A closing switching structure of a three-position dual power transfer switch

Abstract

The utility model discloses a kind of closing switching structure of three-position double power supply transfer switch, including debugging slot and debugging shaft, debugging shaft is housed in debugging slot and is active, debugging slot includes the main closing position and the auxiliary closing position in the middle opening position and both sides, still including the guiding block of movable setting, guiding block is adjusted to the main closing position or auxiliary closing position of debugging slot by activity, debugging shaft enters blocking side and is guided to the other side by blocking.The utility model debugging shaft can be driven by mechanical mechanism and reciprocate, the running track of debugging shaft in debugging slot is changed by guiding block, and then the running direction of output shaft can be switched after debugging shaft is connected to external output shaft, so as to realize the closing switching of two commonly used and standby switches;Compared with the mode that two groups of mechanical structures cooperate two groups of coils to operate, component cost and the volume occupied by mechanical structure can be greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of electrical switches, and in particular to a closing and switching structure for a three-position dual-power transfer switch. Background Technology

[0002] Traditional dual-power transfer switches have two circuits: a primary circuit and a secondary circuit. An operating mechanism is connected to the input shaft. The operating mechanism uses two sets of electromagnetic coils (one for primary and one for secondary) to drive a rotating shaft, which closes or opens the two circuits. Alternatively, manual switching can be performed using a handle. The rotating shaft is connected to the output shafts of the primary and secondary circuits via a closing / opening assembly. The output shafts connect to specific moving contacts to open and close the circuit with the stationary contacts. The two sets of electromagnetic coils enable the closing action on the primary or secondary side; that is, the electromagnetic coils drive the reciprocating motion of the mechanism to close or open the circuit. The electromagnetic coils are the main cost component of the dual-power transfer switch. The two sets of electromagnetic coils not only increase the cost but also increase the overall size of the switch due to the two mechanical structures they drive. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a closing and switching structure for a three-position dual-power transfer switch. By changing the running trajectory of the test shaft in the test slot through the guide block, the external mechanical structure connected to the test shaft can be linked accordingly, thereby realizing the closing and switching of the two switches, the normal and the standby.

[0004] The present invention adopts the following technical solution: a closing switching structure for a three-position dual-power transfer switch, including a debugging slot and a debugging shaft. The debugging shaft is accommodated in the debugging slot for movement. The debugging slot includes a middle open position and a main closing position and an auxiliary closing position on both sides. It also includes a movable guide block. The guide block is adjusted to the main closing position or the auxiliary closing position of the debugging slot by movement, blocking the debugging shaft from entering the blocking side and guiding it to the other side.

[0005] As an improvement, the test slot is set on a rack. The test slot is in the shape of an inverted "Y". The open position is located in the middle upper part, and the main closing position and the auxiliary closing position are located on both sides lower part. The guide block moves to the side of the main closing position or the auxiliary closing position at the intersection of the "Y" shape to block it.

[0006] As an improvement, the guide block is rotatably mounted on the rack via a pivot.

[0007] As an improvement, one end of the guide block extending into the intersection of the debugging slot is set as a "V"-shaped guide wall. When the guide block blocks the debugging shaft from entering the main closing position or the auxiliary closing position on one side, the "V"-shaped guide wall guides the debugging shaft to move to the other side.

[0008] As an improvement, the guide block is moved and its position is adjusted by a small coil.

[0009] As an improvement, the core of the small coil is connected to a test piece, and the guide block is equipped with a toggle arm. The test piece and the toggle arm are engaged and linked together.

[0010] As an improvement, the test shaft is connected to an external swing arm, which is connected to the output shaft to transmit the opening and closing action outward.

[0011] As an improvement, the adjustment shaft is connected to a connecting rod assembly, which is driven by a large coil to move and thus drive the adjustment shaft to adjust its position in the adjustment slot.

[0012] The beneficial effects of this utility model are as follows: the debugging shaft can be driven by a mechanical mechanism to reciprocate, and the running trajectory of the debugging shaft in the debugging slot can be changed by the guide block. In this way, the running direction of the output shaft can be switched after the debugging shaft is connected to the external output shaft, thereby realizing the switching of the two circuit switches of normal and standby. Compared with the traditional method of two sets of mechanical structures and two sets of coils to operate, the component cost and the volume occupied by the mechanical structure can be greatly reduced. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention during circuit breaker opening.

[0014] Figure 2 This is a three-dimensional structural diagram of the hidden arrangement frame when the circuit breaker is opened.

[0015] Figure 3 This is a three-dimensional structural diagram of the present invention when the switch is closed on one side.

[0016] Figure 4 This is a three-dimensional structural diagram of the present invention, showing the hidden arrangement frame when the switch is closed on one side.

[0017] Figure 5 This is a three-dimensional structural diagram of the present invention, showing the hidden arrangement frame when the switch is closed on the other side. Detailed Implementation

[0018] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0019] like Figure 1 , 2Figures 3, 4, and 5 show specific embodiments of the closing switching structure of the three-position dual-power transfer switch of this utility model. This embodiment includes a test slot 1 and a test shaft 2. The test shaft 2 is housed in the test slot 1 and moves within it. The test slot 1 includes a middle open position 11 and two main closing positions 12 and auxiliary closing positions 13 on either side. It also includes a movable guide block 3. The guide block 3 can be adjusted to either the main closing position 12 or the auxiliary closing position 13 of the test slot 1, preventing the test shaft 2 from entering one side and guiding it to the other side.

[0020] In use, the power input mechanism corresponding to the debugging shaft 2 is the externally connected linkage assembly 7. The linkage assembly 7 is driven by a large coil 8 to reciprocate, thereby driving the debugging shaft 2 to complete the closing or opening action. For switching between the normal and standby switches, the innovative design of the above structure achieves this. When opening, the debugging shaft 2 moves from the main closing position 12 or auxiliary closing position 13 of the debugging slot 1 to the opening position 11. When closing, the debugging shaft 2 moves from the opening position 11 of the debugging slot 1 to the main closing position 12 or auxiliary closing position 13. The guide block 3 blocks the main closing position 12 or auxiliary closing position 13, causing the debugging shaft 2 to move to the other side, either the auxiliary closing position 13 or the main closing position 12. When switching between the normal and standby switches is required, the position of the guide block 3 is adjusted. After adjustment, the guide block 3 can move to the unblocked side. Figure 1 , 2 For example, guide block 3 blocks the auxiliary closing position 13. If closing is performed at this time, the debugging shaft 2 will move towards the main closing position 12, and then... Figure 3 , 4 The circuit is closed as shown; if guide block 3 blocks the main closing position 12, then the adjustment shaft 2 will move to the auxiliary closing position 13, and so on. Figure 5 The diagram shows the backup circuit being closed. The power output mechanism corresponding to the debugging shaft 2 is connected to an external swing arm 5. When the debugging shaft 2 is in the main closing position 12 or the auxiliary closing position 13, the swing arm 5 swings left or right, thereby driving the output shaft 6 to complete the left or right rotation. The output shaft 6 is connected to an external moving contact. The left or right rotation causes the moving contact to make contact with the corresponding normal side stationary contact or the backup side stationary contact to complete the closing. This utility model adjusts the movement trajectory of the debugging shaft 2 through the guide block 3 to realize the switching of the two circuits, thereby greatly simplifying the power input and output mechanism. It optimizes the original two sets of power input and output mechanisms into one set of power input and output mechanisms, which can greatly simplify the component structure and reduce the volume occupied by the mechanism while controlling costs.

[0021] As an improved specific implementation, the debugging slot 1 is set on a rack 0. The debugging slot 1 is in the shape of an inverted "Y". The opening position 11 is located in the middle upper part, and the main closing position 12 and the auxiliary closing position 13 are located on both sides lower part. The guide block 3 moves to the side of the main closing position 12 or the auxiliary closing position 13 at the intersection of the "Y" shape to block.

[0022] like Figure 1 , 3 As shown, the specific debugging slot 1 forms a middle upper part of the trip position 11, and the main closing position 12 and the auxiliary closing position 13 on both sides of the lower part. The main closing position 12 and the auxiliary closing position 13 are symmetrically arranged. When the debugging shaft 2 falls and is guided by the guide block 3 to the closing position on one side, the position of the debugging shaft 2 can be kept stable. When the debugging shaft 2 moves to the trip position 11, the left and right positions of the guide block 3 can be adjusted. The guide block 3 blocks the debugging shaft 2 on one side at the intersection of the "Y" shape and guides it to the other side, which can ensure the smooth movement trajectory of the debugging shaft 2.

[0023] As an improved specific implementation, the guide block 3 is rotatably mounted on the arrangement frame 0 via the rotating shaft 31.

[0024] like Figure 1 , 3 As shown, the rotating shaft 31 is positioned slightly below the central axis of the debugging slot 1, allowing the guide block 3 to swing left and right to adjust its position during rotation, thus completing the switching operation at the intersection of the debugging slot 1.

[0025] As an improved specific implementation, one end of the guide block 3 that extends into the intersection of the debugging slot 1 is set as a "V"-shaped guide wall 32. When the guide block 3 blocks the debugging shaft 2 from entering the main closing position 12 or the auxiliary closing position 13 on one side, the "V"-shaped guide wall 32 guides the debugging shaft 2 to move to the other side.

[0026] like Figure 1-5 As shown, when the "V"-shaped guide wall 32 is located at the main closing position 12 or the auxiliary closing position 13, it can effectively block the entry of the debugging shaft 2 by relying on one side of the inclined surface, and the inclined surface and the groove wall on the other side form a continuous guide surface, which can guide the debugging shaft 2 to move smoothly to the other side to complete the closing.

[0027] As an improved specific implementation, the guide block 3 is driven by a small coil 4 to adjust its position.

[0028] like Figure 1-5As shown, preferably, the position of the guide block 3 can be adjusted by setting a small coil 4, and then the circuit of the dual power supply transfer switch can be used to automatically switch between the normal side and the standby side circuit. The size of the small coil 4 is relative to the large coil 8 that controls the opening and closing of the control and debugging shaft 2. Since there are many components to be driven, such as the input components, such as the linkage assembly 7, the debugging shaft 2, the output components, such as the swing arm 5, the output shaft 6, and the moving contact, a larger large coil 8 is used for electromagnetic drive to complete the closing. The guide block 3 itself does not have any extra linkage components, so the smaller and more cost-effective small coil 4 can be used. Compared with the traditional structure, it also has better cost and volume advantages.

[0029] As an improved specific implementation, the iron core 41 of the small coil 4 is connected to a test piece 42, and the guide block 3 is provided with a toggle arm 33. The test piece 42 and the toggle arm 33 are engaged and linked together.

[0030] like Figure 1-5 As shown, the adjustment piece 42 and the toggle arm 33, through their structural cooperation, cause the iron core 41 to move up or down when the small coil 4 is energized or de-energized. This, in turn, drives the adjustment piece 42 to adjust the up-down movement of the toggle arm 33, thereby achieving the left-right position adjustment of the guide block 3. Preferably, the adjustment piece 42 or the toggle arm 33 can also be extended beyond the mounting frame, making it convenient for workers to use tools to move the adjustment piece 42 or the toggle arm 33, thereby performing manual switching of the main and auxiliary circuits.

[0031] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.

Claims

1. A closing and switching structure for a three-position dual-power transfer switch, characterized in that: It includes a test slot (1) and a test shaft (2). The test shaft (2) is housed in the test slot (1) and moves within it. The test slot (1) includes a middle open position (11) and a main close position (12) and a secondary close position (13) on both sides. It also includes a movable guide block (3). The guide block (3) can be moved to the main close position (12) or the secondary close position (13) of the test slot (1) to block the test shaft (2) from entering the blocking side and guide it to the other side.

2. The closing switching structure of a three-position dual-power transfer switch according to claim 1, characterized in that: The debugging slot (1) is set on a rack (0). The debugging slot (1) is in the shape of an inverted "Y". The opening position (11) is located in the middle upper part, and the main closing position (12) and the auxiliary closing position (13) are located on both sides lower part. The guide block (3) moves to the side of the main closing position (12) or the auxiliary closing position (13) at the intersection of the "Y" shape to block.

3. The closing and switching structure of a three-position dual-power transfer switch according to claim 2, characterized in that: The guide block (3) is rotatably mounted on the arrangement frame (0) via a pivot (31).

4. The closing and switching structure of a three-position dual-power transfer switch according to claim 3, characterized in that: The end of the guide block (3) that extends into the intersection of the debugging slot (1) is set as a "V"-shaped guide wall (32). When the guide block (3) blocks the debugging shaft (2) from entering the main closing position (12) or the auxiliary closing position (13) on one side, the "V"-shaped guide wall (32) guides the debugging shaft (2) to move to the other side.

5. The closing switching structure of a three-position dual-power transfer switch according to any one of claims 1-4, characterized in that: The guide block (3) is driven by a small coil (4) to adjust its position.

6. The closing switching structure of a three-position dual-power transfer switch according to claim 5, characterized in that: The core (41) of the small coil (4) is connected to a test piece (42), and the guide block (3) is provided with a toggle arm (33). The test piece (42) and the toggle arm (33) are engaged and linked together.

7. The closing switching structure of a three-position dual-power transfer switch according to any one of claims 1-4, characterized in that: The debugging shaft (2) is connected to a swing arm (5) externally, and the swing arm (5) is connected to the output shaft (6) to transmit the opening and closing action outward.

8. The closing switching structure of a three-position dual-power transfer switch according to any one of claims 1-4, characterized in that: The adjustment shaft (2) is connected to the external linkage assembly (7), which is driven by a large coil (8) to move and thus drive the adjustment shaft (2) to adjust its position in the adjustment slot (1).

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