Operating handle and circuit breaker with same

Abstract

The utility model relates to a plurality of operating handles for a circuit breaker, which comprise an operating section and a pivoting section, and the operating section and the pivoting section of the operating handle are provided with profiles which are symmetrically arranged relative to the longitudinal height center line of the operating handle. And the front pivoting section and the rear pivoting section of the pivoting sections are configured to have substantially the same profile size. The utility model also relates to a circuit breaker with the operating handle.

Description

TECHNICAL FIELD

[0001] The utility model relates to the operating handle for circuit breaker, especially the improvement and variation of operating handle and the circuit breaker with the operating handle that are suitable for the production line of multiple product types of circuit breaker. BACKGROUND

[0002] Circuit breaker (CB) is also called air switch or no-fuse breaker (NFB), which is an electrical safety device for protecting circuit from damage. The basic function of existing circuit breaker is to manually start the circuit or automatically cut off the fault circuit to protect the equipment (electric appliances in the circuit) and prevent fire risk, which is widely used in industrial production and daily life.

[0003] The circuit breaker in the prior art usually has a handle. The handle of the circuit breaker is manually pulled to perform the operation of starting the current connection, and when the current in the circuit is overloaded or short-circuited, it will automatically trip, and after the cause of the accident is eliminated, the handle is manually pulled again to realize the closed-loop connection of the circuit.

[0004] As a prior art, Chinese utility model patent application CN 118352199 A provides a circuit breaker with automatic reclosing function. The automatic structure of motor and gear and connecting rod mechanism transmission is used to realize the closing of the opening and closing handle in the disconnected state; and after the electromagnetic iron is energized, the sliding plug arranged in the connecting rod pushes the oil and the further energization of the motor to start the worm gear and gear mechanism to realize the reclosing of the opening and closing handle again. This circuit breaker is particularly suitable for leakage circuit breaker which is automatically disconnected due to overvoltage, overcurrent or other reasons, and solves the problem of unstable pull mechanism of traditional split excitation release. However, the mechanism design is relatively complex, which not only includes an electric operation mechanism, but also includes a hydraulic operation device and mechanical transmission components. In particular, the electromagnetic device installed on the connecting rod and the sliding plug inside the connecting rod and other components bring considerable difficulty to the manufacturing and processing of the entire circuit breaker; further, the hydraulic drive mode arranged in the mechanical transmission mechanism, i.e. the connecting rod, also brings risks to the use, i.e. oil leakage will cause the function of effective closing to be unable to be realized, thereby bringing uncertainty in the operation process of the overall circuit system and also inducing the risk of electric appliance damage and circuit burning in the case of overvoltage and overcurrent.

[0005] ​Unlike the above, another Chinese utility model patent CN 109616385 B provides a manually operated circuit breaker with a handle, a handle push rod and a reset spring. The handle is rotated to drive the movement of the handle push rod and the contact bracket, and then the engagement of the movable contact and the static contact of the circuit breaker is realized, thereby completing the closing operation of the circuit breaker. On the other hand, the opening movement of the movable contact bracket and the handle is realized by the main reset spring installed between the movable contact bracket and the jumper, and the handle reset spring installed on the movable contact bracket, i.e. the double spring mechanism. The closing and opening mode provided by the application effectively simplifies the structure of the circuit breaker, effectively reduces the manufacturing and installation cost of each component of the circuit breaker and improves the manufacturing and installation efficiency. However, the utility model patent only discloses one type of handle configuration, and only one side of the handle is configured to connect with the push rod, i.e. the opening and closing handle of the circuit breaker only has a single-sided configuration to connect with the push rod, and can only be used for the circuit breaker claimed in the utility model. Further, if a large number of the single type of circuit breaker needs to be produced, a special identification device is needed to identify the installation surface of the handle and the push rod to prevent misinstallation; further, if the connection part of the opening and closing handle and the handle push rod is reversely installed due to misoperation during the production process, the circuit breaker will not work normally thereafter. Utility model content

[0006] Therefore, the technical problem to be solved by the utility model is to overcome the defects of the above prior art, i.e. the complex design of the automatically operated circuit breaker mechanism, the difficulty in manufacturing and processing, the risk of circuit burning, and the misoperation of the opening and closing handle of the circuit breaker during the automatic production process.

[0007] In order to solve the above technical problems, the utility model provides an operating handle for a circuit breaker, which comprises an operating section and a pivoting section. The operating section has opposite lateral contact surfaces and a phase connection part which is at least one through hole extending in the longitudinal direction of the operating section. The pivoting section is configured to abut the cylindrical configuration of the operating section with its outer periphery, and has a front pivoting section and a rear pivoting section, a pivoting part and a connection part, the pivoting part extends through the front pivoting section to the rear pivoting section in the longitudinal direction, and the connection part is used to transmit opening and / or closing torque, and the connection part is respectively arranged at the outer diameter edge of the front pivoting section and the rear pivoting section. Wherein, the operating section and the pivoting section of the operating handle have a symmetrically arranged profile relative to the longitudinal center line of the operating handle; and the front pivoting section and the rear pivoting section of the pivoting section are configured to have substantially the same profile size.

[0008] Therefore, the operation handle can be directly installed in the shell of the circuit breaker without identifying the pivot section in the mass production of the same type of circuit breaker, thereby improving the assembly efficiency of the circuit breaker and reducing the assembly cost.

[0009] In some embodiments, the operation section is configured to be smoothly transitioned at the edge line thereof.

[0010] Preferably, the operation section is provided with an operation part protection sleeve partially surrounding the operation handle.

[0011] In some embodiments, the front pivot section and the rear pivot section are respectively configured with a front pivot section reduction and a rear pivot section reduction.

[0012] In some embodiments, the phase connection part of the operation section is two through holes arranged in parallel in the vertical direction.

[0013] In some embodiments, the operation section is configured as a triangular pyramid at the top in the vertical direction.

[0014] In some embodiments, the operation handle comprises an operation section in the shape of a column and a pivot section in the shape of a cylinder; wherein the connection part of the pivot section is a pair of protrusions extending radially outward from the pivot part.

[0015] In particular, the pair of protrusions have different extension angles from each other, thereby forming a concave receiving part between the protrusions.

[0016] In addition, the utility model also provides a circuit breaker with the operation handle, which further comprises a shell with an operation part, an electrical component accommodating part and a mounting part; a connecting member; a transmission component arranged in the electrical component accommodating part and comprising at least one operation member and at least one locking member, the operation member and the locking member abutting at the end face; an elastic member fixed between the pivot part of the operation handle and the shell or the transmission component; an electrical component arranged in the electrical component accommodating part and comprising at least a moving contact and a stationary contact, the moving contact being attached to the bottom of the locking member. Wherein, the circuit breaker has an open position and a closed position; the operation handle is pivotally installed in the operation part of the shell of the circuit breaker, and the operation section of the operation handle extends beyond the outer surface of the shell; the operation torque of the operation handle can operate the moving contact and the stationary contact to be in contact with each other to close or separated to open via the connecting member and the transmission component; and the elastic member can ensure that the operation handle is usually located in the open position of the circuit breaker.

[0017] In particular, said connecting member is configured to be connected with its two ends respectively to a pivoting section of said operating handle and to said operating member. Said operating member is attached to a support member, or has an embedded reinforcing member connectable to said connecting member.

[0018] By using the different types of operating handles described above, when the product is changed, the product can be effectively distinguished by sensing the handle type to call the circuit breaker product production procedure adapted to the handle type, thereby avoiding unnecessary confusion and facilitating automated production.

[0019] Some of the other features and advantages of the present application will be described in the detailed description which follows, in connection with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0020] The drawings accompanying the present application are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0021] Figure 1 A non-limiting embodiment of a circuit breaker having an operating handle according to the present application is shown, in which the mounting of the operating handle inside the housing is specifically shown;

[0022] Figure 2 A non-limiting embodiment of a circuit breaker having another operating handle according to the present application is shown, in which a different mounting of the operating handle inside the housing is specifically shown Figure 1 ;

[0023] Figure 3 A non-limiting embodiment of a circuit breaker having yet another operating handle according to the present application is shown, in which a different mounting of the operating handle inside the housing is specifically shown Figure 1 and Figure 2 ;

[0024] Figure 4 A configuration of an operating handle according to the prior art is shown;

[0025] Figure 5 A non-limiting embodiment of an operating handle according to the present application is shown, which is a non-limiting improved configuration of the operating handle shown in Figure 4 ;

[0026] Figure 6 A non-limiting embodiment of an operating handle according to the present application is shown, which is a non-limiting improved configuration of the operating handle shown in Figure 5 ;

[0027] Figure 7A non-limiting embodiment of an operating handle according to the present utility model is shown, which is Figure 6 A non-limiting improved configuration of the operating handle shown;

[0028] Figure 8 A non-limiting embodiment of another operating handle according to the present utility model is shown.

[0029] Figure 9 A non-limiting embodiment of yet another operating handle according to the present utility model is shown, in which a configuration different from the aforementioned operating handle embodiments is specifically shown.

[0030] Reference signs

[0031] 100 first circuit breaker 110 first operating handle

[0032] 111 first operating section 1111 first phase connection site

[0033] 112 first pivot section 1121 first front pivot section 1122 first rear pivot section

[0034] 1123 first pivot site 1124 first connection site

[0035] 130 first connection member 140 first operating member 150 first locking member 160 first movable contact

[0036] 170 first stationary contact 180 first housing

[0037] 100' second circuit breaker 110' second operating handle

[0038] 111' second operating section 1112' operating section protective sleeve 1121' front pivot section reduction

[0039] 1122' rear pivot section reduction

[0040] 120 first elastic member 130' second connection member 140' second operating member 145' support member

[0041] 150' second locking member 160' second movable contact 170' second stationary contact

[0042] 100'' third circuit breaker 110'' third operating handle

[0043] 111'' third operating section 1111' second phase connection site 140'' third operating member

[0044] 110’’’ fourth operating handle 111’’’ fourth operating section

[0045] 1111’’ third phase connection point

[0046] 112’ second pivot section 1121’ second front pivot section 1122’ second rear pivot section

[0047] 1123’ second pivot point 1124’ second connection point 1125’ concave receiving portion DETAILED DESCRIPTION

[0048] The utility model will be explained in combination with the drawings, it should be understood that, the following listed examples are only for explaining the technical scheme of the utility model, not limiting the utility model. The drawings are provided in order to present multiple embodiments of the utility model, but the drawings do not have to be drawn according to the size of the specific embodiment, and some features can be enlarged, removed or partially cut to better show and explain the disclosure of the utility model. Some components in the drawings can be adjusted in position according to actual needs without affecting the technical effect. The phrase "in the drawings" or similar language appearing in the specification does not necessarily refer to all drawings or examples.

[0049] Some directional terms used in the following to describe the drawings, such as "in", "out", "up", "down", "top", "bottom" and other directional terms will be understood to have its normal meaning and refer to those directions involved when normally viewing the drawings. Unless otherwise specified, the directional terms described in the specification are basically in the conventional direction as understood by those skilled in the art.

[0050] The terms "first", "first", "second", "second" and similar terms used in the utility model do not represent any order, quantity or importance in the utility model, but are used to distinguish one component from other components. The "generally" expression allows a reasonable range of angular deviation, and is not absolutely identical.

[0051] Some embodiments of the utility model will be described in detail below in combination with the drawings. In the case of no conflict, the following examples and features in the examples can be combined with each other.

[0052] According to the description attached Figures 1-3 Wherein the non-limiting examples of circuit breakers with operating handles according to the utility model are respectively shown, and the mounting mode of different operating handles in the housing is specifically shown.

[0053] Referring to the drawings Figure 1As shown, the first housing 180 of the first circuit breaker 100 is roughly divided into an operation portion, an electrical component accommodating portion and a mounting portion; wherein the first operation handle 110 is partially accommodated in the operation portion of the first housing 180 to facilitate manual opening and closing operations by an operator. The electrical component accommodating portion receives all electrical components of the first circuit breaker 100 and partially receives the transmission components; wherein the electrical components include but are not limited to the first moving contact 160 and the first stationary contact 170, and the transmission components form a transmission relationship between the first operation handle 110 and the first moving contact 160 by mechanical means to transmit the manual opening and closing operations intended by the operator to the electrical components, thereby realizing the opening and closing movement of the circuit breaker.

[0054] In a non-limiting embodiment according to the present application, referring to the accompanying drawings Figure 1 and the accompanying drawings Figure 5 , in the accompanying drawings Figure 1 , the first operation handle 110 of the first circuit breaker 100 is configured to have a first operation section 111 and a first pivot section 112, referring to the accompanying drawings Figure 5 ; wherein the first operation section 111 and the first pivot section 112 can be formed as an integral piece by material forming, especially by injection molding to form an integrated configuration.

[0055] In this embodiment, the first operation section 111 is generally cuboid in configuration and has large-area opposite lateral contact surfaces so that the operator can actuate or push the lateral contact surfaces of the operation section by means of finger force or palm force; further, a first phase connection site 1111 can also be provided along the longitudinal direction of the first operation section 111, as shown in the accompanying drawings Figure 5 , which can be configured as a through hole extending along the longitudinal direction of the first operation section 111, and the installer can pass through the through hole by means of a separate connection component to linearly connect the first operation sections 111 of a plurality of first operation handles 110 in series to form an integrated handle operation section, thereby facilitating the operator to simultaneously open and close multiple circuits, for example, the circuit breakers are respectively arranged in each phase of a three-phase power supply circuit, and the operation sections of the handles of the circuit breakers arranged in each phase circuit are connected in series by a connecting rod to form a linearly arranged integrated handle operation section. In this way, the operator only needs to push the integrated handle operation section as a whole to realize the simultaneous closing or opening of the multi-phase power supply, thereby facilitating the operation and avoiding the uneven force exertion when pushing or pulling the handle operation sections of the individual circuit breakers of each phase one by one or as a whole, such as the uneven voltage caused by the burning of the equipment due to the zero line circuit breaker.

[0056] Further, the first pivot section 112 is generally configured as a cylinder, and its outer periphery is contiguous with the first operation section 111. Preferably, the center line of the first pivot section 112 in the longitudinal direction is parallel to the longitudinal direction of the first operation section 111. In particular, the first pivot section 112 is respectively provided with a first front pivot section 1121 and a first rear pivot section 1122. The first pivot section 112 is provided with a first pivot site 1123 extending through the first front pivot section 1121 and the first rear pivot section 1122 in the longitudinal direction. Preferably, the first pivot site 1123 is a through hole. Further, the first front pivot section 1121 and the first rear pivot section 1122 are respectively provided with a first connecting site 1124 at the outer diameter edge thereof. In particular, the first connecting site 1124 is in the form of a counterbore to receive a connecting member of the circuit breaker, so that the opening and closing movement of the first operation section 111 of the first operation handle 110 can be transmitted to the electrical components of the circuit breaker. Preferably, the first front pivot section 1121 and the first rear pivot section 1122 are respectively provided with a first connecting site 1124 at the outer diameter edge thereof. In particular, the first connecting site 1124 is in the form of a counterbore to receive a connecting member of the circuit breaker, so that the opening and closing movement of the first operation section 111 of the first operation handle 110 can be transmitted to the electrical components of the circuit breaker. Preferably, the first front pivot section 1121 and the first rear pivot section 1122 are respectively provided with a first connecting site 1124 at the outer diameter edge thereof. In particular, the first connecting site 1124 is in the form of a counterbore to receive a connecting member of the circuit breaker, so that the opening and closing movement of the first operation section 111 of the first operation handle 110 can be transmitted to the electrical components of the circuit breaker. Figure 4 The configuration of the handle of the prior art shown in Figure 5 The first operation handle 110 shown in the present application is further provided with a concave surface pointing to the longitudinal center of the first pivot section 112 at the first front pivot section 1121 and the first rear pivot section 1122, so as to reduce the material required for manufacturing the first operation handle 110, and effectively reduce the weight of the first operation handle 110 to adapt to more flexible rotation. More preferably, in the utility model claimed in the present application, the first front pivot section 1121 and the first rear pivot section 1122 are designed to have substantially the same profile and shape, so as to simplify the design of the injection mold of the first operation handle 110, thereby effectively reducing the design and manufacturing cost of the first operation handle 110. Further, the first operation section 111 and the first pivot section 112 of the first operation handle 110 are both shaped to be symmetrically arranged with respect to the longitudinal center line of the first operation handle 110; in other words, the first front pivot section 1121 and the first rear pivot section 1122 have exactly the same profile with respect to the longitudinal center line of the first operation handle 110, and the first operation section 111 also has substantially the same profile of the front operation section and the rear operation section with respect to the longitudinal center line of the first operation handle 110. In view of this, unlike the single-sided pivot section of the handle of the prior art, such as only having a front pivot section or only having a rear pivot section, two different half molds need to be designed to complete the molding of the pivot section, the handle claimed in the present application has substantially the same profile of the front operation section and the rear operation section, so that only two identical half molds are required for injection molding, thereby effectively minimizing the time and cost for design and manufacturing.

[0057] In particular, the handle Figure 6 The handle Figure 5Further improvements to the first operating handle 110 shown. Specifically, see attached... Figure 6 The second operating handle 110' shown is constructed with a smoothly transitioning operating section at the ridge compared to the first operating handle 110, to distinguish it from the visual and tactile experience of the first operating handle 110. Preferably, the second operating handle 110' is also specially equipped with an operating section protective sleeve 1112', which partially surrounds the second operating section 111' of the second operating handle 110', and the operating section protective sleeve 1112' is preferably made of a flexible material, thereby preventing the operator from pushing the handle with their fingers and palm. Figure 5 The design of the operating sections also takes into full consideration the operator's comfort and hand feel during the operation of large circuit breakers from an ergonomic perspective, addressing potential slippage.

[0058] More specifically, attached Figure 7 The attached document shows Figure 6 Further improvements to the second operating handle 110' shown. Specifically, in the attached... Figure 6 Based on the second operating handle 110' shown, the pivot section of the second operating handle 110' has undergone further material reduction design. Specifically, the front and rear pivot sections of the second operating handle 110' are respectively constructed with reductions at their radially distal ends pointing towards their radial center, namely, front pivot section reduction 1121' and rear pivot section reduction 1122', as shown... Figure 7 As shown. Preferably, the front pivot section reduction 1121' and the rear pivot section reduction 1122' are constructed to have substantially the same profile, which is also to reduce the workload of mold design, and to complete the design by using two identical half-molds. Preferably, the front pivot section reduction 1121' and the rear pivot section reduction 1122' can also be directly constructed on the attached... Figure 5 The first operating handle 110 shown has a first front pivot section 1121 and a first rear pivot section 1122 with generally identical shapes.

[0059] Alternatively, unlike the attached Figure 5 The configuration of the operating section 111 in the first operating handle 110, with attached Figure 8 An embodiment of another particular operating handle is shown. Specifically, the attached... Figure 8The third operation handle 110'' shown provides a third operation section 111'' in the shape of a triangular pyramid, in which a third phase connection site 1111' extending in the longitudinal direction is further configured. More preferably, the third phase connection site 1111' is configured to extend in the longitudinal direction and two through holes arranged in parallel in the longitudinal direction. Thus, the operator can connect the third operation sections 111'' of a plurality of third operation handles 110'' in series into a line by means of a pair of connecting components, such as two connecting rods, to form a whole for a large power circuit breaker in a large industrial site, so as to stably transmit a larger torque and realize simultaneous opening and closing of a multi-phase circuit, such as a large power three-phase circuit breaker.

[0060] Alternatively, unlike the above-mentioned five operation handle designs, the operation handle shown in Fig. 6 has a first operation section 111 in the shape of a rectangular prism, a second operation section 112 in the shape of a circular cylinder, and a third operation section 113 in the shape of a circular cylinder. Figure 9 Another special configuration of an operation handle is shown. Specifically, the fourth operation handle 110''' shown in Fig. 7 has a fourth operation section 111''' in the shape of a column and a second pivot section 112' in the shape of a circular cylinder. The fourth operation section 111''' has a third phase connection site 1111'' that is preferably configured as a waist-shaped hole to adapt to a connecting component with a larger outer contour size, so as to transmit a larger torque. Figure 9 The second pivot section 112' of the fourth operation handle 110''' has a longitudinal length slightly larger than that of the fourth operation section 111''' and has a second front pivot section 1121' and a second rear pivot section 1122' with the same profile, which are symmetrically arranged with respect to the longitudinal height center line of the fourth operation handle 110'''. Further, the second pivot section 112' also has a second pivot site 1123' penetrating the second front pivot section 1121' and the second rear pivot section 1122', which is generally configured as a center through hole. In particular, the second pivot section 112' has a second connection site 1124' arranged at the radially outer edge thereof, which is a pair of protrusions extending radially outward from the second pivot site 1123', and the pair of protrusions have different extension angles from each other, so as to form a concave receiving portion 1125' between the pair of protrusions to accept a connecting member and transmit the torque of opening and closing of the operation handle to the electrical member of the circuit breaker, such as the moving contact of the circuit breaker.

[0061] According to another aspect of the present application, the operation handle shown in Fig. 8 has a first operation section 111 in the shape of a rectangular prism, a second operation section 112 in the shape of a circular cylinder, and a third operation section 113 in the shape of a circular cylinder. Figure 1 , the operation handle shown in Fig. 9 has a first operation section 111 in the shape of a rectangular prism, a second operation section 112 in the shape of a circular cylinder, and a third operation section 113 in the shape of a circular cylinder. Figure 2 and the operation handle shown in Fig. 10 has a first operation section 111 in the shape of a rectangular prism, a second operation section 112 in the shape of a circular cylinder, and a third operation section 113 in the shape of a circular cylinder. Figure 3Three kinds of circuit breakers with the operating handle described in the present application and their internal configurations are exemplarily shown. Referring to the attached Figure 1 and the attached Figure 2 In the installation, the first operating handle 110 is pivotably installed to the operating portion of the first housing 180 of the first circuit breaker 100 at the first pivot site 1123 of the first pivot section 112 thereof. The first operating section 111 of the first operating handle 110 extends beyond the outer surface of the first housing 180 for the fingers of the operator to push or the palm to push to perform the opening and closing operation. The first pivot section 112 of the first operating handle 110 can also be equipped with a resilient member which is fixed to the first housing 180 or the transmission member of the first circuit breaker 100 via the first pivot site 1123 to ensure that the first operating handle 110 is normally in the open position, referring to the attached Figure 1 The first resilient member 120 is shown. Preferably, the first resilient member is normally a torsion spring. Figure 2

[0062] Further, the transmission member installed in the electrical member accommodating portion of the first housing 180 at least includes the first operating member 140 and the first locking member 150. One end of the first connecting member 130 is received by the first connecting site 1124 of the first pivot section 112 and the other end is connected to the receiving site of the first operating member 140. Preferably, both ends of the first connecting member 130 are configured in a spherical shape to form a rolling connection with the concave surface of the first connecting site 1124 of the first pivot section 112 of the first operating handle 110 and with the concave surface of the receiving site of the first operating member 140 respectively, thereby ensuring that the first connecting member 130 stably transmits the opening and closing movement with a small friction coefficient. Referring to the attached Figure 1 The first operating member 140 partially abuts with the first locking member 150 in the end surface, whereby the pushing force transmitted by the first connecting member 130 can be transmitted to the first movable contact 160 attached to the first locking member 150 via the first locking member 150. When the first movable contact 160 contacts with the first stationary contact 170, the circuit is connected.

[0063] In the operation, the operator pushes the first operating section 111 of the first operating handle 110 to the left from the open position to the attached Figure 1 The first connecting member 130 connected to the concave surface of the first connecting site 1124 of the first pivot section 112 of the first operating handle 110 is shown in the attached Figure 1 The first connecting member 130 first pushes the first operating member 140 to rotate to the left, and the first operating member 140 in turn presses the first locking member 150 to further rotate to the left, whereby the first movable contact 160 attached to the bottom of the first locking member 150 moves to the left to contact the first stationary contact 170, completing the closing operation.​

[0064] Figure 1 shows a first circuit breaker 100 with a first operating handle 110. The first operating handle 110 is pivotally connected to a first operating member 140 of the first circuit breaker 100 via a first connecting member 130. The first operating member 140 is pivotally connected to a first locking member 150 of the first circuit breaker 100. The first operating handle 110 is configured to be operated by a user to close or open the first circuit breaker 100. The first operating handle 110 is configured to be operated by a user to close or open the first circuit breaker 100. The first operating handle 110 is configured to be operated by a user to close or open the first circuit breaker 100. Figure 2 Figure 2 shows a second circuit breaker 100' with a second operating handle 110' which is substantially identical in structure and operation to the first circuit breaker 100 shown in Figure 1. However, the second circuit breaker 100' is additionally provided with a support member 145' to which a second operating member 140' is rotatably attached. In this embodiment, the support member 145' abuts against an end face of a second locking member 150'. A closing movement of the second operating handle 110' to the left rotatably transmits via the second connecting member 130 and the second operating member 140' to the second locking member 150', thereby achieving contact between a second movable contact 160' attached to a bottom of the second locking member 150' and a second stationary contact 170'. In particular, the second operating handle 110' has an operating portion protective sleeve 1112' to show the difference from the first circuit breaker 100 during mass production and assembly of the second circuit breaker 100', and to facilitate the change of product by sensing the second operating handle 110' with the operating portion protective sleeve 1112' during the same production line. Figure 6 Figure 3 shows a third circuit breaker 100'' with a third operating handle 110'' which is substantially identical in structure and operation to the first circuit breaker 100 shown in Figure 1. However, the third operating handle 110'' has a third operating member 140'' which is reinforced in configuration, i.e. the receiving portion of the third operating member 140'' where it interfaces with the connecting member is mechanically reinforced to accommodate the use of the third circuit breaker 100'' with the third operating handle 110'' in large industrial sites for high power circuit breakers. Preferably, the receiving portion of the third operating member 140'' where it interfaces with the connecting member is configured with an embedded reinforcing member, such as an embedded metal member, to accommodate the transmission of a larger torque. Figure 1 Figure 4 shows a fourth circuit breaker 100''' with a fourth operating handle 110''' which is substantially identical in structure and operation to the first circuit breaker 100 shown in Figure 1. However, the fourth operating handle 110''' has a fourth operating member 140''' which is reinforced in configuration, i.e. the receiving portion of the fourth operating member 140''' where it interfaces with the connecting member is mechanically reinforced to accommodate the use of the fourth circuit breaker 100''' with the fourth operating handle 110''' in large industrial sites for high power circuit breakers. Preferably, the receiving portion of the fourth operating member 140''' where it interfaces with the connecting member is configured with an embedded reinforcing member, such as an embedded metal member, to accommodate the transmission of a larger torque. Figure 5 shows a fifth circuit breaker 100'''' with a fifth operating handle 110'''' which is substantially identical in structure and operation to the first circuit breaker 100 shown in Figure 1. However, the fifth operating handle 110'''' has a fifth operating member 140'''' which is reinforced in configuration, i.e. the receiving portion of the fifth operating member 140'''' where it interfaces with the connecting member is mechanically reinforced to accommodate the use of the fifth circuit breaker 100'''' with the fifth operating handle 110'''' in large industrial sites for high power circuit breakers. Preferably, the receiving portion of the fifth operating member 140'''' where it interfaces with the connecting member is configured with an embedded reinforcing member, such as an embedded metal member, to accommodate the transmission of a larger torque.

[0065] Figure 3 Figure 6 shows a sixth circuit breaker 100''''' with a sixth operating handle 110''''' which is substantially identical in structure and operation to the first circuit breaker 100 shown in Figure 1. However, the sixth operating handle 110''''' has a sixth operating member 140''''' which is reinforced in configuration, i.e. the receiving portion of the sixth operating member 140''''' where it interfaces with the connecting member is mechanically reinforced to accommodate the use of the sixth circuit breaker 100''''' with the sixth operating handle 110''''' in large industrial sites for high power circuit breakers. Preferably, the receiving portion of the sixth operating member 140''''' where it interfaces with the connecting member is configured with an embedded reinforcing member, such as an embedded metal member, to accommodate the transmission of a larger torque. Figure 8 More particularly, the aforementioned five different operating handles can be respectively used in different types of circuit breakers. In particular, since the front pivot section and the rear pivot section of the pivot section have substantially the same profile and shape, the pivot section of the operating handle can be directly installed in the housing of the circuit breaker without the need to identify the pivot section during mass production of the same type of circuit breaker, thereby improving the assembly efficiency of the entire circuit breaker and reducing the assembly cost. Further, during the inline automated production and assembly of different types of circuit breakers, especially when involving product changeover, the product can be effectively distinguished by sensing the handle type to call the production program of the circuit breaker product that is suitable for the handle type, thereby avoiding unnecessary confusion and facilitating automated production.

[0066]

[0067] ​Summarized above, through the utility model provides an operating handle for circuit breaker, especially related to the variant and improvement of operating handle suitable for multi-product type circuit breaker production line and the circuit breaker with operating handle.

Claims

1. An operating handle for a circuit breaker, characterized in that Comprise: - an operating section having opposite lateral contact surfaces; and a phase connection site which is at least one through hole extending in the longitudinal direction of the operating section; - a pivoting section configured to abut the cylindrical configuration of the operating section with its outer periphery, and having a front pivoting section and a rear pivoting section; and a pivoting site extending through in the longitudinal direction from the front pivoting section to the rear pivoting section; and a connection site for transmitting opening and / or closing torque, which is respectively provided at the outer diameter edge of the front pivoting section and the rear pivoting section; wherein the operating section and the pivoting section of the operating handle have a symmetrically arranged profile with respect to the longitudinal center line of the operating handle; and the front pivoting section and the rear pivoting section of the pivoting section are configured to have substantially the same profile size.

2. The operating handle for circuit breaker according to claim 1, wherein the operating section is configured to be smoothly transitioned at its edge line.

3. The operating handle for circuit breaker according to claim 2, wherein the operating section is provided with an operating section protection sleeve partially surrounding the operating handle.

4. The operating handle for a circuit breaker according to any one of claims 1-3, characterized in that, the front pivoting section and the rear pivoting section are respectively configured with a front pivoting section reduction and a rear pivoting section reduction.

5. The operating handle for a circuit breaker of claim 1, wherein, the phase connection site of the operating section is two through holes arranged in parallel in the longitudinal direction.

6. The operating handle for a circuit breaker of claim 1, wherein, the operating section is configured with a three-edge pyramid at the top thereof in the longitudinal direction.

7. The operating handle for a circuit breaker of claim 1, wherein, the operating handle comprises an operating section in the shape of a column and a pivoting section in the shape of a cylinder; wherein the connection site of the pivoting section is a pair of protrusions extending radially outward from the pivoting site.

8. The operating handle for a circuit breaker of claim 7, characterized in that the pair of protrusions have different extension angles from each other, thereby forming a concave receiving portion between the protrusions.

9. A circuit breaker having an operating handle according to any one of claims 1-3 and 5-8, further characterized by Comprise: a housing having an operating portion, an electrical component accommodating portion, and a mounting portion; a connecting member; a transmission component provided in the electrical component accommodating portion and comprising at least one operating member and at least one locking member, the operating member and the locking member end face abutting; a resilient member fixed between the pivoting site of the operating handle and the housing or the transmission component; an electrical component provided in the electrical component accommodating portion and comprising at least a movable contact and a stationary contact, the movable contact being attached to the bottom of the locking member; wherein the circuit breaker has an open position and a closed position; the operating handle is pivotably mounted into the operating portion of the housing of the circuit breaker, and the operating section of the operating handle extends beyond the outer surface of the housing; the operating torque of the operating handle can operate the movable contact and the stationary contact to be in contact with each other to close or to be separated to open via the connecting member and the transmission component; and the resilient member can ensure that the operating handle is normally located at the open position of the circuit breaker.

10. The circuit breaker according to claim 9, wherein the connecting member is configured to be rollingly connected with the pivoting section of the operating handle and the operating member at both ends thereof respectively; the operating member is attached to a support member, or has an embedded reinforcing member connectable to the connecting member.

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