Fault indication device and method for surge protection device, and storage medium

Abstract

The invention relates to a fault indication device and method for a surge protection device, and a storage medium. The apparatus comprises: a trip actuation portion connected in series with the surge protection device, the trip actuation portion comprising a push rod having an end portion capable of extending out of the trip actuation portion according to a leakage current flowing through the surge protection device; when the jump pin is rotated, the first end abuts against the end portion of the push rod. The first end of the indicating part can be clamped with the second end of the rotary jump pin; the pop-up part is configured to pop up the second end of the indicating part to the outside when the first end of the indicating part is disconnected from the second end of the rotary jump pin; the protruding block of the indicating part is located between the first edge and the second edge in the opening, and when the first end of the indicating part is clamped with the second end of the rotary jump pin and the end part of the ejector rod extends out of the tripping actuating part according to leakage current flowing through the surge protection device, the second end of the indicating part is popped outwards by the popping part; the character display unit rotates and displays predetermined characters to the outside.

Description

Technical Field

[0001] This invention relates to the field of surge protectors, and more specifically, to a fault indication device, method, and storage medium for surge protectors. Background Technology

[0002] A surge protector (SPD) is an electronic protection device used to limit transient overvoltages (such as surges caused by lightning strikes or switching operations) and discharge surge current. It is usually connected in parallel to the power line or signal line of electrical or electronic equipment to protect the equipment from damage caused by instantaneous high voltage.

[0003] An SPD-specific protection device (SSD) is a safety protection device connected in series in the SPD circuit. When the SPD experiences aging, breakdown, or continuous leakage current faults, it automatically detects abnormal power frequency current (such as leakage current in a 220V / 380V system) and performs a mechanical trip to disconnect the faulty SPD from the power supply, thus preventing the risk of fire or continuous leakage caused by SPD thermal runaway.

[0004] However, while existing dedicated SPD protection devices (SSDs) can effectively disconnect the faulty SPD from the power frequency current to ensure line safety after detecting SPD damage and triggering a trip due to leakage current, they lack any intuitive fault status indication function. This makes it impossible for users to distinguish the cause of the trip—whether it is due to SPD damage, human error, or other non-fault factors—thus delaying fault diagnosis and replacement, and reducing the efficiency and safety of system operation and maintenance response. Summary of the Invention

[0005] In view of the current state and shortcomings of the prior art, the purpose of this invention is to provide a fault indication device, method, and storage medium for surge protectors (SPDs). The device utilizes a tripping actuator to push a top rod, releasing the rotating trip lever and causing the indicator to pop out. Simultaneously, a rotating cam with a text display flips to show warning text to the user. This application achieves a dual fault alarm function of "pop-up physical indication" and "visual text warning," allowing users to intuitively and reliably identify SPD malfunctions, significantly improving maintenance response efficiency and system security.

[0006] According to an embodiment of the present invention, a fault indication device for a surge protector is provided, comprising: a tripping actuation part connected in series with the surge protector, the tripping actuation part including a push rod having an end, the end being capable of extending out of the tripping actuation part according to a leakage current flowing through the surge protector; a rotary trip lever having a first end, a second end, and a rotating part connecting the first end and the second end, the first end and the second end being rotatable about the rotating part, the first end abutting against the end of the push rod; an indication part having a first end, a second end, and a protrusion disposed between the first end and the second end of the indication part, the first end of the indication part being capable of engaging with the second end of the rotary trip lever; a pop-out part configured to pop the second end of the indication part outward when the engagement between the first end of the indication part and the second end of the rotary trip lever is disengaged; and a rotary cam, including: a rotating shaft; a rotating... Rotating body: The rotating body is arranged around a rotation axis and includes an opening and a first side and a second side defined by the opening; and a text display part is arranged on the rotating body near the first side. The text display part displays predetermined text. The protrusion of the indicator part is located between the first side and the second side inside the opening. When the first end of the indicator part engages with the second end of the rotating trip latch and the end of the push rod extends out of the trip actuation part according to the leakage current flowing through the surge protector, the end abuts against the first end of the rotating trip latch, so that the first end and the second end of the rotating trip latch rotate around the rotating body in a predetermined direction and disengage the engagement between the second end of the rotating trip latch and the first end of the indicator part. The pop-out part pops the second end of the indicator part outward. At the same time, the protrusion pushes the first side of the rotating body to rotate around the rotation axis, thereby driving the text display part to rotate and display the predetermined text outward.

[0007] In the fault indication device for surge protector according to an embodiment of the present invention, the tripping actuator pushes the top rod to release the rotating trip lever, thereby popping out the indicator and simultaneously driving the rotating cam with the text display to flip and display the warning text to the user. This realizes the dual fault alarm function of "pop-up physical indication" and "visual text warning", allowing the user to intuitively and reliably identify SPD damage faults, significantly improving the operation and maintenance response efficiency and system security.

[0008] In a fault indication device for a surge protector according to an embodiment of the present invention, the tripping actuation part includes: a stationary iron core having a first end and a second end, wherein a first through hole is provided in the middle of the stationary iron core extending from the first end to the second end of the stationary iron core; a moving iron core having a first end and a second end, wherein the second end of the moving iron core is spaced apart from the first end of the stationary iron core by a predetermined distance, wherein a second through hole is provided in the middle of the moving iron core extending from the first end to the second end of the moving iron core; and a push rod having a first end and a second end, wherein the first end of the push rod passes through the second through hole of the moving iron core and is fixedly connected to the moving iron core, and the second end of the push rod passes through the first through hole of the stationary iron core and protrudes from the second end of the stationary iron core. The second end of the rod is movable in the first through hole along the extension direction of the first through hole; a spring is disposed between the second end of the moving iron core and the first end of the stationary iron core, keeping the second end of the moving iron core and the first end of the stationary iron core separated by a predetermined distance; a coil is wound around the outside of the stationary iron core and the moving iron core, and is configured to apply magnetic force to the stationary iron core and the moving iron core according to the leakage current flowing through them, wherein the coil is connected in series with a surge protector, and when the leakage current flowing through the surge protector exceeds a predetermined current, the magnetic force applied by the coil to the moving iron core is greater than the elastic force applied by the spring to the moving iron core, and the moving iron core moves towards the stationary iron core, thereby causing the end of the second end of the rod to extend from the second end of the stationary iron core.

[0009] The above method provides a specific implementation of the trip actuator. This trip actuator responds only to leakage current, filters out surge interference, achieves dedicated triggering for SPD degradation, ensures accurate and reliable fault indication, and provides a reliable action source for subsequent mechanical warnings.

[0010] In a fault indication device for a surge protector according to an embodiment of the present invention, the first end of the rotary trip lever includes: a first portion extending a first length in a first direction, one end of the first portion being connected to a rotating part; and a second portion extending a second length from the other end of the first portion in a second direction perpendicular to the first direction. The second end of the rotary trip lever includes: a third portion extending a third length in the first direction, one end of the third portion being connected to the rotating part; and a fourth portion extending a fourth length from the other end of the third portion in a third direction perpendicular to the first direction, wherein the second direction and the third direction are opposite to each other, the first length is greater than the third length, the second length is greater than the fourth length, and the end of the second portion abuts against the end of a push rod, and the end of the fourth portion is capable of engaging with the first end of the indication part.

[0011] In the above manner, the asymmetrical lever arm design amplifies the micro-displacement of the push rod, achieving low-force triggering and high-reliability tripping, thereby improving the accuracy of fault diagnosis and mechanical stability.

[0012] In a fault indication device for a surge protector according to an embodiment of the present invention, a first end of an indicator portion includes a first rod extending in a first direction, a second end of an indicator portion includes a second rod extending in the first direction, and the indicator portion further includes a groove disposed between the first rod and the second rod, the groove being surrounded by: a first wall disposed on the end of the first rod opposite to the second rod, having a first end and a second end in a second direction perpendicular to the first direction; a second wall disposed on the end of the second rod opposite to the first rod, having a first end and a second end in a second direction; a third wall disposed between the first wall and the second wall, connecting the first end of the first wall and the first end of the second wall; and a fourth wall disposed between the first wall and the second wall, connecting the second end of the first wall and the second end of the second wall, wherein a protrusion is disposed on the side of the third wall away from the groove.

[0013] In this manner, the groove structure precisely limits the protrusion, ensuring that the protrusion stably pushes the cam to rotate when the latch is released, avoiding deviation or jamming, and realizing reliable flipping of the text display section, thereby improving the accuracy and stability of the indication action.

[0014] According to an embodiment of the present invention, a fault indication device for a surge protector further includes: a housing configured to accommodate a trip actuation part, a rotary trip, an indication part, a pop-out part, and a rotary cam; the housing includes a protrusion protruding into the housing, the protrusion being embedded in a groove and capable of sliding in the groove along a first direction.

[0015] In the above manner, the protrusion and the groove slide together to provide precise guidance for the indicator, prevent deflection or jamming, ensure that the pop-out of the second end of the indicator is synchronized and stable with the rotation of the cam, and improve the reliability and long-term durability of the mechanism.

[0016] In a fault indication device for a surge protector according to an embodiment of the present invention, the housing further includes: an opening configured to allow a second end of the indicator to pop out of the opening to the outside of the housing under the action of the pop-out portion; and an observation window configured to allow predetermined text displayed on the text display portion to be displayed to the outside of the housing via the observation window.

[0017] In the above manner, the indicator rod is mechanically popped out and exposed through the opening, and the predetermined text is made intuitively visible through the observation window, achieving a passive and interference-resistant visual fault alarm, which improves the efficiency of maintenance personnel in rapid identification and response.

[0018] In the fault indication device for a surge protector according to an embodiment of the present invention, the pop-out portion includes a spring disposed between a first wall and a protrusion. When the second end of the rotating trip latch engages with the first end of the indication portion, the spring is compressed between the first wall and the protrusion. When the engagement between the second end of the rotating trip latch and the first end of the indication portion is disengaged, the compressed spring springs the first wall away from the protrusion in a first direction, thereby popping the first rod of the indication portion outward.

[0019] In this manner, the spring energy storage release enables a rapid and stable pop-out action, ensuring that the indicator pops out immediately after the trip, enhancing the visual warning response speed and reliability, and avoiding delays.

[0020] A fault indication device for a surge protector according to an embodiment of the present invention further includes: a first limiting member disposed on a housing near a first side and configured to limit rotation of the first side in a direction away from the opening; and a second limiting member disposed on a housing near a second side and configured to limit rotation of the second side in a direction away from the opening, wherein a predetermined angle is formed between a first line connecting the first limiting member and the rotation axis and a second line connecting the second limiting member and the rotation axis, and when the rotating body rotates within the predetermined angle, the text display unit can switch between a first state of displaying predetermined text externally and a second state of not displaying predetermined text externally.

[0021] In this manner, the limiting component precisely controls the rotation angle of the rotating cam, ensuring that the text display only flips to the visible state in case of a malfunction, avoiding accidental rotation or return to the original position, achieving a clear and unique visual indication of the malfunction, and improving the reliability of user identification.

[0022] According to another embodiment of the present invention, a fault indication method for a surge protector is provided. The method is performed by the aforementioned fault indication device for a surge protector. The method includes: detecting leakage current flowing through the surge protector; when the leakage current exceeds a predetermined current, extending the end of a push rod from the trip actuation part by a trip actuation part; and pushing the end of the extended push rod against the first end of a rotating trip latch abutting against the end of the push rod, causing the first and second ends of the rotating trip latch to rotate around the rotating part in a predetermined direction, thereby disengaging the second end of the rotating trip latch from the first end of the indicator part. A pop-out part pops the second end of the indicator part outward. Simultaneously, a protrusion pushes the first side of the rotating body to rotate around the rotating axis, thereby causing the text display part to rotate and display predetermined text outward.

[0023] The above method achieves a dual fault alarm function of "pop-up physical indication" and "visual text warning", enabling users to intuitively and reliably identify SPD damage faults, significantly improving operation and maintenance response efficiency and system security.

[0024] According to another embodiment of the present invention, a computer-readable storage medium is provided having a program stored thereon that, when executed by a computer, causes the computer to perform the above-described method. Attached Figure Description

[0025] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this invention, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention. In the drawings:

[0026] Figure 1 A fault indication device for a surge protector in an untripped state according to an embodiment of the present invention is shown, wherein the fault indication device includes a coil.

[0027] Figure 2 A fault indication device for a surge protector in an untripped state according to an embodiment of the present invention is shown, wherein the fault indication device has removed the coil.

[0028] Figure 3 A fault indication device for a surge protector in a tripped state according to an embodiment of the present invention is shown, wherein the fault indication device has removed the coil.

[0029] Figure 4 A flowchart of a fault indication method for a surge protector according to an embodiment of the present invention is shown.

[0030] The reference numerals in the attached figures are as follows:

[0031] 1: Fault indication device for surge protectors

[0032] 10: Tripping Actuator

[0033] 12: Rotating Jump Dunk

[0034] 14: Instruction Department

[0035] 16: Pop-up section

[0036] 18: Rotary Cam

[0037] 102: Static Iron Core

[0038] 104: Moving iron core

[0039] 106: Top rod

[0040] 108: Spring

[0041] 110: Coil

[0042] 1021: The first end of the stationary iron core

[0043] 1022: The second end of the stationary iron core

[0044] 1041: The first end of the moving iron core

[0045] 1042: The second end of the moving iron core

[0046] 1061: The end of the second end of the push rod

[0047] 121: The first end of the rotating jump buckle

[0048] 123: The second end of the rotating jump buckle

[0049] 122: Rotating part

[0050] 1211: The first part of the first end of the rotating snap

[0051] 1212: The second part of the first end of the rotating jump buckle

[0052] 1231: The third part of the second end of the rotating jump hook

[0053] 1232: The fourth part of the second end of the rotating jump buckle

[0054] 141: The first end of the indicator

[0055] 142: Bump

[0056] 143: The second end of the indicator

[0057] 144: Groove

[0058] 1441: The First Wall

[0059] 1442: The Second Wall

[0060] 1443: The Third Wall

[0061] 1444: The Fourth Wall

[0062] 1441-1: The first end of the first wall

[0063] 1441-2: The second end of the first wall

[0064] 1442-1: The first end of the second wall

[0065] 1442-2: The second end of the second wall

[0066] 20: Shell

[0067] 201: Protrusion

[0068] 203: Opening

[0069] 181: Rotation axis

[0070] 183: Solid of Revolution

[0071] 185: Text Display Department

[0072] 1831: First Side

[0073] 1833: Second Side

[0074] 1851: The first part of the text display section

[0075] 1853: The second part of the text display section

[0076] 22: First limiting component

[0077] 24: Second limiting component

[0078] 205: Observation window. Detailed Implementation

[0079] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0080] The present invention provides a fault indication device for surge protectors. Figure 1 A fault indication device for a surge protector in an untripped state according to an embodiment of the present invention is shown, wherein the fault indication device includes a coil. Figure 2 A fault indication device for a surge protector in an untripped state according to an embodiment of the present invention is shown, wherein the fault indication device has removed the coil. Figure 3 A fault indication device for a surge protector in a tripped state according to an embodiment of the present invention is shown, wherein the fault indication device has its coil removed. To more clearly illustrate the relative positional relationship between the moving and stationary iron cores in the non-tripped and tripped states, Figure 2 and Figure 3 The coil is omitted from the drawing, but this does not mean that the fault indication device used in surge protectors does not include a coil. Furthermore, to avoid too many reference numerals in one drawing, making it difficult to understand, the reference numerals for different components are distributed across different drawings. For the same component's reference numerals, different drawings can be consulted for clarification. The following is in conjunction with... Figures 1 to 3 A fault indication device for a surge protector according to an embodiment of the present invention will be described.

[0081] like Figure 1As shown, the fault indication device 1 for a surge protector includes a tripping actuation unit 10, a rotating tripping unit 12, an indication unit 14, a pop-out unit 16, and a rotating cam 18.

[0082] The trip actuator 10 can be connected in series with a surge protector. The trip actuator 10 includes a push rod with an end that can extend out of the trip actuator 10 according to the leakage current flowing through the surge protector.

[0083] Specifically, such as Figure 1 and Figure 2 As shown, the tripping actuation unit 10 may include a stationary iron core 102, a moving iron core 104, a push rod 106, a spring 108, and a coil 110.

[0084] The stationary iron core 102 has a first end 1021 and a second end 1022. A first through hole is provided in the middle of the stationary iron core 102, extending from the first end 1021 to the second end 1022 through the stationary iron core 102.

[0085] Here, the stationary iron core is a fixed magnetic circuit component used in the fault indication device 1 of the surge protector. It is usually made of a high magnetic permeability material (such as silicon steel sheet) and works with the moving iron core to form a magnetic circuit. It is fixed in the fault indication device 1 of the surge protector.

[0086] The moving iron core 104 has a first end 1041 and a second end 1042. A second through hole is provided in the middle of the moving iron core 104, extending from the first end 1041 to the second end 1042. The second end 1042 of the moving iron core 104 is spaced apart from the first end 1021 of the stationary iron core 102 by a predetermined distance.

[0087] Here, the moving iron core 104 is a movable magnetic component used in the fault indication device 1 of the surge protector. It is usually used in conjunction with the stationary iron core, and the moving iron core can move towards the stationary iron core under the action of magnetic force.

[0088] The push rod 106 has a first end and a second end. To avoid excessive reference numerals that would make the attached drawings difficult to understand, in... Figures 1 to 2 The labeling of the first and second ends of the push rod 106 is not given, but it can be understood from the following text that the first end of the push rod 106 is... Figures 1 to 2 The left end of the push rod shown, the second end of push rod 106 is Figures 1 to 2 The right end of the push rod shown.

[0089] The first end of the push rod 106 passes through the second through hole of the moving iron core 104 and is fixedly connected to the moving iron core 104. For example, the surface of the first end of the push rod 106 and the inner surface of the second through hole of the moving iron core 104 may be provided with mutually engaging threads, so that the first end of the push rod 106 can be fixed to the second through hole of the moving iron core 104 by thread engagement.

[0090] The second end of the push rod 106 passes through the first through hole of the stationary iron core 102, and protrudes from the second end 1022 of the stationary iron core 102, where the end 1061 of the second end of the push rod 106 is exposed. The second end of the push rod 106 is capable of moving within the first through hole along the extension direction of the first through hole.

[0091] Here, the end 1061 of the second end of the push rod 106 can be Figure 2 The nut shown, which is fixed to the right end of the push rod 106, has a diameter slightly larger than that of the push rod 106.

[0092] like Figure 2 As shown, the spring 108 is disposed between the second end 1042 of the moving iron core 104 and the first end 1021 of the stationary iron core 102, maintaining the second end 1042 of the moving iron core 104 and the first end 1021 of the stationary iron core 102 at a predetermined distance. This predetermined distance can be set according to the user's needs.

[0093] Here, the preload of spring 108 is slightly less than the electromagnetic attraction of the coil under minimum leakage current, thereby ensuring reliable operation while preventing accidental tripping under normal current. In this invention, the minimum leakage current can be set, for example, to 3 amperes.

[0094] like Figure 1 As shown, coil 110 is wound around the outside of stationary iron core 102 and moving iron core 104, and is configured to apply magnetic force to stationary iron core 102 and moving iron core 104 according to the leakage current flowing through them. Coil 110 is connected in series with a surge protector.

[0095] like Figure 3 As shown, when the leakage current flowing through the surge protector exceeds a predetermined current (e.g., 3 amps), the magnetic force applied by the coil 110 to the moving iron core 104 is greater than the elastic force applied by the spring 108 to the moving iron core 104, and the moving iron core 104 moves towards the stationary iron core 102, thereby causing the end 1061 of the second end of the push rod 106 to extend from the second end 1022 of the stationary iron core 102.

[0096] This invention discloses an example of a spring 108 disposed between the second end 1042 of the moving iron core 104 and the first end 1021 of the stationary iron core 102, but the invention is not limited thereto. The spring 108 may be disposed between the component (e.g., a magnetic yoke) to which the second end 1042 of the moving iron core 104 and the second end 1022 of the stationary iron core 102 are fixed. In this case, one end of the spring 108 is fixed to the second end 1042 of the moving iron core 104, while the other end passes through the first through hole of the stationary iron core 102 and is fixed to, for example, a magnetic yoke.

[0097] like Figure 1 As shown, the rotary latch 12 has a first end 121, a second end 123, and a rotating portion 122 connecting the first end and the second end. The first end 121 and the second end 123 are rotatable about the rotating portion 122, and the first end 121 abuts against the end 1061 of the push rod 106. Here, the rotating portion 122 may include a torsion spring. The torsion spring can provide a precise return torque, ensuring that the rotary latch remains stably unlocked after being released, preventing reset due to vibration or residual magnetic force, and enhancing the reliability of fault indication and status locking.

[0098] like Figure 2 As shown, the first end 121 of the rotating snap fastener 12 includes a first part 1211 and a second part 1212, and the second end 123 of the rotating snap fastener includes a third part 1231 and a fourth part 1232.

[0099] The first part 1211 extends a first length in a first direction, and one end of it is connected to the rotating part 122. Here, the first part 1211 is a regular rod-shaped component, and the first direction is... Figure 2 The vertical direction in the middle.

[0100] The second portion 1212 extends a second length from the other end of the first portion 1211 in a second direction perpendicular to the first direction. The end of the second portion 1212 abuts against the end 1061 of the push rod 106. Figure 2 In the middle, the second part 1212 and the first part 1211 are arranged in a roughly inverted L-shape, and the second direction is... Figure 2 The direction to the left from the middle level.

[0101] The third part 1231 extends a third length in the first direction, and one end of it is connected to the rotating part 122. Here, the third part 1231 is also a regular rod-shaped component.

[0102] The fourth portion 1232 extends upwards for a fourth length from the other end of the third portion 1231 in a direction perpendicular to the first direction. The end of the fourth portion 1232 can engage with the first end of the indicator portion 14, which will be described later. Figure 2 In the middle, the fourth part, 1232, is roughly an irregular shape resembling an inverted Z, with the third direction being... Figure 2The direction to the right of the middle horizontal plane means that the third direction and the second direction are opposite to each other.

[0103] Here, the first part 1211 extends a first length in the first direction, which is greater than the third length of the third part 1231 extending in the first direction; the second part 1212 extends a second length in the second direction, which is greater than the fourth length of the fourth part 1232 extending in the third direction. This asymmetrical lever arm design amplifies the micro-displacement of the push rod, achieving low-force triggering and high-reliability tripping, thus improving fault diagnosis accuracy and mechanical stability.

[0104] The above describes one specific arrangement of the rotating snap fastener, but the present invention is not limited thereto. Any structure that can realize the above-described asymmetrical lever arm design to complete the release can be used as the rotating snap fastener of the present invention.

[0105] like Figure 1 As shown, the indicator 14 has a first end 141, a second end 143, and a protrusion 142 disposed between the first end 141 and the second end 143 of the indicator 14. The first end 141 of the indicator 14 can engage with the second end 123 of the rotating snap fastener 12.

[0106] The first end 141 of the indicator 14 is included in the first direction ( Figure 1 The first rod extends in the vertical direction (as shown in the figure), and the second end 143 of the indicator 14 includes the second rod extending in the first direction. Here, to avoid making the figures difficult to understand due to too many reference numerals, ... Figure 1 The reference numbers for the first and second poles are not given separately. The reference number 141 at the first end can be regarded as the reference number for the first pole, and the reference number 143 at the second end can be regarded as the reference number for the second pole to understand the first and second poles.

[0107] The indicator 14 also includes a groove 144 disposed between the first rod and the second rod. For clarity, in Figure 3 Details of groove 144 are shown in the image. Figure 3 As shown, the groove 144 is surrounded by a first wall 1441, a second wall 1442, a third wall 1443 and a fourth wall 1444.

[0108] Specifically, the first wall 1441 is disposed on the end of the first rod opposite to the second rod, that is, in Figure 3 In the first rod, a first wall 1441 is disposed at the lower end. The first wall 1441 has a first end portion 1441-1 and a second end portion 1441-2 in a second direction perpendicular to the first direction; that is, the first wall 1441 in… Figure 3 It extends in the horizontal direction.

[0109] The second wall 1442 is disposed on the end of the second rod opposite to the first rod, that is, in Figure 3 In the middle, the second wall 1442 is disposed at the upper end of the second rod. The second wall 1442 has a first end 1442-1 and a second end 1442-2 in a second direction, that is, the second wall 1442 is also in Figure 3 It extends in the horizontal direction.

[0110] The third wall 1443 is disposed between the first wall 1441 and the second wall 1442, connecting the first end 1441-1 of the first wall 1441 and the first end 1442-1 of the second wall 1442. Figure 3 In the middle, the third wall 1443 extends in the vertical direction.

[0111] A fourth wall 1444 is disposed between the first wall 1441 and the second wall 1442, connecting the second end 1441-2 of the first wall 1441 and the second end 1442-2 of the second wall 1442. Figure 3 In the middle, the fourth wall 1444 extends in the vertical direction.

[0112] Thus, a structure is formed by the first wall 1441 to the fourth wall 1444. Figure 3 The rectangular groove 144 shown is perpendicular to the paper surface.

[0113] The protrusion 142 can be disposed on the side of the third wall 1443 away from the groove 144, that is, the protrusion 142 is disposed on the outer side of the third wall 1443.

[0114] The pop-out portion 16 is configured to pop out the second end 143 of the indicator portion 14 when the first end 141 of the indicator portion 14 is disengaged from the second end 123 of the rotating snap 12.

[0115] like Figure 2 As shown, the fault indication device 1 for the surge protector may further include a housing 20, which is configured to house a trip actuation part 10, a rotary trip 12, an indication part 14, a pop-out part 16, and a rotary cam 18.

[0116] The housing 20 includes a protrusion 201 projecting into the housing, the protrusion 201 being able to be embedded in a groove 144 and slide within the groove 144 along a first direction. Figure 2 As shown, at a position on the housing 20 corresponding to the second end 143 of the indicator portion 14, there is an opening 203 corresponding to the second end 143. The second end 143 can extend to the outside of the housing 20 through the opening 203 or retract into the inside of the housing 20 through the opening 203.

[0117] The pop-out portion 16 may include a spring disposed between the first wall 1441 and the protrusion 201. For example... Figure 2As shown, when the second end 123 of the rotating latch 12 engages with the first end 141 of the indicator 14, the spring is compressed between the first wall 1441 and the protrusion 201, and the second end 143 of the indicator 14 retracts into the interior of the housing 20. Figure 3 As shown, when the second end 123 of the rotating snap 12 is disengaged from the first end 141 of the indicator 14, the compressed spring will push the first wall 1441 away from the protrusion 201 in the first direction, thereby popping the second end 143 of the indicator 14 outward, and the second end 142 of the indicator 14 extends outward through the opening 203 to the outside of the housing 20.

[0118] Here, the ability of the protrusion 201 to slide along the first direction in the groove 144 refers to the ability of the groove 144 of the indicator portion 14 to slide along the first direction. Figures 1 to 3 The protrusion 201 moves vertically while the groove 144 remains stationary, allowing the protrusion 201 to slide vertically relative to the groove 144.

[0119] The rotary cam 18 is positioned close to the protrusion 142 and rotates between a first position and a second position under the action of the protrusion 142.

[0120] Specifically, such as Figure 1 and Figure 2 As shown, the rotary cam 18 includes a rotary shaft 181, a rotating body 183, and a text display unit 185. The rotary shaft 181 is fixed to the housing 20, and the rotating body 183 is arranged around the rotary shaft 181 and includes an opening and a first side 1831 and a second side 1833 defined by the opening.

[0121] Here, the remaining portion of the rotating body 183, excluding the opening, forms an approximate C-shape, with the first side 1831 and the second side 1833 forming the two edges of the C-shape. The protrusion 142 of the indicator 14 is located between the first side 1831 and the second side 1833 within the opening. As the protrusion 142 moves up and down with the up and down movement of the indicator 14, it pushes the first side 1831 and the second side 1833, causing the rotating cam 18 to rotate between the first position and the second position.

[0122] A text display section 185 is disposed on the rotating body 181 near the first side 1831. The text display section 185 includes a first portion 1851 and a second portion 1853. The first portion 1851 extends perpendicularly to the surface of the rotating body 181, and the second portion 1853 extends from the end of the first portion 1851 perpendicularly to the extending direction of the first portion toward the opening direction; that is, the extending direction of the second portion 1853 is substantially parallel to the surface of the rotating body 181. Predetermined text, such as a warning message like "Please replace SPD," is displayed on the second portion 1853.

[0123] When the first end 141 of the indicator 14 engages with the second end 123 of the rotary trip latch 12 and the end 1061 of the push rod 106 extends out of the trip actuator 10 according to the leakage current flowing through the surge protector, as Figure 3 As shown, end 1061 abuts against the first end 121 of the rotating snap fastener 12, causing the first end 121 and the second end 123 of the rotating snap fastener 12 to rotate around the rotating part 122 in a predetermined direction (counterclockwise) to disengage the second end 123 of the rotating snap fastener 12 from the first end 141 of the indicator part 14. The pop-out part 16 pops the second end 143 of the indicator part 14 outward. At the same time, the protrusion 142 pushes the first side 1831 of the rotating body 183 to rotate around the rotating axis, thereby driving the text display part to rotate and display the predetermined text outward.

[0124] like Figure 3 As shown, the fault indication device 1 for the surge protector may further include a first limiting member 22 and a second limiting member 24.

[0125] A first limiting member 22 is disposed on the housing 20 near the first side 1831 and is configured to restrict rotation of the first side 1831 in the direction away from the opening. A second limiting member 24 is disposed on the housing 20 near the second side 1833 and is configured to restrict rotation of the second side 1833 in the direction away from the opening. By providing the first and second limiting members, the rotating body 183 can rotate between a first position and a second position. In the first position, the first side 1831 abuts against the first limiting member 22, and the second side 1833 moves away from the second limiting member 24. In the second position, the second side 1833 abuts against the second limiting member 24, and the first side 1831 moves away from the first limiting member 22. Here, the first limiting member 22 and the second limiting member 24 can be rod-shaped components fixed to the housing 20.

[0126] The first line connecting the first limiting member 22 and the first line connecting the second limiting member 24 and the second line connecting the second line of the rotating shaft 181 forms a predetermined angle (e.g., 90 degrees). When the rotating body 183 rotates within this predetermined angle, the second part 1853 of the text display unit 185 can switch between a first state of displaying predetermined text to the outside and a second state of not displaying predetermined text to the outside.

[0127] Specifically, when the rotating body 183 is in the first position, the second part 1853 of the text display unit 185 displays predetermined text to the outside, and when the rotating body 183 is in the second position, the second part 1853 of the text display unit 185 does not display predetermined text to the outside.

[0128] like Figure 2As shown, the housing 20 may further include an observation window 205, through which the second part 1853 of the text display unit 185 can display predetermined text to the outside, such as "Please replace SPD".

[0129] According to an embodiment of the present invention, a fault indication device for a surge protector is provided. The tripping actuator pushes a top rod to release the rotating trip lever, thereby popping out the indicator. Simultaneously, it drives a rotating cam with a text display to flip and display warning text to the user. This achieves a dual fault alarm function of "pop-up physical indication" and "visual text warning", allowing users to intuitively and reliably identify SPD damage faults, significantly improving operation and maintenance response efficiency and system security.

[0130] The fault indication device for surge protectors according to embodiments of the present invention can be integrated with existing SSDs and used in SPDs, or it can be used independently in SPDs.

[0131] According to another embodiment of the present invention, a fault indication method for a surge protector is also provided. Figure 4 A flowchart of a fault indication method for a surge protector according to another embodiment of the present invention is shown. This method is performed using a fault indication device for a surge protector according to an embodiment of the present invention. Therefore, the following is combined with... Figures 1 to 4 The following is a detailed description of a fault indication method for a surge protector according to another embodiment of the present invention. For clarity, the technical means already described above will not be repeated. They can be discussed in conjunction with... Figures 1 to 3 To understand the description Figure 4 The method shown.

[0132] A fault indication method for a surge protector according to another embodiment of the present invention includes steps S1 to S3 performed by the fault indication device for a surge protector described above.

[0133] In step S1, the leakage current flowing through the surge protector is detected.

[0134] Typically, a current detection device, such as a current sensor, is provided in the fault indication device 1 for surge protector to detect leakage current flowing through the fault indication device 1 for surge protector.

[0135] In step S2, when the detected leakage current exceeds the predetermined current, the end of the push rod 106 is extended from the trip actuator 106 by the trip actuator 10.

[0136] Normally, under the normal operating conditions of a surge protector, no leakage current flows through the surge protector, and therefore no leakage current flows through the coil 110 of the fault indication device 1 connected in series with the surge protector. Figure 2 As shown, the second end 123 of the rotating snap 12 engages with the first end 141 of the indicator 14, the spring of the pop-out part 16 is compressed between the first wall 1441 and the protrusion 201, and the second end 143 of the indicator 14 retracts into the interior of the housing 20. The protrusion 142 presses the second side 1833 of the rotating body 183 against the second limiting member 24, the second part 1853 of the text display part 185 moves away from the observation window and does not display the predetermined text to the outside, and the rotating body 183 is in the second position.

[0137] like Figure 3 As shown, when the leakage current flowing through the surge protector exceeds a predetermined current (e.g., 3 amps), the magnetic force applied by the coil to the moving iron core 104 is greater than the elastic force applied by the spring 108 to the moving iron core 104, and the moving iron core 104 moves towards the stationary iron core 102, thereby causing the end 1061 of the second end of the push rod 106 to extend from the second end 1022 of the stationary iron core 102.

[0138] In step S3, the end 1061 of the extended push rod 106 pushes the first end 121 of the rotating buckle 12 that abuts against the end of the push rod, causing the first end 121 and the second end 123 of the rotating buckle 12 to rotate around the rotating part 122 in a predetermined direction, thereby disengaging the second end 123 of the rotating buckle 12 from the first end 141 of the indicator part 14. The pop-out part 16 pops the second end 143 of the indicator part 14 outward. At the same time, the protrusion 142 pushes the first side 1831 of the rotating body 183 to rotate around the rotating axis 181, thereby driving the text display part 185 to rotate and display predetermined text outward.

[0139] Specifically, such as Figure 3As shown, when the end 1061 of the extended push rod 106 pushes the first end 121 of the rotating latch 12 against the end of the push rod, the first end 121 and the second end 123 of the rotating latch 12 rotate counterclockwise around the rotating part 122, thereby disengaging the second end 123 of the rotating latch 12 from the first end 141 of the indicator part 14. At this time, the compressed spring of the pop-out part 16 springs the first wall 1441 away from the protrusion 201 in the vertical direction, that is, it springs the second end 143 of the indicator part 14 upward, and the second end 143 of the indicator part 14 extends to the outside of the housing 20 through the opening 203. During the process of the second end 143 of the indicator part 14 being springed upward by the spring of the pop-out part 16, the protrusion 142 also moves upward along with the upward movement of the indicator part 14, and the protrusion 142 moves away from the second side 1833 of the rotating body 183 and pushes the first side 1831. Driven by the protrusion 142, the rotating body 183 rotates counterclockwise until the first edge 1831 of the rotating body 183 abuts against the first limiting member 22. At this time, the rotating body 183 is in the first position, and the second part 1853 of the text display section 185 displays the predetermined text to the outside through the observation window.

[0140] At this point, the indicator pops out, simultaneously causing the rotating cam with the text display to flip and display the warning text to the user. This achieves a dual fault alarm function of "pop-up physical indicator" and "visual text warning", allowing users to intuitively and reliably identify SPD damage faults, significantly improving operation and maintenance response efficiency and system security.

[0141] When resetting the fault indicator device 1 for the surge protector that has indicated an SPD fault, the second end 143 of the indicator part 14 can be manually pressed down to retract it into the housing 20. The first end 141 of the indicator part 14 engages with the second end 123 of the rotating buckle 12. The protrusion 142 pushes the second side 1833 of the rotating body 183 to rotate clockwise until the second side 1833 abuts against the second limit member 24. The second part 1853 of the text display part 185 moves away from the observation window and does not display the predetermined text to the outside. The rotating body 183 is in the second position.

[0142] The present invention also provides a computer-readable storage medium having a program stored thereon, which, when executed, causes a computer to perform a fault indication method for a surge protector according to an embodiment of the present invention. Specifically, a system or apparatus equipped with a storage medium may be provided, on which software program code implementing the functions of any of the above embodiments is stored, and the computer (or CPU or MPU) of the system or apparatus may read and execute the program code stored in the storage medium.

[0143] In this case, the program code read from the storage medium can itself achieve the function of any of the above embodiments, and therefore the program code and the storage medium storing the program code constitute part of the present invention.

[0144] Storage media implementations for providing program code include floppy disks, hard disks, magneto-optical disks, optical disks (such as CD-ROM, CD-R, CD-RW, DVD-ROM, DVD-RAM, DVD-RW, DVD+RW), magnetic tapes, non-volatile memory cards, and ROMs. Alternatively, program code can be downloaded from a server computer via a communication network.

[0145] Furthermore, it should be clear that not only can the program code read by the computer be executed, but also the operating system or other components on the computer can be instructed based on the program code to perform some or all of the actual operations, thereby achieving the function of any of the above embodiments.

[0146] Furthermore, it is understood that the program code read from the storage medium is written to the memory set in the expansion board inserted into the computer or to the memory set in the expansion unit connected to the computer. Then, based on the instructions of the program code, the CPU or other components installed on the expansion board or expansion unit execute some and all of the actual operations, thereby realizing the function of any of the above embodiments.

[0147] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A fault indication device (1) for a surge protector, comprising: A tripping actuator (10) is connected in series with the surge protector. The tripping actuator includes a push rod with an end (1061) that can extend out of the tripping actuator according to the leakage current flowing through the surge protector. The rotating buckle (12) has a first end (121), a second end (123) and a rotating part (122) connecting the first end and the second end. The first end and the second end are rotatable about the rotating part. The first end abuts against the end (1061) of the top rod. The indicator (14) has a first end (141), a second end (143) and a protrusion (142) disposed between the first end and the second end of the indicator, wherein the first end of the indicator can engage with the second end of the rotary buckle; The pop-out portion (16) is configured to pop outward when the first end of the indicator portion is disengaged from the second end of the rotary latch; as well as Rotary cam (18), comprising: Rotation axis (181); Rotating body (183): disposed about the axis of rotation, the rotating body including an opening and a first side (1831) and a second side (1833) defined by the opening; and A text display unit (185) is disposed on the rotating body near the first side, and predetermined text is displayed on the text display unit. The protrusion (142) of the indicator (14) is located between the first side (1831) and the second side (1833) within the opening. When the first end (141) of the indicator (14) engages with the second end (123) of the rotary trip buckle (12) and the end (1061) of the push rod extends out of the trip actuation part (10) according to the leakage current flowing through the surge protector, the end (1061) presses against the first end (121) of the rotary trip buckle (12), causing the first end (123) of the rotary trip buckle (12) to... 1) The second end (123) rotates around the rotating part (122) in a predetermined direction to disengage the second end (123) of the rotating buckle (12) from the first end (141) of the indicator part (14). The pop-out part (16) pops the second end (143) of the indicator part (14) outward. At the same time, the protrusion (142) pushes the first side (1831) of the rotating body (18) to rotate around the rotating axis (181), thereby driving the text display part (185) to rotate and display the predetermined text outward.

2. The apparatus (1) according to claim 1, wherein, The tripping actuator (10) includes: The stationary iron core (102) has a first end (1021) and a second end (1022), and a first through hole is provided in the middle of the stationary iron core, extending from the first end of the stationary iron core to the second end of the stationary iron core. The moving iron core (104) has a first end (1041) and a second end (1042). The second end of the moving iron core is spaced apart from the first end of the stationary iron core by a predetermined distance. A second through hole is provided in the middle of the moving iron core, extending from the first end of the moving iron core to the second end of the moving iron core. The push rod (106) has a first end and a second end. The first end of the push rod passes through the second through hole of the moving iron core and is fixedly connected to the moving iron core. The second end of the push rod passes through the first through hole of the stationary iron core and protrudes from the second end of the stationary iron core, with the end (1061) of the second end of the push rod protruding. The second end of the push rod can move in the first through hole along the extension direction of the first through hole. A spring (108) is disposed between the second end of the moving iron core and the first end of the stationary iron core to keep the second end of the moving iron core and the first end of the stationary iron core separated by the predetermined distance; A coil (110), wound around the outside of the stationary iron core and the moving iron core, is configured to apply magnetic force to the stationary iron core and the moving iron core according to a leakage current flowing through them. The coil is connected in series with the surge protector. When the leakage current flowing through the surge protector exceeds a predetermined current, the magnetic force applied by the coil to the moving iron core is greater than the elastic force applied by the spring to the moving iron core. The moving iron core moves towards the stationary iron core, thereby causing the end of the second end of the push rod to extend from the second end of the stationary iron core.

3. The apparatus (1) according to claim 1, wherein, The first end (121) of the rotating buckle (12) includes: A first portion (1211) extends a first length in a first direction, one end of the first portion being connected to the rotating portion (122); and The second part (1212) extends a second length from the other end of the first part in a second direction perpendicular to the first direction. The second end (123) of the rotating buckle (12) includes: The third part (1231) extends a third length in the first direction, and one end of the third part is connected to the rotating part (122); and The fourth part (1232) extends upwards for a fourth length from the other end of the third part in a direction perpendicular to the first direction. Wherein, the second direction and the third direction are opposite to each other, the first length is greater than the third length, and the second length is greater than the fourth length. The end of the second part (1212) abuts against the end (1061) of the top rod (106), and the end of the fourth part (1232) can engage with the first end (141) of the indicator (14).

4. The apparatus (1) according to claim 1, wherein, The first end (141) of the indicator (14) includes a first rod extending in a first direction. The second end (143) of the indicator (14) includes a second rod extending in the first direction. The indicator also includes a groove (144) disposed between the first rod and the second rod, the groove being surrounded by the following: The first wall (1441) is provided on the end of the first rod opposite to the second rod, and has a first end (1441-1) and a second end (1441-2) in a second direction perpendicular to the first direction. The second wall (1442) is provided on the end of the second rod opposite to the first rod, and has a first end (1442-1) and a second end (1442-2) in the second direction. The third wall (1443) is disposed between the first wall and the second wall, connecting the first end of the first wall and the first end of the second wall; as well as A fourth wall (1444) is disposed between the first wall and the second wall, connecting the second end of the first wall and the second end of the second wall. The protrusion (142) is disposed on the side of the third wall away from the groove.

5. The apparatus (1) according to claim 4, further comprising: The housing (20) is configured to accommodate the tripping actuation unit, the rotary trip lever, the indicator unit, the ejector unit, and the rotary cam. The housing includes a protrusion (201) that protrudes into the housing and is embedded in the groove (144) and is slidable in the groove along the first direction.

6. The apparatus (1) according to claim 5, wherein, The housing (20) further includes: The opening (203) is configured to allow the second end (143) of the indicator (14) to pop out from the opening (203) to the outside of the housing (20) under the action of the pop-out portion (6); and The observation window (205) is configured to allow the predetermined text displayed on the text display unit (185) to be displayed to the outside of the housing (20) via the observation window (205).

7. The apparatus (1) according to claim 6, wherein, The pop-out portion (16) includes a spring disposed between the first wall (1441) and the protrusion (201). When the second end of the rotating buckle engages with the first end of the indicator, the spring is compressed between the first wall and the protrusion. When the engagement between the second end of the rotating buckle and the first end of the indicator is disengaged, the compressed spring pushes the first wall away from the protrusion in the first direction, thereby popping the first rod of the indicator outward.

8. The apparatus (1) according to claim 7, further comprising: A first limiting member (22), disposed on the housing (20) near the first side (1831), is configured to restrict rotation of the first side in a direction away from the opening; as well as A second limiting member (24), disposed near the second side (1833) on the housing (20), is configured to restrict rotation of the second side in a direction away from the opening. The first limiting member (22) and the first line connecting the rotating shaft (181) and the second limiting member (24) and the second line connecting the rotating shaft (181) form a predetermined angle. When the rotating body rotates within the predetermined angle, the text display unit (185) can switch between a first state of displaying the predetermined text to the outside and a second state of not displaying the predetermined text to the outside.

9. A fault indication method for a surge protector, the method being performed by the apparatus according to any one of claims 1 to 8, the method comprising: Detect the leakage current flowing through the surge protector; When the leakage current exceeds the predetermined current, the end of the push rod extends out of the trip actuation part (10) by the trip actuation part; and The end (1061) of the extended top rod (106) pushes the first end (121) of the rotating buckle (12) against the end of the top rod, so that the first end and the second end (123) of the rotating buckle rotate around the rotating part (122) in a predetermined direction, thereby disengaging the second end of the rotating buckle from the first end (141) of the indicator part (14). The pop-out part (16) pops the second end (143) of the indicator part outward. At the same time, the protrusion (142) pushes the first side (1831) of the rotating body (183) to rotate around the rotating axis, thereby driving the text display part (185) to rotate and display the predetermined text outward.

10. A computer-readable storage medium having a program stored thereon that, when executed by a computer, causes the computer to perform the method according to claim 9.

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