State indication structure of electric operating mechanism
By adopting a status indicator structure in the small housing frame electric operating mechanism, the coaxial arrangement of the cam disc and the gear shaft and the elastic resetting part are used to solve the problem of space limitations, and stable and reliable status indicators are achieved, which improves the applicability and safety of the system.
Patent Information
- Application Number
- CN202422535606.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-21
- Publication Date
- 2025-08-15
- Estimated Expiration
- 2034-10-21
AI Technical Summary
The existing signal feedback means are space limited in the electric operating mechanism of the small shell frame, resulting in complex assembly and difficulty in maintaining safe and reliable performance.
The state indicator structure is adopted, including a housing, a cover, a mounting column, a status indicator and an elastic reset member. Through the coaxial arrangement of the cam disk and the gear shaft, the elastic reset member and the status indicator are used to switch the state during the movement of the cam disk, and the stability and reliability are achieved by combining the positioning pin and the limiting block.
It realizes stable and reliable status indication in the small shell electric operating mechanism, improves the applicability and safety of the system, reduces costs, and does not affect the basic functions of the electric operating mechanism.
Smart Images
Figure CN223230291U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of automatic control of electric equipment, and in particular to a state indication structure of an electric operating mechanism. Background Art
[0002] As the core power source of circuit breakers, electric operating mechanisms are widely used across various circuit breaker industries. Their primary function is to convert electrical energy into mechanical energy, providing power for the circuit breaker's closing and opening (energy storage). With the development of the electric power industry, molded case circuit breaker operating mechanisms have gradually become the mainstream, with designs and developments moving towards miniaturization and intelligentization. Molded case circuit breakers have gained widespread market adoption due to their compact size and ease of installation and maintenance. However, in practical applications, the requirements for circuit breaker status feedback are becoming increasingly stringent.
[0003] To address the need for circuit breaker status feedback, a common solution currently involves installing a signaling mechanism within the circuit breaker itself. One common approach involves installing the signaling mechanism within the switch housing, which allows for simple layout in larger-frame switches with ample space. Another approach involves combining external sensors with a signaling feedback system. This solution provides more accurate status feedback, but at a higher cost.
[0004] However, these two common solutions have significant limitations when applied to space-constrained small-frame switches. The limited internal dimensions of small-frame switches impose severe space constraints on both the placement of signaling mechanisms and the installation of external sensor systems. This complicates assembly and makes it difficult to maintain high safety and reliability during operation. Therefore, existing signal feedback methods are difficult to implement effectively in small-frame switch environments, necessitating the search for a smaller, easier-to-install solution to overcome these shortcomings. Utility Model Content
[0005] In order to improve the applicability of the electric operating structure, the present application provides a state indication structure of the electric operating mechanism.
[0006] The state indication structure of the electric operating mechanism provided in this application adopts the following technical solution:
[0007] A status indication structure of an electric operating mechanism includes a shell and a cover, wherein the cover is provided with a mounting post on the inner side wall facing the shell, the mounting post is arranged perpendicular to the inner side wall of the cover, and a status indicator and an elastic reset part that helps to reset the status indicator are rotatably sleeved on the mounting post, the status indicator includes an oblique push part rotatably sleeved on the mounting shaft and an indicating part arranged on the side of the oblique push part away from the mounting shaft, and an energy release card indicating the energy release status and an energy storage card indicating the energy storage status are provided on the side wall of the indicating part facing the cover, an observation port is provided on the cover, and the observation port is set to match the size of a single card, and a rotatable cam plate is provided in the shell, when the cam plate rotates until the protruding end contacts the side wall of the oblique push part, the energy storage card appears at the observation port, and when the cam plate rotates until the protruding end is away from the oblique push part, the energy release card appears at the observation port.
[0008] By adopting the above-mentioned technical solution, the status indicator structure achieves stability in the switching state of the status indicator during the movement of the cam disc by installing the elastic reset member together with the status indicator on the mounting column. Ultimately, the energy storage and release status is displayed by rotating the cam disc and driving the status indicator. The overall structure is simple and reliable, easy to manufacture, and low-cost. Under normal conditions, it does not affect the basic functions of the electric operating mechanism and can effectively overcome the limited space size of small-frame electric operating systems. This status indicator structure has demonstrated excellent performance in practical applications, improving the reliability and safety of the system.
[0009] Optionally, a gear shaft is rotatably provided on the side of the shell facing away from the cover, the rotating shaft of the gear shaft passes through the shell, and a plurality of positioning pins are provided on the end extending out of the shell, the cam plate is coaxially arranged with the gear shaft, and a positioning hole is provided on the cam plate corresponding to each positioning pin, and the positioning holes correspond to the positioning pins one-to-one and are plug-fitted.
[0010] By adopting this technical solution, the gear shaft serves as the transmission element between the cam plate and the external drive source. The coaxial arrangement of the cam plate and the gear shaft significantly reduces the space occupied within the control panel, thereby addressing the limited space within small-frame control panels. The alignment of the locating pins and locating holes ensures precise positioning between the cam plate and the housing during control panel assembly, improving the applicability of the status indicator structure.
[0011] Optionally, a slot is provided at the connection between the oblique push portion and the indicating portion, and the elastic return member is a torsion spring, which is sleeved on the mounting column and located between the cover and the oblique push portion. One end of the torsion spring is fixed on the inner wall of the cover shell, and the other end passes through the slot and abuts against the side wall of the slot.
[0012] By adopting the above technical solution, the slot opened at the connection between the oblique push part and the indicating part enables the torsion spring to be accurately fixed between the inner wall of the cover and the status indicator. One end of the torsion spring is fixed on the inner wall of the cover, and the other end passes through the slot and abuts against the side wall of the slot, thereby realizing effective resetting of the status indicator and enabling the status indicator to be quickly reset to the initial position when the cam disc rotates, thereby improving the response speed and reliability of the status indication structure.
[0013] Optionally, a limit block is provided on the inner side wall of the cover, and the limit block is provided on the movement path of the status indicator. When the energy release card appears at the observation port, the indicator part and the limit block are in conflict with each other.
[0014] By adopting the above technical solution, the setting of the limit block can prevent the status indicator from exceeding its design range during movement. When the energy release card appears at the observation port, the interference setting between the indicator part and the limit block can limit the movement of the status indicator, thereby improving the stability and reliability of the status indication.
[0015] Optionally, a hanging tab is provided on the top wall of the raised end portion of the cam disc. When the cam disc rotates until the raised end portion contacts the side wall of the oblique push portion, the hanging tab is synchronously contacted with the side wall of the oblique push portion.
[0016] By adopting the above technical solution, the setting of the hanging climb increases the contact area between the hanging climb and the oblique pushing part when pushing the oblique pushing part, thereby improving the stability of the status indicator when subjected to force and further improving the reliability of the status feedback.
[0017] Optionally, a tension spring is connected between the hanging hook and the side wall of the shell away from the corner of the status indicator. The hanging hook is rotatably set on the top wall of the raised end of the cam plate, and the end connected between the tension spring and the side wall of the shell is rotatably engaged with the shell.
[0018] By adopting the above technical solution, the tension spring connected between the hanging hook and the housing can further improve the rapid reset of the cam disc in the energy release state, thereby improving the response speed and stability of the status indication structure.
[0019] Optionally, the indicator portion is provided with card slots corresponding to the energy release card and the energy storage card, and an oblique notch is provided at a corner of each of the card slots.
[0020] By adopting the above technical solution, the card slot on the indicator part can conveniently install energy release cards and energy storage cards. The fool-proof design of the oblique notch not only facilitates the insertion and removal of the card, but also reduces the possibility of the staff installing the card upside down, thereby improving the accuracy of the card insertion position and further improving the accuracy of the status indication.
[0021] Optionally, the status indication marks on the energy-release card and the energy-storage card are both coated with fluorescent paint, and the fluorescent paint on the energy-release card glows in a different color at night than the fluorescent paint on the energy-storage card.
[0022] By adopting the above technical solution, the coating of fluorescent paint enables users to clearly distinguish the energy release and energy storage states of the circuit breaker even at night, thereby improving the recognition and safety of the status indication.
[0023] In summary, this application includes at least one of the following beneficial technical effects:
[0024] 1. This status indicator structure achieves stability in the switching state of the status indicator during the movement of the cam disc by installing the elastic reset member together with the status indicator on the mounting column. Ultimately, the rotation of the cam disc drives the status indicator to rotate, thereby displaying the energy storage and release status. The overall structure is simple and reliable, easy to manufacture, and low in cost. Under normal conditions, it will not affect the basic functions of the electric operating mechanism and can effectively overcome the problem of limited space size in small-frame electric operating systems. This status indicator structure has demonstrated excellent performance in practical applications, improving the reliability and safety of the system.
[0025] 2. The gear shaft serves as the transmission element between the cam plate and the external drive source. The coaxial arrangement of the cam plate and the gear shaft can significantly reduce the space occupied within the switch, thereby resolving the issue of limited space within small-frame switches. The coordination of the locating pins and locating holes enables precise positioning between the cam plate and the housing during switch assembly, thereby improving the applicability of the status indicator structure.
[0026] 3. The notch at the junction of the push portion and the indicator portion allows the torsion spring to be accurately fixed between the inner wall of the housing and the status indicator. One end of the torsion spring is fixed to the inner wall of the housing, while the other end passes through the notch and abuts against the side wall of the notch, thereby achieving effective resetting of the status indicator. The status indicator can be quickly reset to its initial position when the cam disc rotates, thereby improving the response speed and reliability of the status indication structure. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.
[0028] Figure 2 It is a schematic diagram of the positional relationship between the cam plate, the hanging hook and the status indicator when the embodiment of the present application is in the energy storage state.
[0029] Figure 3 It is a schematic diagram of the positional relationship between the cam plate, the hanging hook and the status indicator when the embodiment of the present application is in the energy release state.
[0030] Figure 4This is a schematic diagram showing the position relationship between the limit block and the status indicator on the housing in the embodiment of the present application.
[0031] Description of reference numerals:
[0032] 1. Housing; 2. Cover; 21. Observation port; 22. Mounting column; 23. Limit block; 3. Status indicator; 31. Oblique push portion; 32. Indicator portion; 321. Slot; 3211. Oblique notch; 33. Notch; 4. Energy release card; 5. Energy storage card; 6. Cam plate; 61. Positioning hole; 62. Lifting bracket; 7. Elastic reset member; 8. Gear shaft; 81. Positioning pin; 9. Tension spring. DETAILED DESCRIPTION
[0033] The following is combined with Figure 1-4 This application is described in further detail.
[0034] An embodiment of the present application discloses a status indication structure of an electric operating mechanism.
[0035] Reference Figure 1 and Figure 2 A status indicator structure for an electric operating mechanism includes a housing 1 and a cover 2. The cover 2 is mounted to the housing 1 via elastic snaps. An observation port 21 is defined in the cover 2. A mounting post 22 is fixedly mounted on the inner sidewall of the cover 2, facing the housing 1. The mounting post 22 is perpendicular to the inner sidewall of the cover 2. A status indicator 3 is rotatably mounted on the mounting post 22. The status indicator 3 is provided with an energy release card 4 indicating the energy release state and an energy storage card 5 indicating the energy storage state. The observation port 21 is configured to accommodate the size of each card. A cam plate 6 is rotatably mounted within the housing 1.
[0036] Reference Figure 1 、 Figure 2 and Figure 3 When the cam plate 6 rotates until the raised end contacts the status indicator 3, the energy storage card 5 appears at the observation port 21. When the cam plate 6 rotates until the raised end moves away from the status indicator 3, the energy release card 4 appears at the observation port 21.
[0037] Reference Figure 2 The mounting column 22 is also provided with an elastic return member 7. The elastic return member 7 in this embodiment is a torsion spring. The status indicator 3 includes an oblique push portion 31 and an indicating portion 32. The oblique push portion 31 is rotatably mounted on the mounting shaft. The indicating portion 32 is integrally formed on the side of the oblique push portion 31 away from the mounting shaft. A slot 33 is provided at the connection between the oblique push portion 31 and the indicating portion 32. The torsion spring is located between the cover 2 and the oblique push portion 31. One end of the torsion spring is fixedly set on the inner wall of the cover shell, and the other end passes through the slot 33 and abuts against the side wall of the slot 33.
[0038] Reference Figure 2The indicator portion 32 has slots 321 corresponding to the energy release card 4 and the energy storage card 5. Each slot 321 has an oblique notch 3211 at one corner. The energy release card 4 and the energy storage card 5 are inserted into the corresponding slots 321. The status indicators on the energy release card 4 and the energy storage card 5 are coated with fluorescent paint. The fluorescent paint on the energy release card 4 glows at night in a different color than the fluorescent paint on the energy storage card 5.
[0039] Reference Figure 1 、 Figure 3 and Figure 4 A limit block 23 is fixedly provided on the inner wall of the cover 2 , and the limit block 23 is provided on the movement path of the status indicator 3 . When the energy release card 4 appears at the observation port 21 , the indicator portion 32 is in conflict with the limit block 23 .
[0040] Reference Figure 2 and Figure 3 A gear shaft 8 is rotatably provided on the side of the housing 1 facing away from the cover 2. In this application, the gear shaft 8 serves as a transmission part between the cam disc 6 and the external drive source. The overlapping coaxial arrangement between the cam disc 6 and the gear shaft 8 can greatly reduce the space occupied in the electric control. The rotating shaft of the gear shaft 8 passes through the housing 1, and a plurality of positioning pins 81 are fixedly provided on the end extending out of the housing 1. In this embodiment, four positioning pins 81 are taken as an example, and the four positioning pins 81 are distributed at equal angles around the axial direction of the gear shaft 8. The cam disc 6 and the gear shaft 8 are coaxially arranged, and a positioning hole 61 is provided on the cam disc 6 corresponding to each positioning pin 81. The positioning holes 61 correspond to the positioning pins 81 one by one and are plug-fitted.
[0041] Reference Figure 2 and Figure 3 A hanging hook 62 is installed on the top wall of the raised end of the cam plate 6 by means of a bolt, and a tension spring 9 is sleeved and connected between the hanging hook 62 and the side wall of the shell 1 away from the corner of the status indicator 3, and the end connected between the tension spring 9 and the side wall of the shell 1 is rotated and cooperated with the shell 1. When the cam plate 6 rotates until the raised end contacts the side wall of the oblique push portion 31, the hanging hook 62 is synchronously set to contact the side wall of the oblique push portion 31.
[0042] The implementation principle of the status indication structure of an electric operating mechanism in an embodiment of the present application is as follows: the gear shaft 8 serves as a transmission member between the cam plate 6 and the external drive source. The overlapping coaxial arrangement between the cam plate 6 and the gear shaft 8 can greatly reduce the space occupied by the electric operating mechanism. During the use of the electric operating mechanism, the external drive source drives the gear shaft 8 to rotate, and the rotation of the gear shaft 8 synchronously drives the cam plate 6 to rotate back and forth. When the cam plate 6 rotates until the raised end contacts the status indicator 3, an energy storage card 5 appears at the observation port 21. When the cam plate 6 rotates until the raised end is away from the status indicator 3, an energy release card 4 appears at the observation port 21.
[0043] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.
Claims
1. A state indication structure of an electric operating mechanism, characterized in that: The invention comprises a housing (1) and a cover (2); a mounting post (22) is provided on the inner side wall of the cover (2) facing the housing (1); the mounting post (22) is arranged perpendicular to the inner side wall of the cover (2); a status indicator (3) and an elastic reset member (7) for assisting the status indicator (3) to reset are rotatably sleeved on the mounting post (22); the status indicator (3) comprises an oblique push portion (31) rotatably sleeved on the mounting shaft and an indicator portion (32) arranged on a side of the oblique push portion (31) away from the mounting shaft; the indicator portion (32) is provided on the side wall facing the cover (2); An energy release card (4) indicating an energy release state and an energy storage card (5) indicating an energy storage state are provided. An observation port (21) is provided on the cover (2). The observation port (21) is configured to match the size of a single card. A rotatable cam disc (6) is provided in the housing (1). When the cam disc (6) rotates until the protruding end contacts the side wall of the oblique push portion (31), the energy storage card (5) appears at the observation port (21). When the cam disc (6) rotates until the protruding end is away from the oblique push portion (31), the energy release card (4) appears at the observation port (21).
2. The state indication structure of the electric operating mechanism according to claim 1, characterized in that A gear shaft (8) is rotatably provided on the side of the housing (1) facing away from the cover (2), the rotating shaft of the gear shaft (8) passes through the housing (1), and a plurality of positioning pins (81) are provided on the end extending out of the housing (1), the cam disc (6) is coaxially arranged with the gear shaft (8), and a positioning hole (61) is provided on the cam disc (6) corresponding to each positioning pin (81), and the positioning holes (61) and the positioning pins (81) correspond to each other one by one and are plug-fitted.
3. The state indication structure of the electric operating mechanism according to claim 1, characterized in that A slot (33) is provided at the connection between the oblique push portion (31) and the indicating portion (32); the elastic reset member (7) is a torsion spring, which is sleeved on the mounting column (22) and located between the cover (2) and the oblique push portion (31); one end of the torsion spring is fixedly provided on the inner wall of the cover shell, and the other end passes through the slot (33) and abuts against the side wall of the slot (33).
4. The state indication structure of the electric operating mechanism according to claim 2, characterized in that A limit block (23) is provided on the inner side wall of the cover (2), and the limit block (23) is provided on the movement path of the status indicator (3). When the energy release card (4) appears at the observation port (21), the indicator (32) and the limit block (23) are in contact with each other.
5. The state indication structure of the electric operating mechanism according to claim 1, characterized in that A hanging bracket (62) is provided on the top wall of the raised end portion of the cam disc (6). When the cam disc (6) rotates until the raised end portion contacts the side wall of the oblique push portion (31), the hanging bracket (62) is synchronously contacted with the side wall of the oblique push portion (31).
6. The state indication structure of the electric operating mechanism according to claim 5, characterized in that A tension spring (9) is connected between the hanging hook (62) and the side wall of the housing (1) away from the corner of the status indicator (3). The hanging hook (62) is rotatably set on the top wall of the raised end of the cam plate (6). The end of the tension spring (9) connected to the side wall of the housing (1) is rotatably matched with the housing (1).
7. The state indication structure of an electric operating mechanism according to claim 1, characterized in that The indicating portion (32) is provided with a card slot (321) corresponding to the energy release card (4) and the energy storage card (5), and an oblique notch (3211) is provided at a corner of each of the card slots (321).
8. The state indication structure of the electric operating mechanism according to claim 7, characterized in that The status symbols on the energy release card (4) and the energy storage card (5) are both coated with fluorescent paint, and the fluorescent paint on the energy release card (4) emits light at night in a color different from that on the energy storage card (5).