Frame type circuit breaker

Abstract

The utility model provides a frame-type circuit breaker which comprises a rotating shaft, the rotating shaft is connected with a main contact through a cantilever, the frame-type circuit breaker is further provided with an auxiliary contact and secondary terminal integrated module, the auxiliary contact and secondary terminal integrated module is provided with a module shell, a contact assembly and a secondary terminal assembly connected with the contact assembly are arranged in the module shell, and the contact assembly is connected with the secondary terminal assembly. The contact assembly comprises a static contact and a moving contact matched with the static contact, the moving contact is connected with the rotating shaft through a first elastic component, the secondary terminal assembly comprises a plurality of wiring terminals, and the contact assembly is connected with the wiring terminals through a conductive structure; the integrated structure of the secondary terminal assembly and the contact assembly is adopted, a microswitch mode is not needed to transmit signals, the size is small, miniaturization design is facilitated, and installation and use are convenient.

Description

Technical Field

[0001] This utility model relates to the field of electrical accessories, specifically to a frame-type circuit breaker. Background Technology

[0002] Auxiliary contacts are an important component of frame circuit breakers, serving functions such as indicating the circuit breaker's opening and closing status, participating in interlocking control, and providing remote signal transmission. They play a crucial role in ensuring the safe and reliable operation of power systems and in remote monitoring. Existing frame circuit breaker auxiliary contact structures use microswitches to transmit signals, resulting in large size and low space utilization; wiring to terminals is complex and unsightly; exposed terminals offer poor protection against electricity and dust, posing safety hazards. Utility Model Content

[0003] The purpose of this utility model is to solve at least one technical problem in the prior art and to provide a frame circuit breaker with an integrated structure of secondary terminal assembly and contact assembly.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] This application provides a frame-type circuit breaker, including an operating mechanism, a driving contact, and a main stationary contact disposed within a circuit breaker housing. The operating mechanism includes a rotating shaft connected to the driving contact via a cantilever. It also includes an integrated module for auxiliary contacts and secondary terminals, which is detachably mounted on the circuit breaker housing. The integrated module is housed within a module housing, which contains a contact assembly and a secondary terminal assembly connected to the contact assembly. The contact assembly includes a stationary contact and a moving contact that cooperates with the stationary contact. The moving contact is connected to the rotating shaft via a first elastic component. The secondary terminal assembly includes multiple terminals, which are connected to the terminals via a conductive structure. Rotation of the rotating shaft causes the driving contact to close or separate from the main stationary contact, while simultaneously causing the moving contact to move via the first elastic component, thus closing or separating the moving contact from the stationary contact.

[0006] Furthermore, the moving contact includes a push rod slidably disposed within the module housing, a moving contact piece fixedly connected to the push rod, and the push rod drives the moving contact piece to move and close or separate from the stationary contact; the push rod is connected to a second elastic component for resetting the push rod, and the push rod is provided with a driving part extending out of the module housing, the driving part being connected to the first elastic component.

[0007] Furthermore, the circuit breaker housing is provided with multiple auxiliary contacts and secondary terminal integrated modules. The push rods of the multiple auxiliary contacts and secondary terminal integrated modules are linked by a linkage shaft. The drive part of the push rod is provided with a connection hole. The linkage shaft passes through the connection hole of the multiple push rods and is hinged to the first elastic component.

[0008] Furthermore, the stationary contact includes a normally closed stationary contact and a normally open stationary contact, the normally closed stationary contact and the normally open stationary contact being disposed opposite to each other, and a gap existing between the normally open stationary contact and the normally closed stationary contact. A moving contact piece is disposed in the gap for closing or separating with the normally open stationary contact and the normally closed stationary contact; the second elastic member resets the push rod and causes the moving contact piece to make pressure contact with the normally closed stationary contact.

[0009] Furthermore, the normally open stationary contact is spaced below the normally closed stationary contact. The normally closed stationary contact includes a second stationary contact piece and a third stationary contact piece spaced apart from the second stationary contact piece. The normally open stationary contact includes a first stationary contact piece opposite to the second stationary contact piece and a fourth stationary contact piece opposite to the third stationary contact piece. A first gap is provided between the second and third stationary contact pieces, and a second gap is provided between the first and fourth stationary contact pieces. A connecting channel is provided between the first and second gaps, and a push rod is provided within the connecting channel. The push rod moves up and down within the connecting channel, causing the moving contact piece to separate or close from the normally closed and normally open stationary contacts. The plurality of terminal contact pieces include a first terminal contact piece, a second terminal contact piece, a third terminal contact piece, and a fourth terminal contact piece arranged sequentially.

[0010] The first stationary contact piece is connected to the first terminal contact piece, the second stationary contact piece is connected to the second terminal contact piece, the third stationary contact piece is connected to the third terminal contact piece, and the fourth stationary contact piece is connected to the fourth terminal contact piece. Thus, when the moving contact piece is closed with the normally closed stationary contact, the second terminal contact piece and the third terminal contact piece are energized; when the moving contact piece is closed with the normally open stationary contact, the first terminal contact piece and the fourth terminal contact piece are energized.

[0011] Furthermore, the normally open stationary contact includes a first stationary contact piece, and the normally closed stationary contact includes a second stationary contact piece. The first stationary contact piece and the second stationary contact piece are spaced apart and arranged opposite to each other. A movable contact piece is arranged between the first stationary contact piece and the second stationary contact piece. The push rod is fixedly connected to the movable contact piece, driving the movable contact piece to separate or close from the normally closed stationary contact and the normally open stationary contact. The plurality of terminal contact pieces include a first terminal contact piece, a second terminal contact piece, and a third terminal contact piece arranged sequentially.

[0012] The first stationary contact piece is connected to the first terminal contact piece, the second stationary contact piece is connected to the second terminal contact piece, and the moving contact piece is connected to the third terminal contact piece. Thus, when the moving contact piece and the second stationary contact piece are closed, the second terminal contact piece and the third terminal contact piece are energized; when the moving contact piece and the first stationary contact piece are closed, the first terminal contact piece and the third terminal contact piece are energized.

[0013] Furthermore, the normally closed stationary contact includes a second stationary contact piece and a third stationary contact piece spaced apart from the second stationary contact piece; the normally open stationary contact is spaced apart below the normally closed stationary contact, and the normally open stationary contact includes a first stationary contact piece opposite to the second stationary contact piece and a fourth stationary contact piece opposite to the third stationary contact piece; a first gap is provided between the second stationary contact piece and the third stationary contact piece, and a second gap is provided between the first stationary contact piece and the fourth stationary contact piece; a connecting channel is provided connecting the first gap and the second gap; a push rod is provided in the connecting channel; the push rod moves up and down in the connecting channel, causing the moving contact piece to separate or close from the normally closed stationary contact and the normally open stationary contact; the plurality of terminal contact pieces include a first terminal contact piece, a second terminal contact piece, and a third terminal contact piece arranged sequentially.

[0014] The first stationary contact piece is connected to the first terminal contact piece, the second stationary contact piece is connected to the second terminal contact piece, and the third and fourth stationary contact pieces are connected to the third terminal contact piece. Thus, when the moving contact piece is closed with the normally closed stationary contact, the second terminal contact piece and the third terminal contact piece are energized; when the moving contact piece is closed with the normally open stationary contact, the first terminal contact piece and the third terminal contact piece are energized.

[0015] Furthermore, the module housing is arranged in the form of a right triangle. The connection between the hypotenuse of the right triangle and the two straight sides forms an installation straight side that facilitates installation. Multiple operating surfaces are arranged in a stepped structure on the hypotenuse of the right triangle. The module housing is arranged in a stepped structure from top to bottom on the hypotenuse of the triangle. The multiple operating surfaces correspond one-to-one with the multiple first cavities. Wiring terminals are provided in the first cavities.

[0016] Furthermore, the terminal block includes a terminal contact piece and a spring piece connected to the terminal contact piece, the spring piece being used to clamp an external wire; the operating surface is provided with a wiring hole and an operating hole, the wiring hole being into which an external wire extends and connects to the spring piece; the operating hole is used to insert a tool to operate the spring piece.

[0017] Furthermore, the spring sheet includes an integrally formed snap-fit ​​portion and a bending portion. The snap-fit ​​portion has a hollow groove, and the bending portion is U-shaped. One end of the bending portion is connected to the snap-fit ​​portion, and the other end extends out of the hollow groove of the snap-fit ​​portion, so that the other end of the bending portion makes pressure contact with the inner wall of the hollow groove of the snap-fit ​​portion, thereby snapping the external wire between the hollow groove and the bending portion.

[0018] Furthermore, the module housing includes a first outer shell and a first cover plate. The outer shell and the cover plate are connected on one side to form a cavity, and a contact assembly and a secondary terminal assembly are disposed in the cavity.

[0019] Furthermore, the module housing includes a second outer shell, a second cover plate, and a third cover plate. The second cover plate is connected to one side of the outer shell, and the third cover plate is connected to the other side of the outer shell. The second cover plate, the outer shell, and the third cover plate are connected to form a cavity, and a contact assembly and a secondary terminal assembly are disposed in the cavity.

[0020] Furthermore, the conductive structure is a flexible connection.

[0021] Furthermore, a wire channel is provided inside the module housing, the wire channel is located between the plurality of terminals and the stationary contact, and a conductive structure is provided inside the wire channel.

[0022] Furthermore, the bottom of the module housing is provided with a first partition plate and a second partition plate. The first partition plate is fastened to the upper part of the second partition plate. The first partition plate and the second partition plate form a cavity, and a top rod is provided in the cavity. The first partition plate is provided with a third partition plate corresponding to the connecting channel formed by the first partition plate and the second partition plate. The second partition plate is provided with a fourth partition plate corresponding to the third partition plate.

[0023] The top rod is integrally formed with a first rod body, a stop plate, and a second rod body. The first rod body passes through the third gap and is fixedly connected to the movable contact piece. The movable contact piece is located on the upper part of the first partition plate, and the stop plate of the top rod is located on the lower part of the first partition plate. The long side dimension of the stop plate is larger than the dimension of the third gap, so that the third gap can limit the stop plate. The second rod body passes through the fourth gap and is hinged to the linkage shaft. The part of the second rod body that passes through the fourth gap is the driving part of the top rod. The second elastic component is sleeved on the second rod body.

[0024] The frame-type circuit breaker of this utility model adopts an integrated structure of secondary terminal assembly and contact assembly, forming an integrated module of auxiliary contact and secondary terminal. It does not require the use of micro switches to transmit signals, is compact in size, facilitates miniaturization design, and is easy to install and use. It can be detachably installed on the bracket as needed. At the same time, the rotating shaft drives the moving contact through the first elastic component, which has high adaptability and can also avoid damage to the integrated module of auxiliary contact and secondary terminal by rapid rotation of the rotating shaft.

[0025] Furthermore, this utility model employs a wire channel between the terminal contact piece and the stationary contact, with the wiring between the terminal contact piece and the stationary contact inside the housing, which is anti-electric and dustproof, aesthetically pleasing when connected to the wiring terminal, and has a simple structure.

[0026] Furthermore, this utility model utilizes different connections between the wiring terminals and the various components of the contact assembly to achieve different power-on and power-off effects, thereby meeting the diverse functional needs of customers. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the assembly structure of the bracket and secondary terminals of this utility model;

[0028] Figure 2 This is a schematic diagram of the closing of the moving contact piece and the normally closed stationary contact in Embodiment 1 of this utility model;

[0029] Figure 3 This is the utility model Figure 2 Enlarged view of a portion of the image;

[0030] Figure 4 This is a schematic diagram of the closing of the moving contact piece and the normally open stationary contact in Embodiment 1 of this utility model;

[0031] Figure 5 This is the utility model Figure 4 Enlarged view of a portion of the image;

[0032] Figure 6 This is a schematic diagram of the closing of the moving contact piece and the normally closed stationary contact in Embodiment 2 of this utility model;

[0033] Figure 7 This is the utility model Figure 6 Enlarged view of a portion of the image;

[0034] Figure 8 This is a schematic diagram of the closing of the moving contact piece and the normally open stationary contact in Embodiment 2 of this utility model;

[0035] Figure 9 This is the utility model Figure 8 Enlarged view of a portion of the image;

[0036] Figure 10This is a schematic diagram of the closing of the moving contact piece and the normally closed stationary contact in Embodiment 3 of this utility model;

[0037] Figure 11 This is the utility model Figure 10 Enlarged view of a portion of the image;

[0038] Figure 12 This is a schematic diagram of the auxiliary contact structure of Embodiment 4 of this utility model;

[0039] Figure 13 This is a schematic diagram of the auxiliary contact structure of Embodiment 5 of this utility model.

[0040] The reference numerals in the attached figures include:

[0041] Bracket 1;

[0042] Module housing 2; First outer shell 21; First cavity 211; Second cavity 212; First partition plate 213; Third partition 2131; Second partition plate 214; Fourth partition 2141; Limiting plate 215; Straight edge 217; First cover plate 22; Second cover plate 23; Third cover plate 24; Wire channel 25; Wiring hole 26; Operating hole 27; Second outer shell 28; Operating surface 29;

[0043] 3. Auxiliary contact and secondary terminal integrated module; 31. Contact assembly; 32. Secondary terminal assembly;

[0044] Stationary contact 4; normally open stationary contact 41; normally closed stationary contact 42; first stationary contact piece 421; second stationary contact piece 422; third stationary contact piece 423; fourth stationary contact piece 424; stationary contact point 425; first gap 43; second gap 44;

[0045] Moving contact 5; Moving contact piece 51; First moving contact piece 511; Second moving contact piece 512; Moving contact point 513; Push rod 52; First rod body 521; Stop plate 522; Second rod body 523; Hinge part 5231; Connecting hole 5232; Second elastic component 53; Linkage shaft 54;

[0046] Rotating shaft 6; First elastic component 61; Connecting ring 612; Cantilever 62; Operating part 621; Connecting part 622;

[0047] Terminal block 7; terminal contact piece 71; first terminal contact piece 711; first flat plate portion 7111; second flat plate portion 7112; third flat plate portion 7113; second terminal contact piece 712; third terminal contact piece 713; fourth terminal contact piece 714; spring piece 72; snap-fit ​​portion 721; bending portion 722; conductive structure 8. Detailed Implementation

[0048] The specific embodiments of this utility model are further described below with reference to the accompanying drawings. The scope of protection of this utility model is not limited to the description of the following embodiments.

[0049] like Figure 1 , 2 As shown, this embodiment provides a frame-type circuit breaker. The frame-type circuit breaker includes an operating mechanism, active contacts (not shown), and main stationary contacts (not shown) disposed within the circuit breaker housing. The operating mechanism includes a rotating shaft 6 with multiple cantilever arms 62 mounted on it. The cantilever arms 62 are connected to the active contacts. The rotation of the rotating shaft 6 drives the active contacts to rotate and close or open with the main stationary contacts. The frame-type circuit breaker also includes an overload protection mechanism, an undervoltage protection mechanism, etc. The operating mechanism further includes an energy storage mechanism and a linkage mechanism. Energy is first stored in the energy storage mechanism of the operating mechanism, and then the release of energy from the energy storage mechanism drives the linkage mechanism to rotate the rotating shaft 6, thereby causing the active contacts to close. This is prior art in this field.

[0050] An improvement of the frame-type circuit breaker in this embodiment is that it also includes an integrated module 3 for auxiliary contacts and secondary terminals. The integrated module 3 for auxiliary contacts and secondary terminals is detachably mounted on the circuit breaker housing, which includes a bracket 1. The integrated module 3 for auxiliary contacts and secondary terminals is detachably mounted on the bracket 1.

[0051] like Figure 12 As shown, the auxiliary contact and secondary terminal integrated module 3 includes a module housing 2. The module housing 2 is provided with a contact assembly 31 and a secondary terminal assembly 32 connected to the contact assembly 31. The contact assembly 31 includes a stationary contact 4 and a moving contact 5 that cooperates with the stationary contact 4. The moving contact 5 is connected to the rotating shaft 6 through a first elastic member 61. The secondary terminal assembly 32 includes multiple wiring terminals 7 for connecting external wires. The contact assembly 31 and the wiring terminals 7 are connected through a conductive structure 8. When the rotating shaft 6 rotates and drives the active contact to close or separate from the main stationary contact, it simultaneously applies a pulling force to the first elastic member 61. The first elastic member 61 drives the moving contact 5 to move, causing the moving contact 5 to close or separate from the stationary contact 4, thereby realizing the on / off state of the wiring terminal 7. This is used to indicate the opening and closing status of the circuit breaker, participate in interlocking control, and provide remote signal transmission, among other functions.

[0052] The frame-type circuit breaker in this embodiment adopts an integrated structure of secondary terminal assembly 32 and contact assembly 31, forming an integrated module 3 of auxiliary contact and secondary terminal. It does not require the use of microswitches to transmit signals, is compact in size, facilitates miniaturization design, and is easy to install and use. It can be detachably installed on the bracket 1 as needed. At the same time, the rotating shaft 6 drives the moving contact 5 through the first elastic component 61, which has high adaptability and can also avoid damage to the integrated module 3 of auxiliary contact and secondary terminal by rapid rotation of the rotating shaft 6.

[0053] like Figure 2 As shown, the moving contact 5 includes a push rod 52 slidably disposed within the module housing 2. A moving contact piece 51 is fixedly connected to the push rod 52. The push rod 52 drives the moving contact piece 51 to move up and down to close or separate from the stationary contact 4. The push rod 52 is connected to a second elastic member 53 for resetting the push rod 52. The push rod 52 also has a driving part extending out of the module housing 2, which is connected to the first elastic member 61.

[0054] Preferably, the bracket 1 is equipped with a multi-auxiliary contact and secondary terminal integrated module 3. Figure 1 The example provides six auxiliary contact and secondary terminal integrated modules 3 arranged side by side. Preferably, the push rods 52 of the multiple auxiliary contact and secondary terminal integrated modules 3 are linked by a linkage shaft 54. The drive part of the push rod 52 is provided with a connection hole 5232. The linkage shaft 54 ​​passes through the connection hole 5232 of the multiple push rods 52 and is connected to the first elastic member 61.

[0055] Preferably, the conductive structure 8 is a flexible connection, typically made of wire or braided wire. Of course, the conductive structure 8 can also be a rigid conductor.

[0056] like Figure 12 As shown, in this embodiment, the module housing 2 is provided with a plurality of first cavities 211 in a stepped manner from top to bottom. The first cavity 211 is provided with wiring terminals 7, and the wiring terminals 7 include a plurality of terminal contact pieces 71. The lower part of the module housing 2 is provided with a second cavity 212, and the second cavity 212 is provided with a contact assembly 31. The contact assembly 31 includes a stationary contact 4 and a moving contact 5 that cooperates with the stationary contact 4.

[0057] like Figures 1 to 13As shown, the stationary contact 4 includes a normally open stationary contact 41 and a normally closed stationary contact 42. Both the normally closed stationary contact 42 and the normally open stationary contact 41 are plate-shaped and fixedly connected to the second cavity 212. That is, the normally closed stationary contact 42 and the normally open stationary contact 41 are fixedly disposed inside the second cavity 212. The normally closed stationary contact 42 and the normally open stationary contact 41 are spaced apart and opposite to each other. The normally closed stationary contact 42 is disposed opposite to the normally open stationary contact 41 on the upper side. There is a gap between the normally open stationary contact 41 and the normally closed stationary contact 42. A moving contact piece 51 is disposed in the gap for closing or separating with the normally open stationary contact 41 and the normally closed stationary contact 42.

[0058] The moving contact 5 includes a push rod 52, on which a moving contact piece 51 is fixedly connected. The push rod 52 drives the moving contact piece 51 to move up and down, so that the moving contact piece 51 closes or separates from the normally open stationary contact 41 and the normally closed stationary contact 42.

[0059] Preferably, a second elastic component 53 is connected to the lower part of the push rod 52 to reset the push rod 52, thereby closing the moving contact piece 51 with the normally closed stationary contact 42.

[0060] The first embodiment provided in this application, such as Figures 2 to 5As shown, the normally closed stationary contact 42 includes a second stationary contact piece 422 and a third stationary contact piece 423 spaced apart from the second stationary contact piece 422; the normally open stationary contact 41 is spaced apart below the normally closed stationary contact 42, and the normally open stationary contact 41 includes a first stationary contact piece 421 opposite to the second stationary contact piece 422 and a fourth stationary contact piece 424 opposite to the third stationary contact piece 423; a first gap is provided between the second stationary contact piece 422 and the third stationary contact piece 423, and a second gap is provided between the first stationary contact piece 421 and the fourth stationary contact piece 424. A connecting channel is provided between the first gap and the second gap, and a push rod 52 is provided in the connecting channel. The push rod 52 moves up and down in the connecting channel, driving the moving contact piece 51 to contact the normally closed stationary contact 422. The closed stationary contact 42 and the normally open stationary contact 41 are separated or closed; the plurality of terminal contact pieces 71 include a first terminal contact piece 711, a second terminal contact piece 712, a third terminal contact piece 713, and a fourth terminal contact piece 714 arranged sequentially; the first stationary contact piece 421 is connected to the first terminal contact piece 711, the second stationary contact piece 422 is connected to the second terminal contact piece 712, the third stationary contact piece 423 is connected to the third terminal contact piece 713, and the fourth stationary contact piece 424 is connected to the fourth terminal contact piece 714, so that when the moving contact piece 51 is closed with the normally closed stationary contact 42, the second terminal contact piece 712 and the third terminal contact piece 713 are energized; when the moving contact piece 51 is closed with the normally open stationary contact 41, the first terminal contact piece 711 and the fourth terminal contact piece 714 are energized.

[0061] The second embodiment provided in this application, such as Figures 6 to 9 As shown, the normally closed stationary contact 42 includes a second stationary contact piece 422, and the normally open stationary contact 41 includes a first stationary contact piece 421. The first stationary contact piece and the second stationary contact piece are spaced apart and arranged opposite to each other. The plurality of terminal contact pieces 71 include a first terminal contact piece 711, a second terminal contact piece 712, and a third terminal contact piece 713 arranged sequentially. The first stationary contact piece 421 is connected to the first terminal contact piece 711, the second stationary contact piece 422 is connected to the second terminal contact piece 712, and the moving contact piece 51 is connected to the third terminal contact piece 713. Thus, when the moving contact piece 51 is closed with the second stationary contact piece 422, the second terminal contact piece 712 and the third terminal contact piece 713 are energized. When the moving contact piece 51 is closed with the first stationary contact piece 421, the first terminal contact piece 711 and the third terminal contact piece 713 are energized.

[0062] The third embodiment provided in this application, such as Figure 10 , 11As shown, the normally closed stationary contact 42 includes a second stationary contact piece 422 and a third stationary contact piece 423 spaced apart from the second stationary contact piece 422; the normally open stationary contact 41 is spaced below the normally closed stationary contact 42, and the normally open stationary contact 41 includes a first stationary contact piece 421 opposite to the second stationary contact piece 422 and a fourth stationary contact piece 424 opposite to the third stationary contact piece 423; a first gap is provided between the second stationary contact piece 422 and the third stationary contact piece 423, and a second gap is provided between the first stationary contact piece 421 and the fourth stationary contact piece 424. A connecting channel is provided between the first gap and the second gap, and the push rod 52 is provided in the connecting channel, and the push rod 52 moves up and down in the connecting channel. This causes the moving contact 51 to separate or close from the normally closed stationary contact 42 and the normally open stationary contact 41. The plurality of terminal contact pieces 71 include a first terminal contact piece 711, a second terminal contact piece 712, and a third terminal contact piece 713 arranged sequentially. The first stationary contact piece 421 is connected to the first terminal contact piece 711, the second stationary contact piece 422 is connected to the second terminal contact piece 712, and the third stationary contact piece 423 and the fourth stationary contact piece 424 are connected to the third terminal contact piece 713. Thus, when the moving contact 51 is closed with the normally closed stationary contact 42, the second terminal contact piece 712 and the third terminal contact piece 713 are energized. When the moving contact 51 is closed with the normally open stationary contact 41, the first terminal contact piece 711 and the third terminal contact piece 713 are energized.

[0063] In summary, as described in Embodiments 1, 2, and 3, this utility model utilizes different connections between the terminal block 7 and the various components of the contact assembly 31 to achieve different power-on and power-off effects, thus meeting the diverse functional needs of customers. Obviously, as needed, only one stationary contact can be provided, or multiple stationary contacts can be provided; normally open stationary contacts and / or normally closed stationary contacts can be used. The terminal block 7 can be connected to either the stationary contact or the moving contact.

[0064] like Figure 3 , 12As shown, the moving contact 5 includes a push rod 52, on which a moving contact piece 51 is fixedly connected. A second elastic component 53 is provided at the lower part of the push rod 52. The moving contact piece 51 is sheet-shaped with a rectangular cross-section. A first through hole is provided on the push rod 52, through which the moving contact piece is fixedly connected to the push rod 52. Preferably, moving contacts 513 are provided on both sides of the moving contact piece 51 facing the normally open stationary contact 41 and the normally closed stationary contact 42. Stationary contacts 425 are provided on the normally open stationary contact 41 and the normally closed stationary contact 422 corresponding to the moving contacts 513. The closing or separating of the stationary contacts 425 and the moving contacts 513 realizes the closing or separating of the moving contact piece 51 from the normally open stationary contact 41 and the normally closed stationary contact 42. Of course, it is also possible to determine whether to provide a moving contact 513 on the moving contact piece 51, depending on the situation. For example, as described in Embodiment 2, the second moving contact piece 512 of the moving contact piece 51 is not provided with a moving contact 513. The way in which the push rod 52 moves up and down in the connection channel to drive the moving contact piece 51 to move can be adapted to Embodiments 1, 2, and 3 and similar stationary contact settings, so that the wiring terminal can achieve different power on / off effects to meet the diverse functional needs of customers.

[0065] like Figure 12The module housing 2 has a first partition plate 213 and a second partition plate 214 at its bottom. The first partition plate 213 is fastened to the upper part of the second partition plate 214. The first partition plate 213 and the second partition plate 214 form a cavity, and a top rod 52 is provided in the cavity. The first partition plate 213 has a third partition 2131 corresponding to the connecting channel formed by the first and second partitions, and the second partition plate 214 has a fourth partition 2141 corresponding to the third partition 2131. The top rod 52 is integrally formed with a first rod body 521, a stop plate 522, and a second rod body 523. The first rod body 521 passes through the... The third gap 2131, the first rod 521 is fixedly connected to the movable contact piece 51; the movable contact piece 51 is disposed on the upper part of the first partition plate 213, the stop plate 522 of the push rod 52 is disposed on the lower part of the first partition plate 213, the long side dimension of the stop plate 522 is larger than the dimension of the third gap 2131, so that the third gap 2131 can limit the stop plate 522; the second rod 523 passes through the fourth gap 2141 and is hinged to the linkage shaft 54, the part of the second rod 523 passing through the fourth gap 2141 is the driving part of the push rod 52, and the second elastic member 53 is sleeved on the second rod. 523 is located on the first partition plate 213 and the second partition plate 214, and is disposed within the cavity formed by the first partition plate 213 and the second partition plate 214. The diameter of the second elastic member 53 is smaller than the size of the diagonal side of the stop plate 522, and the outer diameter of the second elastic member 53 is larger than the size of the fourth gap 2141. This allows the second elastic member 53 to apply force to the second partition plates 214 on both sides of the fourth gap 2141, so that one end of the second elastic member 53 is in pressure contact with the second partition plate 214, and the other end of the second elastic member 53 is in pressure contact with the stop plate 522. Two corresponding limiting plates 215 are provided on the side of the second partition plate 214 facing the stop plate 522. The two limiting plates 215 are symmetrically arranged with respect to the fourth gap 2141. The distance between the two limiting plates 215 is not less than the outer diameter of the second elastic member 53. The second elastic member 53 is disposed between the two limiting plates 215. The distance between the two limiting plates 215 is less than the dimension of the long side of the stop plate 522. The distance between the limiting plate 215 and the first partition plate 213 is not less than the vertical distance between the normally closed stationary contact 42 and the normally open stationary contact 41. Thus, when the moving contact piece 51 is closed with the normally open stationary contact 41, the limiting plate 215 limits the stop plate 522, thereby protecting the moving contact piece 51.

[0066] Preferably, the first rod 521 has a square cross-section, the second rod 523 has a circular cross-section, and the stop plate 522 has a rectangular cross-section.

[0067] Preferably, the second rod body 523 has a hinge portion 5231 at its end, the hinge portion 5231 has a connecting hole 5232, the linkage shaft 54 ​​passes through the connecting hole 5232, and the bent portion 722 of the linkage shaft 54 ​​limits the connection hole 5232.

[0068] Preferably, both the first elastic component 61 and the second elastic component 53 are springs, and the outer diameter of the first elastic component 61 is larger than the outer diameter of the second elastic component 53.

[0069] like Figure 12 As shown in Figure 13, the module housing 2 is arranged in a right-angled triangle. The connection between the hypotenuse and the two straight sides of the right-angled triangle forms an installation straight side 217 for easy installation. Multiple operating surfaces 29 are arranged in a stepped structure on the hypotenuse of the right-angled triangle. The module housing 2 has multiple first cavities 211 arranged in a stepped structure from top to bottom corresponding to the hypotenuse of the triangle. Each operating surface 29 corresponds to one of the multiple first cavities 211. A wiring terminal 7 is provided inside each of the first cavities 211. The wiring terminal 7 includes a terminal contact piece 71 and a spring piece 72 fixedly connected to the terminal contact piece 71. The spring piece 72 is used to connect to an external wire. The contact piece 71 is preferably made of copper and has a sheet-like structure. A wire channel 25 is provided inside the module housing 2. The terminal contact piece 71 is connected to the normally open stationary contact 41 and the normally closed stationary contact 42 through the wire channel 25. A conductive structure 8 is provided inside the wire channel 25. One end of the conductive structure 8 is connected to the terminal contact piece 71, and the other end is connected to the normally closed stationary contact 42, the normally open stationary contact 41, or the moving contact piece 51. This ensures that the wiring between the terminal contact piece 71 and the normally closed stationary contact 42 and the normally open stationary contact 41 is inside the module housing 2, which is anti-electric and dustproof, provides better safety protection, and makes the wiring with the terminal neat and simple.

[0070] The terminal contact piece 71 is C-shaped and integrally formed with a first flat plate portion 7111, a second flat plate portion 7112 connected to the first flat plate portion 7111, and a third flat plate portion 7113 connected to the second flat plate portion 7112. The first flat plate portion 7111 is horizontally arranged, the second flat plate portion 7112 is vertically connected to the first flat plate portion 7111, and the third flat plate portion 7113 is in the same direction as the first flat plate portion 7111 and forms an acute angle with the extension line of the second flat plate portion 7112. A spring sheet 72 is fixedly connected to the third flat plate portion 7113, and the first flat plate portion 7111 is connected to the conductive structure 8.

[0071] Preferably, the spring sheet 72 fixedly connected to the terminal contact piece 71 includes an integrally formed snap-fit ​​portion 721 and a bending portion 722. The snap-fit ​​portion 721 has a hollow groove, and the bending portion 722 is U-shaped. One end of the bending portion 722 is connected to the snap-fit ​​portion 721, and the other end extends out of the hollow groove of the snap-fit ​​portion 721, so that the other end of the bending portion 722 makes pressure contact with the inner wall of the hollow groove of the snap-fit ​​portion 721, thereby snapping the external wire between the hollow groove and the other end of the bending portion 722. Of course, a screw fastening method can also be used to connect the external wire.

[0072] The module housing 2 is provided with an operation hole 27 and a wiring hole 26 corresponding to the operation surface 29 of the spring plate 72. The wiring hole 26 is used for inserting external wires to connect with the spring plate 72; the operation hole 27 is used for inserting tools to operate the spring plate 72.

[0073] The fourth embodiment provided in this application, such as Figure 12 As shown, the module housing 2 includes a first outer shell 21 and a first cover plate 22, and the first outer shell 21 and the first cover plate 22 are assembled to form the module housing 2.

[0074] The fifth embodiment provided in this application, such as Figure 13 As shown, the module housing 2 includes a second outer shell 28, a second cover plate 23 and a third cover plate 24. The second cover plate 23 is connected to one side of the second outer shell 28, and the third cover plate 24 is connected to the other side of the second outer shell 28. The second cover plate 23, the second outer shell and the third cover plate 24 are assembled to form the module housing 2.

[0075] like Figure 2 As shown, the cantilever 62 is provided with a shaft hole, and the outer diameter of the rotating shaft 6 is matched with the diameter of the shaft hole. The rotating shaft 6 is inserted into the shaft hole of the cantilever 62, so that the rotating shaft 6 and the cantilever 62 are detachably and fixedly connected. The cantilever 62 includes an operating part 621 and a connecting part 622 disposed off-center from the center of the rotating shaft 6. The connecting part 622 is used to hinge with the first elastic member 61. The operating part 621 is used to connect with the active contact of the frame circuit breaker. The rotating shaft 6 drives the cantilever 62 to rotate, thereby generating a tensile force on the first elastic member 61.

[0076] A connecting ring 612 is provided at the end of the first elastic component 61 away from the rotating shaft 6. The connecting ring 612 is hinged to the linkage shaft 54. The linkage shaft 54 ​​is hinged to the push rod 52. A moving contact piece 51 is fixedly connected to the push rod 52. A second elastic component 53 is provided at the lower part of the push rod 52. When the rotating shaft 6 does not apply a rotational force to the first elastic component 61, the second elastic component 53 applies an upward force to the push rod 52. The moving contact 51 closes with the normally closed stationary contact 42, that is, the moving contact piece 51 and the normally closed stationary contact 42 are in pressure contact. The second stationary contact piece 422 and the third stationary contact piece 422... When 423 is energized, the corresponding second terminal contact 712 and third terminal contact 713 are energized; when the rotating shaft 6 rotates and the pulling force applied to the first elastic member 61 is greater than the force exerted by the second elastic member 53 on the push rod 52 in the opposite direction, the moving contact 51 separates from the normally closed stationary contact 42, and then the moving contact 51 moves toward the normally open stationary contact 41 until the moving contact 51 closes with the normally open stationary contact 41, and the moving contact 51 closes with the first stationary contact 421 and the fourth stationary contact 424 and is energized, and the corresponding first terminal contact 711 and fourth terminal contact 714 are energized.

[0077] It should be noted that in the description of this utility model, the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used during use. They are only for ease of description and do not indicate that the device or component referred to must have a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating relative importance.

[0078] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.

Claims

1. A frame-type circuit breaker, comprising an operating mechanism, a driving contact, and a main stationary contact disposed within a circuit breaker housing, wherein the operating mechanism includes a rotating shaft (6), the rotating shaft (6) being connected to the driving contact via a cantilever (62), characterized in that, An auxiliary contact and secondary terminal integrated module (3) is also provided. The auxiliary contact and secondary terminal integrated module (3) is detachably installed on the circuit breaker housing. The auxiliary contact and secondary terminal integrated module (3) is provided with a module housing (2). The module housing (2) is provided with a contact assembly (31) and a secondary terminal assembly (32) connected to the contact assembly (31). The contact assembly (31) includes a stationary contact (4) and a moving contact (5) that cooperates with the stationary contact (4). The moving contact (5) is connected to the rotating shaft (6) through a first elastic component (61). The secondary terminal assembly (32) includes multiple wiring terminals (7). The contact assembly (31) is connected to the wiring terminals (7) through a conductive structure (8). When the rotating shaft (6) rotates, it drives the active contact to close or separate from the main stationary contact. At the same time, it drives the moving contact (5) to move through the first elastic component (61), so that the moving contact (5) closes or separates from the stationary contact (4).

2. The frame-type circuit breaker according to claim 1, characterized in that: The moving contact (5) includes a push rod (52) slidably disposed in the module housing (2), a moving contact piece (51) is fixedly connected to the push rod (52), the push rod (52) drives the moving contact piece (51) to move and close or separate from the stationary contact (4); the push rod (52) is connected to a second elastic component (53) for resetting the push rod (52), and the push rod (52) is provided with a driving part extending out of the module housing (2), the driving part being connected to the first elastic component (61).

3. The frame-type circuit breaker according to claim 2, characterized in that: The circuit breaker housing is provided with multiple auxiliary contacts and secondary terminal integrated modules. The top rods (52) of the multiple auxiliary contacts and secondary terminal integrated modules (3) are linked by a linkage shaft (54). The drive part of the top rod (52) is provided with a connection hole (5232). The linkage shaft (54) passes through the connection hole (5232) of the multiple top rods (52) and is hinged to the first elastic component (61).

4. The frame-type circuit breaker according to claim 2, characterized in that: The stationary contact (4) includes a normally closed stationary contact (42) and a normally open stationary contact (41). The normally closed stationary contact (42) and the normally open stationary contact (41) are arranged opposite to each other. There is a gap between the normally open stationary contact (41) and the normally closed stationary contact (42). A moving contact piece (51) is provided in the gap for closing or separating with the normally open stationary contact (41) and the normally closed stationary contact (42). The second elastic member (53) resets the push rod (52) and makes the moving contact piece (51) pressurize the normally closed stationary contact (42).

5. The frame-type circuit breaker according to claim 4, characterized in that: The normally open stationary contact (41) is spaced apart below the normally closed stationary contact (42). The normally closed stationary contact (42) includes a second stationary contact piece (422) and a third stationary contact piece (423) spaced apart from the second stationary contact piece (422). The normally open stationary contact (41) includes a first stationary contact piece (421) opposite to the second stationary contact piece (422) and a fourth stationary contact piece (424) opposite to the third stationary contact piece (423). 22) A first gap is provided between the first stationary contact piece (423) and the third stationary contact piece (423), and a second gap is provided between the first stationary contact piece (421) and the fourth stationary contact piece (424). A connecting channel is provided between the first gap and the second gap. The push rod (52) is provided in the connecting channel. The push rod (52) moves up and down in the connecting channel, causing the moving contact piece (51) to separate or close from the normally closed stationary contact (42) and the normally open stationary contact (41). The terminal block (7) includes multiple terminal contact pieces (71), which include a first terminal contact piece (711), a second terminal contact piece (712), a third terminal contact piece (713), and a fourth terminal contact piece (714) arranged sequentially. The first stationary contact piece (421) is connected to the first terminal contact piece (711), the second stationary contact piece (422) is connected to the second terminal contact piece (712), the third stationary contact piece (423) is connected to the third terminal contact piece (713), and the fourth stationary contact piece (424) is connected to the fourth terminal contact piece (714). Thus, when the moving contact piece (51) is closed with the normally closed stationary contact (42), the second terminal contact piece (712) and the third terminal contact piece (713) are energized; when the moving contact piece (51) is closed with the normally open stationary contact (41), the first terminal contact piece (711) and the fourth terminal contact piece (714) are energized.

6. The frame-type circuit breaker according to claim 4, characterized in that: The normally open stationary contact (41) includes a first stationary contact piece (421), and the normally closed stationary contact (42) includes a second stationary contact piece (422). The first stationary contact piece and the second stationary contact piece are spaced apart and arranged opposite to each other. A movable contact piece (51) is arranged between the first stationary contact piece (421) and the second stationary contact piece (422). The push rod is fixedly connected to the movable contact piece, driving the movable contact piece (51) to separate or close from the normally closed stationary contact (42) and the normally open stationary contact (41). The terminal block (7) includes multiple terminal contact pieces (71), and the multiple terminal contact pieces (71) include a first terminal contact piece (711), a second terminal contact piece (712), and a third terminal contact piece (713) arranged in sequence. The first stationary contact piece (421) is connected to the first terminal contact piece (711), the second stationary contact piece (422) is connected to the second terminal contact piece (712), and the moving contact piece (51) is connected to the third terminal contact piece (713). Thus, when the moving contact piece (51) and the second stationary contact piece (422) are closed, the second terminal contact piece (712) and the third terminal contact piece (713) are energized; when the moving contact piece (51) and the first stationary contact piece (421) are closed, the first terminal contact piece (711) and the third terminal contact piece (713) are energized.

7. The frame-type circuit breaker according to claim 4, characterized in that: The normally closed stationary contact (42) includes a second stationary contact piece (422) and a third stationary contact piece (423) spaced apart from the second stationary contact piece (422); the normally open stationary contact (41) is spaced apart below the normally closed stationary contact (42), and the normally open stationary contact (41) includes a first stationary contact piece (421) opposite to the second stationary contact piece (422) and a fourth stationary contact piece (424) opposite to the third stationary contact piece (423); a first gap is provided between the second stationary contact piece (422) and the third stationary contact piece (423), and the first stationary contact piece (421)... A second gap is provided between the first gap and the fourth stationary contact piece (424). A connecting channel is provided between the first gap and the second gap. The top rod (52) is provided in the connecting channel. The top rod (52) moves up and down in the connecting channel, causing the moving contact piece (51) to separate or close from the normally closed stationary contact (42) and the normally open stationary contact (41). The terminal block (7) includes multiple terminal contact pieces (71). The multiple terminal contact pieces (71) include a first terminal contact piece (711), a second terminal contact piece (712), and a third terminal contact piece (713) arranged in sequence. The first stationary contact piece (421) is connected to the first terminal contact piece (711), the second stationary contact piece (422) is connected to the second terminal contact piece (712), and the third stationary contact piece (423) and the fourth stationary contact piece (424) are connected to the third terminal contact piece (713). Thus, when the moving contact piece (51) is closed with the normally closed stationary contact (42), the second terminal contact piece (712) and the third terminal contact piece (713) are energized; when the moving contact piece (51) is closed with the normally open stationary contact (41), the first terminal contact piece (711) and the third terminal contact piece (713) are energized.

8. The frame-type circuit breaker according to claim 1, characterized in that: The module housing (2) is arranged in the form of a right triangle. The connection between the hypotenuse of the right triangle and the two straight sides forms an installation straight side (217) for easy installation. Multiple operating surfaces (29) are arranged in a stepped structure on the hypotenuse of the right triangle. Multiple first cavities (211) are arranged in a stepped structure from top to bottom on the module housing (2) corresponding to the hypotenuse of the triangle. The multiple operating surfaces (29) correspond one-to-one with the multiple first cavities (211). A wiring terminal (7) is provided in the first cavity (211).

9. The frame-type circuit breaker according to claim 8, characterized in that: The terminal block (7) includes a terminal contact piece (71) and a spring piece (72) connected to the terminal contact piece (71). The spring piece (72) is used to clamp external wires. The operating surface (29) is provided with a wiring hole (26) and an operating hole (27). The wiring hole (26) is used to insert an external wire and connect to the spring piece (72). The operating hole (27) is used to insert a tool to operate the spring piece (72).

10. The frame-type circuit breaker according to claim 9, characterized in that: The spring sheet (72) includes an integrally formed snap-fit ​​portion (721) and a bending portion (722). The snap-fit ​​portion (721) has a hollow groove, and the bending portion (722) is U-shaped. One end of the bending portion (722) is connected to the snap-fit ​​portion (721), and the other end extends out of the hollow groove of the snap-fit ​​portion (721), so that the other end of the bending portion (722) makes pressure contact with the inner wall of the hollow groove of the snap-fit ​​portion (721), thereby snapping the external wire between the hollow groove and the bending portion (722).

11. The frame-type circuit breaker according to any one of claims 1-10, characterized in that: The module housing (2) includes a first outer shell (21) and a first cover plate (22). The outer shell and the cover plate are connected to form a cavity. A contact assembly (31) and a secondary terminal assembly (32) are disposed in the cavity.

12. The frame-type circuit breaker according to any one of claims 1-10, characterized in that: The module housing (2) includes a second outer shell (28), a second cover plate (23) and a third cover plate (24). The second cover plate (23) is connected to one side of the outer shell, and the third cover plate (24) is connected to the other side of the outer shell. The second cover plate (23), the outer shell and the third cover plate (24) are connected to form a cavity. A contact assembly (31) and a secondary terminal assembly (32) are provided in the cavity.

13. The frame-type circuit breaker according to claim 1, characterized in that: The conductive structure (8) is a flexible connection.

14. The frame-type circuit breaker according to claim 1 or 2, characterized in that: The module housing (2) is provided with a wire channel (25), which is located between the plurality of terminals (7) and the stationary contact (4). The wire channel (25) is provided with a conductive structure (8).

15. The frame-type circuit breaker according to claim 5, characterized in that: The bottom of the module housing (2) is provided with a first partition plate (213) and a second partition plate (214). The first partition plate (213) is fastened to the upper part of the second partition plate (214). The first partition plate (213) and the second partition plate (214) form a cavity, and a top rod (52) is provided in the cavity. The first partition plate (213) is provided with a third partition (2131) corresponding to the connecting channel formed by the first partition and the second partition. The second partition plate (214) is provided with a fourth partition (2141) corresponding to the third partition (2131). The top rod (52) is integrally formed with a first rod body (521), a stop plate (522), and a second rod body (523); the first rod body (521) passes through the third partition (2131) and is fixedly connected to the movable contact piece (51); the movable contact piece (51) is located on the upper part of the first partition plate (213), and the stop plate (522) of the top rod (52) is located on the lower part of the first partition plate (213), and the long side dimension of the stop plate (522) is larger than that of the third partition plate (2131). The size of the slit (2131) allows the third slit (2131) to limit the stop plate (522); the top rod (52) of the multiple auxiliary contacts and secondary terminal integrated module (3) is linked by the linkage shaft (54); the second rod (523) passes through the fourth slit (2141) and is hinged to the linkage shaft (54); the part of the second rod (523) that passes through the fourth slit (2141) is the driving part of the top rod (52); the second elastic member (53) is sleeved on the second rod (523).

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