A method, device, and system for indicating the opening and closing of a high-voltage switch.

Abstract

This invention relates to the technical field of high-voltage switchgear, specifically to a method, device, and system for indicating the opening and closing of a high-voltage switch. The system includes a signal transmission circuit comprising a power supply, an opening / closing indicator, and a microswitch controlling the on / off state of the signal transmission circuit. The system also includes a trigger element that activates the microswitch, which is mounted on the opening / closing transmission component of the moving contact of the high-voltage switch. Therefore, the arrangement of the opening / closing indicator system is not limited by space, location, size, or structure, and it eliminates the need for mechanical transmission. This solves the technical problems of complex mechanical transmission structures, high failure rates, and inflexible layouts in existing high-voltage switch opening / closing indication technologies.

Description

Technical Field

[0001] This invention relates to the technical field of high-voltage switchgear, specifically to a high-voltage switch opening and closing indication method, device, and system. Background Technology

[0002] In high-voltage switchgear, the switch has two states: open and closed. Since the internal structure of the equipment cannot be directly observed, an open / close indicator is generally used to display the open / closed status of the high-voltage switch. This allows the operator to observe the status of the high-voltage switch and determine whether the internal structure of the switch is in the appropriate open / closed state.

[0003] In the prior art, Chinese utility model patents such as CN204270966U (authorization announcement number) and CN214099490U (authorization announcement number) disclose the relevant structure of the circuit breaker and the opening / closing indicator device for displaying the opening / closing status of the circuit breaker. Both of these opening / closing indicator devices transmit the opening / closing action of the circuit breaker to the opening / closing indicator plate through mechanical transmission, thereby causing the opening / closing indicator plate to change position, and then using the position change of the opening / closing indicator plate to display the opening / closing status.

[0004] However, mechanical transmission requires multiple intermediate transmission structures to transmit the opening and closing actions to the opening and closing indicator, resulting in a complex overall structure. Furthermore, it is prone to jamming due to wear and tear during use, leading to a high failure rate and significant cost. Jamming in the mechanical transmission structure can affect the circuit breaker's opening and closing actions, impacting the entire circuit breaker's operation. Mechanical transmission also causes substantial energy loss in the transmission system used to drive the circuit breaker's opening and closing actions, affecting the overall performance of the circuit breaker. Moreover, the layout of mechanical transmission is limited by structural constraints, making it inflexible. Different mechanical structures need to be designed separately for different high-voltage switches, preventing modularization and resulting in low versatility. Summary of the Invention

[0005] The purpose of this invention is to provide a high-voltage switch opening and closing indication method to solve the technical problems of complex mechanical transmission structure and inflexible layout of high-voltage switch opening and closing indication in the prior art. The invention also aims to provide an opening and closing indication device to solve the technical problems of complex mechanical transmission structure and inflexible layout of high-voltage switch opening and closing indication in the prior art. Furthermore, the invention provides an opening and closing indication system to solve the technical problems of complex mechanical transmission structure and inflexible layout of high-voltage switch opening and closing indication in the prior art.

[0006] To achieve the above objectives, the technical solution of the high-voltage switch opening and closing indication method of the present invention is as follows:

[0007] A method for indicating the opening and closing of a high-voltage switch includes: converting the mechanical action of opening and closing the high-voltage switch into an electrical signal in a signal transmission circuit, and the opening and closing indication device indicating the opening and closing based on the electrical signal.

[0008] Beneficial Effects: This invention innovatively designs a high-voltage switch opening and closing indication method. This method utilizes electrical signals to control the operation of the opening and closing indication device, thus freeing the device from spatial, positional, and distance limitations. The device can be placed at any suitable location on the high-voltage switch, resulting in a flexible overall layout and a compact structure. Furthermore, using electrical signals to control the device avoids complex mechanical transmission structures between the control contact's opening and closing transmission system and the indication device. This prevents high failure rates, high costs, and high energy consumption associated with mechanical transmission structures. Simultaneously, it allows for modular production of the entire device, making it applicable to any type of high-voltage switch, improving applicability and reducing production costs. In summary, this invention solves the technical problems of complex mechanical transmission structures and inflexible layouts in existing high-voltage switch opening and closing indication methods.

[0009] Furthermore, the high-voltage switch controls the on / off state of the signal transmission circuit through a triggering device on the moving contact transmission component and a micro switch that cooperates with the triggering device. The electrically controlled opening and closing device outputs the opening and closing status indication of the high-voltage switch according to the on / off state of the signal transmission circuit.

[0010] Beneficial effects: Through the above design, the on / off status indication of the high-voltage switch is output by controlling the on / off state of the signal transmission circuit. The operation is simple, and the transmission of electrical signals in the line can avoid current interference in the high-voltage switch, thereby improving the stability and reliability of the electrical signal transmission.

[0011] Furthermore, the on / off state of the electromagnet of the opening / closing indicator device is controlled by the on / off state of the signal transmission circuit. The movement of the electromagnet's core drives the opening / closing indicator to move, thereby indicating the opening / closing state.

[0012] Beneficial effects: The above design uses electrical signals to control the on and off of the electromagnet, which is simple to control, reliable in operation, and the electromagnet has a fast response speed and high stability.

[0013] To achieve the above objectives, the technical solution of the opening and closing indicator device of the present invention is as follows:

[0014] A circuit breaker opening and closing indicator includes a device frame and a circuit breaker opening and closing indicator assembly. An electromagnet is provided on the device frame, and the core of the electromagnet is drivenly connected to a movable indicator element of the circuit breaker opening and closing indicator assembly. A fixed indicator engagement structure is also provided on the device frame to cooperate with the movable indicator element of the circuit breaker opening and closing indicator assembly to indicate the opening and closing status. When the core of the electromagnet moves to two extreme positions, the movable indicator element cooperates with the fixed indicator engagement structure to indicate the opening and closing status.

[0015] Beneficial Effects: This invention innovatively designs a circuit breaker opening and closing indicator device. The movable indicator is positioned at the output end of an electromagnet, and the electromagnet is controlled to move the indicator. Because the electromagnet is driven by current, the original mechanical transmission structure can be transformed into an electric drive. Furthermore, the electromagnet can be controlled via wired or wireless means. Therefore, the position of the circuit breaker opening and closing indicator device is not limited by space, distance, or size, and can be placed at any suitable location on the high-voltage switch. This flexible and convenient arrangement eliminates the problem of inflexible layout caused by mechanical transmission. Simultaneously, it eliminates the need for a mechanical transmission structure with a load inside the high-voltage switch, resulting in a simple overall structure. In summary, the circuit breaker opening and closing indicator device of this invention solves the technical problems of complex mechanical transmission structures and inflexible layouts in existing high-voltage switch circuit breaker opening and closing indication technologies.

[0016] Furthermore, the active indicator is an active indicator plate, which has an open indicator and an closed indicator. The fixed indicator mating structure is a shield with an indicator hole. When the iron core of the electromagnet moves to the two active limit positions, the open indicator and the closed indicator move to the positions corresponding to the indicator holes and are exposed.

[0017] Beneficial effects: Through the above design, the movable indicator is designed as a movable sign with a simple overall structure. At the same time, the movable sign is driven by an electromagnet to move in a straight line, and the movement method is simple and reliable.

[0018] Furthermore, the device frame is a movable indicator sign, the rectangular box includes a front box wall, the movable indicator sign is arranged inside the rectangular box and close to the front box wall, the movable indicator sign moves along the length direction of the rectangular box, and the indicator hole is set at the corresponding position on the front box wall.

[0019] Beneficial effects: Placing the movable indicator sign close to the front box wall allows the front box wall to limit the position of the movable indicator sign, while ensuring that the open and closed indicators can be accurately observed through the indicator holes, resulting in accurate indication.

[0020] Furthermore, a guide groove extending along the length of the rectangular box is formed between the front wall and the two side walls of the rectangular box, and the two opposite edges of the movable indicator slide in a guide groove.

[0021] Beneficial effects: Through the above design, the guide groove can ensure the smooth movement of the movable sign, and at the same time, it can ensure that the movable sign is always placed close to the front box wall, thus ensuring the accuracy of the movable sign.

[0022] Furthermore, the activity indicator includes a front side plate and a rear side plate arranged at intervals along the front-back direction, which are connected by a connector. A guide groove extending along the length of the rectangular box is also formed between the rear box wall and the two side walls, and the two opposite edges of the rear side plate slide in cooperation with the limiting groove.

[0023] Beneficial effects: Through the above design, the movable sign is designed in the form of a front side panel and a rear side panel, and guide grooves are set in the rectangular box for both the front side panel and the rear side panel. As a result, when the electromagnet drives the movable sign to move, the movable sign is subjected to balanced force and stable operation. At the same time, the movable sign will not be subjected to eccentric torque, ensuring service life and accurate indication.

[0024] Furthermore, the rectangular box is provided with a limiting structure, which is used to limit the movement of the open and closed indicators on the active indicator to the positions corresponding to the indicator holes.

[0025] Beneficial effects: Through the above design, the limit structure can ensure that both the open and closed indicators move accurately to the indicator hole for observation, thus ensuring accurate indication.

[0026] Furthermore, the limiting structure is a limiting groove extending along the length direction on the rear wall of the rectangular box, and the movable indicator is provided with a limiting pin for sliding cooperation with the limiting groove.

[0027] Beneficial effects: The above structure is simple and easy to operate.

[0028] To achieve the above objectives, the technical solution of the opening and closing indication system of the present invention is as follows:

[0029] A circuit breaker opening and closing indication system includes a signal transmission circuit, which includes a power supply, a circuit breaker opening and closing indication device, and a microswitch for controlling the opening and closing of the signal transmission circuit. The circuit breaker opening and closing indication system also includes a trigger element for triggering the microswitch to close. The trigger element is used to be installed on the circuit breaker opening and closing transmission component of the moving contact of the high-voltage switch. The circuit breaker opening and closing indication device includes a device frame and a circuit breaker opening and closing indication assembly. An electromagnet is installed on the device frame, and the core of the electromagnet is drivenly connected to a movable indicator element of the circuit breaker opening and closing indication assembly. A fixed indication cooperation structure is also installed on the device frame to cooperate with the movable indicator element of the circuit breaker opening and closing indication assembly to indicate the opening and closing status. When the core of the electromagnet moves to two extreme positions, the movable indicator element cooperates with the fixed indication cooperation structure to indicate the opening and closing status.

[0030] Beneficial Effects: This invention innovatively designs a circuit breaker opening and closing indication system that uses a signal transmission circuit instead of mechanical transmission for circuit breaker opening and closing indication. This avoids the need for complex mechanical structures inside the high-voltage switch, resulting in a simpler overall structure and reducing the failure rate caused by complex mechanical structures. Furthermore, the circuit breaker opening and closing indication device is flexible in its placement, not limited by space, location, or distance, and can be placed at any suitable location on the high-voltage switch. Since there is no mechanical transmission structure, it avoids the high failure rate, high cost, and high energy consumption associated with mechanical transmission structures. In summary, the circuit breaker opening and closing indication system of this invention solves the technical problems of complex mechanical transmission structures and inflexible layouts in existing high-voltage switch circuit breaker opening and closing indication technologies.

[0031] Furthermore, the active indicator is an active indicator plate, which has an open indicator and an closed indicator. The fixed indicator mating structure is a shield with an indicator hole. When the iron core of the electromagnet moves to the two active limit positions, the open indicator and the closed indicator move to the positions corresponding to the indicator holes and are exposed.

[0032] Beneficial effects: Through the above design, the movable indicator is designed as a movable sign with a simple overall structure. At the same time, the movable sign is driven by an electromagnet to move in a straight line, and the movement method is simple and reliable.

[0033] Furthermore, the device frame is a movable indicator sign, the rectangular box includes a front box wall, the movable indicator sign is arranged inside the rectangular box and close to the front box wall, the movable indicator sign moves along the length direction of the rectangular box, and the indicator hole is set at the corresponding position on the front box wall.

[0034] Beneficial effects: Placing the movable indicator sign close to the front box wall allows the front box wall to limit the position of the movable indicator sign, while ensuring that the open and closed indicators can be accurately observed through the indicator holes, resulting in accurate indication.

[0035] Furthermore, a guide groove extending along the length of the rectangular box is formed between the front wall and the two side walls of the rectangular box, and the two opposite edges of the movable indicator slide in a guide groove.

[0036] Beneficial effects: Through the above design, the guide groove can ensure the smooth movement of the movable sign, and at the same time, it can ensure that the movable sign is always placed close to the front box wall, thus ensuring the accuracy of the movable sign.

[0037] Furthermore, the activity indicator includes a front side plate and a rear side plate arranged at intervals along the front-back direction, which are connected by a connector. A guide groove extending along the length of the rectangular box is also formed between the rear box wall and the two side walls, and the two opposite edges of the rear side plate slide in cooperation with the limiting groove.

[0038] Beneficial effects: Through the above design, the movable sign is designed in the form of a front side panel and a rear side panel, and guide grooves are set in the rectangular box for both the front side panel and the rear side panel. As a result, when the electromagnet drives the movable sign to move, the movable sign is subjected to balanced force and stable operation. At the same time, the movable sign will not be subjected to eccentric torque, ensuring service life and accurate indication.

[0039] Furthermore, the rectangular box is provided with a limiting structure, which is used to limit the movement of the open and closed indicators on the active indicator to the positions corresponding to the indicator holes.

[0040] Beneficial effects: Through the above design, the limit structure can ensure that both the open and closed indicators move accurately to the indicator hole for observation, thus ensuring accurate indication.

[0041] Furthermore, the limiting structure is a limiting groove extending along the length direction on the rear wall of the rectangular box, and the movable indicator is provided with a limiting pin for sliding cooperation with the limiting groove.

[0042] Beneficial effects: The above structure is simple and easy to operate. Attached Figure Description

[0043] Figure 1 This is a schematic diagram of the signal transmission circuit of an embodiment 1 of the opening and closing indication system of the present invention;

[0044] Figure 2 This is a front view of the opening and closing indicator device of Embodiment 1 of the opening and closing indicator system of the present invention;

[0045] Figure 3 This is a left view of the opening and closing indicator device of Embodiment 1 of the opening and closing indicator system of the present invention;

[0046] Figure 4 This is a front view of the device frame of Embodiment 1 of the opening and closing indicator system of the present invention;

[0047] Figure 5 This is a left view of the device frame of Embodiment 1 of the opening and closing indicator system of the present invention;

[0048] Figure 6 This is a top view of the device frame of Embodiment 1 of the opening and closing indicator system of the present invention;

[0049] Figure 7 This is a front view of the active indicator sign of Embodiment 1 of the opening and closing indicator system of the present invention;

[0050] Figure 8 This is a left view of the active indicator sign of Embodiment 1 of the opening and closing indicator system of the present invention;

[0051] Figure 9This is a schematic diagram of the switching cam and micro switch in the open state of an embodiment 1 of the circuit breaker opening and closing indication system of the present invention;

[0052] Figure 10 This is a schematic diagram of the switching cam and micro switch working together in the closed state in Embodiment 1 of the opening and closing indication system of the present invention.

[0053] Explanation of reference numerals in the attached figures:

[0054] 1. Micro switch; 2. Power supply; 3. Opening / closing indicator; 31. Device frame; 311. Limit slot; 312. Guide slot; 313. Indicator hole; 32. Electromagnet; 33. Return spring; 34. Movable indicator; 341. Front side plate; 342. Rear side plate; 343. Positioning pin; 4. Connecting lines; 5. Switching cam. Detailed Implementation

[0055] The present invention provides a circuit breaker opening and closing indication system that uses a signal transmission circuit instead of a mechanical transmission structure to drive the opening and closing indicator to indicate the circuit breaker opening and closing. This avoids the need for a complex mechanical transmission structure inside the high-voltage switch, thereby avoiding the complexity and high energy consumption of the high-voltage switch caused by the mechanical transmission structure. Furthermore, the circuit breaker opening and closing indication system is not limited by position, space, or distance within the high-voltage switch, allowing for flexible layout and modular production.

[0056] The features and performance of the present invention will be further described in detail below with reference to embodiments.

[0057] Specific embodiment 1 of the opening and closing indication system provided by the present invention:

[0058] In this embodiment, Figure 2 This is a front view of the opening and closing indicator device 3. For ease of description, it is set as follows: Figure 2 The length direction of the opening / closing indicator 3 is set to the left-right direction, and the height direction of the opening / closing indicator 3 is set to the up-down direction. Figure 3 This is a left view of the opening and closing indicator device 3. For ease of description, the width direction of the opening and closing indicator device 3 is set to the front and back direction.

[0059] In this embodiment, as Figure 1 , 2 As shown in Figure 10, the opening and closing indication system includes a signal transmission circuit, which includes a power supply 2, an opening and closing indication device 3, and a micro switch 1 that controls the opening and closing of the signal transmission circuit. The opening and closing indication system also includes a trigger element that triggers the micro switch 1 to close. The trigger element is installed on the opening and closing transmission component of the moving contact of the high-voltage switch.

[0060] Specifically, in this embodiment, such as Figure 2 , 3As shown in the figure, the switching on-off indicating device 3 comprises a device frame 31 and a switching on-off indicating assembly, wherein the switching on-off indicating assembly comprises a movable indicator plate 34, the device frame 31 is a rectangular box, an electromagnet 32 is fixedly installed on the inner bottom surface of the rectangular box, an iron core is arranged on the output end of the electromagnet 32, a return spring 33 is arranged on the top surface of the device frame 31, the return spring 33 extends vertically as a whole, the movable indicator plate 34 is arranged between the electromagnet 32 and the return spring 33, wherein the electromagnet 32 is energized and moves upward when a high-voltage switch is switched on, and drives the movable indicator plate 34 to display a switching-off state, and is de-energized and moves downward to reset when the high-voltage switch is switched off, and drives the movable indicator plate 34 to display a switching-off state, the return spring 33 is used for cooperating with the electromagnet 32 to drive the movable indicator plate 34 to quickly display the switching-off state when the switch is switched off. A fixed indicating cooperation structure which cooperates with the movable indicator plate 34 of the switching on-off indicating assembly to indicate switching on-off is also arranged on the device frame 31, in this embodiment, as Figure 2 , 4 shown in the figures, the fixed indicating cooperation structure is an indicating hole 313 arranged in the front box wall of the rectangular box, when the iron core of the electromagnet 32 moves to two movable limit positions, an opening-off identifier and a switching-on identifier of the movable indicator plate 34 respectively move to positions corresponding to the indicating hole 313 and are exposed outside.

[0061] With this arrangement, the electromagnet 32 and the return spring 33 can be used to drive the switching on-off movement of the movable indicator plate 34, the driving mode and the control mode are relatively simple, the electromagnet 32 and the return spring 33 are arranged at two ends of the movable indicator plate 34 separately, which facilitates control and reduces internal transmission units as much as possible, simplifies the structure and reduces the failure rate, the cooperation between the electromagnet 32 and the return spring 33 can facilitate the control of the movable indicator plate 34, and can further simplify the overall transmission, reduce transmission elements and decrease use failures.

[0062] In this embodiment, in combination with Figure 7 , Figure 8 , the movable indicator plate 34 comprises a front side plate 341 and a rear side plate 342 which are oppositely arranged at intervals along the front-rear direction, the two are fixedly connected by connecting pieces, in this embodiment, the connecting pieces are two connecting cross rods arranged at intervals in the up-down direction, indicating identifiers are arranged on the front side plate 341, the indicating identifiers are a switching-off indication and a switching-on indication respectively along the up-down direction, a "OFF" character identifier is arranged on the switching-off indication, and a "ON" character identifier is arranged on the switching-on indication, two connecting rods arranged at upper and lower intervals are respectively fixedly connected with the lower end of the return spring 33 and the upper end of the iron core of the electromagnet 32, so as to complete the assembly of the movable indicator plate 34 with the return spring 33 and the electromagnet 32. In other embodiments, the connecting pieces can also be two connecting cross plates arranged at intervals, or in other embodiments, the connecting piece is a connecting cross plate, at this time, the upper end of the electromagnet 32 and the lower end of the return spring 33 are respectively fixedly connected to the upper end surface and the lower end surface of the connecting cross plate.

[0063] In this embodiment, the rectangular box is provided with a limiting structure for restricting the movement of the open and closed indicators on the movable indicator 34 to positions corresponding to the indicator holes 313. In this embodiment, the limiting structure is a limiting groove 311 extending along the length direction on the rear wall of the rectangular box, such as... Figure 5 As shown, the rear side plate 342 of the movable indicator 34 is provided with a limiting pin for sliding engagement with the limiting groove 311. When the high-voltage switch is in the closed position, the electromagnet 32 ​​is energized, and the iron core pushes the movable indicator 34 upwards, causing the return spring to contract so that the positioning pin 343 presses against the upper end of the groove wall of the limiting groove 311. When the high-voltage switch is in the open position, the electromagnet 32 ​​is de-energized, and the return spring presses down on the movable indicator 34 downwards so that the positioning pin 343 presses against the lower end of the groove wall of the limiting groove 311. Thus, the limiting groove 311, in conjunction with the positioning rod, positions the movable indicator 34. Furthermore, the limiting groove 311 can limit the vertical position of the movable indicator 34, and the structure is simple and easy to operate. Simultaneously, the limiting groove 311 can also guide the vertical movement of the open / close indicator.

[0064] In this embodiment, as Figure 3 , 6 As shown, guide grooves 312 extending along the length of the rectangular box are formed between the front side wall and the two side walls, and between the rear side wall and the two side walls. The front side plate 341 is guided and slidably engaged with the front guide groove 312, and the rear side plate 342 is guided and slidably engaged with the rear guide groove 312. In this way, on the one hand, the front side plate 341 with the opening and closing indicators can be attached to the front box wall, ensuring that the opening and closing indicators can be accurately observed through the indicator hole 313, and the indication is accurate. On the other hand, the two guide grooves 312 can be used to ensure the smooth movement of the movable indicator 34. At the same time, when the electromagnet 32 ​​drives the movable indicator 34 to move, the movable indicator 34 is subjected to balanced force and runs stably. At the same time, the movable indicator 34 will not be subjected to eccentric torque, ensuring the service life of the movable indicator 34 and the accuracy of the indication.

[0065] like Figure 9 , 10 As shown, in this embodiment, the trigger is a switching cam 5, which uses its contour surface to drive the micro switch 1 to switch on and off through rotational motion.

[0066] The operation of the opening and closing indication system of the present invention is as follows, which also embodies a method for indicating the opening and closing of a high-voltage switch:

[0067] The high-voltage switch controls the circuit on and off of the signal transmission circuit through the trigger element on the moving contact transmission component and the micro switch 1 that cooperates with the trigger element, thereby converting the mechanical action of opening and closing the high-voltage switch into an electrical signal of the signal transmission circuit. The on and off of the signal transmission circuit controls the on and off of the electromagnet 32 ​​of the opening and closing indicator device. The action of the iron core of the electromagnet 32 ​​drives the opening and closing indicator to act, thereby indicating the opening and closing.

[0068] Specifically, when the high-voltage switch is closed, the operating mechanism of the high-voltage switch transmits the action to the moving contact through the opening and closing transmission component. A switching cam 5 is provided on the transmission component. The rotation of the switching cam 5 triggers the micro switch 1, the signal transmission circuit is turned on, the electromagnet 32 ​​is energized, the iron core of the electromagnet 32 ​​pushes the movable indicator 34 to move upward, and the reset spring 33 retracts until the positioning rod of the movable indicator 34 contacts the upper end of the limit groove 311. The movable indicator 34 stops moving. At this time, the closing mark is in the indicator hole 313. The "closed" indicator can be seen through the indicator hole 313, indicating that the high-voltage switch is in the closed state.

[0069] When the high-voltage switch performs the tripping action, the switching cam 5 rotates in the reverse direction, the micro switch 1 is disconnected, the signal transmission circuit is de-energized, the electromagnet 32 ​​is de-energized, the electromagnet 32 ​​moves down and works with the reset spring 33 to drive the movable indicator 34 down until the positioning rod of the movable indicator 34 contacts the lower end of the limit groove 311. The movable indicator 34 stops moving down. At this time, the tripping mark is in the indicator hole 313. The "tripping" mark can be seen through the indicator hole 313, indicating that the high-voltage switch is in the tripping state.

[0070] In summary, the opening and closing indication system of the present invention utilizes a signal transmission circuit instead of mechanical transmission to indicate opening and closing via the opening and closing indication device 3. This avoids the need for complex mechanical structures inside the high-voltage switch, resulting in a simpler overall structure and reducing the failure rate caused by complex mechanical structures. The opening and closing indication device 3 receives execution information through a flexible connection line 4, thus its installation position is not limited by the positions of the micro switch 1 and the power supply 2, allowing for more flexible layout and improved utilization of internal space in the high-voltage switch. Furthermore, the absence of a mechanical transmission structure avoids the high failure rate, high cost, and high energy consumption associated with mechanical transmission structures. Moreover, for different types and models of high-voltage switches, there is no need to design separate opening and closing indication devices; all can be indicated using this device. Consequently, the opening and closing indication device can be modularly designed, resulting in lower costs. This enables the unification and standardization of the electrically controlled opening and closing system, improving versatility and solving the technical problems of complex mechanical transmission structures, high failure rates, inflexible layouts, low versatility, and high costs associated with mechanical opening and closing indication in existing high-voltage switches.

[0071] Embodiment 2 of the opening and closing indication system of the present invention:

[0072] This embodiment provides a different active indicator, which differs from Embodiment 1 in that the active indicator is an indicator needle. In this case, the fixed indicator mating structure consists of the "Open" and "Close" markings set on the device frame. The electromagnet drives the indicator needle to move up and down and points to the "Open" and "Close" markings respectively when the high-voltage switch is opened or closed to complete the opening and closing indication.

[0073] Embodiment 3 of the opening and closing indication system of the present invention:

[0074] This embodiment provides a device frame with a different structure. The difference from Embodiment 1 is that in this embodiment, the device frame can be a base, the electromagnet is fixedly installed on the base, and the movable indicator is directly fixedly installed on the iron core of the electromagnet. The position of the movable indicator is located by using the two positions of the electromagnet when it is de-energized and energized. At the same time, the electromagnet itself has a specific movement path, so the movement of the movable indicator can be guided by the mechanical properties of the electromagnet itself.

[0075] Embodiment 4 of the opening and closing indication system of the present invention:

[0076] This embodiment provides a different guiding method. The difference from Embodiment 1 is that in this embodiment, the guide groove is only provided on the front side of the rectangular box.

[0077] Embodiment 5 of the opening and closing indication system of the present invention:

[0078] This embodiment provides a different device frame. The difference from embodiment 1 is that, in this embodiment, when the accuracy requirement of the movement of the movable sign is low, the device frame may not be provided with a guide groove. The electromagnet itself has specific movement characteristics, so the mechanical properties of the electromagnet itself can be used to ensure the movement path of the movable sign.

[0079] Embodiment 6 of the opening and closing indication system of the present invention:

[0080] This embodiment provides a different device frame. The difference from Embodiment 1 is that, in this embodiment, when the accuracy requirement of the movement of the active indicator is low, the device frame may not be provided with a limiting groove. At the same time, since the electromagnet itself has a specific limit position, the movement of the device frame can be limited by the mechanical properties of the electromagnet itself.

[0081] Embodiment 7 of the opening and closing indication system of the present invention:

[0082] This embodiment provides a different limiting structure. The difference from Embodiment 1 is that in this embodiment, two limiting blocks are arranged at intervals along the vertical direction on the rear wall of the rectangular box, and a corresponding protrusion is provided on the movable indicator. When the movable indicator indicates that the circuit is open, the protrusion is at the lower end of the upper limiting block, and when the movable indicator indicates that the circuit is closed, the protrusion is at the lower end of the lower limiting block. In this way, the two limiting blocks are used to limit the movement of the movable indicator.

[0083] Embodiment 8 of the opening and closing indication system of the present invention:

[0084] This embodiment provides a different trigger, which differs from Embodiment 1 in that, in this embodiment, the trigger is a straight rod. When the high-voltage switch is opened or closed, the straight rod moves towards and away from the micro switch through linear movement, thereby realizing the opening and closing of the micro switch.

[0085] Specific embodiments of the opening and closing indicator device of the present invention: The embodiment of the opening and closing indicator device 3 has the same structure as the opening and closing indicator device 3 of the opening and closing indicator system in the above embodiments, and will not be described again here.

[0086] The present invention provides a specific embodiment 1 of a high-voltage switch opening and closing indication method: Embodiment 1 has been described in detail in the embodiments of the above-mentioned opening and closing indication system, and will not be repeated here.

[0087] Therefore, by using this method, the opening and closing indicator 3 is controlled by an electrical signal, thus eliminating the limitations of space, position, and distance. The opening and closing indicator 3 can be placed at any suitable location on the high-voltage switch, resulting in a flexible overall layout and a compact structure for the entire high-voltage switch. Furthermore, controlling the opening and closing indicator 3 with an electrical signal avoids the need for complex mechanical transmission structures between the control contact's opening and closing transmission system and the indicator 3. This avoids the high failure rate, high cost, and high energy consumption associated with mechanical transmission structures. Simultaneously, it allows for modular production of the entire opening and closing indicator 3, making it applicable to any type of high-voltage switch, improving applicability and reducing production costs. In summary, the high-voltage switch opening and closing indication method of this invention solves the technical problems of complex mechanical transmission structures, high failure rates, inflexible layouts, low versatility, and high costs associated with existing high-voltage switch opening and closing indication methods.

[0088] Embodiment 2 of the high-voltage switch opening / closing indication method of the present invention:

[0089] The difference between this embodiment and Embodiment 1 is that this embodiment provides a different type of opening and closing indicator device. In this embodiment, the opening and closing indicator device is an indicator light, which is divided into an opening indicator light and a closing indicator light. Using a control circuit, when the high-voltage switch is opened, the opening indicator light lights up, and when the high-voltage switch is closed, the closing indicator light lights up, thereby indicating the opening and closing. Alternatively, in other embodiments, the opening and closing indicator device is a sound module. Through a control circuit, when the high-voltage switch is opened, the sound module plays an "open" sound, and when the high-voltage switch is closed, the sound module plays a "close" sound.

[0090] Embodiment 3 of the high-voltage switch opening / closing indication method of the present invention:

[0091] The difference between this embodiment and Embodiment 1 lies in the fact that this embodiment provides a different method of transmitting electrical signals. In Embodiment 1, the electrical signal is transmitted through the connecting line in the signal transmission loop. In this embodiment, by rotating the switching cam, the control circuit determines whether the micro switch is energized and conducting. Then, the controller on the control circuit converts the determination result into different electrical signals, which are then converted into wireless signals and transmitted through a wireless transmitting unit set on the controller. A wireless receiving unit is set at the opening and closing indicator device. The wireless receiving unit receives the wireless signal from the wireless transmitting unit and controls the opening and closing indicator device to indicate opening and closing according to different signals, thereby realizing the transmission of electrical signals through wireless transmission. Alternatively, in other embodiments, a laser is set at the corresponding position of the switching cam. When the high-voltage switch is opened, the switching cam is driven to block the laser transmitter, and the controller in the control circuit cannot receive the laser signal. At this time, the controller receives an electrical signal and determines that the circuit breaker is in the open state. Then, the electrical signal is transmitted wirelessly through the wireless transmitting unit. A wireless receiving unit is set at the open / close indicator device. The wireless receiving unit receives the wireless signal and controls the open / close indicator device to indicate the open state. Correspondingly, when the high-voltage switch is closed, the switching cam is driven to avoid the laser transmitter. The controller in the control circuit receives the laser signal, receives an electrical signal and determines that the circuit breaker is in the closed state. Then, the electrical signal is transmitted wirelessly through the wireless transmitting unit. The wireless receiving unit receives the wireless signal and controls the open / close indicator device to indicate the close state.

[0092] Embodiment 4 of the high-voltage switch opening and closing indication method of the present invention:

[0093] The difference between this embodiment and Embodiment 1 is that this embodiment provides a different conversion method for electrical signals. In this embodiment, a sliding rheostat is provided in the signal transmission circuit. The sliding contact of the sliding rheostat is connected to the opening and closing transmission component of the high-voltage switch moving contact and can slide during the opening and closing of the high-voltage switch, thereby changing the resistance value in the circuit. A controller is also provided in the circuit. The controller can detect the resistance value in the circuit. Specific resistance values ​​are set in the controller corresponding to the opening and closing of the high-voltage switch. When the resistance value detected by the controller matches the specific resistance value, it is determined that the high-voltage switch is in the closing or opening state and a closing electrical signal or opening electrical signal is transmitted to the opening and closing indicator device to control the opening and closing indicator device to make corresponding indications. Alternatively, in other embodiments, a sliding rheostat is provided in the signal transmission circuit. A variable resistor, specifically a sliding contact, is connected to the opening and closing transmission component of the high-voltage switch's moving contact and can slide during the opening and closing process. A controller is also included in the circuit, equipped with a current sensor capable of detecting the current in the circuit. When the high-voltage switch performs opening and closing operations, the resistance of the sliding resistor changes, thus altering the current magnitude in the circuit. The current sensor transmits the detected current value to the controller. The controller determines the opening and closing state of the high-voltage switch based on the current value and converts it into different electrical signals. When the high-voltage switch is determined to be in the closed state, a closing electrical signal is transmitted to the opening and closing indicator device, controlling the device to indicate closing. When the high-voltage switch is determined to be in the open state, an opening electrical signal is transmitted to the opening and closing indicator device, controlling it to indicate closing.

[0094] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. The scope of patent protection of the present invention shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present invention shall also be included within the scope of protection of the present invention.

Claims

1. A high-voltage switch opening / closing indicator device, characterized in that, The device includes a rectangular box structure (31) and a circuit breaker indicator assembly. An electromagnet (32) is installed inside the rectangular box. The iron core of the electromagnet (32) is connected to a movable indicator element of the circuit breaker indicator assembly. A fixed indicator assembly is also installed on the device frame (31) to cooperate with the movable indicator element of the circuit breaker indicator assembly to indicate circuit breaker opening and closing. The movable indicator element is a movable indicator plate (34) with opening and closing indicators. The fixed indicator assembly is a baffle plate with an indicator hole (313). The front wall of the rectangular box constitutes the... When the core of the electromagnet (32) moves to the two limit positions, the open and closed indicators move to the positions corresponding to the indicator holes (313) and are exposed separately. A guide groove (312) extending along the length of the rectangular box is formed between the front wall and the two side walls. The active indicator (34) includes a front side plate, and the open and closed indicators are provided on the front side plate. The two opposite edges of the front side plate are guided and slidably engaged with the guide groove (312) so that the front side plate is attached to the front box wall.

2. The high-voltage switchgear opening / closing indicator device according to claim 1, characterized in that, The activity indicator (34) is arranged inside the rectangular box. The activity indicator (34) moves along the length of the rectangular box. The indicator hole (313) is set at the corresponding position on the front wall of the box.

3. The high-voltage switchgear opening and closing indicator device according to claim 2, characterized in that, The activity indicator (34) includes a rear side plate (342) that is spaced apart from the front side plate in the front-back direction. The two are connected by a connector. A guide groove (312) extending along the length of the rectangular box is also formed between the rear box wall and the two side walls. The two opposite edges of the rear side plate (342) slide in cooperation with the guide groove (312).

4. The high-voltage switchgear opening / closing indicator device according to claim 3, characterized in that, A limiting groove extends along the length of the rear wall of the rectangular box. A limiting pin is provided on the rear side plate of the movable indicator for sliding cooperation with the limiting groove. The limiting groove and the limiting pin cooperate to limit the position of the movable indicator in the vertical direction.

5. The high-voltage switchgear opening and closing indicator device according to any one of claims 1-3, characterized in that, The rectangular box is provided with a limiting structure, which is used to limit the movement of the open and closed indicators on the active indicator (34) to the positions corresponding to the indicator hole (313).

6. A high-voltage switchgear opening and closing indication system, characterized in that, The system includes a signal transmission circuit, which comprises a power supply (2), a circuit breaker indicator (3), and a micro switch (1) for controlling the opening and closing of the signal transmission circuit. The circuit breaker indicator system also includes a trigger for closing the micro switch (1). The trigger is installed on the circuit breaker transmission component of the moving contact of the high-voltage switch. The circuit breaker indicator includes a rectangular box structure frame (31) and a circuit breaker indicator assembly. An electromagnet (32) is installed inside the rectangular box. The iron core of the electromagnet (32) is connected to the movable indicator of the circuit breaker indicator assembly. A fixed indicator cooperation structure is also provided on the frame (31) to cooperate with the movable indicator of the circuit breaker indicator assembly to indicate the opening and closing of the circuit. The movable indicator (34) has an open circuit indicator and an closed circuit indicator. The fixed indicator fitting structure is a shield with an indicator hole (313). The front box wall of the rectangular box constitutes the shield. When the iron core of the electromagnet (32) moves to the two movable limit positions, the open circuit indicator and the closed circuit indicator move to the positions corresponding to the indicator hole (313) and are exposed separately. A guide groove (312) extending along the length of the rectangular box is formed between the front box wall and the two side walls. The movable indicator (34) includes a front side plate. The open circuit indicator and the closed circuit indicator are set on the front side plate. The two opposite edges of the front side plate are guided and slidably fitted with the guide groove (312) so that the front side plate is attached to the front box wall.

7. The high-voltage switchgear opening and closing indication system according to claim 6, characterized in that, The activity indicator (34) is arranged inside the rectangular box. The activity indicator (34) moves along the length of the rectangular box. The indicator hole (313) is set at the corresponding position on the front wall of the box.

8. The high-voltage switchgear opening and closing indication system according to claim 7, characterized in that, The activity indicator (34) includes a rear side plate (342) that is spaced apart from the front side plate in the front-back direction. The two are connected by a connector. A guide groove (312) extending along the length of the rectangular box is also formed between the rear box wall and the two side walls. The two opposite edges of the rear side plate (342) slide in cooperation with the guide groove (312).

9. The high-voltage switchgear opening and closing indication system according to claim 8, characterized in that, A limiting groove extends along the length of the rear wall of the rectangular box. A limiting pin is provided on the rear side plate of the movable indicator for sliding cooperation with the limiting groove. The limiting groove and the limiting pin cooperate to limit the position of the movable indicator in the vertical direction.

10. The high-voltage switchgear opening and closing indication system according to any one of claims 6-9, characterized in that, The rectangular box is provided with a limiting structure, which is used to limit the movement of the open and closed indicators on the active indicator (34) to the positions corresponding to the indicator hole (313).

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