Baffle rotation limiting assembly and three-phase voltage AC transducer

Abstract

This application provides a stop bar rotation limiting assembly and a three-phase AC voltage transmitter, relating to the field of electrical equipment technology. The stop bar rotation limiting assembly includes: a housing with two opposing bosses, each boss having a shaft hole; a stop bar body disposed between the two bosses; a rotating shaft on the stop bar body, coaxially arranged with the shaft hole and rotatably disposed within the shaft hole; the stop bar body has a closed state and an open state on the housing; the stop bar body also has a first engaging portion, spaced apart from the rotating shaft; a first slot is also provided on the boss; when the stop bar body is switched to the open state, the first engaging portion engages with the first slot to maintain the open state of the stop bar body. The stop bar rotation limiting assembly of this application can maintain the open state of the stop bar body, preventing accidental closure during operation and effectively ensuring the ease of operation for wiring and maintenance personnel.

Description

Technical Field

[0001] This application relates to the field of electrical equipment technology, and in particular to a stop bar rotation limit assembly and a three-phase AC voltage transmitter. Background Technology

[0002] Three-phase AC voltage transmitters are key sensing devices in industrial automation, smart grids, and energy management systems. They are used to safely and accurately convert high-voltage signals into standardized 4mA to 20mA signals that can be processed by systems such as Programmable Logic Controllers (PLCs), Distributed Control Systems (DCS), and Supervisory Control and Data Acquisition (SCADA). Their stability and reliability are directly related to production safety, process control, and energy metering accuracy.

[0003] In the prior art, in order to protect the terminal parts of a three-phase AC voltage transmitter, a barrier is usually installed on the three-phase AC voltage transmitter to protect the terminals.

[0004] However, during equipment maintenance, the stop bar is prone to accidentally closing, causing inconvenience to the maintenance operation. Utility Model Content

[0005] In view of the above problems, this application provides a stop bar rotation limit assembly and a three-phase voltage AC transmitter to solve the problem that the stop bar of the existing three-phase voltage AC transmitter is prone to accidental closure during maintenance, which brings inconvenience to maintenance operations.

[0006] To achieve the above objectives, the embodiments of this application provide the following technical solutions:

[0007] A first aspect of this application provides a stop bar rotation limiting assembly, comprising:

[0008] The housing has two oppositely arranged bosses, and the bosses are provided with shaft holes;

[0009] The baffle body is located between two bosses; the baffle body is provided with a rotating shaft, which is coaxial with the shaft hole and rotates within the shaft hole; the baffle body has a closed state and an open state on the housing.

[0010] The barrier body is also provided with a first locking part, which is spaced apart from the rotating shaft; a first slot is also provided on the boss; when the barrier body is switched to the open state, the first locking part is locked into the first slot to keep the barrier body in the open state.

[0011] In one possible implementation, a second slot is also provided on the boss; when the barrier body is switched to the closed state, the first locking part is locked into the second slot to keep the barrier body in the closed state.

[0012] In one possible implementation, the projection is made toward the boss along the axial direction of the rotating shaft, the first slot is disposed at the end of the movement trajectory of the first engaging part, and the second slot is disposed at the beginning of the movement trajectory of the first engaging part.

[0013] In one possible implementation, the boss protrudes outward with a first protrusion and a second protrusion. The first protrusion is arc-shaped and forms a first groove, and the second protrusion is arc-shaped and forms a second groove.

[0014] In one possible implementation, along the movement trajectory of the first engaging portion, a first stop portion is provided near the opening of the first slot on the first protrusion; when the first engaging portion passes the first stop portion during its movement, the first stop portion is squeezed by the first engaging portion and undergoes elastic deformation; when the first engaging portion engages in the first slot, the first stop portion returns to its initial state and prevents the first engaging portion from moving.

[0015] Along the movement trajectory of the first engaging part, a second stop part is provided near the opening of the second slot on the second protrusion; when the first engaging part passes the second stop part during its movement, the second stop part is squeezed by the first engaging part and undergoes elastic deformation; when the first engaging part is engaged in the second slot, the second stop part returns to its initial state and prevents the first engaging part from moving.

[0016] In one possible implementation, the boss is recessed inward to form a first slot and a second slot.

[0017] The boss is recessed inward to form a first sliding groove, which is connected to the first and second locking grooves. The extension direction of the first sliding groove coincides with the movement trajectory of the first locking part.

[0018] The first locking part moves along the first sliding groove.

[0019] In one possible implementation, the boss is further provided with a third stop and a fourth stop, the third stop being provided at the transition connection between the first slot and the first slide, and the fourth stop being provided at the transition connection between the second slot and the first slide.

[0020] When the first engaging part moves through the third stopping part, the third stopping part undergoes elastic deformation due to the compression of the first engaging part; when the first engaging part engages in the first slot, the third stopping part returns to its initial state and prevents the first engaging part from moving.

[0021] When the first engaging part moves through the fourth stop part, the fourth stop part undergoes elastic deformation due to the compression of the first engaging part; when the first engaging part engages in the second slot, the fourth stop part returns to its initial state and prevents the first engaging part from moving.

[0022] In one possible implementation, the stop bar body is further provided with a second snap-fit ​​portion, and the distance between the second snap-fit ​​portion and the rotating shaft is not equal to the distance between the first snap-fit ​​portion and the rotating shaft; the distance between the first slot and the shaft hole is not equal to the distance between the second slot and the shaft hole.

[0023] The first latching part latches into the first card slot, and the second latching part latches into the second card slot.

[0024] In one possible implementation, the projection is made along the axis of the rotating shaft toward the boss. The first slot is located at the end of the movement trajectory of the first locking part, and the second slot is located at the beginning of the movement trajectory of the second locking part. The movement trajectories of the first locking part and the second locking part do not coincide.

[0025] A second aspect of this application provides a three-phase AC voltage transmitter, including the stop bar rotation limiting assembly as described above.

[0026] The stop bar rotation limiting component provided in this application is rotatably mounted in the shaft hole via a rotating shaft, thereby achieving a rotatable connection between the stop bar body and the boss. By providing a first engaging part on the stop bar body and a first slot on the boss, when the stop bar body is switched to the open state during rotation, the first engaging part engages with the first slot, thereby maintaining the open state of the stop bar body and preventing the stop bar body from accidentally closing during operation. This avoids obstruction for wiring maintenance personnel due to the sudden closure of the stop bar body, effectively ensuring the ease of operation for wiring maintenance personnel.

[0027] In addition to the technical problems solved by the embodiments of this application, the technical features constituting the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions described above, other technical problems that can be solved by the stop bar rotation limiting component and the three-phase voltage AC transmitter provided by the embodiments of this application, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further explained in detail in the specific implementation. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 A perspective view of the stop bar rotation limiting component provided in the embodiment of this application in the open state of the stop bar body;

[0030] Figure 2 A perspective view of the stop bar rotation limiting component provided in the embodiment of this application in the closed state of the stop bar body;

[0031] Figure 3 A top view of the stop bar rotation limiting assembly provided in the first embodiment of this application;

[0032] Figure 4 for Figure 3 Sectional view of section AA;

[0033] Figure 5 A top view of the stop bar rotation limiting assembly provided in the second embodiment of this application;

[0034] Figure 6 for Figure 5 Sectional view of section BB;

[0035] Figure 7 for Figure 5 A perspective view of the baffle body shown;

[0036] Figure 8 for Figure 7 A magnified view of a portion of point C in the middle;

[0037] Figure 9 for Figure 5 A partial view of the boss shown in a stereoscopic perspective;

[0038] Figure 10 A cross-sectional view of the stop bar rotation limiting assembly provided in the third embodiment of this application;

[0039] Figure 11 This is a cross-sectional view of the stop bar rotation limiting assembly provided in the fourth embodiment of this application.

[0040] Explanation of reference numerals in the attached figures:

[0041] 100. Housing; 10. Boss; 101. Shaft hole; 102. First slot; 103. Second slot; 104. First slide groove; 105. Second slide groove; 11. First protrusion; 12. Second protrusion; 13. First stop part; 14. Second stop part; 15. Third stop part; 16. Fourth stop part;

[0042] 20. Stop bar body; 21. Rotating shaft; 22. First locking part; 23. Second locking part. Detailed Implementation

[0043] First, those skilled in the art should understand that these embodiments are merely for explaining the technical principles of this application and are not intended to limit the scope of protection of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0044] Secondly, it should be noted that, in the description of the embodiments of this application, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0045] As described in the background section, the three-phase AC voltage transmitter in the related art has the problem that the stop bar is prone to accidental closure during maintenance, which brings inconvenience to maintenance operations.

[0046] To address the aforementioned technical problems, this application provides a stop bar rotation limiting assembly and a three-phase AC voltage transmitter. The stop bar rotation limiting assembly includes: a housing with two opposing bosses, each boss having a shaft hole; a stop bar body disposed between the two bosses; a rotating shaft disposed on the stop bar body, coaxially arranged with the shaft hole and rotatably disposed within the shaft hole; the stop bar body has a closed state and an open state on the housing; a first engaging portion is also provided on the stop bar body, spaced apart from the rotating shaft; a first slot is also provided on the boss; when the stop bar body is switched to the open state, the first engaging portion engages with the first slot to maintain the open state of the stop bar body.

[0047] The stop bar rotation limiting component provided in this application is rotatably mounted in the shaft hole via a rotating shaft, thereby achieving a rotatable connection between the stop bar body and the boss. By providing a first engaging part on the stop bar body and a first slot on the boss, when the stop bar body is switched to the open state during rotation, the first engaging part engages with the first slot, thereby maintaining the open state of the stop bar body and preventing the stop bar body from accidentally closing during operation. This avoids obstruction for wiring maintenance personnel due to the sudden closure of the stop bar body, effectively ensuring the ease of operation for wiring maintenance personnel.

[0048] To make the above-mentioned objectives, features, and advantages of the embodiments of this application more apparent and understandable, 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 a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0049] Please refer to Figures 1-11 The first aspect of this application provides a stop bar rotation limiting assembly, comprising:

[0050] The housing 100 has two oppositely arranged bosses 10, and the bosses 10 are provided with shaft holes 101;

[0051] The baffle body 20 is disposed between two bosses 10; the baffle body 20 is provided with a rotating shaft 21, which is coaxially disposed with the shaft hole 101 and is rotatably disposed in the shaft hole 101; the baffle body 20 has a closed state and an open state on the housing 100.

[0052] The barrier body 20 is also provided with a first engaging part 22, which is spaced apart from the rotating shaft 21; the boss 10 is also provided with a first slot 102; when the barrier body 20 is switched to the open state, the first engaging part 22 engages in the first slot 102 to keep the barrier body 20 in the open state.

[0053] It should be noted that, please refer to Figure 1 As shown, terminals are provided on the housing 100, and the terminals are exposed when the stop bar body 20 is in the open state, facilitating maintenance by operators; please refer to Figure 2 As shown, the barrier body 20 can protect the terminals when it is closed.

[0054] The stop bar rotation limiting component provided in this application is rotatably mounted in the shaft hole 101 via a rotating shaft 21, thereby realizing the rotational connection between the stop bar body 20 and the boss 10. By providing a first engaging part 22 on the stop bar body 20 and a first slot 102 on the boss 10, when the stop bar body 20 is switched to the open state during rotation, the first engaging part 22 engages with the first slot 102, thereby maintaining the open state of the stop bar body 20 and preventing the stop bar body 20 from accidentally closing during operation. This avoids obstruction to wiring maintenance personnel due to the sudden closure of the stop bar body 20, effectively ensuring the ease of operation for wiring maintenance personnel.

[0055] Furthermore, the baffle body 20, the rotating shaft 21, and the first snap-fit ​​part 22 can be integrally formed.

[0056] In one possible implementation, the boss 10 is also provided with a second slot 103; when the stop bar body 20 is switched to the closed state, the first locking part 22 is locked into the second slot 103 to keep the stop bar body 20 in the closed state.

[0057] In this embodiment, by providing a second slot 103 on the boss 10, when the baffle body 20 is switched to the closed state during rotation, the first engaging part 22 engages with the second slot 103, thereby maintaining the closed state of the baffle body 20, ensuring that the baffle body 20 will not be accidentally opened after being closed, ensuring the effectiveness of protection, reducing the impact of external factors on the internal components of the equipment, extending the service life of the equipment, and reducing the probability of failure.

[0058] Furthermore, by engaging the first latching part 22 within the first latching slot 102, the stop bar body 20 is kept in the open state, preventing accidental closure during operation. By engaging the first latching part 22 within the second latching slot 103, the stop bar body 20 is kept in the closed state, ensuring that it will not accidentally open after being closed. This ensures the stability of the stop bar body 20, eliminating the need for frequent handling of accidental opening and closing of the stop bar body 20 during maintenance, reducing unnecessary operation steps, shortening maintenance time, and improving operational efficiency.

[0059] In one possible implementation, please see Figure 4 and Figure 6 As shown, the projection along the axis of the rotating shaft 21 toward the boss 10 is shown. The first slot 102 is provided at the end of the movement trajectory of the first locking part 22, and the second slot 103 is provided at the beginning of the movement trajectory of the first locking part 22.

[0060] In this embodiment, the first slot 102 is located at the end of the movement trajectory of the first engaging part 22, and the second slot 103 is located at the beginning of the movement trajectory of the first engaging part 22. During the opening and closing process of the stop bar body 20, it is only necessary to engage the first engaging part 22 with the first slot 102 or the second slot 103 to maintain the open or closed state of the stop bar body 20. This helps to simplify the structure of the stop bar rotation limiting component and reduce manufacturing difficulty.

[0061] In one possible implementation, please see Figure 4 As shown, the boss 10 has a first protrusion 11 and a second protrusion 12 protruding outward. The first protrusion 11 is arc-shaped and surrounds to form a first slot 102, and the second protrusion 12 is arc-shaped and surrounds to form a second slot 103.

[0062] In this embodiment, by providing a first protrusion 11 and a second protrusion 12 on the boss 10, the first protrusion 11 surrounds and forms a first slot 102, and the second protrusion 12 surrounds and forms a second slot 103. During the rotation of the stop bar body 20, when the stop bar body 20 is switched to the open state, it is engaged in the first slot 102 by the first engaging part 22, thereby maintaining the open state of the stop bar body 20 and preventing the stop bar body 20 from being accidentally closed during operation; when the stop bar body 20 is switched to the closed state, it is engaged in the second slot 103 by the first engaging part 22, thereby maintaining the closed state of the stop bar body 20 and ensuring that the stop bar body 20 will not be accidentally opened after being closed, thus ensuring the effectiveness of the protection.

[0063] Furthermore, the first protrusion 11 and the second protrusion 12 can be integrally formed with the boss 10.

[0064] In one possible implementation, please see Figure 4 As shown, along the movement trajectory of the first engaging portion 22, a first stop portion 13 is provided at the opening position of the first protrusion 11 near the first slot 102; when the first engaging portion 22 passes the first stop portion 13 during its movement, the first stop portion 13 is squeezed by the first engaging portion 22 and undergoes elastic deformation; when the first engaging portion 22 engages in the first slot 102, the first stop portion 13 returns to its initial state and prevents the first engaging portion 22 from moving.

[0065] Along the movement trajectory of the first engaging portion 22, the second protrusion 12 is provided with a second stop portion 14 near the opening of the second slot 103; when the first engaging portion 22 passes the second stop portion 14 during its movement, the second stop portion 14 is squeezed by the first engaging portion 22 and undergoes elastic deformation; when the first engaging portion 22 engages in the second slot 103, the second stop portion 14 returns to its initial state and prevents the first engaging portion 22 from moving.

[0066] In this embodiment, by providing a first stop portion 13 on the first protrusion 11, when the first engaging portion 22 engages in the first slot 102, the first stop portion 13 locks the first engaging portion 22, thereby maintaining the open state of the barrier body 20. Whenever the first engaging portion 22 passes the first stop portion 13, the first stop portion 13 is squeezed by the first engaging portion 22 and undergoes elastic deformation. When the first engaging portion 22 no longer squeezes the first stop portion 13, the first stop portion 13 returns to its initial state. The first stop portion 13 can work repeatedly and can ensure the open state of the barrier body 20.

[0067] By providing a second stop portion 14 on the first protrusion 11, when the first engaging portion 22 engages in the second slot 103, the first engaging portion 22 is locked by the second stop portion 14; whenever the first engaging portion 22 passes the second stop portion 14, the second stop portion 14 is squeezed by the first engaging portion 22 and undergoes elastic deformation, and when the first engaging portion 22 no longer squeezes the second stop portion 14, the second stop portion 14 returns to its initial state, the second stop portion 14 can work repeatedly, and the closed state of the stop bar body 20 can be ensured.

[0068] In one possible implementation, please see Figure 6 As shown, the boss 10 is recessed inward to form a first slot 102 and a second slot 103;

[0069] The boss 10 is recessed inward to form a first groove 104. The first groove 104 is connected to the first slot 102 and the second slot 103. The extension direction of the first groove 104 coincides with the movement trajectory of the first locking part 22.

[0070] The first locking part 22 moves along the first sliding groove 104.

[0071] In this embodiment, by providing a first slot 102, a second slot 103, and a first sliding groove 104 on the boss 10, the first sliding groove 104 communicates with the first slot 102 and the second slot 103. During the rotation of the stop bar body 20, the first sliding groove 104 can guide the first engaging part 22 to ensure the stability of the opening and closing of the stop bar body 20. When the first engaging part 22 moves along the first sliding groove 104 into the first slot 102, the first engaging part 22 can engage in the first slot 102, thereby maintaining the open state of the stop bar body 20 and preventing the stop bar body 20 from accidentally closing during operation. When the first engaging part 22 moves along the first sliding groove 104 into the second slot 103, the first engaging part 22 can engage in the second slot 103, thereby maintaining the closed state of the stop bar body 20 and ensuring the effectiveness of the protection.

[0072] In one possible implementation, please see Figure 6 As shown, the boss 10 is also provided with a third stop part 15 and a fourth stop part 16. The third stop part 15 is provided at the transition connection between the first slot 102 and the first slide groove 104, and the fourth stop part 16 is provided at the transition connection between the second slot 103 and the first slide groove 104.

[0073] When the first engaging part 22 moves through the third stop part 15, the third stop part 15 is squeezed by the first engaging part 22 and undergoes elastic deformation; when the first engaging part 22 engages in the first slot 102, the third stop part 15 returns to its initial state and prevents the first engaging part 22 from moving.

[0074] When the first engaging part 22 moves through the fourth stop part 16, the fourth stop part 16 undergoes elastic deformation due to the compression of the first engaging part 22; when the first engaging part 22 engages in the second slot 103, the fourth stop part 16 returns to its initial state and prevents the first engaging part 22 from moving.

[0075] In this embodiment, a third stop portion 15 is provided at the transition connection between the first slot 102 and the first slide groove 104. When the first engaging portion 22 engages in the first slot 102, the third stop portion 15 locks the first engaging portion 22, thereby maintaining the open state of the stop bar body 20. Whenever the first engaging portion 22 passes the third stop portion 15, the third stop portion 15 is squeezed by the first engaging portion 22 and undergoes elastic deformation. When the first engaging portion 22 no longer squeezes the third stop portion 15, the third stop portion 15 returns to its initial state. The third stop portion 15 can work repeatedly and ensure the open state of the stop bar body 20.

[0076] By providing a fourth stop portion 16 at the transition connection between the second slot 103 and the first slide groove 104, when the first engaging portion 22 engages in the second slot 103, the fourth stop portion 16 locks the first engaging portion 22. Whenever the first engaging portion 22 passes the fourth stop portion 16, the fourth stop portion 16 is squeezed by the first engaging portion 22 and undergoes elastic deformation. When the first engaging portion 22 no longer squeezes the fourth stop portion 16, the fourth stop portion 16 returns to its initial state. The fourth stop portion 16 can work repeatedly and ensures the closed state of the stop bar body 20.

[0077] In one possible implementation, please see Figure 10 and Figure 11 As shown, the stop bar body 20 is also provided with a second snap-fit ​​part 23, and the distance between the second snap-fit ​​part 23 and the rotating shaft 21 is not equal to the distance between the first snap-fit ​​part 22 and the rotating shaft 21; the distance between the first slot 102 and the shaft hole 101 is not equal to the distance between the second slot 103 and the shaft hole 101.

[0078] The first latching part 22 latches with the first latching slot 102, and the second latching part 23 latches with the second latching slot 103.

[0079] In this embodiment, by providing independent first engaging portion 22 and second engaging portion 23 on the barrier body 20, and independent first slot 102 and second slot 103 on the boss 10, the movement trajectory of the first engaging portion 22 and the movement trajectory of the second engaging portion 23 do not overlap, and the movements of the first engaging portion 22 and the second engaging portion 23 do not interfere with each other. When the barrier body 20 is switched to the open state, the first engaging portion 22 engages with the first slot 102, thereby maintaining the open state of the barrier body 20 and preventing the barrier body 20 from accidentally closing during operation. When the barrier body 20 is switched to the closed state, the second engaging portion 23 engages with the second slot 103, thereby maintaining the closed state of the barrier body 20 and ensuring that the barrier body 20 will not accidentally open after being closed, thus ensuring the effectiveness of the protection.

[0080] Furthermore, the baffle body 20 and the second snap-fit ​​part 23 can be an integrally formed structure.

[0081] In one possible implementation, please see Figure 10 and Figure 11 As shown, the first slot 102 is located at the end of the movement trajectory of the first locking part 22, and the second slot 103 is located at the beginning of the movement trajectory of the second locking part 23. The movement trajectories of the first locking part 22 and the second locking part 23 do not coincide.

[0082] In this embodiment, the first slot 102 is located at the end of the movement trajectory of the first engaging part 22. When the barrier bar body 20 is switched to the open state, it engages with the first slot 102 through the first engaging part 22, thereby maintaining the open state of the barrier bar body 20 and preventing the barrier bar body 20 from accidentally closing during operation. The second slot 103 is located at the beginning of the movement trajectory of the second engaging part 23. When the barrier bar body 20 is switched to the closed state, it engages with the second slot 103 through the second engaging part 23, thereby maintaining the closed state of the barrier bar body 20 and ensuring that the barrier bar body 20 will not accidentally open after being closed, thus ensuring the effectiveness of the protection.

[0083] Further, please see Figure 10 As shown, the boss 10 has a first protrusion 11 and a second protrusion 12 protruding outward. The first protrusion 11 is located at the end of the movement trajectory of the first latching part 22, and the second protrusion 12 is located at the beginning of the movement trajectory of the second latching part 23. The first protrusion 11 is arc-shaped and surrounds to form a first latching groove 102, and the second protrusion 12 is arc-shaped and surrounds to form a second latching groove 103.

[0084] Further, please see Figure 11As shown, the boss 10 is recessed inward to form a first slot 102 and a first sliding groove 104, as well as a second slot 103 and a second sliding groove 105;

[0085] The first slide groove 104 is connected to the first slot 102, and the extension direction of the first slide groove 104 coincides with the movement trajectory of the first locking part 22; the second slide groove 105 is connected to the second slot 103, and the extension direction of the second slide groove 105 coincides with the movement trajectory of the second locking part 23.

[0086] The first locking part 22 moves along the first slide groove 104, and the second locking part 23 moves along the second slide groove 105.

[0087] A second aspect of this application also provides a three-phase AC voltage transmitter, including the stop bar rotation limiting assembly as described above.

[0088] Given that the three-phase voltage AC transmitter in this embodiment includes the bar rotation limiting component described in any of the above embodiments, the structure and beneficial effects of the bar rotation limiting component in the three-phase voltage AC transmitter will not be elaborated further in this embodiment.

[0089] The various embodiments or implementation methods described in this specification are presented in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0090] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0091] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A stop bar rotation limiting assembly, characterized in that, include: The housing (100) has two opposing bosses (10), and the bosses (10) are provided with shaft holes (101); A baffle body (20) is disposed between the two protrusions (10); a rotating shaft (21) is provided on the baffle body (20), the rotating shaft (21) is coaxially disposed with the shaft hole (101), and the rotating shaft (21) is rotatably disposed in the shaft hole (101); the baffle body (20) has a closed state and an open state on the housing (100); The baffle body (20) is also provided with a first snap-fit ​​part (22), which is spaced apart from the rotating shaft (21); the boss (10) is also provided with a first slot (102); when the baffle body (20) is switched to the open state, the first snap-fit ​​part (22) is snapped into the first slot (102) to maintain the open state of the baffle body (20).

2. The stop bar rotation limiting assembly according to claim 1, characterized in that, The boss (10) is also provided with a second slot (103); when the stop bar body (20) is switched to the closed state, the first locking part (22) is locked in the second slot (103) to keep the stop bar body (20) in the closed state.

3. The stop bar rotation limiting assembly according to claim 2, characterized in that, Projecting along the axis of the rotating shaft (21) toward the boss (10), the first slot (102) is disposed at the end of the movement trajectory of the first locking part (22), and the second slot (103) is disposed at the beginning of the movement trajectory of the first locking part (22).

4. The stop bar rotation limiting assembly according to claim 3, characterized in that, The boss (10) is provided with a first protrusion (11) and a second protrusion (12) protruding outward. The first protrusion (11) is arc-shaped and forms the first slot (102), and the second protrusion (12) is arc-shaped and forms the second slot (103).

5. The stop bar rotation limiting assembly according to claim 4, characterized in that, Along the movement trajectory of the first latching part (22), the first protrusion (11) is provided with a first stop part (13) near the opening of the first slot (102); when the first latching part (22) passes the first stop part (13) during its movement, the first stop part (13) is squeezed by the first latching part (22) and undergoes elastic deformation; when the first latching part (22) is latched in the first slot (102), the first stop part (13) returns to its initial state and prevents the first latching part (22) from moving; Along the movement trajectory of the first latching part (22), the second protrusion (12) is provided with a second stop part (14) near the opening of the second slot (103); when the first latching part (22) moves through the second stop part (14), the second stop part (14) is squeezed by the first latching part (22) and undergoes elastic deformation; when the first latching part (22) is latched in the second slot (103), the second stop part (14) returns to its initial state and prevents the first latching part (22) from moving.

6. The stop bar rotation limiting assembly according to claim 3, characterized in that, The boss (10) is recessed inward to form the first slot (102) and the second slot (103); The protrusion (10) is recessed inward to form a first groove (104), which is connected to the first slot (102) and the second slot (103). The extension direction of the first groove (104) coincides with the movement trajectory of the first locking part (22). The first snap-fit ​​portion (22) moves along the first slide groove (104).

7. The stop bar rotation limiting assembly according to claim 6, characterized in that, The boss (10) is also provided with a third stop part (15) and a fourth stop part (16). The third stop part (15) is provided at the transition connection between the first slot (102) and the first slide (104), and the fourth stop part (16) is provided at the transition connection between the second slot (103) and the first slide (104). When the first latching part (22) passes through the third stop part (15) during its movement, the third stop part (15) is squeezed by the first latching part (22) and undergoes elastic deformation; when the first latching part (22) is latched in the first slot (102), the third stop part (15) returns to its initial state and prevents the first latching part (22) from moving. When the first latching part (22) moves through the fourth stop part (16), the fourth stop part (16) is squeezed by the first latching part (22) and undergoes elastic deformation; when the first latching part (22) is latched in the second slot (103), the fourth stop part (16) returns to its initial state and prevents the first latching part (22) from moving.

8. The stop bar rotation limiting assembly according to claim 2, characterized in that, The stop bar body (20) is also provided with a second snap-fit ​​part (23), and the distance between the second snap-fit ​​part (23) and the rotating shaft (21) is not equal to the distance between the first snap-fit ​​part (22) and the rotating shaft (21); the distance between the first slot (102) and the shaft hole (101) is not equal to the distance between the second slot (103) and the shaft hole (101); The first snap-fit ​​part (22) snaps into the first card slot (102), and the second snap-fit ​​part (23) snaps into the second card slot (103).

9. The stop bar rotation limiting assembly according to claim 8, characterized in that, Projecting along the axis of the rotating shaft (21) toward the boss (10), the first slot (102) is located at the end of the movement trajectory of the first locking part (22), and the second slot (103) is located at the beginning of the movement trajectory of the second locking part (23), and the movement trajectory of the first locking part (22) and the movement trajectory of the second locking part (23) do not coincide.

10. A three-phase AC voltage transmitter, characterized in that, Includes the stop bar rotation limiting assembly as described in any one of claims 1 to 9 above.

Images