Indication assembly and transfer switch

Abstract

The application provides an indicating assembly and a change-over switch, and relates to the technical field of electrical equipment. The indicating assembly comprises a first micro switch, a second micro switch and an output terminal. The first micro switch comprises a first common terminal, a first normally open terminal and a first normally closed terminal. The first common terminal is selectively connected with the first normally open terminal or the first normally closed terminal. The second micro switch comprises a second common terminal, a second normally open terminal and a second normally closed terminal. The second common terminal is selectively connected with the second normally open terminal or the second normally closed terminal. The second common terminal is electrically connected with the first normally closed terminal. The first common terminal is electrically connected with the output terminal. The output terminal has a plurality of output interfaces. The first normally open terminal, the second normally open terminal and the second normally closed terminal are respectively electrically connected with different output interfaces. In this way, the output terminal can output an indicating signal through the plurality of output interfaces to indicate the working state of the change-over switch, and the cost of the indicating assembly is low.

Description

Technical Field

[0001] This application relates to the field of electrical equipment technology, and more particularly to an indicating component and a changeover switch. Background Technology

[0002] A transfer switch is a control device used to switch a load circuit from the main power supply to a backup power supply, ensuring that multiple power sources are not simultaneously activated during the switching process. Transfer switches generally have three states: main power on, backup power on, and dual-power off. To monitor and control the transfer switch and its associated circuit, an indicator component is also included inside the switch to provide visual indication.

[0003] In related technologies, the setting of the indicator component is not reasonable and the cost is high. Utility Model Content

[0004] This application provides an indicator component and a changeover switch, which can make the setting of the indicator component more reasonable and reduce the cost of the indicator component.

[0005] In a first aspect, this application provides an indicating component for use in a selector switch. The indicating component includes a first micro switch, a second micro switch, and an output terminal. The first micro switch includes a first common terminal, a first normally open terminal, and a first normally closed terminal, the first common terminal being selectively connected to the first normally open terminal or to the first normally closed terminal. The second micro switch includes a second common terminal, a second normally open terminal, and a second normally closed terminal, the second common terminal being selectively connected to the second normally open terminal or to the second normally closed terminal, and the second common terminal is electrically connected to the first normally closed terminal. The output terminal is used to connect to a power supply component, the first common terminal is electrically connected to the output terminal, and the output terminal has multiple output interfaces, with the first normally open terminal, the second normally open terminal, and the second normally closed terminal respectively electrically connected to different output interfaces.

[0006] The changeover switch has different operating states. When the changeover switch switches between operating states, it can drive the first micro switch or the second micro switch to change the connection mode of the first common terminal or the second common terminal, so that different output interfaces generate indicator signals.

[0007] In this way, the operating state of the changeover switch can be determined based on the output interface that generates the indication signal, and the number of components in the indication assembly is relatively small, resulting in lower cost.

[0008] Optionally, the first micro switch includes a first trigger element, a first common terminal electrically connected to the first trigger element, a first break formed between a first normally open terminal and a first normally closed terminal, the first trigger element extending to the first break, and the first trigger element selectively communicating with either the first normally open terminal or the first normally closed terminal. The second micro switch includes a second trigger element, a second common terminal electrically connected to the second trigger element, a second break formed between a second normally open terminal and a second normally closed terminal, the second trigger element extending to the second break, and the second trigger element selectively communicating with either the second normally open terminal or the second normally closed terminal. The first and second trigger elements are used to receive the drive of a changeover switch.

[0009] Thus, the first trigger element is the component in the first microswitch used to receive the drive, and the second trigger element is the component in the second microswitch used to receive the drive. Specifically, the switching mechanism of the changeover switch can cooperate with both the first and second trigger elements so that the changeover switch can drive either the first or the second trigger element.

[0010] Optionally, the indicator assembly also includes a circuit board for connecting the power supply unit. The first micro switch, the second micro switch, and the output terminal are all mounted on the circuit board, and the output terminal is electrically connected to the circuit board.

[0011] With the above configuration, on the one hand, the circuit board, as a mechanical carrier, can be used to install and fix the output terminals, the first micro switch, and the second micro switch. On the other hand, the circuit board itself is an electrical connection structure, and the output terminals can be directly electrically connected to the circuit board, which facilitates the reception of electrical signals by the output terminals.

[0012] Optionally, the output terminal also has a signal interface, with the first common terminal electrically connected to the signal interface.

[0013] In this way, the first common terminal is directly connected to the output terminal through the signal interface of the output terminal, making the connection between the first common terminal and the output terminal more convenient and reliable.

[0014] Optionally, the circuit board is provided with etched lines, and a first pad and a second pad are respectively provided at both ends of an etched line. The first normally closed terminal is connected to the first pad, and the second common terminal is connected to the second pad.

[0015] In this way, connecting the first normally closed terminal and the second common terminal on the circuit board can realize the electrical connection between the first normally closed terminal and the second common terminal, which can improve the connection efficiency between the first normally closed terminal and the second common terminal.

[0016] Optionally, a conductive element is connected between the first normally closed terminal and the second common terminal.

[0017] That is, the first normally closed terminal and the second common terminal can also be electrically connected through an additional conductive element.

[0018] Optionally, the output terminal has a first interface, a second interface, and a third interface, which together form multiple output interfaces. The first interface is electrically connected to a first normally open terminal, the second interface is electrically connected to a second normally open terminal, and the third interface is electrically connected to a second normally closed terminal.

[0019] The indicator component also includes a first indicator, a second indicator, and a third indicator, wherein the first indicator is connected to a first interface, the second indicator is connected to a second interface, and the third indicator is connected to a third interface.

[0020] In this way, the first indicator, the second indicator, and the third indicator can convert the indicator signal output from the output terminal into a more intuitive signal, so that the staff or users can intuitively judge the working status of the changeover switch at this time.

[0021] Optionally, the indicating component also includes a third micro switch, which includes a third common terminal, a third normally open terminal, and a third normally closed terminal. The third common terminal can be selectively connected to the third normally open terminal or to the third normally closed terminal. The third common terminal is electrically connected to the first normally closed terminal, and the third normally closed terminal is electrically connected to the second common terminal. The first normally open terminal, the second normally open terminal, the second normally closed terminal, and the third normally open terminal are each electrically connected to different output interfaces.

[0022] With the above settings, the third micro switch can be configured to adapt the indicator component to changeover switches with a variety of working states, so as to accurately provide feedback on the various working states of the indicator component.

[0023] Secondly, this application provides a changeover switch including any of the indicating components described in the first aspect above.

[0024] Optionally, the working states of the changeover switch include a first on state, a second on state, and a dual off state. The changeover switch includes a switching mechanism that can control the changeover switch to switch working states and drive the first micro switch or the second micro switch.

[0025] The advantages of the switch provided in the second aspect and the various possible designs of the second aspect can be seen in the advantages of the first aspect and the various possible implementations of the first aspect, and will not be repeated here. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of an indicator component according to an embodiment of this application.

[0027] Figure 2 This is a schematic diagram of the electrical connection between a first micro switch and a second micro switch according to an embodiment of this application.

[0028] Figure 3 This is a schematic diagram of the electrical connection of a first micro switch, a second micro switch, and a third micro switch according to an embodiment of this application.

[0029] Explanation of reference numerals in the attached figures: 100: Indicator component; 10: First micro switch; 11: First common terminal; 12: First normally open terminal; 13: First normally closed terminal; 14: First trigger element; 20: Second micro switch; 21: Second common terminal; 22: Second normally open terminal; 23: Second normally closed terminal; 24: Second trigger element; 30: Output terminal; 301: Output interface; 302: Signal interface; 31: First interface; 32: Second interface; 33: Third interface; 40: Circuit board; 50: Third micro switch; 51: Third common terminal; 52: Third normally open terminal; 53: Third normally closed terminal. Detailed Implementation

[0030] 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.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit 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.

[0032] 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.

[0033] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists, A and B exist simultaneously, or B exists. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0034] The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this application. For example, in the description of this application, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0035] 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.

[0036] In the description of this application, unless otherwise stated, "multiple" means two or more (including two), and similarly, "multiple groups" means two or more (including two groups).

[0037] 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 fixed by spacers, such as a connection fixed by 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 based on the specific circumstances.

[0038] It should be understood that the phrase "one embodiment" or "an embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of this application. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.

[0039] This application provides a changeover switch, including as follows: Figure 1The indicator component 100 is shown. In a changeover switch equipped with the indicator component 100, when the changeover switch switches between operating states, the indicator component 100 can output indicator signals to the outside through different output interfaces 301 of the output terminal 30 to provide feedback on the operating state of the changeover switch. The indicator component 100 proposed in this application has a low cost, which in turn reduces the cost of the changeover switch.

[0040] A transfer switch is a switching device that can switch a load between multiple power sources. In a dual-power system, which may include a main power source and a backup power source, the transfer switch connects the dual-power system to the load and controls the connection status of the load to different power sources.

[0041] Thus, the transfer switch has different operating states: a first ON state, a second ON state, and a dual-disconnect state. In the first ON state, the transfer switch can connect the main power supply and the load; in the second ON state, the transfer switch can connect the backup power supply and the load; and in the dual-disconnect state, the transfer switch can disconnect the dual power supply connection of the load.

[0042] The changeover switch includes a switching mechanism that controls the changeover switch to switch its operating state and drives the first micro switch 10 or the second micro switch 20.

[0043] In this way, the changeover switch can cooperate with the indicator component 100 through the switching mechanism, so that the first micro switch 10 or the second micro switch 20 can be driven based on the action of the switching mechanism, so that the output terminal 30 can output an indicator signal.

[0044] Understandably, the switching mechanism is the control component in the changeover switch, and its movement controls the changeover switch to switch between different operating states. During the switching process, the changeover switch can also drive the first microswitch 10 or the second microswitch 20. This allows the mechanical movement of the switching mechanism to be converted into electrical signals, which are then output from different output interfaces 301, enabling external detection devices or operators to determine the switch's operating status based on these signals. Furthermore, the switching mechanism's driving of the indicating component 100 ensures timely and reliable operation of the indicating component 100 by the changeover switch.

[0045] The indicator component 100 provided in the embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0046] Reference Figure 1 and Figure 2As shown, this application provides an indicating component 100. The indicating component 100 includes a first micro switch 10, a second micro switch 20, and an output terminal 30. In the embodiments of this application, the first micro switch 10, the second micro switch 20, and the output terminal 30 can cooperate to indicate various operating states of a changeover switch, so as to provide feedback on the operating state of the changeover switch to external detection devices or operators, thereby realizing the monitoring and control of the changeover switch and the circuit in which the changeover switch is located.

[0047] In this application, the first micro switch 10 includes a first common terminal 11, a first normally open terminal 12, and a first normally closed terminal 13. The first common terminal 11 can be selectively connected to the first normally open terminal 12 or to the first normally closed terminal 13. The second micro switch 20 includes a second common terminal 21, a second normally open terminal 22, and a second normally closed terminal 23. The second common terminal 21 can be selectively connected to the second normally open terminal 22 or to the second normally closed terminal 23, and the second common terminal 21 is electrically connected to the first normally closed terminal 13.

[0048] A micro switch is a fast-acting mechanical switch that can change the state of its internal contacts based on external force. Specifically, the contact states of a micro switch can include a triggered state and a released state.

[0049] Specifically, for the first micro switch 10, when the first micro switch 10 receives an external force, the first micro switch 10 is in the triggered state, at which time the first common terminal 11 is connected to the first normally open terminal 12. After the external force applied to the first micro switch 10 is removed, the first micro switch 10 is in the released state, and the first common terminal 11 is connected to the first normally closed terminal 13.

[0050] Similarly, for the second micro switch 20, when the second micro switch 20 receives an external force, the second micro switch 20 is in the triggered state, at which time the second common terminal 21 is connected to the second normally open terminal 22. After the external force applied to the second micro switch 20 is removed, the second micro switch 20 is in the released state, and the second common terminal 21 is connected to the second normally closed terminal 23.

[0051] The interaction between the first microswitch 10 and the second microswitch 20 and the output terminal 30 is described below. The first common terminal 11 is electrically connected to the output terminal 30, which is used to connect to the power supply component. In this way, the power supply component can provide electrical signals to the first microswitch 10 and the second microswitch 20 through the output terminal 30, so that the power supply component, the output terminal 30, the first microswitch 10, and the second microswitch 20 can form a circuit, so that the output terminal 30 can output an indication signal.

[0052] In this embodiment, the output terminal 30 of the indicator has multiple output interfaces 301, and the first normally open terminal 12, the second normally open terminal 22, and the second normally closed terminal 23 are electrically connected to different output interfaces 301. Thus, the power supply, output terminal 30, first microswitch 10, and second microswitch 20 can form different indicator circuits based on the state of the changeover switches. Consequently, in different indicator circuits, different output interfaces 301 can generate indicator signals.

[0053] The indicator component 100 proposed in this application is used to be installed in a changeover switch. The changeover switch has different operating states. When the changeover switch switches between operating states, it can drive a first microswitch 10 or a second microswitch 20 to change the connection mode of the first common terminal 11 or the second common terminal 21, so that different output interfaces 301 generate indicator signals. In this way, the operating state of the changeover switch can be determined according to the output interface 301 that generates the indicator signal.

[0054] The driving of the first micro switch 10 by the selector switch not only refers to the selector switch applying an external force to the first micro switch 10, but also includes the selector switch canceling the external force on the first micro switch 10. Similarly, the driving of the second micro switch 20 by the selector switch not only refers to the selector switch applying an external force to the second micro switch 20, but also includes the selector switch canceling the external force on the second micro switch 20.

[0055] In summary, in this embodiment, the selector switch can change the contact state of one of the first microswitch 10 and the second microswitch 20, so that the output terminal 30 can output an indication signal through the first interface 31, the second interface 32, or the third interface 33. Thus, the indicator component 100 can clearly indicate the different operating states of the selector switch. Therefore, this application can indicate three operating states using only two microswitches and the output terminal 30, which is more cost-effective than using a separate indicator for each operating state in related technologies.

[0056] Furthermore, in this configuration, the actuation of the first microswitch 10 and the second microswitch 20 originates from the driving force applied or removed by the changeover switch, relying on mechanical transmission. This simplifies and simplifies the electrical connections and coordination between the various components of the indicating assembly 100, thereby improving the reliability and safety of the indicating assembly 100. In particular, compared to related technologies where multiple indicators are electrically connected to the internal components of the changeover switch to provide feedback on the switch's operating status, this configuration significantly reduces the complexity of the electrical connections between components and minimizes the possibility of leakage.

[0057] In some embodiments, the output terminal 30 has a first interface 31, a second interface 32, and a third interface 33, which together form a plurality of output interfaces 301. The first interface 31 is electrically connected to a first normally open terminal 12, the second interface 32 is electrically connected to a second normally open terminal 22, and the third interface 33 is electrically connected to a second normally closed terminal 23.

[0058] Thus, when the indicator component 100 indicates the working state of the changeover switch, one of the first interface 31, the second interface 32, and the third interface 33 can output an indicator signal.

[0059] This combination Figure 1 and Figure 2 The specific working principle of the first micro switch 10, the second micro switch 20, and the output terminal 30 is explained as follows.

[0060] When the first microswitch 10 is driven by the changeover switch and subjected to force, the first microswitch 10 is in a triggered state, which connects the first common terminal 11 with the first normally open terminal 12, while disconnecting the first common terminal 11 from the first normally closed terminal 13. At this time, an indicator circuit can be formed between the power supply component, the first common terminal 11, the first normally open terminal 12, and the first interface 31, and an indicator signal is generated at the first interface 31.

[0061] When the second microswitch 20 is driven by the changeover switch and subjected to force, the second microswitch 20 is in a triggered state, causing the second common terminal 21 to connect with the second normally open terminal 22, while disconnecting the second common terminal 21 from the second normally closed terminal 23. At this time, an indicator circuit can be formed between the power supply component, the first common terminal 11, the first normally closed terminal 13, the second common terminal 21, the second normally open terminal 22, and the second interface 32, and an indicator signal is generated at the second interface 32.

[0062] When neither the first microswitch 10 nor the second microswitch 20 is subjected to external force by the changeover switch, both the first microswitch 10 and the second microswitch 20 are in the released state. At this time, an indicator circuit can be formed between the power supply component, the first common terminal 11, the first normally closed terminal 13, the second common terminal 21, the second normally closed terminal 23, and the third interface 33. At this time, an indicator signal is generated at the third interface 33.

[0063] In this embodiment, the indicator component 100 may further include a first indicator, a second indicator, and a third indicator. The first indicator is connected to a first interface 31, the second indicator is connected to a second interface 32, and the third indicator is connected to a third interface 33.

[0064] Therefore, when an indication signal is generated at the first interface 31, the first indicator can output an intuitive signal based on the indication signal to indicate the state of the first micro switch 10 being driven by the changeover switch. The operator or user can intuitively judge the working state of the changeover switch at this time.

[0065] Specifically, the first indicator is a component or device capable of converting an electrical signal into a signal easily perceived by the user, such as a light signal, a sound signal, or a motion signal. The first indicator may be an indicator light, a buzzer, or a pointer, etc. The specific type of the first indicator is not specifically limited in this embodiment.

[0066] Similarly, when an indication signal is generated at the second interface 32, the second indicator can output a signal based on the indication signal. When an indication signal is generated at the third interface 33, the third indicator can output a signal based on the indication signal, which makes it easier for staff or users to determine the working status of the switch.

[0067] The second and third indicators are also components or devices that can convert electrical signals into signals that are easily perceived by the user.

[0068] It should be noted that the correspondence between the indicator signal output by the indicator component 100 and the working state of the changeover switch is not specifically limited in this embodiment of the application. It can be specifically set according to the specific structure, working principle and connection method of the changeover switch with the dual power supply.

[0069] For example, when the selector switch is in the first ON state, the first micro switch 10 can be in the triggered state and the second micro switch 20 can be in the released state. At this time, the first interface 31 generates an indication signal. When the selector switch is in the second ON state, the second micro switch 20 can be in the triggered state and the first micro switch 10 can be in the released state. At this time, the second interface 32 generates an indication signal. When the selector switch is in the dual-open state, both the first micro switch 10 and the second micro switch 20 are in the released state.

[0070] Alternatively, when the selector switch is in the first ON state, the second micro switch 20 can be in the triggered state, and the first micro switch 10 can be in the released state. When the selector switch is in the second ON state, the first micro switch 10 can be in the triggered state, and the second micro switch 20 can be in the released state. When the selector switch is in the dual-open state, both the first micro switch 10 and the second micro switch 20 are in the released state.

[0071] To make the principles of this application clearer, the specific structures of the first micro switch 10 and the second micro switch 20 are described herein.

[0072] like Figure 2 As shown, the first micro switch 10 includes a first trigger element 14. A first common terminal 11 is electrically connected to the first trigger element 14. A first break is formed between a first normally open terminal 12 and a first normally closed terminal 13. The first trigger element 14 extends to the first break and can selectively communicate with either the first normally open terminal 12 or the first normally closed terminal 13. That is, the position of the first trigger element 14 is not fixed and can be controlled to change the connection mode of the first common terminal 11. In other words, the first micro switch 10 can receive the drive of a changeover switch through the first trigger element 14.

[0073] Similarly, the second micro switch 20 includes a second trigger element 24, a second common terminal 21 electrically connected to the second trigger element 24, a second break formed between the second normally open terminal 22 and the second normally closed terminal 23, and the second trigger element 24 extending to the second break. The second trigger element 24 can selectively communicate with either the second normally open terminal 22 or the second normally closed terminal 23. In this way, the second micro switch 20 can receive the drive of a changeover switch through the second trigger element 24.

[0074] That is, the first trigger element 14 is the component in the first micro switch 10 that receives the drive, and the second trigger element 24 is the component in the second micro switch 20 that receives the drive. Therefore, in order for the first micro switch 10 or the second micro switch 20 to receive the drive during the switching of the changeover switch's working state, so that the first interface 31, the second interface 32, or the third interface 33 generates an indication signal, the switching mechanism of the changeover switch can specifically cooperate with the first trigger element 14 and the second trigger element 24, so that the changeover switch can drive the first trigger element 14 or the second trigger element 24.

[0075] In some embodiments, such as Figure 1 and Figure 2 As shown, the indicator component 100 may also include a circuit board 40 for connecting the power supply component. The first micro switch 10, the second micro switch 20 and the output terminal 30 are all mounted on the circuit board 40, and the output terminal 30 is electrically connected to the circuit board 40.

[0076] With the above configuration, on the one hand, the circuit board 40 serves as a mechanical carrier, providing support for the output terminal 30, the first micro switch 10, and the second micro switch 20, which facilitates the installation and fixing of the output terminal 30, the first micro switch 10, and the second micro switch 20.

[0077] On the other hand, the circuit board 40 itself is an electrical connection structure, and the output terminal 30 can be directly electrically connected to the circuit board 40. When the circuit board 40 is connected to a power supply component, the power supply component can supply power to the output terminal 30 through the circuit board 40, which facilitates the output terminal 30 to receive electrical signals and forms a circuit between the power supply component, the circuit board 40, the output terminal 30, the first micro switch 10, and the second micro switch 20.

[0078] It should be noted that a control unit is also provided inside the changeover switch to ensure the safety and reliability of the power switching. The control unit includes a control circuit board. The circuit board 40 in the aforementioned indicator component 100 can be integrated with the control circuit board, or the control circuit board can be directly used as the circuit board 40 in the indicator component 100, or the circuit board 40 and the control circuit board can be independent of each other, etc. The embodiments of this application do not specifically limit this.

[0079] In some embodiments, such as Figure 1 and Figure 2 As shown, the output terminal 30 also has a signal interface 302, and the first common terminal 11 can be electrically connected to the signal interface 302. Thus, the first common terminal 11 is directly electrically connected to the output terminal 30 through the signal interface 302, making the electrical connection between the first common terminal 11 and the output terminal 30 more convenient and reliable. Specifically, the path formed between the circuit board 40 and the first micro switch 10 extends from the circuit board 40, through the output terminal 30 and the signal interface 302 to the first common terminal 11.

[0080] Among them, signal interface 302, the aforementioned first interface 31, second interface 32, and third interface 33 are different interfaces of output terminal 30. The structural configuration of these multiple interfaces can be consistent, thus reducing the increased labor costs associated with distinguishing different interfaces when setting different terminals of the first microswitch 10 and the second microswitch 20 to be electrically connected to different interfaces. Furthermore, in this configuration, output terminal 30 can be a traditional terminal block or other electrical connector, offering high versatility and further reducing the cost of the indicating component 100.

[0081] Of course, the structures of signal interface 302, first interface 31, second interface 32 and third interface 33 can also be different, as long as the output terminal 30 can be connected to two microswitches through multiple interfaces respectively. In this regard, the embodiments of this application do not make specific limitations.

[0082] It should be noted that the first common terminal 11 can also be directly electrically connected to the circuit board 40. Alternatively, the first common terminal 11 can be electrically connected to the output terminal 30 through the circuit board 40, thus forming a circuit between the power supply component, the circuit board 40, the output terminal 30, and the first micro switch 10.

[0083] In the embodiments of this application, the first micro switch 10 and the second micro switch 20 can be electrically connected in different ways. The following two methods are used as examples for illustration.

[0084] In one method, the circuit board 40 is provided with etched lines. A first pad and a second pad are provided at both ends of an etched line. The first normally closed terminal 13 is connected to the first pad, and the second common terminal 21 is connected to the second pad.

[0085] In this way, connecting the first normally closed terminal 13 and the second common terminal 21 to the circuit board 40 achieves an electrical connection between them, improving the connection efficiency. Furthermore, the circuit board 40 also provides support for the first microswitch 10 and the second microswitch 20. Therefore, the circuit board 40 integrates both support and electrical connection functions, reducing the potential for increased costs and reduced installation efficiency due to additional support or connection structures.

[0086] Method 2: A conductive element is connected between the first normally closed terminal 13 and the second common terminal 21.

[0087] In this way, the first normally closed terminal 13 and the second common terminal 21 can also be electrically connected through an additional conductive element, which also allows the power supply, circuit board 40, output terminal 30, first micro switch 10 and second micro switch 20 to form a circuit, so that the indicator component 100 can output an indicator signal based on the different working states of the changeover switch.

[0088] It should be noted that the conductive component can also be different parts, such as wires, copper busbars or conductive strips, etc. This application does not specifically limit this, as long as the conductive component is conductive and can realize the electrical connection between the first normally closed terminal 13 and the second common terminal 21.

[0089] It is understandable that the circuit board 40 may not be included in the indicator component 100. In this case, a support member can be provided inside the changeover switch, and the first micro switch 10, the second micro switch 20, and the output terminal 30 can be fixed by the support member. The electrical connection between the output terminal 30 and the power supply component can also be achieved by additional wiring, etc.

[0090] In summary, when the indicating component 100 includes a first microswitch 10, a second microswitch 20, and an output terminal 30, it can indicate three operating states of the changeover switch. However, in practice, the changeover switch may have more than three operating states.

[0091] For example, in a power system, there are a main power supply, a backup power supply, and an emergency power supply. In this case, a transfer switch can control the load to connect to any one of these power sources. The transfer switch has four operating states: a first state where the main power supply is connected, a second state where the backup power supply is connected, a third state where the emergency power supply is connected, and a third state where none of the three power sources are connected.

[0092] The indicator component 100 proposed in this application can also indicate the operating status of the changeover switch applied in the above-mentioned scenarios. For example... Figure 1 and Figure 3 As shown, the indicating component 100 also includes a third micro switch 50, which includes a third common terminal 51, a third normally open terminal 52, and a third normally closed terminal 53. The third common terminal 51 can be selectively connected to the third normally open terminal 52 or to the third normally closed terminal 53. The third micro switch 50 can also switch between a released state and a triggered state based on a drive.

[0093] The third common terminal 51 is electrically connected to the first normally closed terminal 13, and the third normally closed terminal 53 is electrically connected to the second common terminal 21. That is, the third micro switch 50 is connected between the first micro switch 10 and the second micro switch 20. The first normally open terminal 12, the second normally open terminal 22, the second normally closed terminal 23, and the third normally open terminal 52 are each electrically connected to different output interfaces 301. Thus, the first micro switch 10, the second micro switch 20, and the third micro switch 50 can cooperate to output different indicator signals to the output terminal 30. At this time, the output terminal 30 can also have a fourth interface, and the third normally open terminal 52 can be electrically connected to the fourth interface.

[0094] refer to Figure 3 The specific working principle of the first micro switch 10, the second micro switch 20, the third micro switch 50 and the output terminal 30 is explained as follows.

[0095] When the selector switch is in the first ON state, it can drive the first micro switch 10 to be in the triggered state, while the second micro switch 20 and the third micro switch 50 are both in the released state. At this time, an indicator circuit can be formed between the power supply component, the signal interface 302, the first common terminal 11, the first normally open terminal 12, and the first interface 31, and an indicator signal is generated at the first interface 31.

[0096] When the selector switch is in the second ON state, it can drive the second micro switch 20 to the triggered state, while the first micro switch 10 and the third micro switch 50 are both in the released state. At this time, an indicator circuit can be formed between the power supply component, signal interface 302, first common terminal 11, first normally closed terminal 13, third common terminal 51, third normally closed terminal 53, second common terminal 21, second normally open terminal 22, and second interface 32, and an indicator signal is generated at the second interface 32.

[0097] When the selector switch is in the third ON state, it can drive the third micro switch 50 to the triggered state, while the first micro switch 10 and the second micro switch 20 are both in the released state. At this time, an indicator circuit can be formed between the power supply component, signal interface 302, first common terminal 11, first normally closed terminal 13, third common terminal 51, third normally open terminal 52, and fourth interface, and an indicator signal is generated at the fourth interface.

[0098] When the selector switch is in the three-position state, the first microswitch 10, the second microswitch 20, and the third microswitch 50 are not driven by the selector switch, and all three are in the released state. At this time, an indicator circuit can be formed between the power supply component, the signal interface 302, the first common terminal 11, the first normally closed terminal 13, the third common terminal 51, the third normally closed terminal 53, the second common terminal 21, the second normally closed terminal 23, and the third interface 33. At this time, an indicator signal is generated at the third interface 33.

[0099] Furthermore, when the indicator component 100 also includes a third micro switch 50, the indicator component 100 is not limited to the above-mentioned scenario, but can also be used as a changeover switch in a dual power supply system. In this case, the third micro switch 50 may not be connected to the output terminal 30, and the indicator component 100 still transmits the indicator signal to the output terminal 30 through the first normally open terminal 12, the second normally open terminal 22, and the second normally closed terminal 23.

[0100] It is understood that the above description is only one possible way to drive the indicating component 100 in various operating states of the changeover switch, but the above description does not limit this application. For example, when the changeover switch is in the first ON state, the second micro switch 20 may be in the triggered state; when the changeover switch is in the second ON state, the third micro switch 50 may be in the triggered state; when the changeover switch is in the third ON state, the first micro switch 10 may be in the triggered state, and so on. This application does not specifically limit which micro switch is driven for each operating state of the changeover switch.

[0101] Finally, it should be noted that the above embodiments are merely specific implementations of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An indicator component applied to a changeover switch, characterized in that, The indicating component includes: The first micro switch includes a first common terminal, a first normally open terminal, and a first normally closed terminal. The first common terminal can be selectively connected to the first normally open terminal or to the first normally closed terminal. The second micro switch includes a second common terminal, a second normally open terminal, and a second normally closed terminal. The second common terminal can be selectively connected to the second normally open terminal or to the second normally closed terminal, and the second common terminal is electrically connected to the first normally closed terminal. The output terminal is used to connect to the power supply component. The first common terminal is electrically connected to the output terminal. The output terminal has multiple output interfaces. The first normally open terminal, the second normally open terminal, and the second normally closed terminal are respectively electrically connected to different output interfaces. The changeover switch has different operating states. When the changeover switch switches between operating states, it can drive the first micro switch or the second micro switch to change the connection mode of the first common terminal or the second common terminal, so that different output interfaces generate indication signals.

2. The indicating component according to claim 1, characterized in that, The first micro switch includes a first trigger element, the first common terminal is electrically connected to the first trigger element, a first break is formed between the first normally open terminal and the first normally closed terminal, the first trigger element extends to the first break, and the first trigger element can selectively communicate with the first normally open terminal or the first normally closed terminal. The second micro switch includes a second trigger element, the second common terminal is electrically connected to the second trigger element, a second break is formed between the second normally open terminal and the second normally closed terminal, the second trigger element extends to the second break, and the second trigger element can selectively communicate with the second normally open terminal or the second normally closed terminal; The first trigger element and the second trigger element are used to receive the drive of the changeover switch.

3. The indicating component according to claim 1, characterized in that, The indicating component also includes a circuit board for connecting a power supply component. The first micro switch, the second micro switch, and the output terminal are all mounted on the circuit board, and the output terminal is electrically connected to the circuit board.

4. The indicating component according to claim 3, characterized in that, The output terminal also has a signal interface, and the first common terminal is electrically connected to the signal interface.

5. The indicating component according to claim 3, characterized in that, The circuit board is provided with etched lines, and a first pad and a second pad are respectively provided at both ends of the etched lines. The first normally closed terminal is connected to the first pad, and the second common terminal is connected to the second pad.

6. The indicating component according to claim 3, characterized in that, A conductive element is connected between the first normally closed terminal and the second common terminal.

7. The indicating component according to claim 1, characterized in that, The output terminal has a first interface, a second interface, and a third interface, and the first interface, the second interface, and the third interface form a plurality of output interfaces; The first interface is electrically connected to the first normally open terminal, the second interface is electrically connected to the second normally open terminal, and the third interface is electrically connected to the second normally closed terminal. The indicator component further includes a first indicator, a second indicator, and a third indicator, wherein the first indicator is connected to the first interface, the second indicator is connected to the second interface, and the third indicator is connected to the third interface.

8. The indicating component according to any one of claims 1-7, characterized in that, The indicating component further includes a third micro switch, which includes a third common terminal, a third normally open terminal, and a third normally closed terminal. The third common terminal can be selectively connected to the third normally open terminal or to the third normally closed terminal. The third common terminal is electrically connected to the first normally closed terminal, the third normally closed terminal is electrically connected to the second common terminal, and the first normally open terminal, the second normally open terminal, the second normally closed terminal, and the third normally open terminal are respectively electrically connected to different output interfaces.

9. A changeover switch, characterized in that, The selector switch includes the indicator component according to any one of claims 1-8.

10. The changeover switch according to claim 9, characterized in that, The working states of the changeover switch include a first on state, a second on state, and a dual off state. The changeover switch includes a switching mechanism that can control the changeover switch to switch working states and drive the first micro switch or the second micro switch.

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