A mistaken insertion prevention structure

Abstract

The embodiment of the utility model provides a kind of anti-misplug structure, it is related to low voltage electrical apparatus technical field.The utility model provides a kind of anti-misplug structure including circuit breaker body, with movable operating mechanism;Base has the containing groove for accommodating circuit breaker body, and the containing groove has the positioning structure on groove wall;Linkage, linkage is movably arranged in circuit breaker body, and one end of linkage is linked with operating mechanism, and the other end of linkage extends towards circuit breaker body outside;Operating mechanism is used to resist the case where linkage and groove wall, hinder circuit breaker body closing;And it is used to cooperate when linkage and positioning structure, remove the hindrance to circuit breaker body closing.The utility model provides anti-misplug structure has prevented circuit breaker body and caused functional failure on base misplug, improves the use safety of circuit breaker.

Description

Technical Field

[0001] This utility model relates to the field of low-voltage electrical technology, and more specifically, to a structure for preventing misinsertion. Background Technology

[0002] A circuit breaker is a switching device capable of closing, carrying, and interrupting current under normal circuit conditions, and capable of closing, carrying, and interrupting current under abnormal circuit conditions within a specified time. When faults such as leakage, overload, or short circuit occur in a power system, it can quickly disconnect the faulty component in the power system or cut off the entire power supply to prevent the fault from escalating and avoid significant economic losses and casualties.

[0003] A circuit breaker typically includes a base and a circuit breaker body that can be detachably plugged into the base. When the circuit breaker body is plugged into the multi-pole base, there is a risk of mis-plugging, which may lead to phase loss and / or zero loss, resulting in the circuit breaker burning out, as well as the failure of protection functions due to mis-plugging. Utility Model Content

[0004] The purpose of this utility model is to provide an anti-misinsertion structure, which can prevent the circuit breaker body from being misinserted on the base, thus preventing functional failure and improving the safety of the circuit breaker.

[0005] The embodiments of this utility model can be implemented as follows:

[0006] In a first aspect, this utility model provides a structure to prevent misinsertion, comprising:

[0007] The circuit breaker body has a movable operating mechanism;

[0008] The base has a receiving groove for accommodating the circuit breaker body, and the groove wall has a positioning structure;

[0009] A linkage component is movably disposed within the circuit breaker body. One end of the linkage component is linked to the operating mechanism, and the other end of the linkage component extends outward toward the circuit breaker body.

[0010] The signal terminal includes a first terminal disposed on the circuit breaker body and a second terminal disposed on the slot wall, wherein the first terminal and the second terminal cooperate with each other;

[0011] The operating mechanism is used to prevent the circuit breaker body from closing when the linkage abuts against the groove wall; and to remove the obstruction to closing the circuit breaker body when the linkage cooperates with the positioning structure.

[0012] In an optional embodiment, the operating mechanism is provided on each pole of the circuit breaker body, and only one of the first terminal and the linkage is provided on the circuit breaker body.

[0013] In an optional embodiment, the first terminal and the linkage are disposed on the same pole of the circuit breaker body.

[0014] In an optional embodiment, the first terminal is not higher than the surface of the circuit breaker body, and the second terminal protrudes from the groove wall.

[0015] In an optional embodiment, the linkage includes a holding part and a linkage part connected at a preset angle, one end of the holding part is provided with an abutting part that cooperates with the positioning structure, and the linkage part cooperates with the operating mechanism.

[0016] In an optional embodiment, the positioning structure includes a groove recessed into the groove wall, and when the circuit breaker body is inserted into the receiving groove, the abutting portion engages with the groove.

[0017] In an optional embodiment, the linkage further includes a rotating shaft, and both the holding part and the linkage part are connected to the rotating shaft, which is rotatably connected to the circuit breaker body.

[0018] In an optional implementation, the preset angle is an obtuse angle.

[0019] The abutting part has an abutting surface, which is used to engage with the top wall of the groove when the abutting part is engaged in the groove.

[0020] In an optional embodiment, the groove wall includes a supporting surface, an upper engaging surface and a lower engaging surface connected to both ends of the supporting surface, and the positioning structure is provided on at least one of the upper engaging surface and the lower engaging surface.

[0021] The beneficial effects of the anti-misinsertion structure provided in this embodiment of the utility model include:

[0022] By installing a positioning structure on the base and a linkage component inside the circuit breaker body, when the linkage component abuts against the wall of the receiving slot, the operating mechanism prevents the circuit breaker body from closing; conversely, when the linkage component engages with the positioning structure, the operating mechanism releases the obstruction to the circuit breaker body's closing. When the circuit breaker body is inserted into the receiving slot, if the circuit breaker is not inserted correctly or not fully inserted, the linkage component cannot engage with the positioning structure, preventing the circuit breaker body from closing when not correctly inserted, thus preventing misinsertion. Furthermore, matching signal terminals are provided on both the base and the circuit breaker to further prevent misinsertion and avoid phase loss and / or zero loss in the circuit breaker. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model 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.

[0024] Figure 1 A schematic diagram of the anti-misinsertion structure provided in the embodiment of this utility model;

[0025] Figure 2 A schematic diagram of the structure of the base provided in an embodiment of this utility model;

[0026] Figure 3 This is a schematic diagram of the structure of the circuit breaker body provided in an embodiment of the present utility model;

[0027] Figure 4 A cross-sectional view of the anti-misinsertion structure provided in this embodiment of the present invention in the state of misinsertion;

[0028] Figure 5 A cross-sectional view of the anti-misinsertion structure provided in this embodiment of the present invention in its normal insertion state;

[0029] Figure 6 This utility model provides a schematic diagram of the linkage component.

[0030] Icons: 100-Circuit breaker body; 110-Operating mechanism; 120-Single-pole circuit breaker module; 130-First terminal; 200-Base; 210-Receiving groove; 220-Positioning structure; 221-Groove; 230-Second terminal; 240-Abutting surface; 250-Upper locking surface; 260-Lower locking surface; 300-Linking component; 311-Holding part; 312-Linking part; 313-Abutting part; 3131-Abutting surface; 3132-Abutting surface; 314-Rotating shaft. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0033] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0034] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0035] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0036] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0037] Circuit breakers are core electrical safety devices, widely used in residential buildings, public facilities, and industrial manufacturing. Circuit breakers include single-pole (1P) and multi-pole (2P / 3P / 4P) types, and generally consist of a base and a detachable circuit breaker body that plugs into the base. However, there is a risk of mis-insertion when plugging the circuit breaker body into a multi-pole base. This means the circuit breaker body may not be inserted into the corresponding position on the base, or the phase sequence of the base may be inconsistent with the phase sequence of the circuit breaker, resulting in a phase loss and / or a zero loss in the circuit breaker body.

[0038] To address the risk of mis-insertion when the circuit breaker body is plugged into the multi-pole base, which can lead to circuit breaker malfunction, this invention provides a mis-insertion prevention structure. The overall structure, working principle, and technical effects of the mis-insertion prevention structure provided by this invention are described in detail below with reference to embodiments and accompanying drawings.

[0039] Please refer to Figures 1-6 This utility model provides an anti-misinsertion structure. The anti-misinsertion structure provided by this utility model has an anti-misinsertion function to avoid misalignment when the circuit breaker body 100 is inserted into the base 200, which may lead to phase loss and / or zero loss of the circuit breaker and the risk of burnout at the equipment end.

[0040] Please refer to Figures 1-3 The anti-misinsertion structure provided by this utility model includes a circuit breaker body 100 and a base 200. The circuit breaker body 100 is the core component of the circuit breaker, responsible for circuit connection, disconnection, and fault protection. The base 200 is used to fix and support the circuit breaker body 100 and provides an interface for electrical connection or mechanical operation. A receiving groove 210 for accommodating the circuit breaker body 100 is provided on the base 200. In use, the circuit breaker body 100 is inserted into the receiving groove 210 of the base 200 to realize the installation of the circuit breaker. Figure 4 and Figure 5 In this embodiment, a movable operating mechanism 110 is provided within the circuit breaker body 100. An operator can close and open the circuit breaker by driving the operating mechanism 110. The anti-misinsertion structure also includes a linkage 300, which is disposed within the circuit breaker body 100. One end of the linkage 300 is linked to the operating mechanism 110, and the other end extends outside the circuit breaker body 100. A positioning structure 220 is provided on the wall of the receiving groove 210, and the positioning structure 220 is adapted to the linkage 300. During the insertion of the circuit breaker body 100 into the receiving groove 210, when the linkage 300 abuts against the wall of the receiving groove 210, the linkage 300 hinders the movement of the operating mechanism 110, thus preventing the circuit breaker body 100 from closing. When the end of the linkage 300 located outside the circuit breaker body 100 engages with the positioning structure 220, the linkage 300 releases its obstruction to the operating mechanism 110, allowing the operator to close the circuit breaker body 100. Simultaneously, the anti-misinsertion structure provided by this utility model also includes signal terminals, comprising a first terminal 130 and a second terminal 230. The first terminal 130 is disposed on the circuit breaker body 100, and the second terminal 230 is disposed on the groove wall of the receiving groove 210, with the first terminal 130 and the second terminal 230 engaging. Furthermore, the first terminal 130 does not protrude above the surface of the circuit breaker body 100, while the second terminal 230 protrudes from the groove wall.

[0041] By setting a positioning structure 220 on the base 200 and a linkage 300 inside the circuit breaker body 100, when the linkage 300 abuts against the wall of the receiving groove 210, the operating mechanism 110 prevents the circuit breaker body 100 from closing; and when the linkage 300 cooperates with the positioning structure 220, the operating mechanism 110 releases the obstruction to the closing of the circuit breaker body 100. When the circuit breaker body 100 is inserted into the receiving groove 210, the linkage 300 cannot cooperate with the positioning structure 220 when the circuit breaker is not inserted into the correct position or is not fully inserted, thus preventing the circuit breaker body 100 from closing when not inserted into the correct position, achieving the function of preventing circuit breaker misinsertion.

[0042] Please refer to Figure 3 In some optional embodiments, when the circuit breaker is multi-pole, the circuit breaker body 100 includes at least two single-pole breaking modules 120, that is, the circuit breaker body 100 may include two single-pole breaking modules 120 (2P), three single-pole breaking modules 120 (3P), or four single-pole breaking modules 120 (4P). When the circuit breaker is multi-pole, the operating mechanism 110 is provided in all of the multiple single-pole breaking modules 120, while the linkage 300 and the first terminal 130 are only provided on the circuit breaker body 100. Furthermore, the first terminal 130 and the linkage 300 are provided on the same pole of the same circuit breaker body 100, that is, the first terminal 130 and the linkage 300 are provided in the same single-pole breaking module 120.

[0043] Furthermore, when the circuit breaker is a 4P multi-pole circuit breaker, both the linkage 300 and the first terminal 130 are located at the N pole of the circuit breaker body 100. In this embodiment, the first terminal 130 is recessed, and the second terminal 230 is protruding, thereby preventing the L-pole circuit breaker from being mistakenly inserted into the N-pole position of the base. When the N pole of the 4P multi-pole circuit breaker is not inserted, i.e., when the N-pole circuit breaker is inserted into the L-pole position of the base, the linkage 300 abuts against the groove wall of the receiving groove 210, and the operating mechanism 110 prevents the circuit breaker body 100 from closing, thereby avoiding the risk of equipment burnout due to the N pole not being inserted, i.e., the N phase being missing, resulting in a 380V voltage at the equipment end. When the N pole is inserted, if any of the other three phases is not inserted, the missing phase can be identified through the signal terminal, protecting electrical safety.

[0044] Please refer to Figures 4-6 In some optional embodiments, the linkage 300 is rotatably disposed within the circuit breaker body 100. One end of the linkage 300 is linked to the operating mechanism 110, and the other end of the linkage 300 can rotate to extend outside the circuit breaker body 100. The positioning structure 220 includes a groove 221 recessed in the groove wall. When the circuit breaker body 100 is correctly inserted into the receiving groove 210 and inserted into place, the linkage 300 cooperates with the groove 221. Specifically, the linkage 300 is engaged in the groove 221. Further, in order to achieve the effect of the linkage 300 being engaged in the groove 221, the linkage 300 includes a holding part 311 and a linkage part 312 connected at a preset angle. The preset angle is an obtuse angle. One end of the holding part 311 is provided with an abutment part 313 adapted to the groove 221. The linkage part 312 is linked to the operating mechanism 110. Specifically, the linkage part 312 cooperates with the operating mechanism 110.

[0045] In the initial state, the abutment part 313 extends beyond the circuit breaker body 100. When the circuit breaker body 100 is inserted into the receiving groove 210 on the base 200, the abutment part 313 abuts against the base 200 and moves into the circuit breaker body 100, driving the linkage 300 to rotate. At this time, the linkage part 312 abuts against the operating mechanism 110, hindering the movement of the operating mechanism 110 and preventing the circuit breaker body 100 from closing. When the circuit breaker body 100 moves to the point where the abutment part 313 engages with the groove 221, the linkage 300 can rotate until the abutment part 313 is engaged in the groove 221. At this time, the linkage part 312 releases its obstruction to the movement of the operating mechanism 110, allowing the operator to close the circuit breaker through the operating mechanism 110.

[0046] Please refer to Figures 4-6 In some optional embodiments, in order to facilitate the rotation of the linkage 300 within the circuit breaker body 100, the linkage 300 further includes a rotating shaft 314. The holding part 311 and the linkage part 312 are both connected to the rotating shaft 314. The rotating shaft 314 is rotatably connected to the circuit breaker body 100. The rotating shaft 314 serves as the rotation axis of the linkage 300. When the abutment part 313 is driven to move, the linkage part 312 can rotate accordingly, thereby realizing the linkage with the operating mechanism 110.

[0047] Please refer to Figure 6 In some optional embodiments, the abutment portion 313 has an abutment surface 3132 and a contact surface 3131. When the circuit breaker body 100 is inserted into the receiving groove 210, the inclined contact surface 3131 first abuts against the base 200. As the circuit breaker body 100 continues to be inserted into the receiving groove 210, the base 200 abuts against the contact surface 3131 and presses the contact surface 3131 into the circuit breaker body 100. After the circuit breaker body 100 is inserted into place, the abutment portion 313 can move into the groove 221. At this time, the abutment surface 3132 of the abutment portion 313 is located below the top wall of the groove 221.

[0048] Please refer to Figure 1 In some alternative embodiments, the groove wall includes a support surface 240, an upper engaging surface 250 and a lower engaging surface 260 connected to both ends of the support surface 240, wherein a groove 221 is provided on at least one of the upper engaging surface 250 and the lower engaging surface 260, and a linkage 300 adapted to the groove 221 is provided in the circuit breaker body 100.

[0049] It is understood that in some optional embodiments, the groove 221 can be formed on the upper contact surface 250 or the lower contact surface 260, or the groove 221 can be formed on both the upper contact surface 250 and the lower contact surface 260 simultaneously. Correspondingly, a linkage 300 corresponding to the groove 221 is provided in the circuit breaker body 100. This ensures that the circuit breaker body 100 cannot be closed in the event of misinsertion or improper insertion, achieving the effect of preventing misinsertion and improving the safety of the circuit breaker.

[0050] In summary, the implementation principle of the anti-misinsertion structure provided by this utility model is as follows: A positioning structure 220 is provided on the base 200, and a linkage 300 is provided inside the circuit breaker body 100. When the linkage 300 abuts against the wall of the receiving groove 210, it hinders the movement of the operating mechanism 110, thereby preventing the circuit breaker body 100 from closing. When the linkage 300 cooperates with the positioning structure 220, it releases the obstruction to the operating mechanism 110, thereby releasing the obstruction to the closing of the circuit breaker body 100. When the circuit breaker body 100 is inserted into the receiving groove 210, if the circuit breaker is not inserted into the correct position or is not fully inserted, the linkage 300 cannot cooperate with the positioning structure 220, preventing the circuit breaker body 100 from closing when not correctly inserted, thus achieving the function of preventing circuit breaker misinsertion.

[0051] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A misplug prevention structure, characterized by comprising: include: The circuit breaker body (100) has a movable operating mechanism (110). The base (200) has a receiving groove (210) for accommodating the circuit breaker body (100), and the groove wall of the receiving groove (210) has a positioning structure (220). Linkage component (300), the linkage component (300) is movably disposed inside the circuit breaker body (100), one end of the linkage component (300) is linked with the operating mechanism (110), and the other end of the linkage component (300) extends outward toward the circuit breaker body (100); The signal terminal includes a first terminal (130) disposed on the circuit breaker body (100) and a second terminal (230) disposed on the slot wall, wherein the first terminal (130) and the second terminal (230) cooperate with each other; The operating mechanism (110) is used to prevent the circuit breaker body (100) from closing when the linkage (300) abuts against the groove wall; and to release the obstruction to closing the circuit breaker body (100) when the linkage (300) cooperates with the positioning structure (220).

2. The structure according to claim 1, wherein The operating mechanism (110) is provided on each pole of the circuit breaker body (100), and only one of the first terminal (130) and the linkage (300) is provided on the circuit breaker body (100).

3. The misinsertion prevention structure according to claim 2, characterized by The first terminal (130) and the linkage (300) are located on the same pole of the circuit breaker body (100).

4. The misinsertion prevention structure according to claim 3, characterized by The first terminal (130) is not higher than the surface of the circuit breaker body (100), and the second terminal (230) protrudes from the groove wall.

5. The structure according to claim 1, wherein The linkage component (300) includes a retaining part (311) and a linkage part (312) connected at a preset angle. One end of the retaining part (311) is provided with an abutting part (313) that cooperates with the positioning structure (220). The linkage part (312) cooperates with the operating mechanism (110).

6. The structure according to claim 5, wherein The positioning structure (220) includes a recess (221) recessed in the groove wall. When the circuit breaker body (100) is inserted into the receiving groove (210), the abutment part (313) cooperates with the recess (221).

7. The structure according to claim 5, wherein The linkage component (300) also includes a rotating shaft (314), the holding part (311) and the linkage part (312) are both connected to the rotating shaft (314), and the rotating shaft (314) is rotatably connected to the circuit breaker body (100).

8. The structure according to claim 5, wherein The preset angle is an obtuse angle.

9. The structure according to claim 6, wherein The abutting part (313) has an abutting surface (3132) which is used to engage with the top wall of the groove (221) when the abutting part (313) is engaged in the groove (221).

10. The structure according to any one of claims 1 to 9, wherein The slot wall comprises a bearing surface (240), an upper clamping surface (250) and a lower clamping surface (260) connected to both ends of the bearing surface (240), and at least one of the upper clamping surface (250) and the lower clamping surface (260) is provided with the positioning structure (220).

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