A plug-in circuit breaker locking assembly and circuit breaker

Abstract

The locking assembly of the plug-in circuit breaker comprises a partition, an operating member, a locking member and a stop member. When the circuit breaker is opened, the locking member is located at a second locking position, and the operating member can drive the stop member to be completely withdrawn into the circuit breaker after rotating by a certain angle. When the circuit breaker is closed, the locking member is located at a first locking position, and the locking member limits the rotating angle of the operating member so that the stop member cannot be completely withdrawn into the circuit breaker. In the application, the circuit breaker needs to be rotated first and then pulled out from the installation position, which can reduce the misoperation.

Description

Technical Field

[0001] This invention relates to the field of low-voltage electrical equipment technology, and in particular to a plug-in circuit breaker locking assembly and a circuit breaker. Background Technology

[0002] Circuit breakers are classified into plug-in circuit breakers, fixed circuit breakers, and drawer-type circuit breakers according to their installation method. The use of plug-in circuit breakers can effectively improve the safety of electrical equipment use, so plug-in circuit breakers are widely used in industries such as communications.

[0003] To facilitate the installation and removal of plug-in circuit breakers, they are typically equipped with plug-in / pull-out components. By pushing or pulling these components, the circuit breaker can be positioned in its mounting location within the chassis or removed from its mounting position. Simultaneously, to prevent the circuit breaker from being pulled out while closed, it is usually also equipped with a locking mechanism. However, the plug-in / pull-out components and locking mechanisms in existing circuit breakers are structurally complex, require high manufacturing and / or assembly precision, and lack unlocking restrictions under certain circumstances. This allows the plug-in / pull-out components to be pulled out and the locking mechanism to be released simultaneously, posing a possibility of misoperation. Summary of the Invention

[0004] The main objective of this invention is to provide a plug-in circuit breaker locking assembly and circuit breaker, aiming to solve the aforementioned problems existing in the prior art.

[0005] To achieve the above objectives, the present invention provides a plug-in circuit breaker locking assembly, characterized in that it includes a spacer, an operating member, a locking member, and a stop member;

[0006] The spacer has a notch;

[0007] The operating element is movably disposed on the partition, including a gripping portion extending outside the partition and an operating element end inside the partition, wherein the gripping portion is used to control the operation element to move between a first operating position and a second operating position;

[0008] The locking member is movably disposed within the partition, including a first locking position and a second locking position. The locking member is provided with a first protrusion. In the first locking position, the first protrusion can abut against the end of the operating member to restrict the operating member to the first operating position. In the second locking position, the first protrusion can avoid the end of the operating member so that the operating member can rotate to the second operating position.

[0009] The stop is movable within the partition and can extend or retract from the notch to fix or release the circuit breaker. When the end of the operating member is in the second operating position, it can drive the stop to retract.

[0010] In some embodiments, the stop includes a stop head and a mating portion, the stop head moving within the notch, and the end of the operating member capable of pressing the mating portion to retract the stop head when in the second operating position.

[0011] In some embodiments, the locking member has a locking member head that extends out of the notch in the first locking position and retracts from the notch in the second locking position.

[0012] In some embodiments, the spacer further includes a positioning shaft and a stop wall;

[0013] The operating component also includes an assembly groove, through which the operating component is rotatably mounted on the positioning shaft;

[0014] The locking assembly further includes a second elastic element; the second elastic element is hinged to the positioning shaft, one end of the second elastic element abuts against the stop wall, and the other end is fixed to the operating member so that the operating member has a tendency to rotate toward the first operating position.

[0015] In some embodiments, the stop wall includes a first surface and a second surface adjacent to the first surface;

[0016] One end of the second elastic element abuts against the first surface of the stop wall;

[0017] The grip portion abuts against the second surface of the stop wall when in the first operating position.

[0018] In some embodiments, a first button and a second button are also included; the first button has a first guide portion, the second button has a second guide portion, and the first guide portion and the second guide portion form an accommodating space;

[0019] The locking member has a second protrusion on the side opposite to the first protrusion, the second protrusion being placed in the receiving space, and the second protrusion including a first receiving position and a second receiving position;

[0020] Wherein, the second protrusion is located in the first receiving position when the circuit is closed, so that the locking member is located in the first locking position; the second protrusion is located in the second receiving position when the circuit is open, so that the locking member is located in the second locking position.

[0021] In some embodiments, the first button moves in a first direction to close the circuit breaker, and the second button moves in the first direction to open the circuit breaker.

[0022] Both the first guide portion and the second guide portion are grooves that extend along the first direction and have openings facing each other, and have a certain width in the directions opposite to each other;

[0023] The first guide portion is provided with a first guide segment and a second guide segment in the first direction; the first guide segment has a first width; the second guide segment is adjacent to the first guide segment, and the width of the second guide segment gradually decreases as it moves away from the first guide segment.

[0024] In some embodiments, the second guide portion is provided with a third guide segment, a fourth guide segment and a fifth guide segment sequentially adjacent to each other in the first direction. The third guide segment has a second width, the fifth guide segment has a third width, the third width is smaller than the second width, and the fourth guide segment gradually transitions from the second width to the third width.

[0025] In some embodiments, the first accommodating position is between the first guide segment and the fifth guide segment, and the second accommodating position is between the second guide segment and the third guide segment.

[0026] In some embodiments, the locking component further includes a second elastic element;

[0027] The spacer includes a positioning shaft;

[0028] The second elastic element is hinged to the positioning shaft. One end of the second elastic element is attached to the first boss to make the locking element tend to rotate toward the second locking position, and the other end is fixed to the operating element to make the operating element tend to rotate toward the first operating position.

[0029] In some embodiments, the first button moves in a first direction to close the circuit breaker, and the second button moves in the first direction to open the circuit breaker.

[0030] The first guide portion has a first guide segment with a first width;

[0031] The second guide portion is provided with a third guide segment, a fourth guide segment and a fifth guide segment sequentially adjacent to each other in the first direction. The third guide segment has a second width, the fifth guide segment has a third width, the third width is smaller than the second width, and the fourth guide segment gradually transitions from the second width to the third width.

[0032] The first accommodating position is between the first guide segment and the fifth guide segment, and the second accommodating position is between the first guide segment and the third guide segment, immediately adjacent to the third guide segment.

[0033] In some embodiments, a first boss groove is provided on the first boss, and one end of the second elastic member abuts against the first boss groove.

[0034] In some embodiments, the locking assembly further includes a third elastic member, and the spacer is provided with a limiting groove;

[0035] The stop member is provided with a limiting shaft, and the third elastic member is sleeved on the limiting shaft. The limiting shaft and the third elastic member are assembled in the limiting groove, and the stop member can extend out of the notch under the push of the third elastic member.

[0036] The present invention also provides a circuit breaker, characterized in that it comprises:

[0037] Locking components as described in any of the foregoing embodiments.

[0038] The plug-in circuit breaker locking assembly proposed in this invention includes an operating member, a locking member, and a stop member. The locking member in the first locking position restricts the operating member so that the operating member cannot unlock the stop member. The locking member in the second locking position no longer restricts the operating member, allowing the operating member to rotate and unlock the stop member. In this invention, to pull the circuit breaker out of the installation position, the operating member must be rotated first and then pulled out, which can reduce misoperation.

[0039] The present invention restricts the rotation of the end of the operating member by means of the first boss of the locking member, and realizes the retraction of the stop member by means of the mating part on the stop member cooperating with the end of the operating member. The structure is simple and the assembly precision requirements are not high.

[0040] This invention separates the circuit breaker's closing and opening components from its plugging and unplugging components by providing a first button and a second button for closing and opening the circuit breaker, thus preventing malfunctions during closing, opening, and plugging / unplugging. The first and second buttons are respectively equipped with a first guide portion and a second guide portion, which, in conjunction with a second protrusion on the locking member, allows the locking member to switch between a first locking position and a second locking position. The head of the locking member extends out of a notch in the first locking position and retracts in the second locking position, ensuring that the circuit breaker can only be installed into the chassis when open, guaranteeing electrical safety.

[0041] Furthermore, the present invention further defines the first guide portion as having a first guide segment with a first width, the second guide portion as having a third guide segment with a second width, and a fifth guide segment with a third width, the third width being smaller than the second width. A fourth guide segment is also provided between the third guide segment and the fifth guide segment. One rotating arm of the second elastic member is attached to the first boss to make the locking member tend to rotate from the first locking position to the second locking position. The setting of the second elastic member and the second guide portion realizes that the locking member moves from the first locking position to the second locking position when the circuit is opened, avoiding the use of squeezing the locking member to change the locking position, reducing the contact area of ​​related structures, and helping to reduce the resistance of the circuit opening process.

[0042] The other arm of the second elastic element is fixed on the operating element, so that the second elastic element can act on both the operating element and the locking element at the same time: it can limit the operating element and help the operating element reset after the operating element rotates, and it can also limit the locking element and retract the locking element into the circuit breaker when the circuit breaker is tripped. Attached Figure Description

[0043] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0044] The methods, systems, and / or procedures shown in the accompanying drawings will be further described with reference to exemplary embodiments. These exemplary embodiments will be described in detail with reference to the drawings. These exemplary embodiments are non-limiting exemplary embodiments, wherein reference numerals in the various views of the drawings represent similar mechanisms.

[0045] Figure 1 This application provides circuit breaker tripping state diagrams for some embodiments of the present application.

[0046] Figure 2 This application provides circuit breaker closing state diagrams for some embodiments of the present application.

[0047] Figure 3 The following are structural diagrams of the partition components involved in some embodiments of this application;

[0048] Figure 4 This is a structural diagram of the operating components involved in some embodiments of this application;

[0049] Figure 5 The following are structural diagrams of locking components involved in some embodiments of this application;

[0050] Figure 6 The following are structural diagrams of the stop components involved in some embodiments of this application;

[0051] Figure 7 This is a structural diagram showing the assembled locking components involved in some embodiments of this application;

[0052] Figure 8 This is a diagram showing the positional relationship of each structure of the locking component when the locking element is in the first locking position in some embodiments of this application;

[0053] Figure 9 This is a diagram showing the positional relationship of the various structures of the locking component when the locking element is in the second locking position in some embodiments of this application;

[0054] Figure 10 This is a structural diagram of the first button involved in some embodiments of this application;

[0055] Figure 11 This is a structural diagram of the second button involved in some embodiments of this application;

[0056] Figure 12 This is a structural diagram of the operating components involved in some embodiments of this application;

[0057] Figure 13 The following are structural diagrams of locking components involved in some embodiments of this application;

[0058] Figure 14 This is a structural diagram of the first button involved in some embodiments of this application;

[0059] Figure 15 This is a diagram showing the positional relationship of the various structures of the locking component when the locking element is in the second locking position in some embodiments of this application;

[0060] Figure 16 This is a diagram showing the positional relationship of the various structures of the locking component when the locking element is in the first locking position in some embodiments of this application.

[0061] Icons: 1-Electromagnetic drive component; 2-Transmission assembly; 3-Locking assembly; 4-Closing / opening assembly; 5-Base; 6-Operating mechanism; 31-Operating component; 31'-Operating component; 311-Grip part; 312-Rotating arm guide groove; 312'-Rotating arm guide groove; 313-Operating component end; 314-Rotating arm groove; 315-Assembly groove; 32-Partition; 321-First button channel; 322-Second button channel; 323-Channel; 324-Positioning shaft; 325-Separating surface; 326-Notch; 327-Limiting groove; 328-Stop wall; 33-Second elastic component; 34-Locking component; 34'-Locking component; 341-Locking component body; 342-Locking hole; 343-First boss; 3431'-First boss groove; 3 44-Second boss; 3441-First end; 3442-Second end; 345-Locking member head; 35-Stop; 351-Stop member head; 352-Mating part; 353-Limiting shaft; 354-Stop member body; 36-Third elastic member; 41-First button; 41'-First button; 4110-First button head; 412-First guide part; 412'-First guide part; 4121-First guide segment; 4121'-First guide segment; 4122-Second guide segment; 42-Second button; 4210-Second button head; 422-Second guide part; 4221-Third guide segment; 4222-Fourth guide segment; 4223-Fifth guide segment; 61-Moving contact; 62-Stationary contact. Detailed Implementation

[0062] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0063] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0064] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0065] In the description of this application, it should be noted that the use of terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" to indicate orientation or positional relationships is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product is in use. These terms are used solely for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the use of terms such as "first" and "second" in the description of this application is only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0066] Furthermore, the use of terms such as "horizontal" and "vertical" in the description of this application does not imply that the component is required to be absolutely horizontal or suspended, but rather that it may be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but rather that it may be slightly tilted.

[0067] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0068] Example 1

[0069] like Figure 1 and Figure 2 As shown in some embodiments of this application, the circuit breaker is a plug-in type circuit breaker, including an electromagnetic drive 1, a transmission assembly 2, a locking assembly 3, a closing / opening assembly 4, an operating mechanism 6, a moving contact 61, a stationary contact 62, and a base 5 for accommodating the components. The circuit breaker is installed in a chassis. The transmission assembly 2 moves under the drive of the electromagnetic drive 1 and acts on the closing / opening assembly 4. The closing / opening assembly 4, the operating mechanism 6, and the moving contact 61 are connected in sequence, thereby the closing / opening assembly 4 drives the operating mechanism 6 to make the moving contact 61 contact the stationary contact 62 (e.g., ...). Figure 2 (as shown) or separated (such as) Figure 1 As shown in the figure, it realizes the closing or opening of the circuit breaker.

[0070] For ease of explanation Figure 1 and Figure 2 The circuit breaker shown is now represented by a spatial rectangular coordinate system. The left-right direction (length of the circuit breaker) is defined as the X-axis, with the positive X-axis direction (first direction) to the right. The up-down direction (width of the circuit breaker) is defined as the Y-axis, with the positive Y-axis direction (second direction) pointing upwards. The direction perpendicular to the paper and outwards is defined as the positive Z-axis direction (third direction). Subsequent figures and descriptions will use this coordinate system. Figure 7 , Figure 8 (b), Figure 9 (b), Figure 15 , Figure 16 All views are XY plan views. It should be noted that the directional descriptions used to illustrate the structure and operation of the circuit breaker in the embodiments of this application, including up, down, left, right, front, and back, are not absolute methods, but relative directions. These directional descriptions can correctly correspond to the structural posture shown in the figures, but when the structural posture changes, these directional descriptions need to be interpreted and changed accordingly to adapt to such changes in structural posture.

[0071] [Locked Component]

[0072] The locking component 3 includes an operating member 31, a spacer 32, a second elastic member 33, a locking member 34, a stop member 35, and a third elastic member 36.

[0073] like Figure 1 , Figure 2 , Figure 8 (a) and Figure 9 As shown in (a), the spacer 32 is disposed at one end within the base 5. Figure 3As shown, the partition 32 is divided into a first layer inside the paper surface and a second layer outside the paper surface by the partition surface 325. The side of the first layer of the partition 32 has a second button channel 322 and a first button channel 321, through which the second button head 4210 and the first button head 4110 pass, respectively. The second layer of the partition 32 has a positioning shaft 324 on the partition surface 325. The positioning shaft 324 is engaged with a shaft hole to allow the operating member 31 and the locking member 34 to rotate around the positioning shaft 324. The partition surface 325 and the wall perpendicular to the partition surface 325 work together to define a semi-enclosed channel 323 for the gripping part 311 of the operating member 31 to be placed and allow the gripping part 311 to rotate around the positioning shaft 324 within a certain angle range. Specifically, one of the walls defining the channel 323 is a stop wall 328. The second layer of the partition 32 also has a limiting groove 327, and a notch 326 is provided on the side wall opposite to the limiting groove 327 in the second layer.

[0074] like Figure 4 As shown, the operating component 31 is in the form of a handle, including a mounting groove 315, a gripping part 311 located on one side of the mounting groove 315, and an operating component end 313 located on the other side of the mounting groove 315. The side wall of the mounting groove 315 has a rotating arm guide groove 312 and a rotating arm groove 314 of a certain width. Figures 7-9 As shown, when the operating member 31 cooperates with the spacer 32, the mounting groove 315 of the operating member 31 is mounted on the positioning shaft 324 of the spacer 32, allowing the operating member 31 to rotate around the positioning shaft 324. The gripping part 311 of the operating member 31 extends from the channel 323 out of the spacer 32 and the base 5, allowing the user to rotate and / or pull the operating member 31 from outside the circuit breaker. A second elastic member 33 is also installed in the mounting groove 315 of the operating member 31. The second elastic member 33 is a torsion spring. One arm of the second elastic member 33 is fixed in the arm groove 314 on the operating member 31, and the other arm extends through the arm guide groove 312 and abuts against the stop wall 328 of the spacer 32, so that the operating member 31 has a tendency to rotate and reset to the first operating position in the second clockwise direction (counterclockwise direction). The surface defining the channel 323 on the stop wall 328 and the surface against which the other arm of the second elastic member 33 abuts are two different surfaces. Specifically, the surface defining the channel 323 is the length surface of the stop wall 328, which is a surface on the stop wall 328 extending along its length and perpendicular to the partition surface 325. The surface against which the other arm of the second elastic member 33 abuts is the thickness surface of the stop wall 328, which is a surface on the stop wall 328 extending along its thickness and perpendicular to the partition surface 325. The thickness surface is adjacent to the length surface. The second elastic member 33 causes the operating member 31 to... Figures 7-9The plane shown maintains a tendency to rotate around the positioning axis 324 in the second clockwise direction (counterclockwise direction). That is, when the operating member 31 is not initially operated, it is located in the first operating position and can be rotated by the user in the first clockwise direction (clockwise direction) to the second operating position. After the user releases the operating member 31, the second elastic member 33 can make the operating member 31 rotate counterclockwise to reset to the first operating position. It can be understood that when the operating member 31 is reset to the first operating position, it abuts against the length surface of the stop wall 328.

[0075] Figure 5 (a) and Figure 5 (b) shows different perspectives of the locking member 34. It can be seen that the locking member 34 includes a locking member body 341, a first boss 343 disposed on one side of the locking member body 341, a second boss 344 disposed on the other side of the locking member body 341 opposite to the first boss 343, a locking hole 342 formed at one end of the locking member body 341, the locking hole 342 connecting the side where the first boss 343 is located and the other side where the second boss 344 is located, and a locking member head 345 extending laterally from the end of the locking member body 341 away from the locking hole 342 and located between the first boss 343 and the second boss 344. Figures 7-9 As shown, when the locking member 34 and the spacer 32 are engaged, the locking hole 342 of the locking member 34 (not in) Figures 7-9 (As shown in the diagram) It is fitted onto the positioning shaft 324 of the spacer 32, allowing the locking member 34 to rotate about the positioning shaft 324. The locking member 34 has a first locking position and a second locking position within the circuit breaker, such as... Figure 8 As shown in (a), when the circuit breaker is closed, the locking member 34 rotates to the bottom in the second clockwise (counterclockwise) direction around the positioning shaft 324 and is in the first locked position. The head 345 of the locking member extends out of the circuit breaker through the notch 326; Figure 9 As shown in (a), when the circuit breaker is tripped, the locking member 34 rotates to the bottom in the first clockwise direction around the positioning shaft 324 and is in the second locked position, and the head 345 of the locking member retracts into the circuit breaker.

[0076] The stop 35 is movable within the spacer 32 and can extend or retract from the notch 326 to secure or release the circuit breaker. Figure 6 As shown, the stop 35 includes a stop body 354, a limiting shaft 353 located on one side of the stop body 354, a stop head 351 located on the other side of the stop body 354 opposite to the limiting shaft 353, and a mating part 352 is also provided on the side of the stop body 354.

[0077] like Figure 7As shown, the third elastic element 36 is a spring, and the third elastic element 36 is fitted onto the limiting shaft 353 of the stop 35. The limiting shaft 353 and the third elastic element 36 are assembled together in the limiting groove 327 of the spacer 32. The stop 35 extends at least partially out of the circuit breaker when not driven by the operating element 31. Specifically, the head 351 of the stop 35 may extend out of the circuit breaker through the notch 326 under the push of the third elastic element 36 and engage with the chassis where the circuit breaker is located to limit its movement, preventing the circuit breaker from sliding out of the chassis.

[0078] like Figure 8 As shown in (a), when the locking member 34 is in the first locked position, the operating member 31 is in the first operating position. The locking member 34 restricts the rotation angle of the operating member 31 so that the stop member 35 cannot be fully retracted into the circuit breaker. Specifically, during the clockwise rotation of the operating member 31 by the user, the first boss 343 of the locking member 34 restricts the operating member 31 from rotating to the second operating position by abutting against the end 313 of the operating member. Therefore, the user cannot rotate the operating member 31 clockwise or can only rotate the operating member 31 by a small angle. The operating member 31 is restricted to the first operating position, and the head 351 of the stop member cannot be retracted into the circuit breaker, thereby indicating to the user that the circuit breaker is in the closed state and the operating member 31 cannot be pulled to remove the circuit breaker from its installation position in the chassis.

[0079] like Figure 9 As shown in (a), when the locking member 34 is in the second locked position, the first boss 343 no longer restricts the operating member 31 from pressing the stop member 35. Figure 9 (In (a) the locking element 34 is shown clearly, the stop element 35 is omitted). Figure 7 The stop 35 in the circuit breaker can be understood to allow the first boss 343 to avoid the end 313 of the operating member. The operating member 31 can be operated by the user to rotate from the first operating position to the second operating position and drive the stop 35 to be completely retracted into the circuit breaker. Specifically, when the user rotates the operating member 31 clockwise at a large angle to the second operating position, the end 313 of the operating member can press the mating part 352 of the stop member 35 and compress the third elastic member 36 during the rotation, so that the head 351 of the stop member is retracted from the outside of the circuit breaker into the circuit breaker through the notch 326. At this time, if the operating member 31 is pulled out, the circuit breaker can be pulled out from the installation position in the chassis. If the operating member 31 is released instead of being pulled out, under the action of the second elastic member 33, the operating member 31 rotates counterclockwise, causing the end 313 of the operating member to disengage from the mating part 352 of the stop member 35. The third elastic member 36 is no longer compressed and rebounds. Under the restoring force of the third elastic member 36, the head 351 of the stop member extends out of the circuit breaker again through the notch 326 and engages with the chassis where the circuit breaker is located.

[0080] It is understood that the mating part 352 can be a groove, a protrusion, or other existing structures or components; the mating of the operating member 31 and the mating part 352 is not limited to pressing the mating part 352 of the stop member 35 by the end 313 of the operating member, but can also be achieved by the operating member 31 driving the stop member 35 through a connecting rod or other mating structure between the two.

[0081] [The relationship between the locking component and the closing / opening buttons]

[0082] Please refer to Figures 8-11 The locking element 34, the first button 41, and the second button 42 work together to switch the locking element 34 between the first locking position and the second locking position, thereby realizing the locking and unlocking of the rotation of the operating element 31.

[0083] like Figure 1 and Figure 2 As shown, the first button 41 can move from the pop-up state along the first direction ( Figure 2 The second button 42 can move from the pop-up state to the pressed state to achieve closing, and can move from the pop-up state along the first direction ( Figure 1 Move to the right to the pressed position to open the circuit breaker. Figure 10 and Figure 11 As shown, the first button 41 has a first guide portion 412 of a certain length, and the second button 42 has a second guide portion 422 of a certain length. Both the first guide portion 412 and the second guide portion 422 extend along a first direction. Both the first guide portion 412 and the second guide portion 422 are grooves with openings facing each other, and the grooves have a certain width in their opposing directions, thus forming a receiving space together. When the first button 41 and the second button 42 are engaged with the spacer 32, the first button 41 and the second button 42 are located in the first layer of the spacer 32, and the locking body 341 of the locking member 34 is located in the second layer of the spacer 32. The second boss 344 of the locking member 34 protrudes from the locking member body 341 located in the second layer toward the first layer at a position other than the partition surface 325 of the spacer 32. The first guide portion 412 and the second guide portion 422 also have openings in the direction facing the second layer of the spacer 32 (i.e., the positive Z-axis direction, the third direction), so that the second boss 344 protrudes into the receiving space formed by the first guide portion 412 and the second guide portion 422 through the opening.

[0084] like Figure 10 As shown, the first guide portion 412 is sequentially provided with a first guide segment 4121 and a second guide segment 4122 adjacent to each other in a first direction. The first guide segment 4121 has a first width, and the second guide segment 4122 is adjacent to the first guide segment 4121; as it moves away from the first guide segment 4121, the width of the second guide segment 4122 gradually decreases. Figure 11As shown, the second guide section 422 is sequentially arranged with a third guide section 4221, a fourth guide section 4222, and a fifth guide section 4223 in a first direction. The third guide section 4221 has a second width, and the fifth guide section 4223 has a third width, which is smaller than the second width. The fourth guide section 4222 between the third guide section 4221 and the fifth guide section 4223 gradually transitions from the second width to the third width.

[0085] like Figure 8 (a) and Figure 8 As shown in (b), when the first button 41 is pressed, the accommodating space has a first shape, and the second protrusion 344 is limited to a first accommodating position in the accommodating space of the first shape: between the first guide segment 4121 of the first guide portion 412 and the fifth guide segment 4223 of the second guide portion 422; at this time, the locking member 34 rotates to the first locking position, and the first protrusion 343 of the locking member 34 contacts the end of the operating member 313 or the first protrusion 343 has a small gap with the end of the operating member 313 to restrict the rotation of the operating member 31. The head 345 of the locking member extends out of the circuit breaker, so that the circuit breaker cannot be installed in the chassis when it is closed, but can only be installed in the chassis when it is open, so as to ensure the user's safety.

[0086] like Figure 9 (a) and Figure 9 As shown in (b), when the second button 42 is in the pressed state, the accommodating space has a second shape, and the second boss 344 is limited to a second accommodating position in the accommodating space of the second shape: between the second guide segment 4122 of the first guide 412 and the third guide segment 4221 of the second guide 422; at this time, the locking member 34 rotates to the second locking position, and the locking member head 345 retracts into the circuit breaker.

[0087] The locking member 34 switches between the first locking position and the second locking position via the first button 41 and the second button 42. Changing the state of the first button 41 or the second button 42 can change the position of the second boss 344, thereby switching the locking position of the locking member 34.

[0088] Please refer to Figure 8 and Figure 9To switch the locking member 34 from the first locking position to the second locking position, the second button 42 needs to be pressed. The second button 42 switches from the pop-up state to the pressed state and moves the second guide 422 in the first direction (rightward). Due to the action of the closing / opening assembly 4, the first button 41 switches from the pressed state to the pop-up state and moves the first guide 412 in the opposite direction (leftward). The second guide segment 4122 gradually approaches and contacts the first end 3441 of the second boss 344. As the width of the second guide segment 4122 gradually decreases, as the second guide segment 4122 continues to move towards the second boss 344, the second guide segment 4122 presses against the first end 3441 of the second boss 344 and causes the second boss 344 to gradually move towards the second guide 422. At the same time, as the second guide 422 moves in the first direction, the width of the second guide 422 gradually increases. Under the pressure of the second guide section 4122, the second boss 344 moves from the first receiving position to the second receiving position between the second guide section 4122 and the third guide section 4221, and the locking member 34 completes the switch from the first locking position to the second locking position.

[0089] To switch the locking member 34 from the second locking position to the first locking position, the first button 41 must be pressed. The entire process is the reverse of the aforementioned switching process. At this time, the first button 41 switches from the pop-up state to the pressed state, causing the first guide portion 412 to move in the first direction. The second button 42 switches from the pressed state to the pop-up state, causing the second guide portion 422 to move in the opposite direction to the first direction. The fourth guide segment 4222 presses against the second end 3442 of the second boss 344, causing the second boss 344 to gradually move towards the first guide portion 412. Simultaneously, as the first guide portion 412 moves in the first direction, its width gradually increases. Under the pressure of the fourth guide segment 4222, the second boss 344 moves from the second receiving position to the first receiving position between the first guide segment 4121 and the fifth guide segment 4223, completing the switch of the locking member 34 from the second locking position to the first locking position.

[0090] In this embodiment, when the first button is pressed, the circuit breaker is in the closed state, and when the second button is pressed, the circuit breaker is in the open state. When the circuit breaker is open, the locking member 34 retracts into the circuit breaker. The stop member head 351 has a beveled portion. During the process of inserting the circuit breaker into the chassis, one side of the beveled portion contacts the chassis wall and compresses the third elastic member 36, so that the stop member 35 also retracts into the circuit breaker. After the circuit breaker is installed in a specific position in the chassis, the beveled portion disengages from the chassis wall. Under the action of the third elastic member 36, the stop member 35 pops out of the circuit breaker, and the other side of the beveled portion hooks onto the chassis wall. Alternatively, the user can rotate the operating member 31 to retract the stop member 35 into the circuit breaker until the circuit breaker is installed in a specific position in the chassis. Then, the user releases the operating member 31, and under the action of the third elastic member 36, the stop member 35 pops out of the circuit breaker and hooks onto the chassis wall. This embodiment ensures that the circuit breaker can only be installed in the chassis when it is in the open state, thereby improving the user's electrical safety during the installation process.

[0091] Example 2

[0092] Please refer to Figures 12-14 Compared with Embodiment 1, Embodiment 2 has a different operating component 31', a locking component 34' and a first button 41', while other components are the same.

[0093] like Figure 12 As shown, in Embodiment 2, the operating member 31' is formed by widening the rotating arm guide groove 312 based on the operating member 31 in Embodiment 1. The operating member 31' has the same other features as the operating member 31.

[0094] like Figure 13 As shown, in Embodiment 2, the locking member 34' has a first boss groove 3431' on the first boss 343 of the locking member 34 in Embodiment 1, and the locking member 34' has the same other features as the locking member 34.

[0095] like Figure 14 As shown, in Embodiment 2, the first button 41' removes the second guide segment 4122 from the first guide portion 412 of the first button 41 in Embodiment 1. A portion of the second guide segment 4122 is replaced by the original first guide segment 4121 to form an integral first guide segment 4121', thereby constituting the first guide portion 412'. The first button 41' has the same other features as the first button 41.

[0096] like Figures 15-16 As shown, during assembly, one arm of the second elastic member 33 is fixed in the arm groove 314, and the other arm extends out through the arm guide groove 312' and no longer abuts against the stop wall 328 of the spacer 32, but abuts against the first boss groove 3431'. The second elastic member 33 causes the operating member 31' to... Figures 15-16The plane shown has a tendency to rotate and reset to the first operating position in the second clockwise direction (counterclockwise direction). At the same time, the second elastic member 33 causes the locking member 34' to have a tendency to rotate from the first locking position to the second locking position in the first clockwise direction (clockwise direction).

[0097] like Figure 16 As shown, when the circuit breaker is in the closed state, the accommodating space formed by the first guide 412' and the second guide 422 has a third form, and the second boss 344 (not in) Figure 16 (As shown in the diagram) In the third configuration, it is confined to the first accommodating position in the accommodating space: between the first guide segment 4121' of the first guide portion 412' and the fifth guide segment 4223 of the second guide portion 422; the fifth guide segment 4223 prevents the second elastic member 33 from driving the locking member 34' to rotate clockwise. At this time, the locking member 34' is in the first locked position, and the head 345 of the locking member extends out of the circuit breaker, so that the circuit breaker cannot be installed in the chassis when it is closed, but can only be installed in the chassis when it is open. That is, the circuit breaker cannot be removed when it is closed, so as to ensure the user's safety.

[0098] When the circuit breaker switches from the closed state to the open state, as the second guide section 422 moves relative to the second boss 344 in the first direction, when the fourth guide section 4222 with a gradually changing width passes the second boss 344, since there is no longer an obstruction from the fifth guide section 4223, the locking member 34' gradually rotates clockwise under the action of the second elastic member 33, and the second boss 344 moves along the fourth guide section 4222 to the third guide section 4221. Figure 15 As shown, at this time, the first guide section 412' (not in) Figure 15 The accommodating space formed by the second guide portion 422 (shown in the diagram) has a fourth form, and the elastic force of the second elastic member 33 can limit the second boss 344 (not shown in the diagram). Figure 15 (shown in the image) In the second receiving position: First guide segment 4121' (not shown in the image) Figure 15 (shown in the image) and the position between the third guide section 4221 and the third guide section 4221; the locking member 34' is in the second locked position, and the locking member head 345 is retracted into the circuit breaker.

[0099] When the circuit breaker in this embodiment switches from the closed state to the open state, it does not need to rely on the second guide section 4122 to squeeze the second boss 344 to change the locking position of the locking member 34, which reduces the contact area of ​​the related structures and helps to reduce the resistance of the opening process.

[0100] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A plug-in circuit breaker locking assembly (3), characterized in that: It includes a spacer (32), an operating component (31), a locking component (34), and a stop component (35); The spacer (32) has a notch (326); The operating member (31) is movably disposed on the partition (32), including a gripping part (311) extending outside the partition (32) and an operating member end (313) inside the partition (32), wherein the gripping part (311) is used to control the operating member (31) to move between a first operating position and a second operating position; The locking member (34) is movably disposed within the partition (32), including a first locking position and a second locking position. The locking member (34) is provided with a first boss (343). In the first locking position, the first boss (343) can abut against the end of the operating member (313) to restrict the operating member (31) in the first operating position. In the second locking position, the first boss (343) can avoid the end of the operating member (313) so that the operating member (31) can rotate to the second operating position. The stop (35) is movably disposed within the partition (32) and can extend or retract from the notch (326) to fix or release the circuit breaker. When the end of the operating member (313) is in the second operating position, it can drive the stop (35) to retract. The plug-in circuit breaker locking assembly (3) further includes a first button (41) and a second button (42); the first button (41) has a first guide portion (412), and the second button (42) has a second guide portion (422), the first guide portion (412) and the second guide portion (422) forming an accommodating space; The locking member (34) has a second boss (344) on the side opposite to the first boss (343), the second boss (344) is placed in the receiving space, and the second boss (344) includes a first receiving position and a second receiving position. The second boss (344) is located in the first receiving position when the circuit is closed, so that the locking member (34) is located in the first locking position; the second boss (344) is located in the second receiving position when the circuit is open, so that the locking member (34) is located in the second locking position.

2. The locking component (3) as claimed in claim 1, characterized in that: The stop (35) includes a stop head (351) and a mating part (352), the stop head (351) moves within the notch (326), and the operating end (313) can press the mating part (352) in the second operating position to retract the stop head (351).

3. The locking component (3) as claimed in claim 1, characterized in that: The locking member (34) is provided with a locking member head (345), which extends out of the notch (326) in the first locking position and retracts from the notch (326) in the second locking position.

4. The locking component (3) as claimed in claim 1, characterized in that: The partition (32) also includes a positioning shaft (324) and a stop wall (328); The operating component (31) also includes an assembly groove (315), through which the operating component (31) is rotatably mounted on the positioning shaft (324); The locking assembly (3) further includes a second elastic element (33); the second elastic element (33) is hinged to the positioning shaft (324), one end of the second elastic element (33) abuts against the stop wall (328), and the other end is fixed to the operating member (31) so that the operating member (31) has a tendency to rotate toward the first operating position.

5. The locking component (3) as claimed in claim 4, characterized in that: The stop wall (328) includes a first surface and a second surface adjacent to the first surface; One end of the second elastic member (33) abuts against the first surface of the stop wall (328); The grip (311) abuts against the second side of the stop wall (328) when in the first operating position.

6. The locking component (3) as claimed in claim 1, characterized in that: The first button (41) moves along the first direction to close the circuit, and the second button (42) moves along the first direction to open the circuit. The first guide portion (412) and the second guide portion (422) are both grooves that extend along the first direction and face each other with an opening, and have a certain width in the directions opposite to each other; The first guide portion (412) is provided with a first guide segment (4121) and a second guide segment (4122) in the first direction; the first guide segment (4121) has a first width; the second guide segment (4122) is adjacent to the first guide segment (4121), and the width of the second guide segment (4122) gradually decreases as it moves away from the first guide segment (4121).

7. The locking component (3) as claimed in claim 6, characterized in that: The second guide section (422) is provided with a third guide section (4221), a fourth guide section (4222) and a fifth guide section (4223) in sequence in the first direction. The third guide section (4221) has a second width, the fifth guide section (4223) has a third width, the third width is smaller than the second width, and the fourth guide section (4222) gradually transitions from the second width to the third width.

8. The locking component (3) as claimed in claim 7, characterized in that: The first accommodating position is between the first guide segment (4121) and the fifth guide segment (4223), and the second accommodating position is between the second guide segment (4122) and the third guide segment (4221).

9. The locking component (3) as claimed in claim 1, characterized in that: The locking component (3) also includes a second elastic element (33); The spacer (32) includes a positioning shaft (324); The second elastic element (33) is hinged to the positioning shaft (324). One end of the second elastic element (33) is attached to the first boss (343) so that the locking element (34) tends to rotate toward the second locking position, and the other end is fixed to the operating element (31) so that the operating element (31) tends to rotate toward the first operating position.

10. The locking component (3) as claimed in claim 9, characterized in that: The first button (41) moves along the first direction to close the circuit, and the second button (42) moves along the first direction to open the circuit. The first guide portion (412) has a first guide segment (4121') with a first width; The second guide section (422) is provided with a third guide section (4221), a fourth guide section (4222) and a fifth guide section (4223) sequentially adjacent to each other in the first direction. The third guide section (4221) has a second width, the fifth guide section (4223) has a third width, the third width is smaller than the second width, and the fourth guide section (4222) gradually transitions from the second width to the third width. The first accommodating position is between the first guide segment (4121') and the fifth guide segment (4223), and the second accommodating position is between the first guide segment (4121') and the third guide segment (4221), immediately adjacent to the third guide segment (4221).

11. The locking component (3) as claimed in claim 9, characterized in that: The first boss (343) is provided with a first boss groove (3431'), and one end of the second elastic member (33) abuts against the first boss groove (3431').

12. The locking component (3) as described in any one of claims 1-11, characterized in that: The locking component (3) further includes a third elastic element (36), and the spacer (32) is provided with a limiting groove (327). The stop (35) is provided with a limiting shaft (353), and the third elastic element (36) is sleeved on the limiting shaft (353). The limiting shaft (353) and the third elastic element (36) are assembled in the limiting groove (327), and the stop (35) can extend out of the notch (326) under the push of the third elastic element (36).

13. A circuit breaker, characterized in that, include: The locking component as described in any one of claims 1-12.

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