circuit breaker

Abstract

The circuit breaker of the utility model, including circuit breaker body, electric operating mechanism and indicating structure, indicating structure includes indicating part, first ejector rod, second ejector rod and elastic part, elastic part is connected with indicating part and / or first ejector rod and / or second ejector rod, second ejector rod sets up in the shell of circuit breaker body and is driven with contact shaft cooperation, indicating part and first ejector rod set up in mechanism shell, first ejector rod is driven with indicating part cooperation, first ejector rod and second ejector rod linear movement setting and drive cooperation, indicating part rotation setting, first ejector rod and second ejector rod are in the same straight line, first ejector rod extends into the shell of circuit breaker body and is connected with second ejector rod or second ejector rod extends into mechanism shell and is connected with first ejector rod, when contact shaft rotation drives moving contact and static contact contact or separate, can drive second ejector rod drive first ejector rod, make second ejector rod and first ejector rod along linear motion drive indicating part rotation, be convenient for electric operating mechanism and circuit breaker body installation.

Description

Technical Field

[0001] This utility model relates to the field of low-voltage electrical appliances, specifically to a circuit breaker. Background Technology

[0002] A circuit breaker generally includes an electric operating mechanism and a circuit breaker body. The electric operating mechanism includes a motor, which controls the reciprocating movement of the handle on the circuit breaker body to realize the opening and closing of the circuit breaker.

[0003] The existing electric control mechanism's indicator structure consists of a turntable, indicator, light guide, and display module that move in tandem with the handle, and it does not have an isolated indicator function.

[0004] When an abnormal situation occurs during the operation of a circuit breaker, such as when the moving and stationary contacts of the circuit breaker are abnormally stuck together, although the moving and stationary contacts cannot be separated normally and are in a fault state, the indicating structure will still force the circuit breaker to be in the open state under the control of the motor, which poses a safety hazard. Utility Model Content

[0005] The purpose of this invention is to overcome at least one defect of the prior art and provide a circuit breaker with an isolation indication function.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] This utility model provides a circuit breaker, including a circuit breaker body, an electric operating mechanism disposed above the circuit breaker body, and an indicating structure. The circuit breaker body includes a circuit breaker body housing and a handle, an operating mechanism, a rotatably disposed contact shaft, at least one moving contact disposed on the contact shaft, and a stationary contact corresponding to the moving contact. The operating mechanism is connected to the contact shaft, and the handle is connected to the operating mechanism and partially extends out of the circuit breaker body housing. The electric operating mechanism includes a mechanism housing.

[0008] The indicating structure includes an indicating element, a first push rod, a second push rod, and at least one elastic element. The at least one elastic element is connected to the indicating element and / or the first push rod and / or the second push rod. The second push rod is disposed within the circuit breaker body housing and drives the contact shaft. The indicating element and the first push rod are disposed within the mechanism housing. The first and second push rods are linearly movable, and the indicating element is rotatable. The first push rod extends into the circuit breaker body housing and connects to the second push rod, or the second push rod extends into the mechanism housing and connects to the first push rod. When the contact shaft rotates, causing the moving contact to contact or separate from the stationary contact, it can drive the second push rod to drive the first push rod, so that the second push rod and the first push rod move linearly to drive the indicating element to rotate to indicate the circuit breaker status.

[0009] In one possible implementation, an intermediate base is also provided between the electric operating mechanism and the circuit breaker body, the electric operating mechanism and the circuit breaker body being fixedly installed via the intermediate base.

[0010] In one possible implementation, the circuit breaker body includes a circuit breaker faceplate mounted on the side of the circuit breaker body housing facing the electric operating mechanism, the faceplate including a display through-hole for a first push rod and / or a second push rod to pass through.

[0011] In one possible implementation, the circuit breaker faceplate also includes a removable cover that is detachably mounted to the display through-hole.

[0012] In one possible implementation, the intermediate base is a rectangular structure, including a shielding part for shielding the circuit breaker operating surface and mounting parts protruding at the four corners of the shielding part. The shielding part includes a rectangular handle hole located in the middle of the shielding part for the handle to pass through, and a rectangular clearance hole located at one end of the shielding part.

[0013] In one possible implementation, the electric operating mechanism further includes a first micro switch, a second micro switch, and a circuit board disposed within the mechanism housing. The first and second micro switches are connected to the circuit board. The electric operating mechanism drives the first micro switch to switch states when the handle of the circuit breaker body is driven; and drives the second micro switch to switch states when the indicator or the first push rod is moved.

[0014] In one possible implementation, the electric operating mechanism includes an electric drive mechanism and a slider disposed within the mechanism housing. The electric drive mechanism drives the slider to move linearly via a turntable, causing the handle to swing. The first micro switch includes a first actuated part, and the side of the turntable drives and cooperates with the first actuated part. While the electric drive mechanism drives the turntable to rotate and cause the slider to move linearly, the turntable also drives the first actuated part to switch the state of the first micro switch. The second micro switch includes a second actuated part, and the indicator drives and cooperates with the second actuated part. When the indicator rotates to indicate the circuit breaker state, it drives the second actuated part to switch the state of the second micro switch. The force directions of the first actuated part and the second actuated part are perpendicular.

[0015] In one possible implementation, at least one elastic element includes a first elastic element and a second elastic element. The first elastic element is located inside the mechanism housing and connected to the indicator, driving the indicator to rotate. The second elastic element is located inside the circuit breaker body housing and connected to the second push rod, driving the second push rod to move linearly.

[0016] In one possible implementation, at least one elastic element includes a second elastic element, and an auxiliary contact module is further provided inside the circuit breaker body housing. The auxiliary contact module includes an auxiliary contact module housing and a third micro switch disposed inside the auxiliary contact module housing. The second elastic element and the second push rod are located inside the auxiliary contact module housing. The second elastic element is connected to the second push rod to drive the second push rod to reset. The second push rod is connected to the third micro switch to drive the third micro switch to switch states. One end of the second push rod extends out of the auxiliary contact module housing and is connected to the first push rod, and the other end of the second push rod extends out of the auxiliary contact module housing and cooperates with the contact shaft.

[0017] In one possible implementation, the circuit breaker body housing is further provided with an auxiliary contact module. The auxiliary contact module includes an auxiliary contact module housing and a third micro switch disposed within the auxiliary contact module housing, as well as a first driving member disposed on one side of the third micro switch. At least one elastic member includes a second elastic member located within the auxiliary contact module. The first driving member is connected to the third micro switch to drive the third micro switch to switch states. The second elastic member is connected to the first driving member to drive the first driving member to reset. One end of the first driving member extends out of the auxiliary contact module housing and cooperates with a second push rod, while the other end is located within the auxiliary contact module housing.

[0018] In one possible implementation, the circuit breaker body housing and / or intermediate base are provided with a second through hole, the second through hole having a funnel-shaped recessed groove on the side facing the mechanism housing, the outer diameter of the funnel-shaped recessed groove being larger than the diameter of the second through hole, and the inner diameter of the funnel-shaped recessed groove being equal to the diameter of the second through hole, the first push rod passing through the second through hole and extending into the circuit breaker body housing to connect with the second push rod.

[0019] In one possible implementation, the first push rod includes a first push rod body, a first push rod drive part that drives with an indicator, and a first connecting part that drives with a second push rod, wherein the first push rod drive part and the first connecting part are located at both ends of the first push rod body;

[0020] The second push rod includes a second push rod body, a second connecting part that drives and cooperates with the first push rod, and a second push rod driving part that drives and cooperates with the contact shaft. The second connecting part and the second push rod driving part are located at both ends of the second push rod body, and the second connecting part drives and cooperates with the first connecting part.

[0021] In one possible implementation, the first connecting portion includes an arcuate protrusion, and the second connecting portion includes an arcuate groove; or, the first connecting portion includes an arcuate groove, and the second connecting portion includes an arcuate protrusion, wherein the arcuate protrusion is at least partially located within the arcuate groove and abuts against the arcuate groove.

[0022] In one possible implementation, the first push rod has an "L" shaped structure, the first push rod drive part includes a first bent part, the indicator includes an oblong hole, and the first bent part of the first push rod extends into the oblong hole to drive the indicator to rotate.

[0023] In one possible implementation, the second push rod drive unit includes a drive shaft that drives the contact shaft and a drive surface that drives the first drive member.

[0024] The contact shaft includes a strip-shaped drive hole or a strip-shaped drive groove; alternatively, the second push rod drive part includes a strip-shaped drive hole or a strip-shaped drive groove, and the contact shaft includes a drive shaft disposed within the strip-shaped drive hole or the strip-shaped drive groove.

[0025] The drive surface extends towards the auxiliary contact module and is perpendicular to the length direction of the second push rod.

[0026] In one possible implementation, the first push rod drive includes a plurality of teeth arranged in a strip, the indicator includes a plurality of gear teeth of a gear structure, the indicator is located on one side of the movement direction of the first push rod, the first push rod meshes with the indicator, and drives the indicator to rotate.

[0027] In one possible implementation, the indicator includes an indicator shaft, an arc-shaped indicator plate axially arranged around the indicator shaft, and a drive plate located on one side of the indicator shaft. The drive plate is perpendicular to the axial direction of the indicator shaft and connected to the indicator shaft. The drive plate has an oblong hole. The side of the arc-shaped indicator plate facing away from the indicator shaft is an arc-shaped indicator surface. The indicator shaft is radially connected to the arc-shaped indicator plate. At least one first limiting buckle is provided between the arc-shaped indicator plate and the indicator shaft. The length direction of the first limiting buckle is parallel to the axial direction of the indicator shaft. The mechanism housing is provided with a first shaft hole and an arc-shaped limiting groove surrounding the first shaft hole. The indicator shaft is rotatably installed with the first shaft hole. The first limiting buckle extends into the arc-shaped limiting groove to lock and restrict the indicator from moving axially. The arc-shaped edge of the arc-shaped indicator surface is provided with a protruding stop point to limit the angle of rotation of the indicator.

[0028] In one possible implementation, the indicator is a fan-shaped structure with an arc-shaped indicator surface on its top surface. A pivot hole is provided at one end facing away from the arc-shaped indicator surface, and a waist-shaped hole is provided at one corner near the arc-shaped indicator surface. The mechanism housing includes an indicator pivot and a limiting rib. The indicator pivot is rotatably mounted to the pivot hole, and the limiting rib restricts the indicator from moving axially.

[0029] In one possible implementation, the indicator includes a drive arm and a rotating plate located on the same plane of rotation, and an arc-shaped indicator plate bent and connected to the rotating plate. The drive arm and the rotating plate are arranged at an angle, and there is a pivot between the drive arm and the rotating plate. The side of the arc-shaped indicator plate facing away from the pivot is an arc-shaped indicator surface. The linear movement of the first push rod causes the first push rod drive part to engage with the drive arm, causing the indicator to rotate around the pivot.

[0030] In one possible implementation, the indicator shaft has an axially formed elastic notch, and two second limiting buckles extend radially to both sides from the end of the indicator shaft. The two second limiting buckles are located on both sides of the elastic notch, and the indicator shaft hole passes through the indicator shaft. The two second limiting buckles limit the second sector surface.

[0031] In one possible implementation, the mechanism housing includes a mechanism top cover and a mechanism base, and the circuit breaker body housing includes a circuit breaker middle cover and a circuit breaker base.

[0032] The mechanism base is connected to the intermediate base, the mechanism top cover is closed on the side of the mechanism base away from the intermediate base, the circuit breaker middle cover is closed and connected to the circuit breaker base, and the intermediate base is closed on the side of the circuit breaker middle cover away from the circuit breaker base.

[0033] In one possible implementation, the top cover of the mechanism is provided with an indicator window, and the indicator includes an arc-shaped indicator surface with an indicator mark. The arc-shaped indicator surface of the indicator is opposite to the indicator window. The base of the mechanism has an indicator base protruding on the side facing the top cover. The indicator is rotatably mounted on the indicator base. The rotation center of the indicator is parallel to the rotation center of the contact shaft and perpendicular to the movement direction of the first push rod and the second push rod.

[0034] In one possible implementation, the first push rod is a cylindrical rod-like structure or a plate-like rod-like structure.

[0035] This application installs the first push rod and the indicator inside the mechanism housing, and the second push rod inside the circuit breaker body housing. Compared with the integrated structure of the first and second push rods in the prior art, this allows for separate installation of the indicator structure, facilitating modular installation and replacement of the electric operating mechanism and the circuit breaker body. Furthermore, it enables the circuit breaker to have an isolation indication function. The connection between the indicator structure and the contact shaft 22 on which the moving contact is installed allows for more accurate and intuitive indication of the moving contact's position, avoiding the problem of discrepancies between the indicated state and the actual position of the moving contact caused by adhesion between the moving and stationary contacts, thus improving safety performance.

[0036] In addition, the design integrates the circuit breaker body cover and the electric operating mechanism base into an intermediate base, which reduces assembly steps and required materials, lowers material and labor costs, reduces assembly errors and gaps, and increases motion accuracy. At the same time, the integrated structure of the circuit breaker body cover and the electric operating mechanism base reduces the overall height of the circuit breaker, making installation easier.

[0037] In addition, the circuit breaker body also includes a circuit breaker faceplate, which is installed on the side of the circuit breaker body housing facing the electric operating mechanism. Without the electric operating mechanism, the circuit breaker body can be used as a switching element independently without affecting the operability and aesthetics of the circuit breaker body. The second push rod can independently indicate the working status of the circuit breaker. The circuit breaker faceplate includes a display through hole, which is used both for the first push rod and / or the second push rod to drive the first and second connecting parts to engage when the electric operating mechanism is installed, and for the second connecting part to serve as an indicator end to indicate the working status of the circuit breaker body when the electric operating mechanism is not installed.

[0038] In addition, the circuit breaker cover also includes a detachable cover that can be detachably installed with the display through hole. When the circuit breaker body is not in use, the detachable cover can serve as a dustproof cover.

[0039] In addition, the electric control component also includes a first micro switch for transmitting the status of the electric control mechanism, a second micro switch for transmitting the status of the circuit breaker, and a circuit board for receiving and sending signals. The first and second micro switches are connected to the circuit board, and the transmitted information is processed by the circuit board to determine whether the circuit breaker status is abnormal. This design can determine the circuit breaker's opening and closing status based on the status of the electric control mechanism, avoiding the electric control mechanism from incorrectly indicating the circuit breaker status and releasing erroneous signals, which could interfere with the operator's subsequent work, lead to serious decision-making errors, or even cause industrial accidents.

[0040] In addition, the circuit breaker body components also include an auxiliary contact module for transmitting electrical signals. The auxiliary contact module includes an auxiliary module housing and a third microswitch located within the housing. A second elastic element and a second push rod are located inside the auxiliary contact module. The second push rod is actually part of the auxiliary contact module and is used to drive the third microswitch to output an electrical signal that provides feedback on the circuit breaker status. By cooperating with the indicating structure within the electric operating mechanism, the circuit breaker status indication is achieved after the electric operating mechanism is installed. Without the electric operating mechanism, the auxiliary contact module can also independently indicate the circuit breaker status and output an electrical signal that provides feedback on the circuit breaker status.

[0041] Furthermore, the first push rod includes a first bent portion, and the indicator includes an oblong hole. The first bent portion of the first push rod extends into the oblong hole to drive the indicator to rotate. The first bent portion drives the top of the oblong hole, causing the indicator to rotate towards the closed position. After the indicator reaches the closed position, the first push rod may retract or fall due to gravity. The oblong hole structure provides space for retraction or fall to prevent the first push rod from retracting or falling and touching the indicator, ensuring the reliable indication position of the circuit breaker status.

[0042] Furthermore, the circuit breaker body housing and / or intermediate base and / or mechanism housing are provided with a second through hole. A funnel-shaped recessed groove is provided on the side of the second through hole facing the mechanism housing. The outer diameter of the funnel-shaped recessed groove is larger than the diameter of the second through hole, and the inner diameter of the funnel-shaped recessed groove is equal to the diameter of the second through hole. A first push rod passes through the second through hole and connects to the second push rod. Because the first push rod passes through multiple components sequentially and has a small diameter, the fitting accuracy requirement in the insertion direction of the first push rod is high. Since the installer's field of vision is limited during the installation of the push rod, the funnel-shaped recessed groove facilitates the installation of the first push rod.

[0043] In addition, the first connecting part of the first push rod includes an arc-shaped groove, and the second connecting part of the second push rod includes an arc-shaped protrusion; or, the first connecting part of the first push rod includes an arc-shaped protrusion, and the second connecting part of the second push rod includes an arc-shaped groove, with the arc-shaped protrusion at least partially located within the arc-shaped groove and abutting against the arc-shaped groove. The arc-shaped groove and the arc-shaped protrusion facilitate positioning and matching connection when the first and second push rods are installed, preventing slippage caused by incomplete contact. Attached Figure Description

[0044] Figure 1 This is an exploded view of the circuit breaker of this utility model;

[0045] Figure 2 This is a schematic diagram of the structure of the intermediate base of the circuit breaker of this utility model;

[0046] Figure 3 This is a sectional view of the circuit breaker of this utility model;

[0047] Figure 4 This is a schematic diagram of the connection structure of the circuit breaker indicator structure and auxiliary contact module of this utility model;

[0048] Figure 5 This is a schematic diagram of the structure of the first embodiment of the circuit breaker indicator of this utility model;

[0049] Figure 6 This is a schematic diagram of the structure of the first embodiment of the circuit breaker mechanism base of this utility model;

[0050] Figure 7 yes Figure 5 The main view;

[0051] Figure 8 This is a schematic diagram of the structure of the second embodiment of the circuit breaker mechanism base of this utility model;

[0052] Figure 9 This is a partial exploded view of a third embodiment of the circuit breaker of this utility model, including an indicating structure;

[0053] Figure 10 yes Figure 9 A schematic diagram of the connection structure of the middle contact shaft, auxiliary contact module, first push rod, second push rod and indicator;

[0054] Figure 11 yes Figure 10 Schematic diagram of the second push rod in the middle;

[0055] The reference numerals in the attached figures include:

[0056] Electric control mechanism 1;

[0057] First through hole 11; First micro switch 121; Second micro switch 122; Third micro switch 123; Mechanism top cover 13; Indicator window 131; Mechanism base 14;

[0058] Circuit breaker body 2;

[0059] Handle 21; Contact shaft 22; Auxiliary contact module 23; Circuit breaker middle cover 24; Circuit breaker base 25; Circuit breaker front cover 26;

[0060] First elastic element 221; Second elastic element 222;

[0061] Display through-hole 261; Remove cover 262;

[0062] Middle base 3;

[0063] 31; rectangular handle hole 32; rectangular clearance hole 33; mounting part 34; funnel-shaped recessed groove 35;

[0064] Indicator 41;

[0065] First protrusion 410; waist-shaped hole 411; indicator shaft 412; arc-shaped indicator plate 413; drive plate 414; arc-shaped indicator surface 415; first limit buckle 416; stop point 417; shaft hole 419; drive arm 424; rotating plate 425;

[0066] Limiting rib 4121; elastic notch 4122; second limiting buckle 4123; torsion spring retaining groove 4124; first pivot hole 4125; arc-shaped limiting groove 4126;

[0067] First push rod 42;

[0068] Fan-shaped groove 420; first push rod body 421; first push rod drive part 422; first connecting part 423;

[0069] Arc-shaped protrusion 4231; Arc-shaped groove 4232;

[0070] Second push rod 44;

[0071] Second push rod body 441; second connecting part 442; second push rod driving part 443; drive shaft 444; drive surface 445;

[0072] First driving component 45;

[0073] Push rod limiting part 4431; push rod mating surface 4432. Detailed Implementation

[0074] 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.

[0075] like Figure 1-6 As shown, the circuit breaker in this embodiment includes a circuit breaker body 2 and an electric operating mechanism 1 disposed above the circuit breaker body 2. The electric operating mechanism 1 includes a mechanism housing and an electric operating element disposed within the mechanism housing. The circuit breaker body 2 includes a circuit breaker body housing and a circuit breaker body element disposed within the circuit breaker body housing.

[0076] It should be noted that the circuit breaker body 2 is existing technology, such as... Figure 1As shown, the circuit breaker body components typically include a handle 21, an operating mechanism, a tripping mechanism, a rotatable contact shaft 22, at least one moving contact mounted on the contact shaft 22, and a stationary contact corresponding to the moving contact. The operating mechanism is connected to the contact shaft 22, and the handle 21 is connected to the operating mechanism and extends at least partially outside the circuit breaker body housing. When the circuit breaker is closed or opened, the handle 21 drives the contact shaft 22 to rotate via the operating mechanism, causing the moving contact to rotate with the contact shaft 22 and contact or separate from the stationary contact, thereby connecting and disconnecting the main circuit, realizing the closing and opening of the main circuit. When the circuit breaker trips (due to faults such as short circuit, overload, and leakage current in the main circuit), the tripping mechanism drives the operating mechanism to trip, and the operating mechanism drives the contact shaft 22 to rotate, causing the moving contact to rotate with the contact shaft 22 and separate from the stationary contact, disconnecting the main circuit and realizing the protection function. The tripping mechanism includes at least one of an overload protection mechanism, a short circuit protection mechanism, a thermal-magnetic protection mechanism, and a leakage current protection mechanism. Electrically operated components typically include an electric drive mechanism and a slider. The slider has a drive groove that fits onto the part of the handle 21 that extends out of the circuit breaker housing. The electric drive mechanism drives the slider to move linearly, causing the handle 21 to swing and achieve electric closing and opening. The electric drive mechanism is a motor or electromagnetic mechanism, etc. The electric drive mechanism drives the slider to move linearly through a turntable. The turntable is rotatable and has an eccentrically set turntable drive shaft for driving the slider. The electrically operated components also include a manual operating component, which is usually a rotating shaft fixedly connected to the turntable. By rotating the manual operating component, the turntable is rotated, driving the slider to move linearly and achieving manual closing and opening. This is prior art in the field and will not be described in detail here.

[0077] Preferred, such as Figure 1 As shown, the circuit breaker also includes an intermediate base 3 disposed between the electric operating mechanism 1 and the circuit breaker body 2. The electric operating mechanism 1 and the circuit breaker body 2 are fixedly installed through the intermediate base 3. Compared with the prior art, this design integrates the circuit breaker body 2 cover and the electric operating mechanism base into an integrated intermediate base 3, reducing assembly steps and required materials, lowering material and labor costs, reducing assembly errors and gaps, and increasing motion accuracy. At the same time, the integrated structure of the circuit breaker body 2 cover and the electric operating mechanism base reduces the overall height of the circuit breaker, facilitating installation.

[0078] Furthermore, such as Figure 2 As shown, the intermediate base 3 includes a shielding part 31 for shielding the circuit breaker operating surface. The shielding part 31 includes a rectangular handle hole 32 located in the middle of the shielding part 31 for the handle 21 to pass through, and a rectangular clearance hole 33 located at one end of the shielding part 31. The rectangular clearance hole 33 is located below the rectangular handle hole 32.

[0079] Furthermore, such as Figure 1 and Figure 2As shown, the shielding part 31 is fixed to the circuit breaker body 2 with screws. The shielding part 31 has a rectangular structure, and the middle base 3 also includes mounting parts 34 protruding at the four corners of the shielding part 31. The mounting parts 34 include screw through holes for screws to pass through, so that the middle base 3 can be installed to the circuit breaker body 2 with screws. Of course, in other embodiments, the shielding part 31 can also be installed and fixed to the circuit breaker body 2 by means of snap-fit.

[0080] Preferred, such as Figure 1 and Figure 3 As shown, the circuit breaker also includes an indicating structure disposed within the circuit breaker body housing and the mechanism housing. The indicating structure cooperates with the contact shaft 22 of the circuit breaker body 2 to indicate the status of the circuit breaker. The indicating structure includes an indicating element 41, a first push rod 42, at least one elastic element, and a second push rod 44, each disposed within the mechanism housing. At least one elastic element is connected to the indicating element 41 and / or the first push rod 42 and / or the second push rod 44. The second push rod 44 is disposed within the circuit breaker body housing and drives to cooperate with the contact shaft 22. The indicating element 41 and the first push rod 42 are disposed within the mechanism housing, and the first push rod 42 drives to cooperate with the indicating element 41. The first push rod 42 and the second push rod 44 are linearly movable and driven to cooperate. The indicating element 41 is rotatable. The first push rod 42 and the second push rod 44 are located on the same straight line. The first push rod 42 extends into the circuit breaker body housing and connects to the second push rod 44, or the second push rod 44 extends into the mechanism housing and connects to the first push rod 42.

[0081] When the contact shaft 22 rotates, it drives the moving contact to contact or separate from the stationary contact, which in turn drives the second push rod 44 to drive the first push rod 42. This causes the second push rod 44 and the first push rod 42 to move in a straight line, driving the indicator 41 to rotate to indicate the circuit breaker status.

[0082] By installing the first push rod 42 and the indicator 41 inside the mechanism housing, and the second push rod 44 inside the circuit breaker body housing, compared to the integrated structure of the first push rod 42 and the second push rod 44 in the prior art, the indicator structure is installed separately, which facilitates modular installation and replacement of the electric operating mechanism and the circuit breaker body. Moreover, it enables the circuit breaker to have an isolation indication function. The connection between the indicator structure and the contact shaft 22 on which the moving contact is installed can more accurately and intuitively indicate the position of the moving contact, avoiding the problem of the indicated state not matching the actual position of the moving contact due to the adhesion of the moving and stationary contacts, thus improving safety performance.

[0083] When the circuit breaker closes, opens, or trips, the contact shaft 22 drives the second push rod 44, which in turn drives the indicator 41 to rotate to the corresponding closing, opening, or tripping indication position via the first push rod 42. The elastic element then drives the indicator 41, the first push rod 42, and the second push rod 44 to reset. The indicating structure can indicate only the closing and opening states of the circuit breaker (without distinguishing between opening and tripping). Alternatively, in other embodiments, it can indicate all three states: closing, opening, and tripping. This is achieved by rotating the contact shaft 22 at different angles in different states, driving the second push rod 44 and the first push rod 42 to move different distances. The elastic element can be, but is not limited to, a torsion spring, tension spring, spring, or compression spring.

[0084] Specifically, in the first motion embodiment of the indicating structure, when the circuit breaker is closed, the contact shaft 22 rotates towards the closed position, driving the second push rod 44 to drive the first push rod 42, causing the second push rod 44 and the first push rod 42 to move upward in a straight line. The first push rod 42 drives the indicating element 41 to rotate towards the closed indicating position, causing the elastic element to store energy. When the circuit breaker is opened or tripped, the contact shaft 22 rotates towards the open or tripped position, causing the contact shaft 22 to separate from the second push rod 44. The elastic element releases energy, driving the indicating element 41 to rotate towards the open or tripped position, driving the first push rod 42 and the second push rod 44 to move downward in a straight line.

[0085] In the second motion embodiment of the indicating structure, when the circuit breaker is open, the contact shaft 22 rotates, driving the first push rod 42 and the second push rod 44 to move upward in a straight line, driving the indicating element 41 to rotate towards the open indicating position, so that the elastic element stores energy; when the circuit breaker is closed, the contact shaft 22 separates from the second push rod 44, and the elastic element drives the indicating element 41 to rotate towards the closed indicating position, driving the second push rod 44 and the first push rod 42 to move downward in a straight line. The specific action process is similar to that of the first motion embodiment and will not be described again.

[0086] Preferred, such as Figure 4 As shown, the first push rod 42 includes a first push rod body 421 slidably disposed on the mechanism housing and the intermediate base 3, a first push rod driving part 422 drivingly cooperating with the indicator 41, and a first connecting part 423 drivingly cooperating with the second push rod 44. The first push rod driving part 422 and the first connecting part 423 are located at both ends of the first push rod body 421.

[0087] The second push rod 44 includes a second push rod body 441 slidably disposed within the circuit breaker body 2, a second connecting part 442 drivingly cooperating with the first push rod 42, and a second push rod driving part 443 drivingly cooperating with the contact shaft 22. The second connecting part 442 and the second push rod driving part 443 are located at both ends of the second push rod body 441.

[0088] Furthermore, such as Figure 4As shown, this embodiment illustrates the driving structure between the first push rod 42 and the indicator 41. The first push rod 42 has an "L"-shaped structure, and the first push rod driving part 422 includes a first bending part. The indicator 41 includes an oblong hole 411. The first bending part of the first push rod 42 extends into the oblong hole 411 and drives the indicator 41 to rotate. The first bending part drives the top end of the oblong hole 411, causing the indicator 41 to rotate towards the closed position. After the indicator 41 reaches the closed position, the first push rod 42 may retract or fall due to gravity. The oblong hole 411 structure provides space for retraction or fall to prevent the first push rod 42 from retracting or falling and touching the indicator 41, ensuring the reliable indication position of the circuit breaker status.

[0089] Furthermore, the following are two embodiments of instruction 41 of this application.

[0090] like Figure 5 The image shows a first embodiment of the indicator 41.

[0091] The indicator 41 includes an indicator shaft 412, an arc-shaped indicator plate 413 axially arranged around the indicator shaft 412, and a drive plate 414 located on one side of the indicator shaft 412. The drive plate 414 is perpendicular to the axial direction of the indicator shaft 412 and connected to the indicator shaft 412, and is perpendicularly connected to the arc-shaped indicator plate 413. An oblong hole 411 is provided on the drive plate 414. The side of the arc-shaped indicator plate 413 facing away from the indicator shaft 412 is an arc-shaped indicator surface 415. The arc-shaped indicator surface 415 includes an indicator mark (at least one of a closing mark, a closing mark, and a trip mark; the indicator mark can be one or more combinations of colors, text, graphics, etc.). The first end of the indicator shaft 412 is radially connected to the arc-shaped indicator plate 413. At least one first limiting buckle 416 is provided between the arc-shaped indicator plate 413 and the indicator shaft 412. The length direction of the first limiting buckle 416 is parallel to the axial direction of the indicator shaft 412. The mechanism housing is provided with a first shaft hole 4125 and an arc-shaped limiting groove 4126 surrounding the first shaft hole 4125. Figure 8 As shown), the indicator shaft 412 is rotatably mounted to the first shaft hole 4125. The first limiting buckle 416 extends into the arc-shaped limiting groove 4126 to lock and restrict the axial movement of the indicator 41. The first limiting buckle 416 is integrally formed with the arc-shaped indicator plate 413, and a buckle barb is provided at one end near the second end of the indicator shaft 412. The indicator 41 is rotatably mounted on the housing of the electric operating mechanism 1 via the indicator shaft 412. The arc-shaped edge of the arc-shaped indicator surface 415 is provided with a raised stop point 417, which restricts the rotation angle of the indicator 41. A torsion spring stop groove 4124 (as shown) is provided along the axial direction of the indicator shaft 412 at the connection between the indicator shaft 412 and the arc-shaped indicator plate 413. Figure 7As shown), it is used to install torsion springs. When the indicator 41 is rotated to the closing indicator position, the opening indicator position, and the tripping indicator position, different indicator marks are opposite to the indicator window 131, thereby indicating the closing, opening, and tripping status of the circuit breaker.

[0092] like Figure 4 The image shows a second embodiment of the indicator 41.

[0093] The indicator 41 has a fan-shaped structure with an arc-shaped indicator surface 415 on its top surface. A pivot hole 419 is provided at one end facing away from the arc-shaped indicator surface 415. A first fan-shaped surface and a second fan-shaped surface are perpendicularly connected to the arc-shaped indicator surface 415. A waist-shaped hole 411 is provided near one corner of the arc-shaped indicator surface 415. A fan-shaped groove 420 is provided on one side of the waist-shaped hole 411. The fan-shaped groove 420 is located on the first fan-shaped surface. A first protrusion 410 is provided between the fan-shaped groove 420 and the waist-shaped hole 411. The pivot hole 419 is located at the position of the fan-shaped groove 420. In this embodiment, the first elastic element 221 is preferably a torsion spring. The spring includes two connecting arms. One end (defined as the head end) of the indicator shaft 412 passes through the shaft hole 419, and the other end (defined as the tail end) is connected to the first elastic member 221 within the fan-shaped groove 420. The first elastic member 221 is at least partially located within the fan-shaped groove 420. The first elastic member 221 is sleeved on the indicator shaft 412. A limiting notch is provided at the tail end of the indicator shaft 412. One connecting arm of the first elastic member 221 is limited within the limiting notch, and the other connecting arm cooperates with the first protrusion 410 of the fan-shaped groove 420 to drive the first elastic member 221 to undergo elastic deformation. The fan-shaped groove 420 is used to accommodate and limit the first elastic member 221, making reasonable use of the internal space of the circuit breaker and reducing the size of the circuit breaker.

[0094] In this embodiment, as Figure 6 As shown, the housing of the mechanism includes an indicator shaft 412 and a limiting rib 4121. The indicator shaft 412 is rotatably mounted to the shaft hole 419. The indicator shaft 412 has an elastic notch 4122 along the axial direction. Two second limiting buckles 4123 extend radially to both sides from the end of the indicator shaft 412. The two second limiting buckles 4123 are located on both sides of the elastic notch 4122. The shaft hole 419 of the indicator 41 passes through the indicator shaft 412. The two second limiting buckles 4123 limit the second sector surface to restrict the axial movement of the indicator 41. When the indicator 41 and the indicator shaft 412 are installed, the elastic notch 4122 causes the indicator shaft 412 to deform, which is beneficial to the installation of the indicator 41. The limiting rib 4121 is used to limit the rotation angle of the indicator 41.

[0095] Furthermore, in other preferred embodiments, the first push rod 42 does not have a first bend, and the indicator 41 does not have a waist-shaped hole 411.

[0096] The first push rod 42 and the indicator 41 are driven by a gear structure. The first push rod drive part 422 includes multiple teeth arranged in a strip shape, and the indicator 41 includes multiple gear teeth of the gear structure. The indicator 41 is located on one side of the moving direction of the first push rod 42. The first push rod 42 meshes with the indicator 41, driving the indicator 41 to rotate and switching the state position indication of the indicator 41. The coordination accuracy is high, so that the indicator 41 can more accurately indicate the closing, opening, and tripping status of the circuit breaker.

[0097] Alternatively, the indicator 41 can be slidably driven with the first push rod 42, wherein the surface of the indicator 41 used to drive the first push rod 42 is an inclined surface, and one end of the first push rod 42 abuts against the inclined surface of the indicator 41, driving the indicator 41 to rotate.

[0098] Furthermore, such as Figure 9 and Figure 10 In the third embodiment shown, in another embodiment where the first push rod 42 and the indicator 41 are driven together, the indicator 41 includes a drive arm 424 and a rotating plate 425 located on the same rotation plane, and an arc-shaped indicator plate 413 bent and connected to the rotating plate. The drive arm 424 and the rotating plate 425 are arranged at an angle, and there is a rotating shaft between the drive arm 424 and the rotating plate 425. The side of the arc-shaped indicator plate 413 facing away from the rotating shaft is an arc-shaped indicator surface 415. The linear movement of the first push rod 42 causes the first push rod drive part 422 to drive together with the drive arm 424, causing the indicator 41 to rotate around the rotating shaft and change the position of the arc-shaped indicator plate 413.

[0099] Furthermore, the first push rod 42 can be as follows: Figure 4 The cylindrical rod-like structure shown can also be as follows: Figure 9 The sheet-like rod-like structure shown.

[0100] Furthermore, such as Figure 3 and Figure 4 As shown, the first connecting part 423 of the first push rod 42 passes through the circuit breaker body housing and / or mechanism housing and the intermediate base 3 in sequence and drives and engages with the second connecting part 442 of the second push rod 44.

[0101] Furthermore, the circuit breaker body housing and / or intermediate base 3 are provided with a second through hole, and a funnel-shaped recessed groove 35 is provided on one side of the second through hole. The outer diameter of the funnel-shaped recessed groove 35 is larger than the diameter of the second through hole, and the inner diameter of the funnel-shaped recessed groove 35 is equal to the diameter of the second through hole. The first push rod 42 passes through the funnel-shaped recessed groove 35, passes through the second through hole, and connects with the second push rod 44.

[0102] Specifically, in this embodiment, as follows: Figure 2 As shown, the intermediate base 3 is provided with a second through hole, and a funnel-shaped recessed groove 35 is provided on the side of the second through hole facing the housing of the mechanism, as shown. Figure 6 As shown, the bottom of the mechanism housing includes a positioning groove. The bottom of the positioning groove is thinner than the thickness of the mechanism housing, forming an axial thin wall that facilitates the passage of the first push rod. The bottom of the positioning groove includes a first through hole 11. The first connecting part 423 of the first push rod 42 passes through the first through hole 11 and the second through hole in sequence, and connects with the second connecting part 442 of the second push rod 44. Since the first push rod 42 passes through multiple components in sequence and has a small diameter, the fitting accuracy requirement in the insertion direction of the first push rod 42 is high. Due to the limited field of vision of the installer during the installation of the push rod, the positioning groove and the funnel-shaped recessed groove 35 of the intermediate base 3 facilitate the installation of the first push rod 42.

[0103] Furthermore, the first push rod 42 abuts against the second push rod 44, as follows: Figure 4 As shown, the first connecting portion 423 includes an arc-shaped protrusion 4231, and the second connecting portion 442 includes an arc-shaped groove 4232. Alternatively, the first connecting portion 423 includes an arc-shaped groove 4232, and the second connecting portion 442 includes an arc-shaped protrusion 4231. The arc-shaped protrusion 4231 is at least partially located within the arc-shaped groove 4232 and abuts against it. This facilitates positioning and matching during the installation of the first push rod 42 and the second push rod 44, preventing slippage due to incomplete contact. Of course, the first connecting portion 423 and the second connecting portion 442 can also be other structures that cooperate for installation, and the protrusion and groove of the first connecting portion 423 and the second connecting portion 442 do not have to be arc-shaped. For example, the first push rod 42 and the second push rod 44 can be plugged into each other. One end of the first push rod 42, which extends into the circuit breaker body housing, can be inserted into the connecting groove at one end of the second push rod 44 for fixed connection. Alternatively, the first push rod 42 can be integrally formed with the second push rod 44.

[0104] Preferred, such as Figure 4 As shown, at least one elastic element includes a first elastic element 221 and a second elastic element 222. The first elastic element 221 is located inside the mechanism housing and connected to the indicator 41, driving the indicator 41 to rotate. The second elastic element 222 is located inside the circuit breaker body housing and connected to the second push rod 44, driving the second push rod 44 to move linearly. In this embodiment, as... Figure 4 As shown, the first elastic element 221 is a torsion spring that is torsionally connected to the indicator 41, and the second elastic element 222 is a compression spring sleeved on the second push rod body 441. Of course, in other embodiments, the second elastic element 222 may not be provided.

[0105] Preferred, such as Figure 3 and Figure 4As shown, the circuit breaker body component also includes an auxiliary contact module 23 for transmitting electrical signals. The auxiliary contact module 23 is disposed inside the circuit breaker body housing and can transmit electrical signals indicating the circuit breaker's open and closed states. The auxiliary contact module 23 includes an auxiliary contact module housing and a third micro switch 123 disposed inside the auxiliary contact module housing. A second push rod 44 is located inside the auxiliary contact module 23. The linear movement of the second push rod 44 can drive the third micro switch 123 to switch states to output an electrical signal indicating the circuit breaker's state. That is, the second push rod 44 is actually part of the auxiliary contact module 23. By cooperating with the indicating structure inside the electric operating mechanism 1 with the second push rod 44, the circuit breaker's state indication after the electric operating mechanism 1 is installed is realized. The second push rod 44's second push rod drive part 443 extends out of the auxiliary contact module housing and cooperates with the contact shaft 22. The second push rod 44's second connecting part 442 extends out of the auxiliary contact module housing and connects with the first push rod 42. Alternatively, the first push rod 42 can partially extend into the auxiliary contact module housing and connect with the second push rod 44. The second elastic element 222 is located inside the auxiliary contact module housing. The second elastic element 222 is connected to the second push rod 44 to drive the second push rod 44 to reset. By setting the second elastic element 222 to act on the second push rod 44, the sensitivity of the indicator structure reset can be enhanced.

[0106] Furthermore, the third micro switch 123 is located on one side of the second push rod 44, and a micro switch driving part is provided on one side wall of the second push rod 44. The second push rod 44 moves linearly and drives the third micro switch 123 to switch states through the micro switch driving part. In a preferred embodiment of this application, the micro switch driving part is a driving inclined surface that protrudes towards the third micro switch 123.

[0107] In other possible implementations, the auxiliary contact module 23 can also be equipped with two microswitches to transmit electrical signals indicating the operating status of the circuit breaker.

[0108] The second push rod 44 is installed inside the auxiliary contact module housing, and the auxiliary contact module 23 is modularly installed inside the circuit breaker body housing for easy installation and replacement.

[0109] like Figures 9-11As shown, in another embodiment of the indicating structure, the second push rod 44 is located outside the auxiliary contact module 23. The auxiliary contact module 23 includes a first driving member 45. The contact shaft 22 is driven to cooperate with the second push rod 44. The second push rod 44 is driven to cooperate with the first driving member 45 to switch the state of the third micro switch 123. Specifically, at least one elastic member includes a second elastic member 222 located inside the auxiliary contact module 23. The auxiliary contact module 23 includes an auxiliary contact module housing and a third micro switch 123 disposed inside the auxiliary contact module housing, as well as a first driving member 45 disposed on one side of the third micro switch 123. The first driving member 45 is connected to the third micro switch 123 to drive the third micro switch 123 to switch states. The second elastic member 222 is connected to the first driving member 45 to drive the first driving member 45 to reset. One end of the first driving member 45 extends out of the auxiliary contact module housing and is connected to the second push rod 44, while the other end is located inside the auxiliary contact module housing. The side wall of the first driving member 45 is provided with a driving inclined surface protruding towards the third micro switch 123. When the first driving member 45 moves linearly, the driving inclined surface can drive the third micro switch 123 to switch states. In a preferred embodiment of this application, the length direction of the second push rod 44 is parallel to the length direction of the first driving member 45.

[0110] like Figures 9-11 As shown, the second push rod drive part 443 of the second push rod 44 is driven to cooperate with the contact shaft 22.

[0111] The second push rod drive unit 443 includes a drive shaft 444 that drives the contact shaft 22. The contact shaft 22 includes a strip-shaped drive hole or a strip-shaped drive groove. Alternatively, the second push rod drive unit 443 includes a strip-shaped drive hole or a strip-shaped drive groove, and the contact shaft 22 includes the drive shaft 444. The drive shaft 444 is disposed within the strip-shaped drive hole or the strip-shaped drive groove. The strip-shaped structure of the strip-shaped drive hole or the strip-shaped drive groove ensures that when the contact shaft 22 is displaced in the horizontal direction, the third push rod 45 is not displaced in the horizontal direction, but only moves up and down in the length direction.

[0112] The second push rod drive part 443 also includes a drive surface 445 extending toward the auxiliary contact module 23. The drive surface 445 drives and cooperates with the first drive member 45. In a preferred embodiment of this application, the drive surface 445 is a plane and is perpendicular to the length direction of the second push rod 44.

[0113] Preferred, such as Figure 9 As shown, the circuit breaker body 2 also includes a circuit breaker face cover 26, which is installed on the side of the circuit breaker body housing facing the electric operating mechanism 1. Without the electric operating mechanism, the circuit breaker body 2 can be used as a switch element alone without affecting the operability and aesthetics of the circuit breaker body 2. The second push rod 44 can indicate the working status of the circuit breaker separately.

[0114] Specifically, such as Figure 9 As shown, the circuit breaker cover 26 includes a display through hole 261. The display through hole 261 is used both to drive the first connecting part 423 and the second connecting part 442 to engage when the electric operating mechanism 1 is set, and to use the second connecting part 442 as an indicator end to indicate the working status of the circuit breaker body 2 when the electric operating mechanism 1 is not set.

[0115] Specifically, the side of the second connecting part 442 facing the electric operating mechanism 1 is marked with a color (such as green or red, and an indicator sticker can be affixed). The operating status of the circuit breaker is indicated by the second connecting part 442 extending into or out of the display through hole 261. Of course, a rotating third indicator can also be provided inside the circuit breaker body housing to cooperate with the second connecting part 442 of the second push rod 44.

[0116] Specifically, such as Figure 9 As shown, the circuit breaker cover 26 also includes a disassembly cover 262 that is detachably installed with the display through hole 261. When the electric operating mechanism 1 is not in use, the disassembly cover 262 can play a role in preventing dust. In this embodiment, the disassembly cover 262 is snapped to the display through hole 261.

[0117] In particular, in this embodiment, the force of the first elastic element 221 is greater than the force of the second elastic element 222, so that the first push rod 42 and the second push rod 44 are always in contact.

[0118] Furthermore, such as Figure 4 As shown, the second push rod drive unit 443 also includes a push rod limiting part 4431, which is located outside the auxiliary contact module housing. Specifically, the push rod limiting part 4431 bends and protrudes axially from the second push rod 44 to abut against the auxiliary contact module housing, thus restricting the second push rod drive unit 443 from entering the auxiliary contact module housing.

[0119] Preferably, when the circuit breaker is closed, opened, or tripped, the contact shaft 22 drives the moving contact to rotate while simultaneously driving the second push rod 44 to drive the first push rod 42 to move linearly, causing the first push rod 42 to drive the indicator 41 to rotate and indicate the closed, opened, or tripped status of the circuit breaker. Specifically, as shown in the example... Figure 3As shown, the contact shaft 22 has a radially protruding shaft drive part, and the second push rod drive part 443 includes a push rod mating surface 4432. The shaft drive part and the push rod mating surface 4432 drive each other, and the contact shaft 22 drives the second push rod 44 to move linearly through the shaft drive part. When the circuit breaker is closed, the contact shaft 22, through the shaft drive, acts on the push rod mating surface 4432 of the second push rod 44, driving the second push rod 44 to move upward (the second push rod 44 and the auxiliary contact module housing compress the second elastic element 222, causing the second elastic element 222 to store energy). This causes the second push rod 44 to push the first push rod 42 upward, and the first push rod 42 drives the indicator 41 to rotate to the closing indication position. The indicator 41 then drives the first elastic element 221 to store energy. When the circuit breaker is opened or tripped, the contact shaft 22 causes the shaft drive to separate from the push rod mating surface 4432, causing the first elastic element 221 and the second elastic element 222 to release energy. The first elastic element 221 drives the indicator 41 to rotate, and the indicator 41 drives the first push rod 42 to move downward. The second elastic element 222 drives the second push rod 44 to move downward, thereby causing the indicator 41 to rotate from the closing indication position to the opening indication position or the tripping indication position.

[0120] By connecting the indicating structure to the contact shaft 22 on which the moving contact is mounted, the position of the moving contact can be indicated more accurately and intuitively, avoiding the problem that the indicated state does not match the actual position of the moving contact due to the adhesion between the moving and stationary contacts.

[0121] Preferred, such as Figure 6As shown, the electric operating element also includes a micro switch assembly. The micro switch assembly includes a first micro switch 121 for transmitting the state of the electric operating mechanism 1, a second micro switch 122 for transmitting the state of the circuit breaker, and a circuit board for receiving and sending signals. When the electric operating mechanism 1 drives the handle 21 of the circuit breaker body 2 to perform opening or closing operations, it simultaneously drives the first micro switch 121 to switch states to indicate the state of the electric operating mechanism 1. The second micro switch 122 is driven to switch states by an indicator structure. The indicator structure cooperates with the contact shaft 22 of the circuit breaker body 2 to indicate the current position of the moving contact and the state of the circuit breaker. The second micro switch 122 is driven by an indicator 41 or a first push rod 42. When the indicator 41 or the first push rod 42 moves, it drives the second micro switch 122 to switch states. In this embodiment, when the indicator 41 rotates to indicate the state of the circuit breaker, it drives the second micro switch 122 to switch states. The first microswitch 121 and the second microswitch 122 are connected to the circuit board. The transmitted information is processed by the circuit board to determine whether the circuit breaker status is abnormal. For example, if the first microswitch 121 indicates that it is in the open state, while the second microswitch 122 indicates that it is in the closed state, it means that the circuit breaker status is abnormal, and there may be moving contact adhesion or other faults. The circuit board can be connected to the central display screen to transmit the status of the electric operating mechanism 1 and / or the circuit breaker status to the central display screen. Alternatively, warning elements such as running lights or buzzers can be installed on the circuit board to indicate whether the circuit breaker is in an abnormal state. This design can determine the open and closed status of the circuit breaker based on the status of the electric operating mechanism 1, avoiding the electric operating mechanism 1 from failing to correctly indicate the circuit breaker status and releasing erroneous signals, which would interfere with the subsequent work of the operator, resulting in serious decision-making errors or even causing industrial accidents.

[0122] Furthermore, the first micro switch 121 and the second micro switch 122 are disposed on the side of the mechanism base 14 facing the mechanism top cover 13. While the electric drive mechanism drives the turntable to rotate and move the slider linearly, the turntable also drives the first micro switch 121 to switch states. The first micro switch 121 includes a first driven part, and the side of the turntable drives and cooperates with the first driven part. While the electric drive mechanism drives the turntable to rotate and move the slider linearly, the turntable also drives the first driven part to switch the state of the first micro switch 121. The second micro switch 122 includes a second driven part, and the indicator 41 drives and cooperates with the second driven part. When the indicator 41 rotates to indicate the circuit breaker state, it drives the second driven part to switch the state of the second micro switch 122. The force directions of the first driven part and the second driven part are perpendicular.

[0123] Furthermore, the first and second driven parts are drive levers or protruding drive buttons.

[0124] like Figure 1As shown, the circuit breaker body housing includes a circuit breaker middle cover 24 and a circuit breaker base 25. The circuit breaker middle cover 24 is closed and connected to the circuit breaker base 25. The intermediate base 3 is closed and connected to the side of the circuit breaker middle cover 24 away from the circuit breaker base 25. The intermediate base 3 and the circuit breaker middle cover 24, and the circuit breaker middle cover 24 and the circuit breaker base 25 are connected by means of snap-fit, screw connection or riveting.

[0125] like Figure 1 As shown, the mechanism housing includes a mechanism top cover 13 and a mechanism base 14. The mechanism top cover 13 is fitted onto the side of the mechanism base 14 away from the intermediate base 3. The intermediate base 3 and the mechanism base 14, and the mechanism top cover 13 and the mechanism base 14 are connected by means of snap-fit, screw connection, or riveting. The mechanism top cover 13 is provided with an indicator window 131. The arc-shaped indicator surface 415 of the indicator 41 is opposite to the indicator window 131. The side of the mechanism base 14 facing the mechanism top cover 13 has a raised indicator base. The indicator 41 is rotatably mounted on the indicator base. In the first embodiment of the indicator 41, a pivot hole 419 is opened on the indicator base, and the indicator pivot 412 of the indicator 41 is rotatably mounted in the pivot hole 419. In the second embodiment of the indicator 41, the indicator base is provided with an indicator pivot 412 (e.g., Figure 3 As shown), the pivot hole 419 on the indicator 41 is rotatably mounted on the indicator pivot 412. The axis of the indicator pivot 412 is the rotation center of the indicator 41, parallel to the rotation center of the contact pivot 22, and perpendicular to the moving direction of the first push rod 42 and the second push rod 44.

[0126] 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.

[0127] 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 circuit breaker, comprising a circuit breaker body (2) and an electric operating mechanism (1) disposed above the circuit breaker body (2), and an indicating structure, wherein the circuit breaker body (2) comprises a circuit breaker body housing and a handle (21) disposed within the circuit breaker body housing, an operating mechanism, a rotatably disposed contact shaft (22), at least one moving contact disposed on the contact shaft (22), and a stationary contact corresponding to the moving contact, the operating mechanism being connected to the contact shaft (22), the handle (21) being connected to the operating mechanism and partially extending outside the circuit breaker body housing, the electric operating mechanism (1) comprising a mechanism housing, characterized in that: The indicating structure includes an indicating element (41), a first push rod (42), a second push rod (44), and at least one elastic element. The at least one elastic element is connected to the indicating element (41) and / or the first push rod (42) and / or the second push rod (44). The second push rod (44) is disposed within the circuit breaker body housing and drives the contact shaft (22). The indicating element (41) and the first push rod (42) are disposed within the mechanism housing. The first push rod (42) and the second push rod (44) move linearly. The indicator (41) is rotatably configured, and the first push rod (42) extends into the circuit breaker body housing and connects with the second push rod (44), or the second push rod (44) extends into the mechanism housing and connects with the first push rod (42). When the contact shaft (22) rotates, it can drive the second push rod (44) to drive the first push rod (42) when the moving contact contacts or separates from the stationary contact. This causes the second push rod (44) and the first push rod (42) to move in a straight line, driving the indicator (41) to rotate to indicate the circuit breaker status.

2. The circuit breaker according to claim 1, characterized in that, It also includes an intermediate base (3) disposed between the electric operating mechanism (1) and the circuit breaker body (2), and the electric operating mechanism (1) and the circuit breaker body (2) are fixedly installed through the intermediate base (3).

3. The circuit breaker according to claim 1, characterized in that, The circuit breaker body (2) includes a circuit breaker faceplate (26) which is mounted on the side of the circuit breaker body housing facing the electric operating mechanism (1). The circuit breaker faceplate (26) includes a display through hole (261) for a first push rod (42) and / or a second push rod (44) to pass through.

4. The circuit breaker according to claim 3, characterized in that, The circuit breaker faceplate (26) also includes a removable cover (262) that is removably mounted to the display through hole (261).

5. The circuit breaker according to claim 2, characterized in that, The intermediate base (3) is a rectangular structure, including a shielding part (31) for shielding the circuit breaker operating surface and mounting parts (34) protruding at the four corners of the shielding part (31). The shielding part (31) includes a rectangular handle hole (32) in the middle of the shielding part (31) for the handle (21) to pass through, and a rectangular clearance hole (33) at one end of the shielding part (31).

6. The circuit breaker according to claim 1, characterized in that, The electric operating mechanism (1) further includes a first micro switch (121), a second micro switch (122) and a circuit board disposed in the mechanism housing. The first micro switch (121) and the second micro switch (122) are connected to the circuit board. When the handle (21) of the circuit breaker body (2) is driven, the electric operating mechanism (1) drives the first micro switch (121) to switch states; when the indicator (41) or the first push rod (42) moves, the second micro switch (122) is driven to switch states.

7. The circuit breaker according to claim 6, characterized in that, The electric operating mechanism (1) includes an electric drive mechanism and a slider disposed in the housing of the mechanism. The electric drive mechanism drives the slider to move linearly through a turntable, causing the handle (21) to swing. The first micro switch (121) includes a first driven part. The side of the turntable drives and cooperates with the first driven part. While the electric drive mechanism drives the turntable to rotate and causes the slider to move linearly, the turntable also drives the first driven part to switch the state of the first micro switch (121). The second micro switch (122) includes a second driven part. The indicator (41) drives and cooperates with the second driven part. When the indicator (41) rotates to indicate the state of the circuit breaker, it drives the second driven part to switch the state of the second micro switch (122). The force directions of the first driven part and the second driven part are perpendicular.

8. The circuit breaker according to claim 1, characterized in that, At least one elastic element includes a first elastic element (221) and a second elastic element (222). The first elastic element (221) is located inside the mechanism housing and connected to the indicator (41) to drive the indicator (41) to rotate. The second elastic element (222) is located inside the circuit breaker body housing and connected to the second push rod (44) to drive the second push rod (44) to move linearly.

9. The circuit breaker according to claim 1, characterized in that, At least one elastic element includes a second elastic element (222), and an auxiliary contact module (23) is also provided inside the circuit breaker body housing. The auxiliary contact module (23) includes an auxiliary contact module housing and a third micro switch (123) disposed inside the auxiliary contact module housing. The second elastic element (222) and the second push rod (44) are located inside the auxiliary contact module housing. The second elastic element (222) is connected to the second push rod (44) to drive the second push rod (44) to reset. The second push rod (44) is connected to the third micro switch (123) to drive the third micro switch (123) to switch states. One end of the second push rod (44) extends out of the auxiliary contact module housing and is connected to the first push rod (42). The other end of the second push rod (44) extends out of the auxiliary contact module housing and cooperates with the contact shaft (22).

10. The circuit breaker according to claim 1, characterized in that, The circuit breaker body housing is also provided with an auxiliary contact module (23). The auxiliary contact module (23) includes an auxiliary contact module housing and a third micro switch (123) disposed in the auxiliary contact module housing, and a first driving member (45) disposed on one side of the third micro switch (123). At least one elastic member includes a second elastic member (222) located in the auxiliary contact module housing. The first driving member (45) is connected to the third micro switch (123) to drive the third micro switch (123) to switch states. The second elastic member (222) is connected to the first driving member (45) to drive the first driving member (45) to reset. One end of the first driving member (45) extends out of the auxiliary contact module housing and cooperates with the second push rod (44), and the other end is located in the auxiliary contact module housing.

11. The circuit breaker according to claim 2, characterized in that, The circuit breaker body housing and / or intermediate base (3) are provided with a second through hole. The second through hole has a funnel-shaped recessed groove (35) on the side facing the mechanism housing. The outer diameter of the funnel-shaped recessed groove (35) is larger than the diameter of the second through hole, and the inner diameter of the funnel-shaped recessed groove (35) is equal to the diameter of the second through hole. The first push rod (42) passes through the second through hole and extends into the circuit breaker body housing to connect with the second push rod (44).

12. The circuit breaker according to claim 1, characterized in that, The first push rod (42) includes a first push rod body (421), a first push rod drive part (422) that drives and cooperates with the indicator (41), and a first connecting part (423) that drives and cooperates with the second push rod (44). The first push rod drive part (422) and the first connecting part (423) are located at both ends of the first push rod body (421). The second push rod (44) includes a second push rod body (441), a second connecting part (442) that drives and cooperates with the first push rod (42), and a second push rod driving part (443) that drives and cooperates with the contact shaft (22). The second connecting part (442) and the second push rod driving part (443) are located at both ends of the second push rod body (441), and the second connecting part (442) drives and cooperates with the first connecting part (423).

13. The circuit breaker according to claim 12, characterized in that, The first connecting portion (423) includes an arc-shaped protrusion (4231), and the second connecting portion (442) includes an arc-shaped groove (4232). Alternatively, the first connecting portion (423) includes an arc-shaped groove (4232), and the second connecting portion (442) includes an arc-shaped protrusion (4231). The arc-shaped protrusion (4231) is at least partially located within the arc-shaped groove (4232) and abuts against the arc-shaped groove (4232).

14. The circuit breaker according to claim 12, characterized in that, The first push rod (42) has an "L" shaped structure. The first push rod driving part (422) includes a first bending part. The indicator (41) includes a waist-shaped hole (411) or a driving arm (424). The first bending part of the first push rod (42) extends into the waist-shaped hole (411) to drive the indicator (41) to rotate, or the first bending part of the first push rod (42) abuts against the driving arm (424) to drive the indicator (41) to rotate.

15. The circuit breaker according to claim 12, characterized in that, The second push rod drive unit (443) includes a drive shaft (444) that drives and cooperates with the contact shaft (22) and a drive surface (445) that drives and cooperates with the first drive member (45). The contact shaft (22) includes a strip-shaped drive hole or a strip-shaped drive groove; or, the second push rod drive part (443) includes a strip-shaped drive hole or a strip-shaped drive groove, and the contact shaft (22) includes a drive shaft (444), which is disposed within the strip-shaped drive hole or the strip-shaped drive groove. The driving surface (445) extends toward the auxiliary contact module (23) and is perpendicular to the length direction of the second push rod (44).

16. The circuit breaker according to claim 12, characterized in that, The first push rod drive unit (422) includes a plurality of teeth arranged in a strip shape, and the indicator (41) includes a plurality of gear teeth of a gear structure. The indicator (41) is located on one side of the moving direction of the first push rod (42). The first push rod (42) meshes with the indicator (41) and drives the indicator (41) to rotate.

17. The circuit breaker according to claim 1, characterized in that, The indicator (41) includes an indicator shaft (412), an arc-shaped indicator plate (413) axially arranged around the indicator shaft (412), and a drive plate (414) located on one side of the indicator shaft (412). The drive plate (414) is perpendicular to the axial direction of the indicator shaft (412) and connected to the indicator shaft (412). The drive plate (414) is provided with an oblong hole (411). The side of the arc-shaped indicator plate (413) facing away from the indicator shaft (412) is an arc-shaped indicator surface (415). The indicator shaft (412) is radially connected to the arc-shaped indicator plate (413). The arc-shaped indicator plate (413) and the indicator shaft (412) are connected to each other. 2) At least one first limiting buckle (416) is provided at intervals between them. The length direction of the first limiting buckle (416) is parallel to the axial direction of the indicator shaft (412). The housing of the mechanism is provided with a first shaft hole (4125) and an arc-shaped limiting groove (4126) surrounding the first shaft hole (4125). The indicator shaft (412) is rotatably installed with the first shaft hole (4125). The first limiting buckle (416) extends into the arc-shaped limiting groove (4126) to lock and restrict the indicator (41) from moving along the axial direction. The arc-shaped edge of the arc-shaped indicator surface (415) is provided with a protruding stop point (417) to restrict the angle of rotation of the indicator (41).

18. The circuit breaker according to claim 1, characterized in that, The indicator (41) is a fan-shaped structure with an arc-shaped indicator surface (415) on its top surface. A pivot hole (419) is provided at one end facing away from the arc-shaped indicator surface (415). A first fan-shaped surface and a second fan-shaped surface are perpendicularly connected to the arc-shaped indicator surface (415). A waist-shaped hole (411) is opened at one corner near the arc-shaped indicator surface (415). The housing of the mechanism includes an indicator pivot (412) and a limiting rib (4121). The indicator pivot (412) is rotatably installed with the pivot hole (419), and the limiting rib (4121) restricts the indicator (41) from moving axially.

19. The circuit breaker according to claim 12, characterized in that, The indicator (41) includes a drive arm (424) and a rotating plate (425) located on the same rotation plane, and an arc-shaped indicator plate (413) bent and connected to the rotating plate (425). The drive arm (424) and the rotating plate (425) are arranged at an angle. The drive arm (424) and the rotating plate (425) are connected to a rotating shaft. The side of the arc-shaped indicator plate (413) facing away from the rotating shaft is an arc-shaped indicator surface (415). The first push rod (42) moves linearly to drive the first push rod drive part (422) to cooperate with the drive arm (424), so that the indicator (41) rotates around the rotating shaft.

20. The circuit breaker according to claim 18, characterized in that, The indicator shaft (412) has an elastic notch (4122) along the axial direction. The end of the indicator shaft (412) extends radially to both sides with two second limiting buckles (4123). The two second limiting buckles (4123) are located on both sides of the elastic notch (4122). The shaft hole (419) of the indicator (41) passes through the indicator shaft (412), and the two second limiting buckles (4123) limit the second sector surface.

21. The circuit breaker according to claim 2, characterized in that, The mechanism housing includes a mechanism top cover (13) and a mechanism base (14), and the circuit breaker body housing includes a circuit breaker middle cover (24) and a circuit breaker base (25). The mechanism base (14) is connected to the intermediate base (3), the mechanism top cover (13) is closed on the side of the mechanism base (14) away from the intermediate base (3), the circuit breaker middle cover (24) is closed and connected to the circuit breaker base (25), and the intermediate base (3) is closed on the side of the circuit breaker middle cover (24) away from the circuit breaker base (25).

22. The circuit breaker according to claim 21, characterized in that, The top cover (13) of the mechanism is provided with an indicator window (131). The indicator (41) includes an arc-shaped indicator surface (415) with an indicator mark. The arc-shaped indicator surface (415) of the indicator (41) is opposite to the indicator window (131). The base (14) of the mechanism has an indicator base protruding on the side facing the top cover (13). The indicator (41) is rotatably mounted on the indicator base. The rotation center of the indicator (41) is parallel to the rotation center of the contact shaft (22) and perpendicular to the moving direction of the first push rod (42) and the second push rod (44).

23. The circuit breaker according to claim 1, characterized in that, The first top rod (42) is a cylindrical rod structure or a plate-shaped rod structure.

Images