontal part of the second terminal 124 where no contact point is provided, and is used for positioning the second terminal 124 in the third direction D3.

[0097] Based on the signal output device 1 provided in this embodiment, the lower housing 112 is assembled with the first terminal 123 and the second terminal 124 by plug-in connection. The positions of the first terminal 123 and the second terminal 124 in the first direction D1 and the second direction D2 can be defined by the corresponding first slot 11211 and the second slot. The positioning of the first terminal 123 and the second terminal 124 in the third direction D3 is defined by the corresponding first positioning post 1111 and the second positioning post 1112 after the lower housing 112 and the upper housing 111 are snapped together. In this way, the first terminal 123 and the second terminal 124 are easy to install and have stable positions.

[0098] Figure 8 for Figure 2 A schematic diagram of a common terminal block 122 is provided. Please refer to the diagram. Figure 2 , Figure 7 and Figure 8 In some embodiments of this application, the common terminal 122 extends along a third direction D3, and a wedge-shaped portion 1221 is provided on the side of the common terminal 122.

[0099] A third slot 11212 is also provided at the bottom of the mounting groove 1121. Along the second direction D2, the third slot 11212 is located between the first slot 11211 and the second slot. The shape of the groove opening on the side of the third slot 11212 closest to the mounting groove 1121 is adapted to the wedge-shaped portion 1221. The common terminal 122 and the third slot 11212 are interference-fitted through the wedge-shaped portion 1221.

[0100] Specifically, please combine Figure 2 , Figure 7 and Figure 8When the common terminal 122 is inserted into the third slot 11212, it is inserted from the side of the third slot 11212 closest to the mounting groove 1121. The wedge-shaped portion 1221 on the side of the common terminal 122 is triangular prism-shaped. The two sides of the wedge-shaped portions 1221 that are close to each other are combined with the common terminal 122, and the sides that are far apart from each other are expanded outward in the opposite direction of the insertion direction relative to the common terminal 122. In this way, the common terminal 122 and the third slot 11212 can achieve an interference fit through the two wedge-shaped portions 1221.

[0101] Please continue to refer to this. Figure 2 , Figure 7 and Figure 8 Along the third direction D3, the adapter frame 131, the rotating connector 121, and the common terminal 122 are in a mating relationship. In this embodiment, the common terminal 122 and the third slot 11212 are interference-fitted by the wedge-shaped portion 1221. This helps to ensure the installation position of the common terminal 122 in the third direction D3, thereby improving the fit and installation accuracy of the common terminal 122, the rotating connector 121, and the adapter frame 131 in the third direction D3. Furthermore, the interference fit between the common terminal 122 and the third slot 11212 by the wedge-shaped portion 1221 is easy to implement.

[0102] Please continue to refer to this. Figure 2 and Figure 7 Two hinge brackets 11213 are also provided on the inner side of the bottom of the mounting slot 1121. Along the first direction D1, the two hinge brackets 11213 are located on both sides of the common terminal 122.

[0103] Along the first direction D1, mounting shafts adapted to the two hinge frames 11213 extend from the opposite sides of the second contact portion of the rotating connector 121, and the rotating connector 121 is mounted on the two hinge frames 11213 via the mounting shafts at both ends.

[0104] Therefore, based on the signal output device 1 provided above, when assembling the lower housing 112, it is only necessary to insert the first terminal 123, the second terminal 124 and the common terminal 122 into the bottom of the mounting slot 1121, and then place the rotating connector 121 on the hinge frame 11213, which has the feature of convenient installation.

[0105] Please combine Figure 2 , Figure 6 and Figure 7 In one embodiment of this application, a plurality of first hooks 1113 are provided on the side of the upper housing 111 facing the lower housing 112. The plurality of first hooks 1113 are symmetrically arranged on opposite sides of the upper housing 111 in a first direction D1, and the first hooks 1113 on each side are arranged along a second direction D2. Exemplarily, two hooks can be provided on each side.

[0106] Correspondingly, please continue to refer to [the relevant documentation]. Figure 7 First slots 1122 corresponding to multiple first hooks 1113 are provided on both sides of the lower housing 112 along the first direction D1.

[0107] Please continue to refer to this. Figure 2 , Figure 6 and Figure 7 When the upper housing 111 and the lower housing 112 are engaged, the first hook 1113 extends into the mounting groove 1121 of the lower housing 112 and engages with the corresponding first groove 1122 from the inner side of the two side walls of the lower housing 112 along the first direction D1. The side wall of the upper housing 111 along the first direction D1 contacts the side wall of the lower housing 112 along the first direction D1. This helps to ensure the sealing of the housing 11.

[0108] Please combine Figure 2 , Figure 4 and Figure 5 Based on the same inventive concept, this application also provides an auxiliary switch for a circuit breaker. The auxiliary switch for the circuit breaker provided in this application includes a signal output device 1, a mounting base 2, and a striking plate 3. The signal output device 1 is the same as described above. Along the third direction D3, a through hole is provided at the bottom of the groove of the mounting base 2. The signal output device 1 is disposed at the mounting base 2, and the adapter 131 of the switching structure 13 is close to the bottom of the groove of the mounting base 2. The through hole exposes the striking part.

[0109] Along the first direction D1, the striking plate 3 is hinged to the mounting base 2. Along the second direction D2, one end of the striking plate 3 is provided with a drive part 31 that cooperates with the circuit breaker operating mechanism, and the other end of the striking plate 3 is provided with a striking part 32 for striking the adapter frame 131. Along the third direction D3, the striking part 32 is directly opposite the striking part of the adapter frame 131.

[0110] When in use, this auxiliary switch works in conjunction with the circuit breaker's operating mechanism. In one application scenario, it can be used to provide feedback on the circuit breaker's closing / opening status. Specifically, when the circuit breaker closes, the operating mechanism performs a closing operation, which triggers the driving part 31 at one end of the striking plate 3, causing the striking plate 3 to rotate. This causes the striking part 32 at the other end of the striking plate 3 to strike the struck portion of the transfer frame 131. As a result, the output signal of the signal output device 1 switches from the first signal to the second signal, indicating that the circuit breaker is in the closed state.

[0111] When the circuit breaker trips, the operating mechanism performs the tripping operation. The operating mechanism separates from the driving part 31 at one end of the striking plate 3, and the striking plate 3 rotates in the opposite direction, causing the striking part 32 at the other end of the striking plate 3 to leave the striking part of the transfer frame 131. The striking force disappears, and the output signal of the signal output device 1 switches from the second signal to the first signal, indicating that the circuit breaker is in the tripping state.

[0112] Understandably, in another application scenario, if the operating mechanism triggers the auxiliary switch when the circuit breaker is closed, and then leaves the auxiliary switch after closing, the auxiliary switch can provide feedback on the circuit breaker's closing process and closing status.

[0113] As can be seen from the above, the response of the auxiliary switch provided in this application to the circuit breaker state depends on the time when the circuit breaker's operating mechanism touches the auxiliary switch. In addition to the two application scenarios mentioned above, there can be other application scenarios as well.

[0114] The auxiliary switch of the circuit breaker provided in this application includes the signal output device 1 provided in this application. Its beneficial effects can be found in the beneficial effects of the signal output device 1 and its various possible implementations, which will not be repeated here.

[0115] Please refer to Figure 5 and Figure 10 For example, the striking plate 3 may be provided with hinge shafts 33 on both sides along the first direction D1, and the striking plate 3 is hinged to the mounting base 2 through the hinge shafts 33.

[0116] Please continue to refer to this. Figure 2 , Figure 4 and Figure 5 In one embodiment of this application, the mounting base 2 is provided with a plurality of assembly slots 21, which are arranged along the second direction D2, and each assembly slot 21 has a through hole at the bottom.

[0117] There are multiple signal output devices 1, and multiple signal output devices 1 are correspondingly arranged in multiple assembly slots 21. The impact-receiving part of the signal output device 1 is a boss 1313 formed on the surface of the adapter frame 131, and at least part of the boss 1313 is exposed through the through hole.

[0118] Based on the auxiliary switch of the circuit breaker provided in this embodiment, the mounting base 2 is provided with multiple assembly slots 21, which can install multiple signal output devices 1. Each signal output device 1 can provide feedback on the closing and opening status of a primary circuit breaker. Therefore, multiple signal output devices 1 can provide feedback on the closing and opening status of multiple circuit breakers. Furthermore, the multiple signal output devices 1 are installed using the same mounting base 2 and triggered by the same striking plate 3, which helps to simplify the overall structure of the circuit breaker auxiliary switch.

[0119] Furthermore, in this embodiment, the impact-receiving portion of the signal output device 1 is a boss 1313 formed on the surface of the adapter 131, with at least a portion of the boss 1313 exposing the through hole. Thus, the striking portion 32 of the striking plate 3 does not need to pass through the through hole to strike the impact-receiving portion of the adapter 131. And since at least a portion of the boss 1313 exposes the through hole, the striking portion 32 of the striking plate 3 does not need to be configured as follows: Figure 9 The convex tooth structure 321 shown means that the multiple striking parts 32 of the striking plate 3 used to strike multiple signal output devices 1 can be connected into one piece, which helps to simplify the structure of the striking plate 3.

[0120] It should be noted that, Figure 4 , Figure 5 In the structure shown, the mounting base 2 is provided with four assembly slots 21. Only one signal output device 1 is installed for illustration. In actual use, a maximum of four signal output devices 1 can be installed.

[0121] Figure 10 for Figure 1 The diagram shown is a structural representation of the signal output device 1 from another perspective. Please refer to it in conjunction with... Figure 4 and Figure 10 In one embodiment of this application, a second slot 1123 is provided on the side of the lower housing 112 away from the upper housing 111, and a second hook 22 that mates with the second slot 1123 is provided at the end of the wall of the assembly slot 21 away from the bottom of the slot. The signal output device 1 is engaged by the engagement of the second slot 1123 and the second hook 22.

[0122] Based on the auxiliary switch of the circuit breaker provided in this embodiment, the signal output device 1 is assembled with the mounting slot 1121 by a snap-fit ​​method, which has the characteristics of convenient and simple assembly and the signal output device 1 is not easy to fall out.

[0123] Please refer to Figure 4 In some embodiments of this application, the ends of the first terminal 123, the second terminal 124, and the third terminal extending out of the lower housing 112 are respectively provided with wiring holes 12A. The auxiliary switch also includes a socket 4, through which external wiring passes and is soldered to the wiring holes 12A of the first terminal 123, the second terminal 124, and the third terminal.

[0124] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A signal output device, characterized in that, It includes a housing, a switch unit, and a switching structure, wherein the switch unit and the switching structure are fixedly installed through the housing; The switching unit includes a rotating connector, a common terminal, a first terminal, and a second terminal; along a first direction, the rotating connector is disposed between two side walls of the housing and is rotatably connected to the two side walls; Along the second direction, the rotating connector includes a first contact portion, a second contact portion, and a third contact portion, which are integrally structured. The second contact portion is located between the first contact portion and the third contact portion, and the three are arranged in a triangular layout. Along a third direction, the common terminal, the first terminal and the second terminal are disposed on one side of the rotating connector, and a portion of any one of the common terminal, the first terminal and the second terminal is located inside the housing, while the other portion extends out of the housing for connecting external lines; Along the second direction, the common terminal is located between the first terminal and the second terminal, and the common terminal is always in contact with the second contact portion; Along a third direction, the switching structure is located on the side of the rotating connector away from the common terminal. The switching structure includes an adapter, a retractable dial, and a return spring. The adapter is located between two side walls of the housing along the first direction and is rotatably connected to the two side walls. Along the third direction, the side of the adapter frame away from the rotating connector is provided with a strike-receiving part; along the second direction, the strike-receiving part is close to one end of the adapter frame; Along the third direction, the retractable dial and the return spring are both located on the side of the adapter frame near the rotating connector, and the return spring is opposite to the impacted part; When the struck part is struck, the adapter rotates relative to the housing, compresses the return spring, and drives the retractable dial to move the rotating connector, so that the first contact part separates from the contact point of the first terminal and the third contact part contacts the contact point of the second terminal. After the impact force disappears, the adapter bracket rotates in the opposite direction under the action of the return spring, which drives the retractable dial to move the rotating connector, so that the third contact part separates from the contact point of the second terminal, and the first contact part contacts the contact point of the first terminal. The first direction, the second direction, and the third direction are perpendicular to each other.

2. The signal output device according to claim 1, characterized in that, The surface of the adapter frame on the side where the impacted part is located includes a first plane and a second plane that are connected and symmetrically arranged. Along the first direction, the two sides of the intersection of the first plane and the second plane are hinged to the two side walls of the housing; along the third direction, the first plane and the second plane are located on the same side of the plane determined by the first direction and the second direction, and at least one of the first plane and the second plane is inclined toward the direction of the rotating connector.

3. The signal output device according to claim 2, characterized in that, The impacted part is a protrusion formed on the surface of the adapter frame.

4. The signal output device according to claim 3, characterized in that, The boss is also provided with a positioning groove on the side away from the adapter frame.

5. The signal output device according to any one of claims 1 to 4, characterized in that, The housing includes an upper housing and a lower housing. The switching structure is installed in the upper housing, and the switching unit is installed in the lower housing. The upper housing and the lower housing are snap-fitted together.

6. The signal output device according to claim 5, characterized in that, The lower housing is provided with a mounting groove on the side facing the upper housing, and the bottom of the mounting groove is provided with a first slot and a second slot arranged in a second direction; Both the first and second terminals include connected horizontal and vertical portions. The horizontal portion extends along the second direction and has a contact point for contacting the rotating connector. The vertical portion extends along the third direction. The horizontal portions of the first and second terminals respectively contact the bottom of the mounting groove. The vertical portion of the first terminal is inserted into the first slot and extends out of the lower housing from the first slot. The vertical portion of the second terminal is inserted into the second slot and extends out of the lower housing from the second slot. Along the third direction, a first positioning post and a second positioning post are also provided on the side of the upper housing facing the lower housing; the first positioning post is directly opposite the area of ​​the horizontal part of the first terminal post where no contact point is provided, and is used for positioning the first terminal post in the third direction; the second positioning post is directly opposite the area of ​​the horizontal part of the second terminal post where no contact point is provided, and is used for positioning the second terminal post in the third direction.

7. The signal output device according to claim 6, characterized in that, The common terminal block includes a main body and a wedge-shaped portion, the main body extending in a third direction, and the wedge-shaped portions disposed on opposite sides of the main body; The bottom of the mounting groove is also provided with a third slot; along the second direction, the third slot is located between the first slot and the second slot; the shape of the opening of the third slot on the side near the mounting groove is adapted to the wedge-shaped portion; The common terminal block and the third slot are interference-fitted through the wedge-shaped portion.

8. An auxiliary switch for a circuit breaker, characterized in that, It includes a signal output device, a mounting base, and a striking plate, wherein the signal output device is the signal output device according to any one of claims 1 to 7; Along the third direction, a through hole is provided at the bottom of the groove of the mounting base, the signal output device is located at the mounting base, and the adapter of the switching structure is close to the bottom of the groove of the mounting base, and the through hole exposes the impacted part; Along the first direction, the striking plate is hinged to the mounting base; along the second direction, one end of the striking plate is provided with a driving part that cooperates with the circuit breaker operating mechanism, and the other end of the striking plate is provided with a striking part for striking the adapter frame; along the third direction, the striking part is directly opposite the striking part of the adapter frame.

9. The auxiliary switch of the circuit breaker according to claim 8, characterized in that, The mounting base is provided with a plurality of assembly slots, which are arranged along the second direction, and each assembly slot has a through hole at the bottom. The number of signal output devices is multiple, and the multiple signal output devices are correspondingly disposed at multiple assembly slots. The impact-receiving part of the signal output device is a boss formed on the surface of the adapter frame, and at least a portion of the boss exposes the through hole.

10. The auxiliary switch of the circuit breaker according to claim 9, characterized in that, The housing also includes a second slot, which is located at one end of the housing away from the bottom of the assembly slot. The end of the wall of the assembly slot away from the bottom of the slot is provided with a second hook that cooperates with the second slot. The signal output device is engaged by the cooperation of the second slot and the second hook.

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