A shunt trip with indication

Abstract

The present invention relates to a shunt trip with indication, which includes a trip housing, a trip assembly and an indicating member. An indicating window is provided on the trip housing. The trip assembly includes a trip main board and a linkage block. When the indicating member rotates in the trip state, the trip main board rotates in the same direction as it to drive the handle to trip. The linkage block is rotatably connected to the trip main board and is linked to the circuit breaker. In the trip state, the linkage block rotates to drive the circuit breaker to trip. When the circuit breaker closes and trips, the indicating member is not exposed in the indicating window. A second torsion spring for resetting is provided on the rotating shaft portion of the trip main board, and a third torsion spring for resetting is sleeved on the linkage block. Through the trip assembly, the present invention enables the circuit breaker to close and trip by itself without causing the indicating member to indicate, and only when the shunt trip trips, the indicating member plays an indicating role.

Description

Technical Field

[0001] The present invention relates to the technical field of shunt trip devices, and particularly to a shunt trip device with indication. Background Art

[0002] Miniature circuit breakers applied in the fire protection field need to be matched with shunt trip devices. The purpose is to forcibly disconnect the circuit remotely when a fault such as a fire occurs in the load controlled by the miniature circuit breaker, reducing unnecessary economic losses.

[0003] Existing shunt trip devices do not have an indication function. Therefore, when the shunt trip device trips the circuit breaker, it is impossible to determine whether the circuit breaker trips by itself or by the shunt trip device. Summary of the Invention

[0004] The purpose of the present invention is to provide a shunt trip device with indication to solve the above technical problems.

[0005] To achieve the above purpose, the present invention provides the following technical solutions.

[0006] A shunt trip device with indication, characterized by comprising a trip device housing, a trip assembly, and an indicating member. An indication window is provided on the trip device housing. The trip device assembly includes a trip main board and a linkage block. The indicating member and the trip main board are rotatably arranged on the trip device housing, and the indicating member is arranged on one side close to the wall surface of the trip device housing. The indicating member is linked with a driving member. In a non-tripping state, the driving member is in a locked state. In a tripping state, the indicating member is unlocked from the driving member, and the indicating member rotates and displays the tripping state in the indication window. A first torsion spring is provided on the indicating member for energy storage and driving the indicating member to rotate and reset in a tripping state. A linkage portion is arranged inside the trip main board and is linked with the indicating member. When the indicating member rotates in a tripping state, the trip main board rotates in the same direction as it and drives the handle to trip. The linkage block is rotatably connected to the trip main board and is linked with the circuit breaker. In a tripping state, the linkage block rotates and drives the circuit breaker to trip. When the circuit breaker closes and trips, the indicating member is not exposed in the indication window. A second torsion spring for resetting is provided on the rotation shaft portion of the trip main board, and a third torsion spring for resetting is sleeved on the linkage block.

[0007] The present invention is further provided with a linkage board arranged on the trip main board. The linkage board abuts against or separates from the linkage block and is arranged on one side close to the indicating member. The linkage board is connected to the handle through a connecting pin. A first connection hole for connecting to the trip main board and a second connection hole for connecting the connecting pin are formed on the linkage board. When the indicating member drives the trip main board to rotate towards the handle side, the linkage board rotates synchronously with the trip main board and pulls the connecting pin to trip the handle.

[0008] The present invention is further configured to further include an electromagnetic system. When tripping, the electromagnetic system drives the driving member and the linkage block to rotate, so that the indicating member is unlocked from the driving member, and at the same time drives the linkage block to trip the circuit breaker.

[0009] The present invention is further configured such that the linkage block has a sleeving space for sleeving on the trip main board. Both sides of the sleeving space are formed with sleeving holes, and the sleeving holes are located on both sides of the trip main board and are aligned with the holes on the trip main board in a one-to-one correspondence.

[0010] The present invention is further configured such that the linkage block has a first acting arm that cooperates with the electromagnetic system and a third acting arm that cooperates with the linkage plate. The electromagnetic system acts on the first acting arm; the driving member has a second acting arm that cooperates with the electromagnetic system.

[0011] The present invention is further configured such that the electromagnetic system acts on the first acting arm and the second acting arm simultaneously.

[0012] The beneficial effects of the present invention are as follows: The principle of the present invention is as follows: When the shunt trip releases, the electromagnetic system drives the driving member and the linkage block to rotate. Among them, the driving member is unlocked from the indicating member, so that the indicating member moves towards the handle side under the action of the first torsion spring. At this time, the indicating member is located within the indicating window to indicate the tripped state; at the same time, since the indicating member is linked with the trip main board through the linkage part provided inside the trip main board, the linkage plate is driven to achieve handle opening; when the linkage block rotates, the circuit breaker connected to the outside is tripped; and the self-opening and closing of the circuit breaker will not cause the indicating member to give an indication. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings described herein are used to provide a further understanding of the present application, and constitute a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0014] Figure 1 is a schematic structural diagram of an embodiment of the present invention.

[0015] Figure 2 is an internal structural diagram of an embodiment of the present invention.

[0016] Figure 3 is a perspective view of a trip assembly of an embodiment of the present invention from one perspective.

[0017] Figure 4 is a perspective view of a trip assembly of an embodiment of the present invention from one perspective.

[0018] Reference numerals

[0019] 10. Trip unit housing; 20. Electromagnetic system; 30. Tripping assembly; 301. Tripping main board; 3011. Linkage part; 3012. Rotating shaft part; 302. Linkage block; 3021. First acting arm; 3022. Third acting arm; 302a. Sheathing space; 3023. Sheathing hole; 303. Driving part; 3031. Second acting arm; 304. Linkage plate; 3041. First connection hole; 3042. Second connection hole; 40. Indicator; 50. Connecting pin; 60. Handle; 70. First torsion spring; 80. Second torsion spring; 90. Third torsion spring; 100. Indicator window; Detailed implementation mode

[0020] The following will cooperate with the drawings and embodiments to elaborate in detail on the implementation mode of the present application, so as to fully understand how the present application uses technical means to solve technical problems and achieve the realization process of technical effects and implement accordingly.

[0021] As Figures 1-4 shown, the present invention is a shunt trip unit with indication, including a trip unit housing 10, a tripping assembly 30 and an indicator 40. An indicator window is provided on the trip unit housing 10. The tripping assembly includes a tripping main board 301 and a linkage block 302. The indicator 40 and the tripping main board 301 are rotatably arranged on the trip unit housing 10, and the indicator 40 is arranged on one side close to the wall surface of the trip unit housing 10. The indicator 40 is linked and connected with a driving part 303. In the non-tripping state, the driving part 303 of the indicator 40 is in a locked state. In the tripping state, the indicator 40 and the driving part 303 are unlocked, the indicator 40 rotates and displays the tripping state in the indicator window. A first torsion spring 70 is arranged on the indicator 40 for energy storage and driving the indicator 40 to rotate and reset in the tripping state; a linkage part 3011 is arranged inside the tripping main board 301 and is linked with the indicator 40. When the indicator 40 rotates in the tripping state, the tripping main board 301 rotates in the same direction as it and drives the handle 60 to trip; the linkage block 302 is rotatably connected to the tripping main board 301 and is linked and connected with the circuit breaker. In the tripping state, the linkage block 302 rotates and drives the circuit breaker to trip. When the circuit breaker closes and trips, the indicator 40 is not exposed in the indicator window. A second torsion spring 80 for resetting is arranged on the rotating shaft part 3012 of the tripping main board 301, and a third torsion spring 90 for resetting is sleeved on the linkage block 302.

[0022] The present invention further includes a linkage plate 304 disposed on the trip main board 301. The linkage plate 304 abuts against or separates from the linkage block 302 and is disposed close to the indicating member 40. The linkage plate 304 is connected to the handle 60 through a connecting pin 50. A first connection hole 3041 for connecting to the trip main board 301 and a second connection hole 3042 for connecting the connecting pin 50 are formed on the linkage plate 304. When the indicating member 40 drives the trip main board 301 to rotate towards the handle 60, the linkage plate 304 rotates synchronously with the trip main board 301 and at the same time pulls the connecting pin 50 to trip the handle 60.

[0023] The present invention further includes an electromagnetic system 20. During tripping, the electromagnetic system 20 drives the driving member 303 and the linkage block 302 to rotate, so that the indicating member 40 is unlocked from the driving member 303, and at the same time drives the linkage block 302 to trip the circuit breaker.

[0024] The linkage block 302 has a sleeving space 302a for sleeving on the trip main board 301. Sleeve holes 3023 are formed on both sides of the sleeving space 302a. The sleeve holes 3023 are located on both sides of the trip main board 301 and are aligned with the holes on the trip main board 301.

[0025] The linkage block 302 has a first action arm 3021 for cooperating with the electromagnetic system 20 and a third action arm 3022 for cooperating with the linkage plate 304. The electromagnetic system 20 acts on the first action arm 3021; the driving member 303 has a second action arm 3031 for cooperating with the electromagnetic system 20.

[0026] The electromagnetic system 20 acts on the first action arm 3021 and the second action arm 3031 simultaneously.

[0027] The principle of the present invention is as follows: When the shunt trip releases, the electromagnetic system 20 drives the driving member 303 and the linkage block 302 to rotate. Among them, the driving member 303 is unlocked from the indicating member 40, so that the indicating member 40 moves towards the handle 60 under the action of the first torsion spring 70. At this time, the indicating member 40 is located in the indicating window to indicate the trip state; at the same time, since the indicating member 40 and the trip main board 301 are linked through the linkage portion 3011 provided inside the trip main board 301, the linkage plate 304 is driven to trip the handle 60; when the linkage block 302 rotates, the circuit breaker connected to the outside is tripped; and the self-tripping and closing of the circuit breaker will not cause the indicating member 40 to give an indication.

[0028] As used in the specification and claims, certain terms are used to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. The specification and claims do not distinguish components by the difference in names, but by the difference in functions of the components. As used throughout the specification and claims, the term "comprising" is an open-ended term and should be interpreted as "comprising but not limited to". "Substantially" means within an acceptable error range. Those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0029] It should be noted that the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, such that a commodity or system including a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such commodity or system. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the commodity or system including said element.

[0030] The above description shows and describes several preferred embodiments of the present invention. However, as mentioned above, it should be understood that the present invention is not limited to the forms disclosed herein, should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be changed within the scope of the inventive concept described herein through the above teachings or the techniques or knowledge in related fields. And any changes and modifications made by those skilled in the art without departing from the spirit and scope of the present invention shall fall within the protection scope of the appended claims of the present invention.

Claims

1. A shunt trip with indication, characterized in that, It includes a release housing, a release assembly and an indicator. An indicator window is provided on the release housing. The release assembly includes a release main board and a linkage block. The indicator is rotatably arranged on the release housing with the release main board, and the indicator is arranged on one side close to the wall surface of the release housing. The indicator is linked with a driving member. The driving member is in a locked state when the indicator is in a non-release state, and the indicator is unlocked from the driving member in the release state. The indicator rotates and displays the release state in the indicator window. A first torsion spring is arranged on the indicator for energy storage and driving the indicator to rotate and reset in the release state. A linkage part is arranged inside the release main board and is linked with the indicator. When the indicator rotates in the release state, the release main board rotates in the same direction as it and drives the handle to trip. The linkage block is rotatably connected to the release main board and is linked with the circuit breaker. In the release state, the linkage block rotates and drives the circuit breaker to trip. When the circuit breaker closes and trips, the indicator is not exposed in the indicator window. A second torsion spring for resetting is arranged on the rotation shaft part of the release main board, and a third torsion spring for resetting is sleeved on the linkage block. It also includes a linkage plate arranged on the release main board. The linkage plate abuts against or separates from the linkage block and is arranged on one side close to the indicator. The linkage plate is connected to the handle through a connecting pin. A first connection hole for connecting with the release main board and a second connection hole for connecting with the connecting pin are formed on the linkage plate. When the indicator drives the release main board to rotate towards the handle side, the linkage plate rotates synchronously with the release main board and pulls the connecting pin to trip the handle. It also includes an electromagnetic system. When tripping, the electromagnetic system drives the driving member and the linkage block to rotate, so that the indicator is unlocked from the driving member, and at the same time drives the linkage block to disconnect the circuit breaker. The linkage block has an action arm one for cooperating with the electromagnetic system and an action arm three for cooperating with the linkage plate. The electromagnetic system acts on the action arm one. The driving member has an action arm two for cooperating with the electromagnetic system. The electromagnetic system acts on the action arm one and the action arm two at the same time.

2. The shunt trip device with indication according to claim 1, wherein The linkage block has a sleeving space for sleeving on the release main board. Sleeve holes are formed on both sides of the sleeving space. The sleeve holes are located on both sides of the release main board and are arranged in alignment with the holes on the release main board.

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