A handle operating mechanism of a molded case circuit breaker and a switch cabinet

Abstract

The utility model discloses a kind of moulded case circuit breaker handle operating mechanism and switch cabinet, handle operating mechanism includes circuit breaker body and handle operating mechanism, the operating part on the circuit breaker body can drive the circuit breaker body to carry out closing and opening operation, the handle operating mechanism can drive the operating part action, movement steering structure is arranged between the operating part and handle operating mechanism, so that the plane where handle operating mechanism is and the circuit breaker body front face is not parallel when still can be carried out closing and opening operation to circuit breaker, expand the applicable scenario of moulded case circuit breaker.

Description

Technical Field

[0001] This utility model belongs to the field of circuit breaker technology, specifically relating to a handle operating mechanism and switch cabinet for a molded case circuit breaker. Background Technology

[0002] Molded case circuit breakers are installed in drawer cabinets or similar devices, making it impossible to directly contact the circuit breaker for closing and opening operations. In such cases, a manual operating mechanism is needed for remote closing and opening operations. Existing manual operating mechanisms have the plane of the operating handle parallel to the front of the circuit breaker. However, as the application scenarios for manual operating mechanisms become more widespread, due to installation space limitations, when the plane of the operating handle is not parallel to the front of the circuit breaker, especially when the plane of the operating handle is perpendicular to the front of the circuit breaker, existing manual operating mechanisms cannot perform closing and opening operations. Utility Model Content

[0003] The purpose of this invention is to address the deficiency in existing technologies where the operating handle of a manual operating mechanism cannot perform closing and opening operations on the circuit breaker when the plane of the operating handle is not parallel to the front of the circuit breaker. This invention provides a molded case circuit breaker handle operating mechanism that adds a motion steering structure between the molded case circuit breaker and the handle operating mechanism. This allows the manual operating mechanism to still perform closing and opening operations on the circuit breaker even when the plane of the operating handle is not parallel to the front of the circuit breaker, expanding the applicable scenarios for molded case circuit breakers.

[0004] Technical solution

[0005] To achieve the above-mentioned technical objectives, this utility model provides a handle operating mechanism for a molded case circuit breaker, including a circuit breaker body and a handle operating mechanism. The operating part on the circuit breaker body can drive the circuit breaker body to perform closing and opening operations. The handle operating mechanism includes an output shaft and an operating handle connected to the end of the output shaft, which can drive the operating part to move. A motion steering structure is provided between the operating part and the handle operating mechanism, so that the circuit breaker can still be closed and opened even when the plane of the handle operating mechanism is not parallel to the front of the circuit breaker body.

[0006] Preferably, the operating part is located on the front of the circuit breaker body, the rotation plane of the operating handle is parallel to the lower end face of the circuit breaker, and the output shaft is perpendicular to the lower end face of the circuit breaker.

[0007] Preferably, the motion steering structure includes a gear rack connected to a bevel gear set mounted on top of the output shaft.

[0008] Preferably, the motion steering structure includes a gear rack connected to a worm gear, which is mounted on top of the output shaft.

[0009] Preferably, the motion steering structure includes a slider that is mounted on and engages with a lead screw, the lead screw being mounted on top of the output shaft.

[0010] Preferably, the motion steering structure includes an eccentric wheel, which is connected to a roller via a flexible element, and the roller is mounted on the output shaft;

[0011] The roller includes a lower roller located on the side of the eccentric wheel closer to the operating handle and an upper roller located on the side of the eccentric wheel farther from the operating handle. Flexible elements are wound on the lower roller and the upper roller respectively, and the flexible elements are wound in opposite directions.

[0012] The operating part is located in the drive hole on the eccentric wheel, and the eccentric wheel can drive the operating part to move.

[0013] Preferably, the operating part is located in the drive hole on the motion steering structure, and the drive hole can drive the operating part to move.

[0014] Preferably, the lower roller has a notch, the upper roller has a notch, and the notches differ in angle from each other.

[0015] Preferably, the motion steering structure includes a bevel gear set and an eccentric wheel set, the eccentric wheel set includes an eccentric wheel, the eccentric wheel is fixedly connected to the driven gear of the bevel gear set, and the driving gear of the bevel gear set is mounted on the top of the output shaft;

[0016] The operating part is located in the drive hole on the eccentric wheel, and the eccentric wheel can drive the operating part to move.

[0017] A switch cabinet includes a handle operating mechanism as described in any of the preceding claims, wherein the circuit breaker body and the handle operating mechanism are located in the cabinet, and the operating handle is mounted on a side of the cabinet parallel to the lower end face of the circuit breaker.

[0018] Beneficial effects

[0019] This utility model provides a handle operating mechanism for a molded case circuit breaker and a switchgear. The handle operating mechanism includes a circuit breaker body and a handle operating mechanism. The operating part on the circuit breaker body can drive the circuit breaker body to perform closing and opening operations. The handle operating mechanism can drive the operating part to move. A motion steering structure is provided between the operating part and the handle operating mechanism, so that the circuit breaker can still be closed and opened even when the plane of the handle operating mechanism is not parallel to the front of the circuit breaker body. The addition of a motion steering structure between the molded case circuit breaker and the handle operating mechanism expands the applicable scenarios of molded case circuit breakers, allowing the manual operating mechanism to perform closing and opening operations even when the plane of the operating handle is not parallel to the front of the circuit breaker. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Appendix Figure 1 This is a schematic diagram of the installation of the handle operating mechanism in the prior art;

[0022] Appendix Figure 2 This is a schematic diagram of the handle operating mechanism installation in Embodiment 1 of this utility model. Figure 1 ;

[0023] Appendix Figure 3 This is a schematic diagram of the motion steering structure in Embodiment 1 of this utility model;

[0024] Appendix Figure 4 This is a schematic diagram of the motion steering structure in Embodiment 2 of this utility model. Figure 1 ;

[0025] Appendix Figure 5 This is a schematic diagram of the motion steering structure in Embodiment 3 of this utility model. Figure 1 ;

[0026] Appendix Figure 6 This is a schematic diagram of the motion steering structure in Embodiment 4 of this utility model;

[0027] Appendix Figure 7 This is a schematic diagram of the handle operating mechanism installation in Embodiment 1 of this utility model. Figure 2 ;

[0028] Appendix Figure 8 This is a schematic diagram of the motion steering structure in Embodiment 2 of this utility model. Figure 2 ;

[0029] Appendix Figure 9 This is a schematic diagram of the motion steering structure in Embodiment 3 of this utility model. Figure 2 ;

[0030] Appendix Figure 10 This is a schematic diagram of the motion steering structure in Embodiment 5 of this utility model. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0034] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0035] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0036] Example 1

[0037] As attached Figure 1 As shown, in the prior art, the plane on which the operating handle of the manual operating mechanism moves is parallel to the front of the circuit breaker. As the application scenarios of circuit breakers + manual operating mechanisms become more and more widespread, due to the limitation of installation space, when the plane on which the operating handle of the manual operating mechanism is not parallel to the front of the circuit breaker, especially when the plane on which the operating handle of the manual operating mechanism is perpendicular to the front of the circuit breaker, the existing manual operating mechanism cannot perform closing and opening operations on the circuit breaker.

[0038] To solve this problem, see attached... Figure 2 As shown, this embodiment provides a handle operating mechanism for a molded case circuit breaker, including a circuit breaker body 10 and a handle operating mechanism 20. The operating part 30 on the circuit breaker body 10 is shown in the attached figure. Figure 7 As shown, the handle operating mechanism 20 can drive the circuit breaker body 10 to perform closing and opening operations. The handle operating mechanism 20 can drive the operating part 30 to move. A motion steering structure 40 is provided between the operating part 30 and the handle operating mechanism 20, so that the circuit breaker can still be closed and opened even when the plane of the handle operating mechanism 20 is not parallel to the front of the circuit breaker body 10. The operating part 30 is located on the front of the circuit breaker body 10. (See attached diagram) Figure 3 As shown, the motion steering structure 40 includes a gear rack 41 connected to a bevel gear set 42. The handle operating mechanism 20 includes an output shaft and an operating handle 50. The bevel gear set 42 is connected to the output shaft, and the operating handle 50 is mounted on the output shaft. The rotation plane of the operating handle 50 is parallel to the lower end face 80 of the circuit breaker, and the output shaft is perpendicular to the lower end face 80 of the circuit breaker.

[0039] This embodiment uses a bevel gear and rack and pinion mechanism to change the plane between the circuit breaker front and the plane of the manual operating mechanism from parallel to perpendicular. It should be noted that in this embodiment, the perpendicularity between the circuit breaker front and the plane of the manual operating mechanism is only a preferred embodiment; any non-planar relationship between the circuit breaker front and the plane of the manual operating mechanism can be achieved using the motion steering structure 40.

[0040] This utility model also provides a switch cabinet, including the above-mentioned handle operating mechanism 20. The circuit breaker body 10 and the handle operating mechanism 20 are located in the cabinet 70, and the operating handle 50 is installed on the side of the cabinet 70 parallel to the lower end face 80 of the circuit breaker.

[0041] Example 2

[0042] As attached Figure 4 and attached Figure 8 As shown, in this embodiment, the motion steering structure 40 includes a gear rack 41, which is connected to a worm gear 43. An operating handle 50 is mounted on the output shaft of the worm gear 43. The operating part 30 is located in a drive hole 61 on the gear rack 41, and the gear rack 41 can drive the operating part 30 to move. Other structures are the same as in Embodiment 1.

[0043] Example 3

[0044] As attached Figure 5 and attached Figure 9 As shown, in this embodiment, the motion steering structure 40 includes a slider 44, which is mounted on and meshes with a lead screw 45. An operating handle 50 is mounted on the output shaft of the lead screw 45. The operating part 30 is located in the drive hole 62 on the slider 44, and the slider 44 can drive the operating part 30 to move. Other structures are the same as in Embodiment 1.

[0045] Example 4

[0046] As attached Figure 6 As shown, in this embodiment, the motion steering structure 40 includes an eccentric wheel 46, which is connected to a roller 48 via a flexible member 47. An operating handle 50 is mounted on the output shaft of the roller 48. The operating part 30 is located in the drive hole 63 on the eccentric wheel 46, and the eccentric wheel 46 can drive the operating part 30 to move.

[0047] Roller 48 includes a lower roller 481 located on the side of eccentric wheel 46 closer to operating handle 50 and an upper roller 482 located on the side of eccentric wheel 46 away from operating handle 50. Flexible elements 471 and 472 are wound around 481 and 482 respectively, with the winding directions of flexible elements 471 and 472 being opposite. During the opening operation, the operating handle 50 is rotated, and the operating handle 50 drives 481 and 482 to rotate via the output shaft. At this time, 481 pulls 471 into its slot, and 482 releases 472 from its slot. 471 drives the eccentric wheel 46 to rotate downwards along the rotation center 461, causing the circuit breaker to open. During the closing operation, the operating handle 50 is rotated in the opposite direction, and the operating handle 50 drives 481 and 482 to rotate via the output shaft. At this point, 482 takes 472 into its slot, and 481 releases 471 from its slot. 472 then drives the eccentric wheel 46 to rotate upwards along its rotation center 461, causing the circuit breaker to close. 481 has a notch 4811, and 482 has a notch 4821. 4811 and 4821 are 90 degrees apart in angle, serving as a reminder to install in the designated position during assembly.

[0048] The other structures are the same as in Example 1.

[0049] Example 5

[0050] The motion steering structure 40 can also be a bevel gear plus cam.

[0051] As attached Figure 10 As shown, the motion steering structure 40 includes a bevel gear set 42 and an eccentric wheel set 49. The eccentric wheel set 49 includes an eccentric wheel 491 and a cylinder 492, with the cylinder 492 fixedly connected to the driven gear 422 of the bevel gear set 42. The handle operation mechanism 20 includes an output shaft and an operating handle 50. The driving gear 421 of the bevel gear set 42 is connected to the output shaft, and the operating handle 50 is mounted on the output shaft. The operating part 30 is located in the drive hole 63 on the eccentric wheel 491, and the eccentric wheel 491 can drive the operating part 30 to move.

[0052] During the tripping operation, rotating the operating handle 50 causes the output shafts 421 and 422 to rotate. At this time, 422 causes 491 to rotate downwards, thus tripping the circuit breaker. During the closing operation, rotating the operating handle 50 in the opposite direction causes the output shafts 421 and 422 to rotate. At this time, 422 causes 491 to rotate upwards, thus closing the circuit breaker.

[0053] This utility model provides a handle operating mechanism for a molded case circuit breaker, including a circuit breaker body 10 and a handle operating mechanism 20. An operating part 30 on the circuit breaker body 10 can drive the circuit breaker body 10 to perform closing and opening operations. The handle operating mechanism 20 can drive the operating part 30 to move. The key feature is that a motion steering structure 40 is provided between the operating part 30 and the handle operating mechanism 20, allowing the circuit breaker to be closed and opened even when the plane of the handle operating mechanism 20 is not parallel to the front of the circuit breaker body 10. The addition of a motion steering structure between the molded case circuit breaker and the handle operating mechanism expands the applicable scenarios for molded case circuit breakers, enabling the hand-operated mechanism to perform closing and opening operations even when the plane of the operating handle is not parallel to the front of the circuit breaker.

[0054] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0055] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A handle operating mechanism for a molded case circuit breaker, comprising a circuit breaker body (10) and a handle operating mechanism (20), wherein an operating part (30) on the circuit breaker body (10) is capable of driving the circuit breaker body (10) to perform closing and opening operations, and the handle operating mechanism (20) comprises an output shaft and an operating handle (50) connected to the end of the output shaft, capable of driving the operating part (30) to operate, characterized in that: A motion steering structure (40) is provided between the operating part (30) and the handle operating mechanism (20), so that the circuit breaker can still be closed and opened even when the plane of the handle operating mechanism (20) is not parallel to the front of the circuit breaker body (10).

2. The handle operating mechanism as described in claim 1, characterized in that: The operating part (30) is located on the front of the circuit breaker body (10), the rotation plane of the operating handle (50) is parallel to the lower end face (80) of the circuit breaker, and the output shaft is perpendicular to the lower end face (80) of the circuit breaker.

3. The handle operating mechanism as described in claim 1, characterized in that: The motion steering structure (40) includes a gear rack (41) connected to a bevel gear set (42) mounted on top of the output shaft.

4. The handle operating mechanism as described in claim 1, characterized in that: The motion steering structure (40) includes a gear rack (41) connected to a worm gear (43) mounted on top of the output shaft.

5. The handle operating mechanism as described in claim 1, characterized in that: The motion steering structure (40) includes a slider (44) which is mounted on a lead screw and engages with the lead screw (45), which is mounted on top of the output shaft.

6. The handle operating mechanism as described in claim 1, characterized in that: The motion steering structure (40) includes a first eccentric wheel (46), which is connected to a roller (48) via a flexible member (47), and the roller (48) is mounted on the output shaft; The roller (48) includes a lower roller (481) located on the side of the first eccentric wheel (46) closer to the operating handle (50) and an upper roller (482) located on the side of the first eccentric wheel (46) away from the operating handle (50). A first flexible element (471) and a second flexible element (472) are respectively wound on the lower roller (481) and the upper roller (482). The first flexible element (471) and the second flexible element (472) are wound in opposite directions. The operating part (30) is located in the drive hole on the first eccentric wheel (46), and the first eccentric wheel (46) can drive the operating part (30) to move.

7. The handle operating mechanism as described in any one of claims 3, 4, 5, or 6, characterized in that: The operating part (30) is located in the drive hole on the motion steering structure (40), and the drive hole can drive the operating part (30) to move.

8. The handle operating mechanism as described in claim 6, characterized in that: The lower roller (481) has a first notch (4811), and the upper roller (482) has a second notch (4821). The first notch (4811) and the second notch (4821) are 90 degrees apart in angle.

9. The handle operating mechanism as described in claim 1, characterized in that: The motion steering structure (40) includes a bevel gear set (42) and an eccentric wheel set (49). The eccentric wheel set (49) includes a second eccentric wheel (491). The second eccentric wheel (491) is fixedly connected to the driven gear (422) of the bevel gear set (42). The driving gear (421) of the bevel gear set (42) is mounted on the top of the output shaft. The operating part (30) is located in the drive hole on the second eccentric wheel (491), and the second eccentric wheel (491) can drive the operating part (30) to move.

10. A switch cabinet, comprising a handle operating mechanism (20) as described in any one of claims 1-9, wherein the circuit breaker body (10) and the handle operating mechanism (20) are located in the cabinet (70), and the operating handle (50) is mounted on a side of the cabinet (70) parallel to the lower end face (80) of the circuit breaker.

Images