TW448458B - Circuit breaker - Google Patents

Abstract

An operating lever 24 is rotatably supported on a support member 21. An insulating operating rod 26 having ribs 26a is coupled between the operating lever 24, and a vacuum bulb 31 having: a movable contact 28 coupled to the operating lever 24; and a stationary contact 29 which is opposed to the movable contact 28. An insulating frame 23 is fixed to a support member 21 so as to elongate along the insulating operating rod 26. Ribs 23a are disposed on the face of the insulating frame 23 and opposed to the ribs 26a, so that the ribs and the ribs 26a alternately enter the gaps formed therebetween.

Description

44845 8

V. Description of the invention (1) Background of the invention 1. The invention of the invention The invention relates to a technique related to switching the current of the main circuit, and the related art. Fig. 8 is a side view of the invention. In the Japanese Patent Gazette (for publication, please refer to FIG. 8; 1 indicates a support member, 2 indicates-an operation mechanism fixed to, 3 indicates an insulation indicator fixed to the support member 丨 is connected to the operation mechanism 2, and can be rotated, 'Jing, and "Ticket-connected to the contact is willing to bomb J㈣: dry: contact pressure spring length of the insulated operating rod. Refer to Figure No. 7 and two insulation frame 3 extension rod 6 active current axis, 8 marked a Connected to the live and insulated operation head, 9 mark-fixed relative to the movable contact 8 :: The movement of the flow axis 7 touches the fixed current shaft of the fixed contact 9, and! 2 'shows the touch 2 and 10 marks -The connection is surrounded by-an insulator, and its inside is a vacuum ball, and the outside constitutes an-electrical connection portion (during the closing and opening of ^) or an isolation portion (mark the conductor in reference figure 13) , Which secures its connection to a closed switch board ( (Shown) etc., frame 3, and a flexible conductor, whose one end is connected to the active electricity; & ^ circuit, and 14 is connected to the lower conductor 13. Reference figure 15 indicates a solid ^ / and its other end Connected to the conductor, whose one end is connected to the busbar of the closed switch board (not shown) on the fixed current shaft 10 and the insulating frame 3. The other end is connected to the sealing pen circuit.

IH

89101455.ptd Page 5

44845 8 V. Description of the invention (2) The upper conductor 15 passes through the fixed current shaft 10, the fixed contact 9, the movable contact 8, the movable current shaft 7, and the flexible conductor 14 to the lower conductor 13. Therefore, the insulated operating rod 6 '俾 is provided to ensure the electrical insulation between the contact pressure spring 5 in the ground portion and the movable current shaft 7 and the lower conductor 13 in the live portion. The contact pressure spring 5 has the configuration shown in Figs. 9A and 9B. 9A and 9B show the main part of FIG. 8. Fig. 9A shows the state of the contact pressure spring 5 when the vacuum ball 11 is turned on, and Fig. 9B shows the state of the contact pressure spring 5 when the vacuum ball 11 is closed. Please refer to FIGS. 9 A and 9 B. 5 a indicates a spring bracket connected to the operation lever 4. 5 b indicates a coil spring disposed on the spring bracket 5 a, and 5 c indicates a stud bolt adjacent to the coil spring 5 b. The coil spring 5b and its other end are embedded in the insulating operating rod 6, and 5d indicates a stopper tab fixed to the stud bolt 5C, which abuts against the spring bracket 5a when the vacuum ball 11 is turned on. The assemblies 5 & 54 constitute a contact pressure spring 5. Next 'will explain the operation. When the vacuum ball 11 opens the row, the operation mechanism 2 operates the operation lever 4 in response to the opening command, so that the spring bracket 5a coupled to the operation lever 4 is lowered. At this time, the energy stored in the coil spring 5b is released, and the spring reed seat 5a is pressed down by the energy, which causes the spring bracket 5a to abut the stopper tab 5d and apply a force to the stopper tab, thereby bolting the column. reduce. Therefore, the operating rod 6 in which the stud 5c is embedded is insulated and connected to the insulation operation: the movable current shaft 7 and the movable contact 8 connected to the movable current shaft 7 are lowered ', so that the vacuum ball 11 is turned on. When the vacuum ball U closes the row, the response of the operating mechanism 2 = close command 'causes the operating lever 4 to operate upwards, causing the spring bracket 5a connected to the operation to rise', the insulation operating rod 6, and the connection to the insulation operation 2

44845 8 V. Description of the invention (3) The movable current shaft 7 of the vacuum ball 11 and the movable contact 8 'connected to the movable current shaft 7 are raised through the coil spring 5b in contact with the spring holder 5a, causing the movable contact 8 It is connected to the fixed contact 9 to close the vacuum ball n. After the vacuum ball n is turned off, the operation lever 4 is further operated upward, and the spring bracket 5a connected to the operation lever 4 is further raised, thereby compressing the coil spring ". The energy stored in the coil spring 使 makes the movable contact The right of the electrical connection between the 8 and the fixed contact 9 is based on the previous skill-the u, the bare edge of the bare rod 6 is configured to ensure that the contact pressure spring that is also wounded by the ground 5. : Electrical insulation between. However, in the previous =] the edge operating rod 6 has a large length in the south direction, and Bao = Yi Li, and the contact π placed under the insulating operating rod 6 increases in length. This occurs because of I A kind of circuit breaker: the size will invent the problem of sincerity. The invention is to solve this problem. The purpose of the invention is to reduce the height of the circuit breaker. To provide a circuit breaker that can be used in accordance with the invention, a circuit breaker Contains: — = type supported on a support member; spray set, with = rotatable = movable contact, and-relative to the movable contact = known as = rod, which is arranged between the operating lever and the switching device U立 = 缘 作 rod extension * 'The insulating frame is supported by a plurality of auxiliary pieces; cattle ^, along the ribs of the rod M, alternating Γ, two fins of the insulating frame and insulating operation enter the gap formed between the fins. The following 4 4 8458 5 'Description of the invention (4) Furthermore, a circuit breaker includes:-the support member; The switch device has one, a rotatably supported on-head, and a movable contact connected to the operating lever with respect to two of the movable contacts. The movable contact is arranged on the contact of the operating lever and the switching device; an insulated operating rod, which An insulating frame is arranged on a supporting structure and has a plurality of ribs; an insulating frame has a plurality of ribs, and is extended along the insulating operating rod, one side of the sheet, the ribs of the insulating frame, and the The ribs of the operating rod enter the gap formed between the fins; and the ribs of the operating rod alternately enter the pressure springs. A contact pressure spring connected to the insulated operation rod can be configured. The contact pressure spring can be configured as a Between the buckle and the insulated operating rod. The recessed part is one of the operating levers: The contact pressure spring formed on the inside of the insulated operating rod can be configured with two recessed parts, and the inner part is insulated from the switch device. Figure 1 is a detailed explanation of the inside of the rod. Figure 1 is a side view circle showing the invention according to Figure i, 2 " Ticket a support member, a kind of circuit breaker. Please refer to the operating mechanism, 23 to protect a pot μ π ^ fixed To the support member 21 and it has: two frames, which are fixed to the support member 21, Ming] of the surface-wide and 24: -piece It relative to an insulating operating rod (to be described later and its spine 'Λ 不二 V It is connected to the operating mechanism 22, and it is connected to the optional idea: "Top 21. The reference figure 25 indicates a stick, and Pingpu and 26 indicate-, insulation operation" ~ the insulation frame 23 is extended, and 俾 is arranged on the operation lever 24 and —Vacuum ball 44845 8 5. Between the description of the invention (5) (explained later), it has a plurality of fins 26a, and it is connected to the contact force spring 25. The ribs 仏 of the insulating frame 23 and the auxiliary pieces 26a of the insulating operating rod 26 are provided so as to alternately enter a gap formed therebetween. Refer to Figure No. 27. Towel—active current coaxially connected to the insulated operating rod 26 ^ '28 indicates a movable contact connected to the movable current shaft 27, 29 indicates one or two heads = fixed contact of the movable contact 28, 3 〇 indicates a connection to the fixed contact 疋 current auxiliary 'and 31 indicates a vacuum ball used as a switching device, the outer part of which is inside and inside the movable contact 28 and the fixed contact (Si Kai ^ No. 33 indicates the conductor' its fixed To the insulation frame 23, and the load circuit of the second board (not shown), etc., and the marked end of 34 is remote, and one end is connected to the movable current shaft 27, and it is also stubbed to the lower conductor 33. Refer to Figure 35 for marking An upper conductor is connected at its edge frame to its fixed end, and its main stream is connected to the sink 30 of the enclosed switch board (not shown). The fixed path is from the upper conductor 35. Via the fixed current shaft body 34, to the lower movable contact 28 ', the movable current shaft 27, and the contact of the flexible guide at the grounding part 因此 Therefore, the insulated operating rod 26 is configured to ensure 27 and the force spring f25, and Electrical insulation of electrical parts .

-® 2A ^ 2B ^ ^ ^ ^ 〇® 2A A2B The force of the elastic ball is shown in Fig. 2A shows the contact pressure I < state 'when the vacuum ball is turned on and Fig. 2 shows the dialect turbid M ea 丄 44845 8 V. State of the invention description (6). Please refer to Figures 2 A and 2 B '2 5 a indicates a spring holder connected to the operating lever 24 4 25b indicates a coil spring arranged on the spring holder 25a, 25c Mark a stud bolt abutting the coil spring 25b, one end of which passes through the coil spring 25b, and the other end is embedded into the insulating operating rod 26, and 25d is marked with a stop tab, which is fixed to the stud bolt 2 5 c When the vacuum ball 31 is turned on, it abuts against the spring bracket 25a. The components 25a to 25d constitute the contact pressure spring 25. Next, the operation will be described. When the vacuum ball 31 is to be opened, the operating mechanism 22 operates in response to the opening command The operating lever 24 causes the spring bracket 25a connected to the operating lever 24 to reduce "At this time, the energy stored in the coil spring 25b is released and the energy pushes the spring bracket 25a, thereby causing the spring bracket 25a to abut against the stop Move the tab 25d to apply a force to the stop tab, causing the stud 25c to be lowered. Therefore 'make the stud The insulated operating rod 26 embedded in 25c, the movable current shaft 27 connected to the vacuum ball 3 丨 of the insulated operating rod 26, and the movable contact 28 connected to the movable current shaft 27 are lowered, so that the vacuum ball 3 is turned on! In contrast, when the vacuum ball 31 closes the row, the operating mechanism 2 2 causes the operating lever 24 to operate in response to the closing command, causing the spring bracket 2 5 a connected to the operating lever 24 to rise. At this time, The coiled spring 2 5 b causes the insulated operating rod 2 6, the movable current shaft 27 connected to the vacuum ball 3 丨 of the insulated operating rod 26, and the movable contact 28 connected to the movable current shaft 27 to be raised, thereby causing The movable contact 28 is connected to the fixed contact 29. The operation lever 24 is further operated upward, and the spring bracket 25a coupled to the operation lever 24 is further raised, thereby allowing the spring bracket 25a to compress the coil spring 25b. The energy stored in 25b boosts the electrical connection between the movable contact 28 and the fixed contact 29, with the result that

Page 10 89101455.ptd 4484 5 8 V. Description of the invention (7) The vacuum ball 31 is closed. As explained above, the 'relative positional relationship between the insulated operating rod 26 and the operating lever 24' is changed according to the closing or opening operation of the vacuum ball 3 丨. Therefore, when the range of change is measured from the outside, the extent to which the coil spring 25b stores or releases energy can be known. 3A and 3B illustrate the air insulation distance of the space between an insulating frame and an insulating operating rod. FIG. 3A shows the ribs 23a of the insulating frame 23 and the ribs 26a of the insulating operating rod 26 as shown in the specific example 1. The air insulation distance of a configuration that alternately enters the gap formed therebetween is shown in FIG. 3B. The empty insulation distance of the space between the ribless insulation frame 3 and the rib 26a of the insulation operating rod 26a. The air insulation distance (A) indicated by the dashed line in FIG. 3A is longer than the air insulation distance ⑻ indicated by the dashed line in FIG. 3B. Since the height of the insulation operating rod 26 can be reduced to obtain the same predetermined air insulation distance, the height of the circuit breaker can be reduced. Furthermore, the height of the board that houses the circuit breaker can be reduced. I. System 2 Fig. 4 is a side view 5 / ί5β71 " The main part of Fig. 4 'and shows a contact pressure spring, which is provided on the inner side of the edge operating rod. Fig. 5A shows the state of contact when the vacuum ball is turned on, and the state of the contact pressure f when the vacuum ball is turned off. In Figs. 4, 5A and 5B, the reference drawing numbers of Figs. 2A, 2β, and 3AηB indicate the same or equivalent components, and the descriptions are omitted.

89101455.pid Page 11 448458 V. Description of the invention (8) The head pressure spring 25 is connected between the operating rod 24 and the insulated operating rod 26. In contrast, 'in the specific example 2', the contact pressure spring is disposed inside the insulated operating rod. Please refer to FIGS. 4, 5 A and 5 B ′ 4 6 indicate an insulated operating rod, which is extended along the insulating frame 2 3 ′, and is arranged between the operating rod 24 and the vacuum ball 31, and has a plurality of ribs 4 6 a. 'And it has a recessed portion 46b on one side of the operating lever 24. The fins 46a and the fins 23a of the insulating frame 23 are arranged so as to alternately enter a gap formed therebetween. One end of the rod is connected to the movable current shaft 27, and the other end is connected to the operating lever 24 via a contact pressure spring which will be described later. Reference number 45a indicates a spring holder, which is arranged in the recessed portion 46b, and is connected in parallel to the operating lever 24. 45b indicates a coil spring '4 5c, which is disposed between the spring holder 45a and the recessed portion 4 6b. The stud is embedded in the insulating operating rod 46 ′ and is marked with a stopper tab fixed to the stud 45c by the coil springs 45b and 45d so as to abut the spring bracket 45a when the vacuum ball 31 is turned on. The assemblies 45a to 45d constitute a contact pressure spring 45. Next 'will explain the operation. When the vacuum ball 31 turns on the row, the operating mechanism 22 operates the operating lever 24 in response to the opening command, causing the Associated Press to the shaker table 24 to be lowered. At this time, release the second disc; the amount of 'and the energy to press the spring bracket 45a down, resulting in the spring bracket 45a abutting against the stopper tab 45d' to apply a force to the stopper tab, thereby lowering the stud 4 5c . Therefore, the insulated operating rod 46 into which the stud 45c is embedded, the movable current shaft 27 connected to the vacuum ball 31 of the insulated operating rod 46, and the movable contact 28 connected to the movable current shaft 27 are lowered, and as a result, the vacuum is caused. The ball 31 opens.

89101455.ptd Page 12 44845 8 V. Description of the invention (9) In contrast, when the vacuum ball 31 closes the row, the operating mechanism 2 2 causes the operating lever 2 4 to operate in response to the closing command, causing the connection to the operating lever 2 The spring bracket 45a of 4 is raised. At this time, the insulated operating rod 46, the movable current shaft 27 of the vacuum ball 31 connected to the insulated operating rod 46, and the movable contact connected to the movable current shaft 27 are made via the coil spring 45b. 28 is raised, causing the movable contact 28 to be connected to the fixed contact 29. The operation lever 24 is further operated upward, and the spring bracket 4 5 a coupled to the operation lever 24 is further raised, thereby allowing the spring bracket 45a to compress the coil spring 45b. The energy stored in the coil spring 45b pressurizes the electrical connection between the movable contact 28 and the fixed contact 29, with the result that the vacuum ball 31 is turned off. According to this configuration, the ribs 23a of the insulating frame 23 and the ribs 46a of the insulating operating rod 46 are arranged so as to alternately enter the gap formed therebetween to extend the air insulation distance. Therefore, the height of the insulated operating rod 46 can be reduced so as to obtain the same predetermined air insulation distance. Since the contact pressure spring 45 is arranged in the recessed portion 46b formed inside the lower end of the insulated operating rod 46, it is possible to perform the insulated operation. The height difference between the rod 46 and the operating lever 24 is smaller than that in the specific example 1. Therefore, the height of the circuit breaker can be reduced. 7A is a side view showing a circuit breaker of a specific example 3 of the present invention, and the main part of FIG. 6 is shown, and a contact pressure spring is arranged, which is configured to be inside the rod. Fig. 7A shows the state of the contact pressure when the vacuum ball is on 'and Fig. 7B shows the parameters of the contact pressure spring when the vacuum ball is off. Figs. 6, 7A & 7B, and Figs. 1, 2A, The same numbers for 2B, 3A, and 3B indicate the same or equivalent components, and the description of the components is given.

448458 V. Description of the invention (ίο) Omitted. Specific example 3 differs from specific example 1 in the following points. In the specific example 1, the contact pressure spring 25 is connected between the operating lever 24 and the insulated operating lever 26. In contrast, 'in the specific example 3', the contact pressure spring is disposed inside the insulating operating rod. In the specific example 2, a recessed portion of an insulating operating rod in which a contact pressure spring is disposed is formed on one side of the operating rod. In contrast, in the specific example 3, the 'recessed portion is arranged on one side of the vacuum ball. Please refer to FIGS. 6, 7A, and 7B. 56 indicates an insulated operating rod, which is extended along the insulating frame 23 and is disposed between the operating rod 24 and the vacuum ball 31. It has a plurality of fins 56a and is in a vacuum. One side of the ball 31 has a recessed portion 56b. The fins 56a and the fins 23a of the insulating frame 23 are arranged so as to alternately enter a gap formed therebetween. One end of the rod is connected to the operating lever 24, and the other end is connected to the movable current shaft 27 via a contact pressure spring which will be described later. The reference figure 55a indicates a spring holder disposed in the recessed portion 56b, 55b indicates a coil spring, which is disposed between the spring holder 55a and the recessed portion 5 6b, and is connected in parallel to the movable current shaft 27, and 55c indicates a column Bolt, which is scattered to the insulating operating rod 56, and which is marked with a stop tab through the discs 55b, 55d, which is fixed to the stud bolt 55 (:, when the vacuum ball 3 i is opened, it abuts against the spring The bracket 55a. The components 55a to 55d constitute the contact pressure spring 55. Next, the operation will be described. When the vacuum ball 31 is to be opened, the operating mechanism 22 operates the operating lever 24 in response to the opening command, so that it is connected to the operating lever The insulated operating rod 5 6 of 2 4 and the stud 5 5 c described in the insulated operating rod 5 6 are lowered. At this time, the energy stored in the coil spring 5 5 b is released, and the energy will be reduced.

\\ 326 \ 2d- \ 89-04 \ 89101455.ptd Page 14 4484 5 8 V. Description of the invention (11) The spring bracket 55a is depressed ', which causes the stopper tab 55d to abut the spring bracket 55a' to apply The force is applied to the spring bracket, thereby lowering the spring bracket Ha. Therefore, the movable current axis 27 of the vacuum ball 3 1 connected to the spring holder 5 5 a and the movable contact 28 connected to the movable current axis 27 are lowered, so that the vacuum ball 31 is opened. In contrast, when the vacuum ball 31 is to be closed, the operating mechanism 22 responds to the closing command and causes the operating lever 24 to operate, causing the insulated operating rod 56 connected to the operating lever 24 to rise. At this time, the spring holder 55a, the movable current shaft 27 of the vacuum ball 31 connected to the spring holder 55a, and the movable contact 28 connected to the movable current shaft 27 are made through the coil spring 55b in contact with the insulating operating rod 56. Being raised 'causes the movable contact 28 to be connected to the fixed contact 29. The operating lever 24 is further worked upwards, and the insulated operating rod 56 connected to the operating lever 24 is further raised, thereby allowing the insulated operating rod 56 to compress the coil spring 55b. With the stored energy of the coil spring 55b, the electrical connection between the movable contact 28 and the fixed contact 29 is pressurized. As a result, the vacuum ball 31 is closed. In the configuration as described above, the contact pressure spring 55 is disposed on the end of the insulating operation rod 56, that is, on one side of the vacuum ball 31. When the circuit breaker is to be opened, the insulating operation rod 56 is made. Lower and bring the stopper 55d against the spring bracket 55a. The energy stored in the coil spring 55b is released, and a force is applied to the spring bracket 55a ', which is connected to the movable current shaft 27 of the spring bracket 55a, and the movable contact 28 connected to the movable current shaft 27, so that the movable head 2 8 lower. In contrast, in the configuration as in the specific example 2, the contact pressure spring is arranged at the lower end of the insulated operating rod 46, that is, one of the operating rods 24.

4484 5 8 V. Description of the invention (12) side, when the circuit breaker opens the row, apply a force to the insulated operating rod 46, a movable current shaft 27 connected to the vacuum ball 31 of the insulated operating rod 4 6 and connect to The movable contact 28 of the movable current shaft 27 lowers the movable contact 28. Therefore, "about the energy of the coil spring 55b necessary for lowering the movable contact 28" is compared with the case where the contact pressure spring 45 is disposed at the lower end of the insulation operating rod 46, and the contact pressure spring 55 is disposed at the insulation operation At the upper end of the rod 56, no energy is required to press down the insulated operating rod. Therefore, the energy of the coil 55b can be reduced to the above degree. According to this configuration, the ribs 23a of the insulating frame 23 and the ribs 56a of the insulating operating rod 56 are arranged so as to alternately enter a gap formed therebetween to extend the air insulation distance. Therefore, the height of the insulated operating rod 56 can be reduced to obtain the same predetermined air insulation distance. Since the contact pressure $ = is arranged adjacent to the recess 56b formed on the inner side of the upper end of the insulated operating rod 56, the insulated operating rod 56 and the operating lever can be 24 ° in the specific example 1. Therefore, the height of the circuit breaker can be reduced. The degree difference is less than that which should be configured by the present invention as described above, and thus obtains the following effects: a plurality of ribs are formed on the insulating frame relative to the insulating frame, and are arranged along the surface having the plurality of pieces, so that the insulating frame状 状 H # 月 之 '.Yi Yuan operation stick and hidden between the ribs :. Therefore, ‘: 可 = pieces alternately enter the shape. This’ can reduce the height of the insulation operating rod; distance. Due to the insulation distance 'and can reduce the age of the circuit breaker; have multiple fins in the same predetermined air ★ 4 w A degree 0 / formed on the side opposite to the fins of the insulation operating rod 89101455, ptd page 16 4484 5 8 V. Description of the invention (13) ----- The insulating frame U is arranged with I-edge operating rods having a plurality of ribs, so that the ribs of the insulating frame and the ribs of the insulating operating rod intersect into a shape. :: 2 gaps. Furthermore, a contact configured to be connected to an insulated operating rod == degrees is provided for obtaining the same predetermined air circuit breaker. When the lamp is turned off, the movable and fixed contacts can be pressurized. Due to the relative positional relationship of the contact force spring between the operating lever and the insulating operation, the insulating operating rod and the operating lever are changed in the closing or opening operation. Therefore, according to the surroundings of the switch device, you can know the storage of Panpu; the range of measurement change is due to the contact pressure of the chip, which is recessed on the inside of the Zanfan, so the end difference on the extremely insulated operating rod can be smaller. . Therefore, the height of the circuit breaker can be reduced. The problem of the cloth dry door Because the contact pressure spring is provided in the recessed portion on the inner side of the open insulation operating rod, the difference in the degree of arrangement between the ^ = formed is smaller. Therefore, it is possible to reduce the number of breaks-"dry and reduce the coil spring energy necessary to reduce the movable contacts." Quotation. Furthermore, the number of parts can be described as jg 1 2 3 4 5 5a Head pressure impeachment impeachment bracket

44845 8 V. Description of the invention (14) 5b Coil spring 5c Stud bolt 5d Stop tab 6 Insulated operating rod 7 Moving current shaft 8 Moving contact 9 Fixed contact 10 Fixed current shaft 11 Vacuum ball 13 Lower conductor 14 Flexible conductor 15 Upper conductor 21 Support member 22 Operating mechanism 23 Insulating frame 23a Rib 24 Operating lever 25 Contact pressure spring 25a Spring holder 25b Coil spring 25c Stud 25d Stop tab 26 Insulated operating rod 2 6a Rib

89101455.ptd Page 18 4484 5 8 V. Description of the invention (15) 27 Moving current shaft 28 Moving contact 29 Fixed contact 30 Fixed current shaft 31 Vacuum ball 33 Lower conductor 34 Flexible conductor 35 Upper conductor 45 Contact pressure spring 45a Stud 45b Coil spring 45c Stud 45d Stop tab 46 Insulated operating rod 46a Rib 46b Recessed portion 55 Contact pressure spring 55a Spring holder 55b Coil spring 5 5c Stud 55d Stop tab 56 Insulated operating rod 5 6a rib 56b recess

89101455.ptd Page 9 of 4484 5 8 Brief description of the formula 圊 1 is a side view showing a circuit breaker of a specific example 1 of the present invention, and Figures 2A and 2B show the main part of Figure 1 'of which Figure 2A is shown in a true The state of the contact pressure spring when the ball is opened, and FIG. 2B shows the state of the contact pressure spring when the vacuum f is closed; FIGS. 3A and 3B illustrate the air insulation distance of a space between the insulating frame and the insulating operating rod. Among them, FIG. 3A shows the ribs in the insulating frame ^ insulation = the ribs of the operating rod are arranged to alternately enter the air gap formed in a configuration between them, and FIG. 3B shows the insulation in a ribless The air insulation distance of the space between the frame and the finned insulated operating rod; Figure 4 is a side view showing a circuit breaker of a specific example 2 of the present invention. Figures 5A and 5B show the main part of Figure 4 and show a touch The head pressure is arranged inside an insulated operating rod, of which 圊 58 is shown in the state of the contact pressure spring when it is open, and Fig. 5B = ^ state of the contact pressure spring; Figure 6 is a side view when the ball is closed, showing the third specific example of the present invention-a kind of break Figures 7A and 7B show the main part of Figure 6 and the contact holders' and = are arranged on the inside of the-insulated operating rod, the state of the spring, the contact pressure spring when it is opened, and the state of the contact pressure spring; When Gu Shangchen is closed = is a side view, showing a kind of circuit breaker of the previous technique, which shows the main part of Fig. 8, where = the contact pressure of the spring and the energy of qR_ + the force of the ball opening head Impeachment: Figure 9 "Touch when vacuum ball is off

Claims (1)

448458 6. Scope of patent application 1. A circuit breaker, including:-an operating lever 'which is a farming type with a rotatable switch, and has a frame JL i JL, a phase t H 联 β-link, ~ activities to the operation lever Contacts, and a fixed contact for the movable contact; yi yi η * is arranged between the operating lever and the opening, and it has a plurality of ribs; and ν direct operation: ϋί 架 姑 其It is arranged on the supporting member ... along the insulation π # * "The insulation frame has a plurality of ribs formed on one side of the ribs on the insulation operating rod, and the rib gap of the insulation frame. The The ribs of the insulated operating rod are alternately entered and formed between the ribs. 2. A circuit breaker comprising: an operating lever which is rotatably supported on a supporting member; a switching device 'which has-coupled to The movable contact of the operating lever, and a fixed contact opposite to the movable contact; an insulated operating rod, which is arranged at θ 'between the operating lever and the switching device and has a plurality of ribs; " 'Insulation frame, its It is arranged on the supporting member to extend along the insulation rod. The insulation frame has a plurality of ribs, which are formed on the eye pair, one side of the ribs of the insulation operation rod, and one of the insulation frame. The ribs and the fins of the insulated operating rod alternately enter the gap formed in the rib; and a contact pressure spring connected to the insulated operating rod. 3 * As for the circuit breaker of the scope of patent application item 2, wherein the contact pressure 448458 6. Scope of patent application The spring is arranged between the operating lever and the insulated operating rod. 4, such as the circuit breaker of the second patent application range, wherein the contact pressure spring is arranged in a recess formed on the inner side of one of the insulated operating rods, and the inner side is on one side of the operating lever. 5. The circuit breaker of claim 2 in which the contact pressure spring is arranged in a recess formed on the inside of one of the insulated operating rods, and the inside is on one side of the switching device. 8910) 455.ptd Page 22