Dual-power switching module and magnetically controlled circuit breaker thereof

Abstract

The utility model discloses a dual-power switching module and a magnetic control circuit breaker thereof. The dual-power switching module comprises a shell; the circuit breaker module is arranged in the shell; and the circuit breaker limiting mechanism is arranged in the shell, the circuit breaker limiting mechanism is respectively connected with the circuit breaker module and the shell, and the circuit breaker limiting mechanism and the circuit breaker module form mechanical interlocking. According to the technical scheme of the embodiment, the circuit breaker limiting mechanism is used for limiting the opening and closing positions of the first circuit breaker and the second circuit breaker in the circuit breaker module, it is ensured that the circuit breaker module can only conduct opening or closing operation in a specific area, and the circuit breaker limiting mechanism is matched with the circuit breaker module to form mechanical interlocking; the safety of the dual-power switching module during power switching is ensured, and the situation that the dual-power switching module is switched on at the same time is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of power distribution automation, in particular to a dual power supply switching module and a magnetically controlled circuit breaker thereof. Background Art

[0002] At present, dual power supply fast switching modules can be widely used in scenarios such as non-stop power supply maintenance of power grids, backup power supply access and photovoltaic power generation and distribution. However, the dual power supply switching modules in the prior art use motors for opening and closing switching, resulting in a slow opening and closing speed, which cannot meet the scenarios with strict requirements on switching speed. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a dual power switching module and a magnetically controlled circuit breaker thereof, which can improve the opening and closing speed.

[0004] On the one hand, a dual power switching module according to an embodiment of the utility model includes:

[0005] case;

[0006] A circuit breaker module, wherein the circuit breaker module is disposed inside the housing;

[0007] The circuit breaker limiting mechanism is arranged in the housing, the circuit breaker limiting mechanism is respectively connected to the circuit breaker module and the housing, and the circuit breaker limiting mechanism forms a mechanical interlock with the circuit breaker module.

[0008] According to some embodiments of the utility model, the shell is provided with a back plate, a front plate, a left support plate and a right support plate, one end of the back plate is connected to one end of the left support plate, the other end of the back plate is connected to one end of the right support plate, one end of the front plate is connected to the other end of the left support plate, the other end of the front plate is connected to the other end of the right support plate, the front plate is arranged on one side of the circuit breaker module, and the back plate is arranged on the other side of the circuit breaker module, wherein one side of the circuit breaker module is the opposite side of the other side of the circuit breaker module.

[0009] According to some embodiments of the present invention, the circuit breaker module is provided with a first circuit breaker and a second circuit breaker, a first cap is provided on the side of the first circuit breaker connected to the circuit breaker limiting mechanism, and a second cap is provided on the side of the second circuit breaker connected to the circuit breaker limiting mechanism.

[0010] According to some embodiments of the utility model, the circuit breaker limiting mechanism is provided with a stainless steel tube and a stainless steel rope, the first cover cap is provided with a first through hole, the second cover cap is provided with a second through hole, the stainless steel rope passes through the stainless steel tube, one end of the stainless steel rope is connected to the first through hole, and the other end of the stainless steel rope is connected to the second through hole.

[0011] According to some embodiments of the utility model, a first terminal is provided at one end of the stainless steel rope, and a second terminal is provided at the other end of the stainless steel rope. One end of the stainless steel rope is connected to the first cap through the first terminal, and the other end of the stainless steel rope is connected to the second cap through the second terminal.

[0012] According to some embodiments of the present invention, the front plate is further provided with a first opening and a second opening.

[0013] According to some embodiments of the present invention, the shell is provided with a plurality of reinforcing ribs.

[0014] In a second aspect, an embodiment of the utility model further proposes a magnetically controlled circuit breaker, comprising a dual power switching module as described in the embodiment of the first aspect above.

[0015] The dual power switching module according to the embodiment of the utility model has at least the following beneficial effects:

[0016] Shell; circuit breaker module, the circuit breaker module is arranged inside the shell; circuit breaker limit mechanism, the circuit breaker limit mechanism is arranged inside the shell, the circuit breaker limit mechanism is connected to the circuit breaker module and the shell respectively, and the circuit breaker limit mechanism forms a mechanical interlock with the circuit breaker module. According to the technical solution of this embodiment, the opening and closing positions of the first circuit breaker and the second circuit breaker in the circuit breaker module are limited by the circuit breaker limit mechanism, ensuring that the circuit breaker module can only be opened or closed in a specific area, so that the circuit breaker limit mechanism cooperates with the circuit breaker module to form a mechanical interlock, ensuring the safety of the dual power switching module when switching power, and avoiding the situation where the dual power switching module is closed at the same time.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0020] Figure 2 This is a schematic diagram of the housing structure of an embodiment of the utility model;

[0021] Figure 3 This is a schematic structural diagram of a left support plate, a right support plate and reinforcing ribs according to an embodiment of the utility model;

[0022] Figure 4 It is a structural schematic diagram of the circuit breaker limit mechanism of the embodiment of the utility model;

[0023] Figure 5 It is a schematic structural diagram of the first connecting terminal and the second connecting terminal of an embodiment of the utility model.

[0024] Reference numerals:

[0025] Shell 100; back plate 110; front plate 120; first opening 121; second opening 122; left support plate 130; right support plate 140; reinforcing rib 150; circuit breaker module 200; first circuit breaker 210; second circuit breaker 220; first cover cap 230; first through hole 231; second cover cap 240; second through hole 241; circuit breaker limiting mechanism 300; stainless steel tube 310; stainless steel rope 320; first wiring terminal 321; second wiring terminal 322. DETAILED DESCRIPTION

[0026] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0027] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0028] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0029] Reference Figure 1 and Figure 3The embodiment of the utility model provides a dual power switching module, including a housing 100; a circuit breaker module 200, the circuit breaker module 200 is arranged inside the housing 100; a circuit breaker limiting mechanism 300, the circuit breaker limiting mechanism 300 is arranged in the housing 100, the circuit breaker limiting mechanism 300 is respectively connected to the circuit breaker module 200 and the housing 100, and the circuit breaker limiting mechanism 300 forms a mechanical interlock with the circuit breaker module 200.

[0030] It should be noted that the circuit breaker module 200 is limited to be opened and closed by forming a mechanical interlock between the circuit breaker limit mechanism 300 and the circuit breaker module 200, so that only the closed circuit breaker of the circuit breaker module 200 is connected to the load or the mains access, and the other circuit breaker is opened. It is ensured that when the dual power switching module is switching the power supply, only one circuit breaker is in the closed state, and the other circuit breaker is in the open state. The circuit breaker limit mechanism 300 limits the opening and closing positions of the first circuit breaker 210 and the second circuit breaker 220 in the circuit breaker module 200, ensuring that the circuit breaker module 200 can only be opened or closed in a specific area, so that the circuit breaker limit mechanism 300 cooperates with the circuit breaker module 200 to form a mechanical interlock, ensuring the safety of the dual power switching module when switching the power supply, and avoiding interference and conflict between power supplies. In addition, mechanical interlocking can also improve the reliability of the dual power switching module and simplify the control logic of power switching. When the electrical interlocking of the dual power switching module fails, mechanical interlocking is used as the last line of defense for the dual power switching module to ensure that multiple circuit breakers in the circuit breaker module 200 will not be closed at the same time.

[0031] Reference Figure 2 and Figure 3 The shell 100 is provided with a back plate 110, a front plate 120, a left support plate 130 and a right support plate 140, one end of the back plate 110 is connected to one end of the left support plate 130, the other end of the back plate 110 is connected to one end of the right support plate 140, one end of the front plate 120 is connected to the other end of the left support plate 130, the other end of the front plate 120 is connected to the other end of the right support plate 140, the front plate 120 is arranged on one side of the circuit breaker module 200, and the back plate 110 is arranged on the other side of the circuit breaker module 200, wherein one side of the circuit breaker module 200 is the opposite side of the other side of the circuit breaker module 200.

[0032] It should be noted that, by forming a shell 100 structure composed of a back plate 110, a front plate 120, a left support plate 130 and a right support plate 140, the circuit breaker module 200 is firmly fixed in the shell 100. When the dual power switching module is in operation, it can effectively prevent the circuit breaker module 200 from being displaced or loosened due to external vibration or impact, as well as the vibration generated by its own work, thereby ensuring the stability and reliability of the dual power switching module, extending the service life of the circuit breaker module 200, and reducing the frequency of maintenance and overhaul of the circuit breaker module 200. In addition, the shell 100 composed of multiple plates can not only minimize the volume of the dual power switching module, improve the integration and applicability of the dual power switching module, but also firmly install the circuit breaker module 200 inside the shell 100, and the staff can disassemble and install the circuit breaker module 200 as needed.

[0033] Reference Figure 1 and Figure 4 The circuit breaker module 200 is provided with a first circuit breaker 210 and a second circuit breaker 220. A first cap 230 is provided on the side where the first circuit breaker 210 is connected to the circuit breaker limiting mechanism 300, and a second cap 240 is provided on the side where the second circuit breaker 220 is connected to the circuit breaker limiting mechanism 300.

[0034] It should be noted that the opening and closing of the first circuit breaker 210 and the second circuit breaker 220 are determined by the first cap 230 and the second cap 240. In this embodiment, when the first cap 230 is facing upward, the first circuit breaker 210 is in the closed state, and when the second cap 240 is facing upward, the second circuit breaker 220 is in the closed state; when the first cap 230 is facing upward, the first circuit breaker 210 is in the open state, and when the second cap 240 is facing downward, the second circuit breaker 220 is in the open state.

[0035] Furthermore, the positions of the first cover cap 230 and the second cover cap 240 are limited by the circuit breaker limiting mechanism 300, and the first circuit breaker 210 and the second circuit breaker 220 are prevented from being closed at the same time by mechanical interlocking, thereby avoiding a short circuit caused by simultaneous closing.

[0036] The circuit breaker limiting mechanism 300 is provided with a stainless steel tube 310 and a stainless steel rope 320, the first cap 230 is provided with a first through hole 231, the second cap 240 is provided with a second through hole 241, the stainless steel rope 320 passes through the stainless steel tube 310, one end of the stainless steel rope 320 is connected to the first through hole 231, and the other end of the stainless steel rope 320 is connected to the second through hole 241. It should be noted that the length of the stainless steel rope 320 is fixed, and the two ends of the stainless steel rope 320 are connected to the first cap 230 and the second cap 240 respectively by passing the stainless steel rope 320 through the stainless steel tube 310. When the first circuit breaker 210 and the second circuit breaker 220 are both in the open state, the first cap 230 and the second cap 240 are both facing downwards. At this time, the stainless steel rope 320 is in a relaxed state. Therefore, the first circuit breaker 210 and the second circuit breaker 220 are not affected by the stainless steel rope 320 when they are open. When one of the first circuit breaker 210 and the second circuit breaker 220 is in the closed state and the other is in the open state, the stainless steel rope 320 is in a nearly taut state. Therefore, when the first circuit breaker 210 and the second circuit breaker 220 are in the one open state and the other closed state, the stainless steel rope 320 is not affected by the stainless steel rope 320. Affected by the stainless steel rope 320; when the first circuit breaker 210 and the second circuit breaker 220 tend to close at the same time, the first cap 230 and the second cap 240 both move upward. Since the length of the stainless steel rope 320 is fixed, the first cap 230 and the second cap 240 move upward at the same time, making the stainless steel rope 320 in a taut state. Therefore, the first cap 230 and the second cap 240 cannot reach the closing position of the first circuit breaker 210 and the second circuit breaker 220 at the same time, thereby preventing the first magnetically controlled circuit breaker and the second magnetically controlled circuit breaker from being closed at the same time.

[0037] Reference Figure 3 and Figure 5 A first terminal 321 is provided at one end of the stainless steel rope 320 , and a second terminal 322 is provided at the other end of the stainless steel rope 320 . One end of the stainless steel rope 320 is connected to the first cap 230 through the first terminal 321 , and the other end of the stainless steel rope 320 is connected to the second cap 240 through the second terminal 322 .

[0038] It should be noted that the first wiring terminal 321 and the second wiring terminal 322 are respectively connected to the two sides of the stainless steel rope 320, and the stainless steel rope 320 is respectively connected to the first cap 230 and the second cap 240 through the first through hole 231 and the second through hole 241, so that the stainless steel rope 320 is fixed to the two ends of the first circuit breaker 210 and the second circuit breaker 220, and the action of the circuit breaker limit module is realized by limiting the moving position of the stainless steel rope 320, thereby controlling the opening and closing state of the circuit breaker module 200. The stainless steel rope 320 is connected to the first cap 230 and the second cap 240 through the first wiring terminal 321 and the second wiring terminal 322. In addition, since the circuit breaker limit mechanism 300 adopts the stainless steel rope 320, the risk of breakage caused by metal corrosion can be effectively reduced, and the safety and stability of the dual power switching module are increased. Furthermore, the stainless steel rope 320 is connected to the first cap 230 and the second cap 240 respectively by using wiring terminals, so that the stainless steel rope 320 is more convenient and quick to replace and maintain, thereby reducing maintenance costs and workload.

[0039] The front plate 120 is also provided with a first opening 121 and a second opening 122. It should be noted that the positions of the first opening 121 and the second opening 122 are adapted to the positions of the first cap 230 and the second cap 240, ensuring the correct position and mutual coordination of the various components of the limit mechanism, realizing the precise control and positioning of the opening and closing positions of the circuit breaker module 200, avoiding the failure of the dual power switching module due to looseness or misalignment, and further improving the reliability and stability of the dual power switching module.

[0040] The housing 100 is provided with a plurality of reinforcing ribs 150. It should be noted that when the dual power switching module is switched between the opening and closing states, the housing 100 will inevitably vibrate. In this embodiment, the left support plate 130, the right support plate 140 and the back plate 110 of the housing 100 are all provided with reinforcing ribs 150. The reinforcing ribs 150 are used to enhance the rigidity and strength of the left support plate 130, the right support plate 140 and the back plate 110, thereby effectively reducing the vibration or deformation of the housing 100 during the operation of the circuit breaker module and increasing the overall stability and carrying capacity of the circuit breaker module.

[0041] In addition, an embodiment of the present application further provides a magnetically controlled circuit breaker, which includes the dual power switching module described in any of the above embodiments.

[0042] In the description of this specification, the description with reference to the terms "one embodiment", "further embodiments", "some specific embodiments" or "some examples" etc. means that the specific features, structures or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0043] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A dual power switching module, characterized in that: include: case; A circuit breaker module, wherein the circuit breaker module is disposed inside the housing; The circuit breaker limiting mechanism is arranged in the housing, the circuit breaker limiting mechanism is respectively connected to the circuit breaker module and the housing, and the circuit breaker limiting mechanism forms a mechanical interlock with the circuit breaker module.

2. The dual power switching module according to claim 1, characterized in that: The shell is provided with a back plate, a front plate, a left support plate and a right support plate, one end of the back plate is connected to one end of the left support plate, the other end of the back plate is connected to one end of the right support plate, one end of the front plate is connected to the other end of the left support plate, the other end of the front plate is connected to the other end of the right support plate, the front plate is arranged on one side of the circuit breaker module, and the back plate is arranged on the other side of the circuit breaker module, wherein one side of the circuit breaker module is the opposite side of the other side of the circuit breaker module.

3. The dual power switching module according to claim 1, characterized in that: The circuit breaker module is provided with a first circuit breaker and a second circuit breaker, wherein a first cap is provided on a side of the first circuit breaker connected to the circuit breaker limiting mechanism, and a second cap is provided on a side of the second circuit breaker connected to the circuit breaker limiting mechanism.

4. The dual power switching module according to claim 3, characterized in that: The circuit breaker limiting mechanism is provided with a stainless steel tube and a stainless steel rope, the first cap is provided with a first through hole, the second cap is provided with a second through hole, the stainless steel rope passes through the stainless steel tube, one end of the stainless steel rope is connected to the first through hole, and the other end of the stainless steel rope is connected to the second through hole.

5. The dual power switching module according to claim 4, characterized in that: A first terminal is provided at one end of the stainless steel rope, and a second terminal is provided at the other end of the stainless steel rope. One end of the stainless steel rope is connected to the first cap through the first terminal, and the other end of the stainless steel rope is connected to the second cap through the second terminal.

6. The dual power switching module according to claim 2, characterized in that: The front plate is also provided with a first opening and a second opening.

7. The dual power switching module according to claim 1, characterized in that: The shell is provided with a plurality of reinforcing ribs.

8. A magnetically controlled circuit breaker, characterized in that: include: A dual power switching module as claimed in any one of claims 1 to 7.

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