Switch-on counting device of circuit breaker

Abstract

The present invention relates to an ON counting device for a circuit breaker, the ON counting device comprising a fixed contact, a movable contact, and an opening / closing mechanism having a rotating shaft, and counting the number of ON times of the circuit breaker, the ON counting device comprising: a drive arm coupled to the rotating shaft; the indicator is used for displaying the connection times; the counting rod is arranged to be capable of rotating on one side of the indicator and is used for counting the turn-on times; an operating pin which is arranged so as to be able to come into contact with the drive arm and is able to rise and fall; an operation rod configured to have one end portion capable of performing a pressing operation on the counting rod; and a buffer spring sandwiched between the operating pin and the operating lever so as to be telescopic. The actuating arm is configured so as to be capable of pressing the operating pin when the opening / closing mechanism is turned on. As a result, it is possible to count the number of ON (OFF) pairs at the time of ON, and to transmit the driving force after buffering the driving force.

Description

Technical Field

[0001] This invention relates to a circuit breaker on / off counting device. Background Technology

[0002] As is well known, a circuit breaker or circuit breaker is an electrical protection device installed between the power source and the load equipment to protect the load equipment and lines from the effects of fault currents (large currents caused by short circuits, grounding accidents, etc.) that may occur in the circuit.

[0003] Such circuit breakers include air circuit breakers configured for relatively low-voltage transmission and distribution lines and vacuum circuit breakers configured for relatively high-voltage transmission and distribution lines.

[0004] The air circuit breaker includes: an energizing section having a movable contact and a fixed contact; a detection section for detecting fault current; and an opening / closing mechanism for moving the movable contact based on the detection signal from the detection section.

[0005] The vacuum circuit breaker includes: a vacuum interrupter having a fixed contact and a movable contact; a detection unit for detecting fault current; and an opening / closing mechanism for moving the movable contact based on the detection signal from the detection unit.

[0006] Figure 1 This diagram illustrates an example of the switching mechanism of an existing circuit breaker. (As shown...) Figure 1 As shown, the opening and closing mechanism 10 of the existing circuit breaker has a frame 20 and a mechanism section 30.

[0007] Although not specifically shown in the accompanying drawings, the frame 20 is disposed on one side of the energized part of the air circuit breaker or the vacuum interrupter of the vacuum circuit breaker (front side in the accompanying drawings).

[0008] The frame 20 has a first side plate 21 and a second side plate 22 spaced side by side, and an upper side plate 23 disposed on the upper side of the first side plate 21 and the second side plate 22.

[0009] A closing button 31 and a closing button 32 are provided in the internal space of the first side plate 21, the second side plate 22 and the upper side plate 23.

[0010] As is well known, the closing button 31 is designed to generate a connection action when pressed, causing the movable contact (not shown) to contact the fixed contact (not shown).

[0011] As is well known, the trip button 32 is designed to cause the movable contact to separate (isolate) from the fixed contact when pressed.

[0012] The mechanism 30 is provided on the lower side of the closing button 31 and the opening button 32.

[0013] Although not specifically shown in the accompanying drawings, each of the mechanism parts 30 may have a plurality of connecting members and a plurality of springs connected to move relative to each other, such that when the closing button 31 and the opening button 32 are pressed, they can respectively perform the connecting action and the disconnecting action.

[0014] The lower regions inside the first side plate 21 and the second side plate 22 are provided with a spring (not shown) that provides elastic force to move the movable contact toward the fixed contact side, a crank assembly 49 for storing the elastic force of the spring, and a cam assembly described later.

[0015] The cam assembly is configured to rotate in one direction along the circumference around the rotation axis 41 in the charging region and the discharging region.

[0016] Figure 2 It is shown Figure 1 A diagram of the rotating shaft of the opening and closing mechanism and the counting device for the number of openings and closings. Figure 3 yes Figure 2 A 3D view of the control lever. Figures 4 to 6 These are for explanation Figure 2 A diagram illustrating the function of the opening and closing count device. (See diagram for example.) Figure 2 As shown, the cam assembly 40 has a rotation shaft 41 and a plurality of cam plates 45 coupled to the rotation shaft 41.

[0017] Each of the plurality of cam plates 45 is in the shape of a disc.

[0018] On the other hand, a circuit breaker count device 50 is provided on the rotating shaft 41 to count the number of times the opening and closing mechanism 10 is opened and closed.

[0019] The opening and closing count device 50 includes: an indicator 51 that displays the number of openings and closings; a counting rod 55 that is rotatable on one side of the indicator 51 to count the number of openings and closings; and an operating lever 60 that actuates the counting rod 55 by means of linkage with the opening and closing mechanism 10.

[0020] A support member 70 is provided on one side of the indicator 51 and the counting rod 55 to support the indicator 51 and the counting rod 55.

[0021] The support member 70 is L-shaped.

[0022] The support member 70 has: a front portion 71, which is attached to the indicator 51; and a side portion 73, which curves from the front portion 71 and is attached to the opening and closing mechanism 10 (second side plate 22).

[0023] An opening 72 is formed on the front surface 71 of the support member 70, allowing the operating lever 60 to be extended.

[0024] The support member 70 is attached to the opening and closing mechanism 10 (second side plate 22).

[0025] A fastening member is provided on the side portion 73 of the support member 70 to fasten to the opening and closing mechanism 10.

[0026] The counting rod 55 is located on one side of the indicator 51 (right side in the figure).

[0027] The counting rod 55 has a rotating shaft 56, a rod portion 57 protruding radially along the rotating shaft 56, and a protrusion 58 protruding from the end of the rod portion 57.

[0028] The operating lever 60 is configured to rotate in the up-down direction.

[0029] Although not specifically shown in the accompanying drawings, a counting rod spring is provided inside the indicator 51, which applies a spring force to return the counting rod 55 to its initial position on the upper side.

[0030] Thus, the counting rod 55 remains in its initial position on the upper side without any external force acting upon it.

[0031] One side of the operating lever 60 is configured to contact the cam plate 45 and rotate in the up-down direction.

[0032] like Figure 3 As shown, the operating lever 60 has: an operating lever body 61; a contact pin 63 that protrudes to one side of the operating lever body 61 (the right side in the figure) and can contact the cam plate 45; and a pressure part 64 that is disposed on the other side of the operating lever body 61 (the left side in the figure) and applies pressure to the protrusion 58 of the counting rod 55.

[0033] When the contact pin 63 is pressed by the cam plate 45, the operating lever 60 rotates downward to press down the counting lever 55, causing the counting lever 55 to rotate downward.

[0034] A rotating shaft hole 62 is formed through the main body 61 of the operating lever, allowing the rotating shaft provided in the support member 70 to be accommodated and movable relative to it. Thus, the main body 61 of the operating lever can rotate up and down relative to the support member 70 about the rotating shaft.

[0035] The pressurizing part 64 has: a first bending part 65 that bends from the end of the operating lever body 61; and a second bending part 66 that bends from the first bending part and is disposed between the counting lever 55 and the indicator 51.

[0036] The contact pin 63 is configured to pass through the support member 70 and contact the outer surface of the cam plate 45.

[0037] A contact pin receiving hole 74 is formed through the support member 70, so that the contact pin 63 of the operating lever 60 can be accommodated and can move relative to each other.

[0038] The contact pin receiving hole 74 is arc-shaped to correspond to the rotation trajectory of the contact pin 63.

[0039] With this configuration, the pressure part 64 of the operating lever 60 is led out through the opening 72 of the support member 70, and the rotating shaft is accommodated inside the rotating shaft hole 62 when the contact pin 63 is inserted into the contact pin receiving hole 74.

[0040] If the side portion 73 of the support member 70 contacts the second side plate 22 of the opening and closing mechanism 10, the fastening member is engaged with and fixed to the second side plate 22.

[0041] At this time, the contact pin 63 contacts the outer peripheral surface of the cam plate 45 and is pressurized.

[0042] Specifically, such as Figure 2 As shown, a pressure release portion 46 for releasing the pressure on the contact pin 63 is provided on the outer peripheral surface of the cam plate 45. The pressure release portion 46 has a first section 47 cut out in a circumferential line from the cam plate 45 and a second section 48 recessed inward from the first section 47.

[0043] like Figure 4 As shown, when the opening and closing mechanism 10 releases energy, the contact pin 63 makes circumferential contact with one side of the pressure release part 46 of the cam plate 45.

[0044] like Figure 5 As shown, at the initial stage of energy storage when the opening and closing mechanism 10 begins to store energy, as the cam plate 45 rotates counterclockwise as shown in the figure, the contact pin 63 faces the pressure release part 46. At this time, the operating lever 60 rotates upward by the elastic force of the counting rod spring of the counting rod 55.

[0045] like Figure 6 As shown, if the cam plate 45 continues to rotate counterclockwise, the contact pin 63 will come into circumferential contact with the cam plate 45 through the pressure release part 46 and be subjected to downward pressure.

[0046] If the contact pin 63 contacts the circumference of the cam plate 45, the operating lever 60 is pressed downward and rotates downward around the rotation axis.

[0047] As the operating lever 60 rotates downward, the pressure part 64 of the operating lever 60 rotates downward, at which time the pressure part 64 applies downward pressure to the protrusion 58 of the counting lever 55.

[0048] The counting rod 55 counts the number of opening and closing operations by rotating downwards, thereby the indicator 51 displays the state of the number of opening and closing operations of the opening and closing mechanism 10 plus 1.

[0049] However, the existing circuit breaker opening and closing count device 50 has the following problem: when the opening and closing mechanism 10 is closed (releases energy), the number of opening and closing counts displayed in the indicator 51 does not increase; when the opening and closing mechanism 10 is activated, the number of opening and closing counts in the indicator 51 is incremented by 1. Therefore, there is a time difference between the actual closing (closing) time of the opening and closing mechanism 10 and the calculated time of the number of opening and closing counts of the opening and closing mechanism 10.

[0050] On the other hand, in this existing circuit breaker opening and closing count device 50, there is a problem that, since the relatively small opening and closing count device 50 operates by receiving driving force from the relatively large opening and closing mechanism 10, the opening and closing count device is easily damaged when the large driving force of the opening and closing mechanism 10 is applied, and its service life may be shortened. Summary of the Invention

[0051] The problem to be solved

[0052] Therefore, the object of the present invention is to provide a circuit breaker switching (closing) counting device that can accurately count the number of times the switching mechanism is turned on (closed).

[0053] In addition, the present invention aims to provide a circuit breaker closing counting device that can count the number of times the circuit breaker is closed when it is connected, and can buffer and transmit the driving force.

[0054] Technical solutions to the problem

[0055] The circuit breaker closing (on / off) counting device of the present invention, which is used to solve the problems described above, is characterized in that the driving force of the opening and closing mechanism is buffered and transmitted to the closing counting device.

[0056] Specifically, a drive arm is provided on the rotating shaft of the opening and closing mechanism, and a buffer spring is provided between the counting rod of the indicator that connects to count and the drive arm, thereby buffering the driving force of the drive arm and transmitting it to the counting rod.

[0057] Therefore, it is possible to prevent the relatively large driving force of the opening and closing mechanism from being directly transmitted to the on-time counting device, thereby preventing damage to the on-time counting device.

[0058] Here, the circuit breaker is provided with a fixed contact, a movable contact, and an opening and closing mechanism for making the movable contact contact or separate from the fixed contact.

[0059] An actuating pin is provided on one side of the buffer spring, the actuating pin being configured to contact the drive arm, and an operating lever is provided on the other side of the buffer spring, capable of contacting the counting rod.

[0060] Here, the drive arm is configured to apply pressure to the actuating pin when the opening and closing mechanism is engaged.

[0061] An embodiment of the present invention provides a circuit breaker switching counting device for counting the number of times the circuit breaker is switched on. The circuit breaker switching counting device includes: a fixed contact; a movable contact that contacts or separates from the fixed contact; and an opening and closing mechanism that accumulates spring force by converting the rotational motion of a rotating shaft, and uses the accumulated spring force to make the movable contact contact or separate from the fixed contact. The circuit breaker switching counting device includes: a drive arm that is coupled to the rotating shaft; an indicator that displays the number of switching on; a counting rod that is configured to rotate on one side of the indicator to count the number of switching on; an actuating pin that is configured to contact the drive arm and is capable of lifting and lowering; an operating lever that is configured to press the counting lever at one end; and a buffer spring that is collapsible between the actuating pin and the operating lever.

[0062] Therefore, it is possible to accurately count the connection (closing) when the opening and closing mechanism is turned on.

[0063] In addition, it can buffer the driving force of the opening and closing mechanism and transmit it to the indicator.

[0064] With this configuration, the indicator can accurately count the activation immediately after the opening and closing mechanism is activated, and buffers the transmission of the driving force of the opening and closing mechanism, thereby preventing damage to the indicator and the counting rod.

[0065] In one embodiment of the invention, it further includes: a bracket supporting the actuating pin and the operating lever so as to be movable relative to each other; and a support member connected to the indicator and the bracket to support the indicator and the bracket; the buffer spring is coupled such that the actuating pin is accommodated inside the buffer spring; and the actuating pin is provided with a radially expanding support portion such that it can support one end of the buffer spring.

[0066] Therefore, the movement of the actuating pin and the operating lever can proceed smoothly.

[0067] In addition, the extension and retraction of the buffer spring can be performed smoothly.

[0068] In one embodiment of the present invention, the support portion is disposed on the lower side of the bracket, and the lower end of the buffer spring contacts the top surface of the operating rod.

[0069] Therefore, when the actuating pin descends, the buffer spring is compressed and accumulates elastic force. Through the accumulated elastic force, the operating lever can be pressed downward.

[0070] In one embodiment of the present invention, the bracket is provided with a lifting guide to guide the action pin to move up and down.

[0071] Therefore, the lifting and lowering of the actuating pin can be carried out smoothly.

[0072] In one embodiment of the present invention, a guide surface for guiding the action pin is provided inside the lifting guide member, and the lifting guide member is combined with the top surface of the bracket to protrude upward.

[0073] The lifting guide is in the shape of a circular ring.

[0074] The lifting guide can engage with the top surface of the bracket.

[0075] This configuration allows for a reduction in the thickness of the support structure, thereby enabling smooth fabrication of the support.

[0076] Therefore, the lateral displacement of the action pin during lifting and lowering can be suppressed.

[0077] In one embodiment of the present invention, a rotating shaft is provided on either side of the contact surfaces of the operating lever and the bracket, and a rotating shaft hole for accommodating the rotating shaft is provided on the other side.

[0078] Therefore, the operating lever can rotate relative to the bracket about the rotation axis.

[0079] In one embodiment of the present invention, the operating lever is provided with a rotating shaft so that it can rotate relative to the bracket, and the bracket is provided with a rotating shaft hole to accommodate the rotating shaft.

[0080] In one embodiment of the present invention, a protrusion protruding from either the bracket or the support member and a protrusion receiving portion formed on the other member to accommodate the protrusion are provided in the area where the bracket and the support member contact each other.

[0081] This can suppress the occurrence of gaps between the bracket and the support member.

[0082] In addition, it can reduce the number of fastening components used to secure the bracket and the support.

[0083] In one embodiment of the present invention, the indicator is attached to the front side of the support member; the bracket is disposed on the back side of the support member; and an isolation member for adjusting the assembly position of the bracket and the support member is provided in the area where the bracket and the support member contact each other.

[0084] Here, the spacers can be implemented as a plurality of spacers having different thicknesses.

[0085] Therefore, the position of the actuating pin relative to the drive arm can be easily adjusted.

[0086] In one embodiment of the present invention, the support member is provided with a fastening member engagement portion that engages with a fastening member that engages with the isolation member; the bracket is provided with a bracket fastening member that engages with the isolation member.

[0087] Therefore, with the isolation member disposed on the back of the support member, the isolation member can be integrally connected to the support member through the support member fastening member, and the bracket can be integrally connected to the isolation member through the bracket fastening member.

[0088] In one embodiment of the present invention, the bracket has: a top portion; a first sidewall portion that bends downward from one side of the top portion; a second sidewall portion that bends downward from the other side of the top portion; and a bent portion that bends from the first sidewall portion to contact the spacer surface; the bent portion is provided with a fastening member engagement portion that allows the bracket fastening member fastened to the spacer to engage.

[0089] This allows for a secure connection between the bracket and the isolation element.

[0090] In one embodiment of the invention, the support member is provided with a through-hole, allowing the operating rod to pass through the opening and come into contact with the counting rod.

[0091] Therefore, it is easy to achieve contact between the operating lever and the counting lever.

[0092] In one embodiment of the present invention, the opening and closing mechanism is provided with a plurality of side plates arranged axially spaced along the rotation axis; the support member has: a first support member arranged parallel to the rotation axis; and a second support member that bends from the first support member and is capable of contacting the side plate surface of the opening and closing mechanism.

[0093] Therefore, the indicator is arranged side by side with the rotation axis, which improves the visibility of the number of times the indicator is activated.

[0094] In one embodiment of the present invention, the support member is provided with a connecting portion that engages with the opening and closing mechanism.

[0095] Therefore, the indicator and the support can be fixed together with the opening and closing mechanism.

[0096] In one embodiment of the present invention, the connecting portion includes: a fastening member that passes through the second support member and is fastened to the side plate of the opening and closing mechanism; and a connecting protrusion that protrudes from the second support member and is inserted into the side plate of the opening and closing mechanism.

[0097] Therefore, the fastening member can be used to prevent the support member from separating from the opening and closing mechanism, and the connecting protrusion can be used to prevent the support member from rotating relative to the opening and closing mechanism.

[0098] This configuration reduces the number of fastening components required to secure the support and the opening / closing mechanism.

[0099] In one embodiment of the invention, the counting rod has: a rotation shaft protruding from the indicator; a rod portion bending from the rotation shaft; and a protrusion protruding from the end of the rod portion toward the indicator; the operating rod is provided with a pressure portion configured to move up and down between the indicator and the rod portion, such that the protrusion can be pressed downward.

[0100] Therefore, the counting rod can be pressed smoothly by rotating the operating lever.

[0101] In one embodiment of the present invention, the operating lever has: a bottom portion; and two side wall portions that protrude upward from both sides of the bottom portion; the pressure portion is formed to protrude from the bottom portion and gradually decrease in width along the protrusion direction.

[0102] Therefore, unnecessary interference between the operating lever and the counting lever during the raising and lowering of the lever can be suppressed.

[0103] In one embodiment of the present invention, the action pin is formed such that its lower end penetrates through the bottom surface and protrudes out; a through action pin receiving hole is provided in the bottom surface, and the action pin can be relatively movably accommodated in the action pin receiving hole.

[0104] Therefore, unnecessary interference between the actuating pin and the operating lever can be suppressed when the drive arm lowers the actuating pin.

[0105] With this configuration, the driving force of the drive arm can be prevented from being directly transmitted to the operating lever, thus preventing damage to the operating lever and / or the counting lever and / or the indicator.

[0106] In one embodiment of the invention, a counting rod spring is further included to return the counting rod to its initial position; in the initial position, the spring force of the buffer spring is smaller than that of the counting rod spring, and when the buffer spring is compressed due to the downward movement of the actuating pin, the spring force of the buffer spring is greater than that of the counting rod spring.

[0107] Therefore, when the drive arm moves the actuating pin downward, the driving force can be transmitted to the counting rod after being buffered, and when the drive arm and the actuating pin are not in contact, the operating rod and the actuating pin can return to their initial positions by the elastic force of the counting rod spring.

[0108] Invention Effects

[0109] As described above, according to an embodiment of the present invention, a drive arm is provided that is coupled to the rotating shaft of the opening and closing mechanism, an actuating pin that can contact the drive arm, an operating lever that can press the counting rod of the indicator, and a retractable buffer spring is sandwiched between the actuating pin and the operating lever, thereby buffering the driving force of the opening and closing mechanism and transmitting it to the counting rod.

[0110] In addition, the drive arm is configured to pressurize the actuating pin when the opening and closing mechanism is turned on, thereby enabling accurate counting of the number of times the opening (closing) is performed immediately after the opening and closing mechanism is turned on.

[0111] In addition, a bracket is provided to support the actuating pin and the operating lever so that they can move relative to each other, thereby enabling the smooth movement of the actuating pin and the operating lever.

[0112] In addition, a support member is provided that connects to the indicator and the bracket, thereby providing stable support for the indicator and the bracket.

[0113] Furthermore, the buffer spring is configured to house the actuating pin within it, and the actuating pin is provided with a support portion that supports one end of the buffer spring, thereby enabling the buffer spring to extend and retract smoothly.

[0114] In addition, the bracket is provided with a lifting guide to guide the lifting and lowering of the actuating pin, thereby suppressing lateral displacement of the actuating pin when it is lifted and lowered.

[0115] In addition, the lifting guide is designed to protrude from the top surface of the bracket, thereby reducing the thickness of the bracket and making its manufacture easier.

[0116] In addition, protrusions and protrusion receiving portions that engage with each other are provided in the area where the bracket and the support member contact each other, thereby reducing the number of fastening members fastened to the bracket and the support member.

[0117] In addition, an isolation member is provided between the support member and the bracket, thereby allowing easy adjustment of the position of the actuating pin relative to the drive arm.

[0118] In addition, the bracket is provided with a top part, a first side wall part, a second side wall part, and a curved part that bends from the first side wall part and contacts the surface of the spacer, thereby enabling the bracket and the spacer to be firmly connected.

[0119] In addition, an opening is formed through the support member, thereby enabling smooth contact between the operating lever and the counting lever.

[0120] In addition, the support member is provided with a first support member arranged side by side with the rotation axis and a second support member that contacts the side plate surface of the opening and closing mechanism, thereby enabling smooth identification of the number of times the indicator is turned on.

[0121] In addition, the joint of the support member is provided with a fastening member that is connected to the side plate of the opening and closing mechanism through the second support member and a connecting protrusion that protrudes from the second support member and is inserted into the side plate of the opening and closing mechanism, thereby reducing the number of fastening members.

[0122] In addition, the counting rod is provided with a rotating shaft, a rod part and a protrusion. The operating rod is provided with a pressure part. The pressure part is arranged between the indicator and the rod part so as to be able to move up and down, so that pressure can be applied to the protrusion, thereby allowing the pressing operation of the counting rod to be performed smoothly.

[0123] In addition, the pressure section is configured such that its width gradually decreases along the protruding direction, thereby suppressing unnecessary interference between the operating lever and the indicator.

[0124] In addition, the operating lever is provided with a bottom part and two side walls. An action pin receiving hole is provided on the bottom part. The action pin receiving hole accommodates the action pin so that it can move relative to the action pin, thereby preventing the driving force of the drive arm from being directly transmitted to the operating lever.

[0125] Furthermore, in the initial position, the spring force of the buffer spring is less than that of the counting rod spring. When the buffer spring is compressed due to the downward movement of the actuating pin, the spring force of the buffer spring is greater than that of the counting rod spring. Thus, when the driving arm moves the actuating pin downward, the driving force is buffered and then transmitted to the counting rod. When the driving arm and the actuating pin are not in contact, the operating rod and the actuating pin can return to the initial position through the spring force of the counting rod spring. Attached Figure Description

[0126] Figure 1 This is a diagram illustrating an example of the switching mechanism of an existing circuit breaker.

[0127] Figure 2 It is shown Figure 1 The diagram shows the rotating shaft of the opening and closing mechanism and the counting device for the number of openings and closings.

[0128] Figure 3 yes Figure 2 A 3D view of the control lever.

[0129] Figures 4 to 6 These are for explanation Figure 2 The function of the opening and closing count device is shown in the diagram.

[0130] Figure 7 This is a diagram showing the usage state of a circuit breaker on-time counting device according to an embodiment of the present invention.

[0131] Figure 8 yes Figure 7 An enlarged 3D view of the main parts of the opening and closing mechanism.

[0132] Figure 9 yes Figure 7 An enlarged 3D view of the circuit breaker's on / off counting device.

[0133] Figure 10 It is shown Figure 9 A three-dimensional view of the top surface of the circuit breaker's on / off counting device.

[0134] Figure 11 yes Figure 9 A 3D view of the back of the indicator.

[0135] Figure 12 yes Figure 9 A three-dimensional view of the supporting components.

[0136] Figure 13 yes Figure 12 A three-dimensional view of the back of the support component.

[0137] Figure 14 yes Figure 9 A three-dimensional view of the isolation component.

[0138] Figure 15 yes Figure 9 A three-dimensional view of the power transmission unit.

[0139] Figure 16 yes Figure 15 A three-dimensional view of the back of the power transmission unit.

[0140] Figure 17 yes Figure 16 An exploded 3D view of the power transmission unit.

[0141] Figure 18 yes Figure 17 A 3D view of the back of the bracket.

[0142] Figure 19 yes Figure 17 The main view of the pin.

[0143] Figure 20 yes Figure 17 Top view of the control lever.

[0144] Figure 21 yes Figure 7 Enlarged view of the main part of the drive arm area before the energy release of the opening and closing mechanism.

[0145] Figure 22 It is shown Figure 21 A diagram of the drive arm region after the opening and closing mechanism releases energy. Detailed Implementation

[0146] The embodiments disclosed in this specification will now be described in detail with reference to the accompanying drawings. In this specification, identical or similar reference numerals are used for identical or similar configurations, even in different embodiments, and the first description replaces the subsequent descriptions. Unless the context clearly indicates otherwise, the singular expressions used in this specification include the plural expressions. Furthermore, in describing the embodiments described in this specification, detailed descriptions of relevant well-known technologies will be omitted if they are deemed to obscure the main idea of ​​the disclosed embodiments. It should also be noted that the drawings are merely for ease of understanding of the embodiments disclosed in this specification, and the technical concept of the present invention should not be limited by the drawings.

[0147] Figure 7 This is a diagram illustrating the usage state of a circuit breaker on-time counting device according to an embodiment of the present invention. Figure 8 yes Figure 7 An enlarged 3D view of the main parts of the opening and closing mechanism. Figure 9 yes Figure 7 An enlarged 3D view of the circuit breaker's on / off counting device. Figure 10 It is shown Figure 9A three-dimensional view of the top surface of the circuit breaker's on / off counting device. (See image below.) Figures 7 to 10 As shown, the circuit breaker's on / off counting device 300 in this embodiment includes a drive arm 310, an indicator 320, a counting rod 330, an action pin 350, an operating rod 360, and a buffer spring 370.

[0148] For example, the circuit breaker 110 may have a vacuum container (not shown), a vacuum interrupter 120 having a fixed contact (not shown) and a movable contact (not shown) disposed inside the vacuum container, an opening and closing mechanism 150 providing driving force to the vacuum interrupter 120, and a transfer section 190 disposed below the vacuum interrupter 120 and the opening and closing mechanism 150.

[0149] In this embodiment, although the circuit breaker 110 is illustrated as a vacuum circuit breaker with a vacuum interrupter, this is merely an example and not a limitation. The circuit breaker 110 can also be implemented as an air circuit breaker.

[0150] For example, the transfer unit 190 may have a rectangular trolley 191 and a plurality of wheels 192, with the plurality of wheels 192 respectively arranged on both sides of the trolley 191 to enable movement.

[0151] For example, such as Figure 8 As shown, the opening and closing mechanism 150 may include a frame 160 and a mechanism part 170, wherein the mechanism part 170 is configured to move relative to the frame 160.

[0152] An accommodating space is formed inside the frame 160.

[0153] For example, the frame 160 may have a first side plate 161 and a second side plate 162 arranged side by side and spaced apart from each other, and an upper side plate 163 disposed at the upper end of the first side plate 161 and the second side plate 162.

[0154] For example, the upper inner region of the frame 160 may have a closing button 171 and a closing button 172.

[0155] For example, the closing button 171 can be configured to perform a so-called "connection action" when pressed, causing the movable contact to contact the fixed contact.

[0156] For example, the trip button 172 can be configured to perform a so-called "disconnection action" that separates the movable contact from the fixed contact when pressed.

[0157] Inside the frame 160, the mechanism 170 may be provided in the area below the closing button 171 and the opening button 172.

[0158] For example, the mechanism 170 may be configured to include a plurality of connecting members and a plurality of springs that can be movably coupled to each other, so that the switching action and / or disconnection action can be performed respectively. Here, since the configuration of the plurality of connecting members and the plurality of springs for the switching action and the disconnection action is known technology, a detailed description is omitted.

[0159] On the other hand, a connecting spring (not shown) that provides elastic force to move the movable contact toward the fixed contact side, a crank assembly 175 for storing the elastic force of the connecting spring, and a cam assembly 180 may be provided in the lower region inside the first side plate 161 and the second side plate 162.

[0160] For example, the cam assembly 180 is configured to have a rotation axis 181 and a cam plate coupled to the rotation axis 181. The cam assembly 180 may be configured to rotate in a charging region and a discharging region divided circumferentially around the rotation axis 181.

[0161] In this embodiment, the rotating shaft 181 can be configured to rotate in one direction (e.g., clockwise in the figures) along the circumferential direction.

[0162] For example, the rotating shaft 181 may be configured as a cut-off portion 182 having a portion of its circumference recessed inward. The cut-off portion 182 may extend axially.

[0163] In this embodiment, the rotating shaft 181 may be configured to protrude toward one side (left side in the figure) of the second side plate 162.

[0164] The rotating shaft 181 is provided with a protruding end 181a that protrudes outward from the opening and closing mechanism 150 (second side plate 162).

[0165] The drive arm 310 may be attached to the protruding end 181a of the rotating shaft 181 that protrudes outward toward the second side plate 162.

[0166] Here, the protruding end 181a of the rotating shaft 181 can protrude to the length of the drive arm 310 that can be configured in the action pin 350 of the on-counting device 300.

[0167] For example, the drive arm 310 may be configured to protrude radially to one side along the rotation axis 181.

[0168] On one side of the drive arm 310 along the axial direction of the rotation axis 181, an anti-detachment member 315 may be provided to prevent the drive arm 310 from detaching.

[0169] For example, the anti-detachment component 315 can be implemented with a retaining ring.

[0170] The drive arm 310 has a disc-shaped body 3101 and a protrusion 3103 that protrudes radially along the body 3101. The protrusion 3103 may be configured such that its width gradually decreases along the protrusion direction.

[0171] A through-hole 3102 for the rotating shaft 181 may be formed in the main body 3101 to allow the rotating shaft 181 to be inserted therein. For example, the rotating shaft hole 3102 may be formed to correspond to the cross-sectional shape of the rotating shaft 181. Thus, the rotation direction of the drive arm 310 relative to the rotating shaft 181 can be restricted when it is engaged with the rotating shaft 181.

[0172] One side of the protrusion 3103 (the left side in the figure) may be formed with a pressure surface 3104 that contacts the actuating pin 350 and applies pressure to the actuating pin 350.

[0173] The pressure surface 3104 can have a curved cross-sectional shape. Therefore, when in contact with the actuating pin 350, the contact and sliding between the protrusion 3103 and the actuating pin 350 can proceed smoothly.

[0174] For example, the drive arm 310 may be configured to contact the actuating pin 350 when the opening and closing mechanism 150 has completed its energy storage (just before it is about to be turned on).

[0175] Additionally, the drive arm 310 can be configured to stop pressurizing the actuating pin 350 when the opening / closing mechanism 150 is activated. The actuating pin 350 can return to its initial position immediately after the opening / closing mechanism 150 is activated.

[0176] For example, the circuit breaker's on-time counting device 300 in this embodiment can be configured to be combined with one side (left side in the figure) of the opening and closing mechanism 150.

[0177] Specifically, the circuit breaker's on-time counting device 300 in this embodiment can be configured to be combined with the second side plate 162 of the opening and closing mechanism 150.

[0178] Each of the opening and closing mechanisms 150 may be provided with a fastening member engagement portion 1621 and an engagement protrusion receiving portion 1622, so that the fastening member 3811 and engagement protrusion 3812 of the circuit breaker's connection counting device 300, which will be described later, can be engaged respectively.

[0179] On the other hand, for example, the indicator 320 is in the shape of a cuboid.

[0180] A rotatable counting rod 330 is provided on one side of the indicator 320 (the right side in the figure).

[0181] The operating lever 360 is provided on one side of the counting lever 330 (the upper side in the figure).

[0182] The support member 380 is attached to the back of the indicator 320.

[0183] The bracket 390 is attached to the back of the support member 380.

[0184] The actuating pin 350 is coupled to the bracket 390 in a manner that allows for relative movement.

[0185] In this embodiment, the bracket 390, the actuating pin 350, and the operating lever 360 are combined to be movable relative to each other. From the perspective of being sandwiched between the drive arm 310 and the counting rod 330 and transmitting the driving force of the drive arm 310 to the counting rod 330, it can be called a "power transmission unit 340".

[0186] A buffer spring 370 is provided between the actuating pin 350 and the operating lever 360.

[0187] The power transmission unit 340 may also include the buffer spring 370.

[0188] Therefore, when the opening and closing mechanism 150 is activated, the driving force of the drive arm 310 can be buffered and transmitted to the counting rod 330.

[0189] With this configuration, damage to the counting rod 330 and the indicator 320 caused by the driving force of the drive arm 310 can be suppressed.

[0190] Figure 11 yes Figure 9 A 3D view of the back of the indicator. (See image below.) Figures 9 to 11 As shown, a display window 325 is provided on one side (e.g., the front) of the indicator 320 to observe the number of times the opening and closing mechanism 150 is turned on (closed).

[0191] Although not specifically shown in the accompanying drawings, a counting mechanism is provided inside the indicator 320 to increment the number (number of connections) by one with each press of the counter lever 330. The number of connections counted by the counting mechanism can be displayed externally through the display window 325.

[0192] A counting rod 330 is provided on the other side of the indicator 320 (the right end in the figure).

[0193] The counting rod 330 may be configured to rotate relative to the indicator 320.

[0194] Specifically, for example, the counting rod 330 may have a rotating shaft 3301, a rod portion 3302 bent from the rotating shaft 3301, and a protrusion 3303 protruding from the end of the rod portion 3302 toward the indicator 320.

[0195] For example, a counting rod spring 335 may be provided inside the indicator 320 to apply elastic force and return the counting rod 330 to its initial position. For example, the counting rod spring 335 may be configured to accumulate elastic force when the counting rod 330 is pressed (rotated downwards), and utilize the accumulated elastic force to return (rotated upwards) to the initial position when the pressing of the counting rod 330 is released. For example, the counting rod spring 335 may be implemented as a torsion coil spring or a spiral spring.

[0196] For example, the indicator 320 may be provided with a flange 322 extending in the vertical direction. For example, the flange 322 may be provided with an upper flange 3221 extending upward on the back side of the indicator 320 and a lower flange 3222 extending downward on the back side of the indicator 320.

[0197] The upper flange 3221 and the lower flange 3222 may each be provided with a plurality of fastening members 323.

[0198] The upper flange 3221 and the lower flange 3222 may each be provided with two or more of the fastening members 323.

[0199] For example, a plurality of the fastening members 323 can be implemented with bolts.

[0200] For example, the protrusion 3303 of the counting rod 330 can be screw-shaped.

[0201] For example, the protrusion 3303 can be configured as a rod portion 3302 threadedly connected to the counting rod 330.

[0202] For example, the protrusion 3303 may be provided with a protruding end 3303a that protrudes from the rod portion 3302.

[0203] For example, the protruding end 3303a may be in the shape of a round bar to contact the operating lever 360.

[0204] Figure 12 yes Figure 9 A three-dimensional view of the support components. Figure 13 yes Figure 12 A perspective view of the back of the support component. For example, such as... Figure 12 and Figure 13 As shown, the support member 380 may have: a first support member 3801, which is arranged side by side with the rotating shaft 181; and a second support member 3802, which bends from the first support member 3801 and can contact the side plate (second side plate 162) of the opening and closing mechanism 150.

[0205] For example, the first support 3801 can contact the back of the indicator 320.

[0206] The indicator 320 may be attached to one side (front) of the first support member 3801.

[0207] The first support member 3801 is provided with a plurality of fastening member joints 3803, so that the plurality of fastening members 323 passing through the indicator 320 can be joined.

[0208] A plurality of the fastening member joints 3803 are formed by penetrating the first support member 3801.

[0209] An opening 3804 may be formed through the support member 380 to allow the operating lever 360 to be extended.

[0210] The opening 3804 may be formed in the first support member 3801.

[0211] For example, the opening 3804 can be rectangular in shape.

[0212] The right side of the opening 3804 can be formed at the boundary between the first support 3801 and the second support 3802.

[0213] The left side of the opening 3804 can be formed to be separated from the left end of the first support 3801.

[0214] like Figure 10 As shown, the bracket 390 is attached to the back of the support member 380 through the spacer member 385.

[0215] The support member 380 may have a protrusion receiving portion 3805, which can accommodate the protrusion 3905 of the bracket 390.

[0216] For example, the protrusion receiving portion 3805 may be formed through the protrusion 3905 in a shape corresponding to that of the protrusion.

[0217] For example, the protrusion receiving portion 3805 may be formed through the first support member 3801.

[0218] The support member 380 may be provided with a connecting part 381 that engages with the opening and closing mechanism 150.

[0219] For example, the connecting portion 381 may have: a fastening member 3811, which is fastened to the opening and closing mechanism 150 by the support member 380; and a connecting protrusion 3812, which protrudes from the support member 380 and is inserted into the opening and closing mechanism 150.

[0220] This reduces the number of fastening components required for the connection between the support 380 and the opening / closing mechanism 150.

[0221] For example, the fastening member 3811 of the joint 381 can be configured as a frame 160 (in this embodiment, a second side plate 162) that is threadedly connected to the opening and closing mechanism 150.

[0222] Therefore, the fastening member 3811 of the opening and closing mechanism 150 can prevent the support member 380 from separating from the opening and closing mechanism 150 by means of the fastening member 3811 of the support member 380.

[0223] The support member 380 can be inhibited from rotating relative to the opening and closing mechanism 150 by means of the engagement protrusion 3812 of the engagement protrusion 3812 of the engagement protrusion 3812 of the engagement protrusion 3812.

[0224] Specifically, for example, the fastening member 3811 and the connecting protrusion 3812 may be disposed on the second support member 3802.

[0225] The second support member 3802 may have a through-hole 3806 for receiving a rotating shaft, so that the rotating shaft 3604 of the operating lever 360 can be received.

[0226] Figure 14 yes Figure 9 A three-dimensional view of the isolation component. (See image below.) Figure 14 As shown, the spacer 385 can be in the shape of a rectangular plate.

[0227] Although this embodiment illustrates a case where the spacer 385 is implemented as a rectangular plate, this is merely an example and is not a limitation.

[0228] The isolator 385 can be inserted between the support 380 and the bracket 390.

[0229] The isolator 385 may be provided with a fastening member engagement portion 3851, which allows the plurality of fastening members 323 of the indicator 320 and the support 380 to engage. The isolator 385 may be provided with a bracket fastening member engagement portion 3852, which allows the bracket fastening members 397 of the bracket 390 described later to engage.

[0230] Figure 15 yes Figure 9A three-dimensional view of the power transmission unit. Figure 16 yes Figure 15 A three-dimensional view of the back of the power transmission unit. Figure 17 yes Figure 16 An exploded 3D view of the power transmission unit. Figure 18 yes Figure 17 A 3D view of the back of the bracket. Figure 19 yes Figure 17 The main view of the pin. Figure 20 yes Figure 17 A top view of the control lever. (See attached image.) Figures 15 to 20 As shown above, the power transmission unit 340 may be equipped with an action pin 350, a buffer spring 370, an operating lever 360, and a bracket 390.

[0231] For example, the bracket 390 may have a top portion 3901, a first sidewall portion 3902 that bends downward from one side of the top portion 3901, a second sidewall portion 3903 that bends downward from the other side of the top portion 3901, and a curved portion 3906 that bends from the first sidewall portion 3902.

[0232] On one side of the top surface 3901 (the front side in the drawing), a protrusion 3905 may be formed to engage with the support member 380. For example, the protrusion 3905 may be implemented with a rectangular cross-section.

[0233] For example, the bracket 390 may be provided with a lifting guide 395 to guide the lifting of the actuating pin 350.

[0234] Therefore, it is possible to suppress the lateral displacement of the actuating pin 350 when the actuating pin 350 is raised or lowered.

[0235] In addition, the upper end of the actuating pin 350 can repeatedly contact the drive arm 310 at a precise position.

[0236] For example, the lifting guide 395 can be disposed on the top surface 3901.

[0237] For example, the lifting guide 395 can be in the shape of a circular ring.

[0238] The lifting guide 395 may be provided with a guide surface 3951 for guiding the action pin 350.

[0239] The guide surface 3951 can be disposed inside the lifting guide 395.

[0240] For example, the lifting guide 395 may be configured to protrude upward on the top surface of the top part 3901.

[0241] For example, the lifting guide 395 can be welded to the top surface of the top part 3901.

[0242] For example, the curved portion 3906 may be formed to bend outward from one end (front end) of the first sidewall portion 3902.

[0243] For example, the curved portion 3906 can be in the form of a rectangular plate.

[0244] For example, a bracket fastening member engagement portion 3907 may be provided in the bend 3906, so that the bracket fastening member 397 for fastening the bracket 390 can be engaged. For example, the bracket fastening member engagement portion 3907 may be formed through the bend 3906.

[0245] like Figure 18 As shown, a rotating shaft hole 3904 can be formed through the first side wall portion 3902 and the second side wall portion 3903 respectively, so that the rotating shaft 3604 of the operating lever 360 can be accommodated.

[0246] The actuating pin 350 is provided inside the bracket 390.

[0247] For example, the action pin 350 is cylindrical.

[0248] A support portion 3501 is provided on the actuating pin 350 so as to support one end (upper end) of the buffer spring 370.

[0249] For example, the support portion 3501 may be configured to protrude radially from the outer surface of the actuating pin 350.

[0250] For example, the support portion 3501 can be implemented as protruding radially along the action pin 350 and extending in the circumferential direction.

[0251] The upper region of the action pin 350 can penetrate the bracket 390 and protrude to the upper side of the bracket 390.

[0252] The upper end of the actuating pin 350 can be configured to contact the drive arm 310.

[0253] For example, a guide portion 3502 for guiding the drive arm 310 may be provided at the upper end of the actuating pin 350.

[0254] For example, such as Figure 19 As shown, the guide portion 3502 is formed by cutting out sections to gradually decrease in width.

[0255] The guide portion 3502 may be configured to extend along the circumferential direction of the actuating pin 350.

[0256] This allows for smooth contact with the drive arm 310.

[0257] The buffer spring 370 can be attached to the actuating pin 350.

[0258] For example, the buffer spring can be configured to extend and retract along the lifting direction of the actuating pin 350.

[0259] For example, the buffer spring 370 can be implemented by a compression coil spring.

[0260] For example, the buffer spring 370 can be configured such that its inner diameter is larger than the outer diameter of the actuating pin 350.

[0261] The buffer spring 370 can be configured such that its outer diameter is smaller than the inner width of the bracket 390.

[0262] Thus, the buffer spring 370 can be attached to the periphery of the actuating pin 350 and disposed inside the bracket 390.

[0263] For example, the spring force of the buffer spring 370 in the initial position is less than the spring force of the counting rod spring 335, and the spring force accumulated when the buffer spring 370 is compressed by the downward movement of the actuating pin 350 is greater than the spring force of the counting rod spring 335.

[0264] It can be configured such that one end (upper end) of the buffer spring 370 contacts the support portion 3501 of the actuating pin 350, while the lower end contacts the operating lever 360 (the top surface of the bottom portion 3601 described later).

[0265] The buffer spring 370 can be engaged between the actuating pin 350 and the operating lever 360 in a slightly compressed state, so as to accumulate a preset elastic force.

[0266] According to this configuration, since the downward pressure of the drive arm 310 causes the actuating pin 350 to descend, the accumulated elastic force of the buffer spring 370 is greater than the elastic force of the counting rod spring 335. Therefore, when the counting rod spring 335 is compressed, the counting rod 330 can descend.

[0267] Furthermore, when the pressure on the actuating pin 350 caused by the rotation of the drive arm 310 is released, the elastic force of the buffer spring 370 decreases, and at the same time, the operating lever 360 returns to its initial position by the elastic force of the counting lever spring 335.

[0268] As the operating lever 360 returns to its initial position, the actuating pin 350 can also return to its initial position due to the elastic force of the buffer spring 370.

[0269] For example, the operating lever 360 may be configured to have a bottom portion 3601 and two side wall portions 3602 protruding upward on both sides of the bottom portion 3601, thus having a "U" shaped cross section.

[0270] Rotating shafts 3604 that can rotate relative to the bracket 390 may be respectively provided on the two side walls 3602.

[0271] For example, the rotating shaft 3604 can be respectively provided on one side (the rear side in the figure) of the two side walls 3602.

[0272] For example, the rotating shaft 3604 may be configured to have an external threaded portion for threading into the two side wall portions 3604 respectively, and its ends may be configured to protrude outwards from the two side wall portions 3604 respectively. For example, the protruding ends of the rotating shaft 3604 protruding outwards from the two side wall portions 3604 may be rotatably coupled into the rotating shaft holes 3904 of the bracket 390. Here, a bushing may be sandwiched between the protruding ends of the rotating shaft 3604 and the rotating shaft holes 3904.

[0273] The actuating pin 350 and the buffer spring 370 may be provided on the inner side of the two side walls 3602.

[0274] A pin receiving hole 3603 is provided on the bottom part 3601 so that the pin 350 can protrude downward.

[0275] For example, such as Figure 20 As shown, the action pin receiving hole 3603 can be formed in an elongated hole shape, allowing the action pin 350 to move relative to each other.

[0276] The actuating pin receiving hole 3603 can be configured to be larger than the outer diameter of the actuating pin 350 but smaller than the outer diameter of the buffer spring 370.

[0277] The operating lever 360 is provided with a pressure-applying part 3605, which enables pressure to be applied to the counting lever 330.

[0278] For example, the pressurizing part 3605 may be configured to protrude forward from one side (front end) of the bottom part 3601.

[0279] For example, the pressure section 3605 can be formed such that its width gradually decreases along the protruding direction.

[0280] For example, the pressurizing part 3605 can be configured to move relative to the indicator 320 and the rod portion 3302 of the counting rod 330.

[0281] The pressure part 3605 can be disposed on the upper side of the protrusion 3303 (protrusion end 3303a) of the counting rod 330.

[0282] The pressurizing part 3605 can be configured such that its bottom surface contacts the top surface of the protrusion 3303 (protrusion end 3303a) of the counting rod 330.

[0283] Therefore, when the operating rod 360 is rotated downward by the actuating pin 350 and the buffer spring 370, the counting rod 330 can be pressed downward to achieve the pressing operation.

[0284] Figure 21 yes Figure 7 An enlarged view of the main part of the drive arm area before the energy release of the opening and closing mechanism. Figure 22 It is shown Figure 21 A diagram of the drive arm region after the opening and closing mechanism releases energy.

[0285] With this configuration, when the circuit breaker's on-time counting device 300 of this embodiment is to be combined with the opening and closing mechanism 150, the second support member 3802 of the circuit breaker's on-time counting device 300 is configured correspondingly to one side of the opening and closing mechanism 150 (the left side of the second side plate 162).

[0286] Here, for example, the circuit breaker's on / off counting device 300 in this embodiment can be engaged when the opening / closing mechanism 150 is de-energized.

[0287] like Figure 22 As shown, if the connecting protrusion 3812 and the fastening member 3811 of the second support member 3802 are respectively connected to the connecting protrusion receiving portion 1622 and the fastening member connecting portion 1621 of the second side plate 162, then the action pin 350 can be arranged on one side of the drive arm 310 (front in the figure).

[0288] Here, the counting rod 330 is positioned in an initial upward rotation position by the elastic force of the counting rod spring 335.

[0289] In addition, the actuating pin 350 is positioned at an initial position protruding towards the upper side of the bracket 390 by the elastic force of the buffer spring 370.

[0290] Furthermore, the operating lever 360 is positioned in its initial position by the elastic force of the counting lever spring 335, i.e., in contact with the upper side of the counting lever 330.

[0291] On the other hand, when the opening and closing mechanism 150 (connecting spring) is storing energy, the rotating shaft 181 rotates in one direction (clockwise in the figure), and the driving arm 310 rotates away from the actuating pin 350.

[0292] If the energy storage of the opening and closing mechanism 150 is completed, then as Figure 21 As shown, the protrusion 3103 of the drive arm 310 is disposed on the upper side of the actuating pin 350.

[0293] If the closing button 171 of the opening and closing mechanism 150 is pressed, the closing action of the closing spring is executed, and the rotating shaft 181 and the driving arm 310 rotate clockwise.

[0294] If the drive arm 310 rotates, the pressure part 3605 of the drive arm 310 applies downward pressure to the upper end of the action pin 350 while rotating.

[0295] If the actuating pin 350 descends, the buffer spring 370 is compressed, thereby accumulating elastic force. The operating lever 360 rotates downwards due to the elastic force of the buffer spring 370.

[0296] At this time, because the elastic force accumulated when the buffer spring 370 is compressed becomes greater than the elastic force of the counting rod spring 335, the counting rod 330 is pressurized and rotates downward. Thus, the number of times the opening / closing mechanism 150 is turned on (closed) is counted, and the counting mechanism displays the number after incrementing the number of turns on (closed) by 1.

[0297] If the drive arm 310 passes through the actuating pin 350 and the pressure on the actuating pin 350 is released, the buffer spring 370 extends while its elastic force decreases, and decreases to a level smaller than the elastic force of the counting rod spring 335.

[0298] Therefore, the counting rod 330 rotates upward to its initial position by the elastic force of the counting rod spring 335, and the operating rod 360 rotates upward by means of the counting rod 330.

[0299] On the other hand, such as Figure 22 As shown, the action pin 350 moves upward to its initial position due to the elastic force of the buffer spring 370.

[0300] The actuating pin 350 is positioned in the initial position in front of the protrusion 3103 of the already energized drive arm 310.

[0301] As mentioned above, the drive arm 310 repeatedly performs the following process: when the opening and closing mechanism 150 is accumulating energy, it is positioned above the action pin 350 which is initially positioned; and when the opening and closing mechanism is releasing energy, it applies downward pressure to the action pin 350, thereby counting the number of times the switch is turned on (closed) through the counting rod 330.

[0302] The specific embodiments of the present invention have been illustrated and described above. However, the present invention can be implemented in various ways without departing from the spirit or essential characteristics of the invention, and therefore the present invention should not be limited to the detailed description of the embodiments described above.

[0303] Furthermore, although not all embodiments listed in the foregoing detailed description are included, they should be broadly interpreted within the scope of the technical concept defined in the claims. Moreover, all modifications and variations included within the technical scope of the claims and their equivalents should fall within the protection scope of this invention.

[0304] Explanation of reference numerals in the attached figures

[0305] 110: Circuit Breaker

[0306] 120: Vacuum interrupter chamber

[0307] 150: Opening and closing mechanism

[0308] 160: Frame

[0309] 161: First side panel

[0310] 162: Second side panel

[0311] 1621: Fastening component joint

[0312] 1622: Combined with protruding receiving part

[0313] 163: Upper side panel

[0314] 190: Transfer Department

[0315] 191: Large vehicle

[0316] 192: Wheel

[0317] 170: Department of Organization

[0318] 171: Close button

[0319] 172: Trip button

[0320] 175: Crank assembly

[0321] 180: Cam assembly

[0322] 181: Rotation axis

[0323] 181a: Protruding end

[0324] 182: Resected area

[0325] 300: Circuit breaker connection counting device

[0326] 310: Drive arm

[0327] 3101: Main Body

[0328] 3102: Rotary shaft hole

[0329] 3103: Protrusion

[0330] 3104: Pressure surface

[0331] 315: Anti-detachment components

[0332] 320: Indicator

[0333] 322: Flange

[0334] 3221: Upper flange

[0335] 3222: Lower flange

[0336] 323: Fastening components

[0337] 325: Display Window

[0338] 330: Counting rod

[0339] 3301: Rotating shaft

[0340] 3302: Pole section

[0341] 3303: Protrusion

[0342] 3303a: Protruding end

[0343] 335: Counting rod spring

[0344] 340: Power Transmission Unit

[0345] 350: Functional pin

[0346] 3501: Support section

[0347] 3502: Guidance Department

[0348] 360: Joystick

[0349] 3601: Bottom surface

[0350] 3602: Both side walls

[0351] 3603: Functional pin receiving hole

[0352] 3604: Rotating shaft

[0353] 3605: Pressurization section

[0354] 370: Buffer spring

[0355] 380: Support component

[0356] 3801: First support component

[0357] 3802: Second support component

[0358] 3803: Fastening component joint

[0359] 3804: Opening

[0360] 3805: Protruding Receiving Part

[0361] 3806: Rotating shaft receiving hole

[0362] 381: Joint

[0363] 3811: Fastening components

[0364] 3812: Combined protrusion

[0365] 385: Isolation component

[0366] 390: Stent

[0367] 3901: Top face

[0368] 3902: First sidewall portion

[0369] 3903: Second sidewall portion

[0370] 3904: Rotating shaft hole

[0371] 3905: Protrusion

[0372] 3906: Bend

[0373] 3907: Joint of fastening components of bracket

[0374] 395: Lifting Guide

[0375] 3951: Guiding surface

[0376] 397: Bracket fastening components

Claims

1. A circuit breaker switching counting device for counting the number of times the circuit breaker is switched on, the circuit breaker comprising: Fixed contact; The movable contact can contact or separate from the fixed contact; as well as The opening and closing mechanism accumulates elastic force by changing the rotational motion of the rotating shaft, and uses the accumulated elastic force to make the movable contact contact or separate from the fixed contact; The connection counting device includes: The drive arm is connected to the rotating shaft; An indicator displays the number of times the call was connected; A counting rod is configured to rotate on one side of the indicator to count the number of times the signal is switched on; An actuating pin is configured to contact the drive arm and be able to move up and down; An operating lever is configured such that one end is capable of pressing the counting lever; and A buffer spring is clamped between the actuating pin and the operating lever to be extendable; The drive arm is configured to apply pressure to the actuating pin when the opening / closing mechanism is engaged.

2. The circuit breaker switching counting device according to claim 1, wherein, Also includes: A bracket supports the actuating pin and the operating lever so that they can move relative to each other; and A support member, connected to the indicator and the bracket, supports the indicator and the bracket; The operating lever is disposed on the lower side of the bracket and is combined with the bracket so that it can rotate relative to the bracket; The actuating pin is configured to extend through the bracket at its upper end and protrude so as to contact the drive arm.

3. The circuit breaker switching counting device according to claim 2, wherein, The buffer spring is configured such that the action pin is accommodated inside the buffer spring; The actuating pin is provided with a radially expanding support portion, which can support one end of the buffer spring.

4. The circuit breaker switching counting device according to claim 3, wherein, The lower end of the buffer spring contacts the top surface of the operating lever.

5. The circuit breaker switching counting device according to claim 3, wherein, The bracket is provided with a lifting guide to guide the action pin to move up and down.

6. The circuit breaker switching counting device according to claim 5, wherein, The lifting guide has a guide surface inside to guide the action pin, and the lifting guide is combined with the top surface of the bracket to protrude upwards.

7. The circuit breaker switching counting device according to claim 2, wherein, A rotating shaft is provided on one of the contact surfaces of the operating lever and the bracket, while a rotating shaft hole for accommodating the rotating shaft is provided on the other side.

8. The circuit breaker switching counting device according to claim 2, wherein, In the area where the bracket and the support member contact each other, there is a protrusion protruding from either the bracket or the support member, and a protrusion receiving portion formed on the other to accommodate the protrusion.

9. The circuit breaker switching counting device according to claim 2, wherein, The indicator is attached to the front of the support member; The bracket is disposed on the back of the support member; An isolation element is provided in the area where the bracket and the support member contact each other, which is used to adjust the assembly position of the bracket and the support member.

10. The circuit breaker switching counting device according to claim 9, wherein, The support member is provided with a fastening member engagement portion that engages with a fastening member that is engaged with the isolation member; The bracket is provided with a bracket fastening member that is combined with the isolation member.

11. The circuit breaker switching counting device according to claim 10, wherein, The support has: Top surface; The first sidewall portion curves downward from one side of the top surface portion; The second sidewall bends downward from the other side of the top surface; as well as The curved portion bends from the first sidewall portion and contacts the surface of the insulating member; The curved portion is provided with a fastening member engagement portion that allows the fastening member of the bracket fastening member fastened to the isolation member to engage.

12. The circuit breaker switching counting device according to claim 9, wherein, The support member has a through-hole, allowing the operating lever to extend through the opening and contact the counting rod.

13. The circuit breaker switching counting device according to claim 9, wherein, The opening and closing mechanism is provided with a plurality of side plates arranged axially spaced along the rotation axis; The support member has: A first support member is arranged parallel to the rotation axis; and The second support member bends from the first support member and is able to contact the side plate surface of the opening and closing mechanism.

14. The circuit breaker switching counting device according to claim 13, wherein, The support member is provided with a connecting part that engages with the opening and closing mechanism.

15. The circuit breaker switching counting device according to claim 14, wherein, The joint includes: A fastening member, passing through the second support member, is fastened to the side plate of the opening and closing mechanism; and The protrusion protrudes from the second support member and inserts into the side plate of the opening and closing mechanism.

16. The circuit breaker switching counting device according to claim 1, wherein, The counting rod has: A rotating shaft protrudes from the indicator; The rod portion bends from the rotation axis; as well as A protrusion extends from the end of the rod toward the indicator; The operating lever is provided with a pressure part, which is configured to move up and down between the indicator and the lever, so as to apply downward pressure to the protrusion.

17. The circuit breaker switching counting device according to claim 16, wherein, The operating lever has: Underside; and The two side walls protrude upwards from both sides of the bottom surface. The pressurizing part is formed to protrude from the bottom surface and gradually decrease in width along the protrusion direction.

18. The circuit breaker switching counting device according to claim 17, wherein, The functional pin is formed such that its lower end penetrates through the bottom surface and protrudes out; A through-hole for receiving the action pin is provided on the bottom surface, and the action pin can be accommodated in the action pin receiving hole with relative movement.

19. The circuit breaker switching counting device according to any one of claims 1 to 18, wherein, It also includes a counting rod spring that returns the counting rod to its initial position; In the initial position, the spring force of the buffer spring is smaller than that of the counting rod spring. When the buffer spring is compressed due to the downward movement of the actuating pin, the spring force of the buffer spring is greater than the spring force of the counting rod spring.

Images