A two position dual power transfer switch

Abstract

The utility model discloses a two position double power conversion switch, including coil, connecting rod group, debugging groove and debugging axle, the iron core of coil is connected to connecting rod group, and connecting rod group connects debugging axle, debugging axle is contained in debugging groove and carries out activity, and debugging groove includes the intermediate position of being located in the middle and the main closing position and the auxiliary closing position of being located in both sides, still include the movable guide block and the switching block of setting of corresponding debugging axle and debugging groove, and guide block is adjusted to the main closing position or auxiliary closing position of debugging groove through activity, and the other side is guided to the blocking side of blocking debugging axle, and switching block is touched when debugging axle enters the main closing position or auxiliary closing position, and switching block is moved through activity and then drives guide block to move, and the position switching of guide block in main closing position or auxiliary closing position is completed. Compared with the mode that the traditional two groups of mechanical structures cooperate two groups of coils to run, can greatly reduce the cost of part and the volume occupied by mechanical structure.

Description

Technical Field

[0001] This utility model relates to the field of electrical switches, and in particular to a two-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 (primary and secondary) to drive a rotating shaft, which closes and 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 switching assembly. The output shafts connect to specific moving contacts to open and close the circuits with the stationary contacts. The electromagnetic coils are the main cost component of the dual-power transfer switch; two sets of coils not only increase the cost but also make the overall structure larger. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a two-position dual-power transfer switch. Through structural design, the switch between two power sources is achieved by using a single coil, thereby reducing equipment costs and size.

[0004] This utility model adopts the following technical solution: a two-position dual-power transfer switch, including a coil, a connecting rod group, a test slot, and a test shaft. The iron core of the coil is connected to the connecting rod group, and the connecting rod group is connected to the test shaft. The test shaft is accommodated in the test slot for movement. The test slot includes a middle position located in the middle and a main closing position and a secondary closing position located on both sides. It also includes a movable guide block and a switching block set corresponding to the test shaft and the test slot. The guide block is adjusted to the main closing position or the secondary closing position of the test slot by movement, blocking the test shaft from entering the blocking side and guiding it to the other side. The switching block is abutted when the test shaft enters the main closing position or the secondary closing position. The switching block moves by movement, thereby driving the guide block to move, completing the position switching of the guide block in the main closing position or the secondary closing position.

[0005] As an improvement, the debugging slot is set on a rack. The debugging slot is in the shape of an inverted "Y". The middle position is located in the upper middle part, and the main closing position and the auxiliary closing position are located on both sides in the 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. The switching block is located in the middle position of the main closing position or the auxiliary closing position to correspond to the arrival of the debugging shaft and abut.

[0006] As an improvement, the guide block and switching block are 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 debugging shaft moves from the main closing position or the auxiliary closing position to the middle position, it passes through the gap between the slot wall of the debugging slot and one side of the "V"-shaped guide wall. When the debugging shaft moves from the middle position to the main closing position or the auxiliary closing position, it is blocked by the other side of the "V"-shaped guide wall and guided to the movable position.

[0008] As an improvement, the switching block includes two symmetrically positioned abutment frames on the upper left and right and a toggle frame on the lower part. The two abutment frames are located in the middle of the main closing position or the auxiliary closing position, respectively. The toggle frame cooperates with the lower part of the guide block. When the adjustment shaft moves in the main closing position or the auxiliary closing position and reaches the abutment frame, the continuous movement drives the abutment frame to rotate, and the toggle frame drives the guide block to move.

[0009] As an improvement, a receiving cavity is formed in the middle of the toggle frame, and a toggle block that extends into the receiving cavity is provided at the lower part of the guide block. When the toggle block is in the stationary state, it is located on one side of the receiving cavity and thus abuts against the inner wall of one side of the toggle frame. During the swinging process of the switching block, the inner wall of the other side of the toggle frame reaches the position of the toggle block and drives the toggle block to rotate.

[0010] As an improvement, the switching block is also connected to a swing link. One end of the swing link is rotatably mounted on the rack, and the other end is connected to a return spring. The middle of the swing link is connected to the switching block. When the switching block starts to rotate from one side, it abuts against the swing link and rotates, stretching or compressing the return spring. When the switching block rotates past the middle position, the swing link releases its elastic force from the return spring, causing the swing link and the switching block to return to the original position until the switching block stops on the other side.

[0011] As an improvement, the test shaft is connected to an external swing arm, which in turn connects to the output shaft to transmit the opening and closing action outwards.

[0012] The beneficial effects of this utility model are as follows: The debugging shaft can be driven to reciprocate by a coil and a linkage group. By changing the movement trajectory of the debugging shaft in the debugging slot through the guide block, the debugging shaft can be connected to the output shaft and the running direction of the output shaft can be switched, thereby realizing the closing switching of the two circuit switches, the normal and the standby. Furthermore, by setting the switching block, the position of the guide block is changed in conjunction with the switching position of the debugging shaft, thereby completing the debugging of the guide block. This allows the debugging shaft to change its trajectory to complete the closing switching during the next movement. Compared with the traditional method of two sets of mechanical structures and two sets of coils, 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 when the switch is closed on one side.

[0014] Figure 2 This is a three-dimensional structural diagram of the present invention, showing the hidden arrangement frame when the switch is closed on one side.

[0015] Figure 3 This is a three-dimensional structural diagram of the present invention when the circuit is closed on the other 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 the other side. Detailed Implementation

[0017] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0018] like Figure 1 , 2 Figures 3 and 4 show specific embodiments of the two-position dual-power transfer switch of this utility model. This embodiment includes a coil 0, a connecting rod assembly 1, an adjustment slot 2, and an adjustment shaft 3. The iron core of the coil 0 is connected to the connecting rod assembly 1, and the connecting rod assembly 1 is connected to the adjustment shaft 3. The adjustment shaft 3 is accommodated in the adjustment slot 2 for movement. The adjustment slot 2 includes a central position 21 and two side positions: a main closing position 22 and a secondary closing position 23. It also includes movable guide blocks 4 and switching blocks 5 corresponding to the adjustment shaft 3 and the adjustment slot 2. The guide block 4 is adjusted to either the main closing position 22 or the secondary closing position 23 of the adjustment slot 2, blocking the adjustment shaft 3 from entering one side and guiding it to the other side. The switching block 5 is abutted when the adjustment shaft 3 enters the main closing position 22 or the secondary closing position 23. The switching block 5, through movement, drives the guide block 4 to move, completing the position switching of the guide block 4 between the main closing position 22 and the secondary closing position 23.

[0019] In use, the power input mechanism corresponding to the debugging shaft 3 is the externally connected linkage group 1. The linkage group 1 is driven by the coil 0 to reciprocate, thereby driving the debugging shaft 3 to complete the closing or opening action. The switching between the normal and standby switches is achieved through the innovative design of the above structure. During the switching, the debugging shaft 3 first moves from the main closing position 22 or auxiliary closing position 23 on one side of the debugging slot 2 to the middle position 21. Then, the debugging shaft 3 moves from the middle position 21 of the debugging slot 2 to the auxiliary closing position 23 or main closing position 22 on the other side. This action... By using the guide block 4, the original main closing position 22 or auxiliary closing position 23 is blocked, thereby causing the test shaft 3 to move to the other side of the auxiliary closing position 23 or main closing position 22. During the process of the test shaft 3 entering the auxiliary closing position 23 or main closing position 22, the test shaft 3 abuts against the switching block 5, thereby driving the switching block 5 to move. The switching block 5 simultaneously drives the linked guide block 4 to move to the side where the current closing position is. Then, when the closing position changes again, the guide block 4 can prevent the test shaft 3 from returning to this closing position, and thus be guided to the other side of the closing position.

[0020] The following diagram illustrates the movement process between components: Figure 1 , 2 In the initial state, the test shaft 3 is located in the secondary closing position 23, and the guide block 4 is located at the exit position of the secondary closing position 23. During the switching of the two circuits, the start coil 0 causes the linkage group 1 to move the test shaft 3. First, the test shaft 3 moves from the secondary closing position 23 to the middle position 21. The test shaft 3 leaves the secondary closing position 23 and reaches the middle position 21 through the gap between the guide block 4 and the inner wall of the secondary closing position 23. Then, the test shaft 3 is driven to re-close the circuit. Since the guide block 4 blocks the secondary closing position 23, the test shaft 3 moves to the main closing position 22. During the process of the test shaft 3 entering the main closing position 22, it will abut against the switching block 5 and drive the switching block 5 to move. The movement of the switching block 5 drives the guide block 4 to move to the exit position of the main closing position 22. Then, during the next closing position switch, the test shaft 3 can be guided by the guide block 4 to close the circuit on the other side, and the switching block 5 and the guide block 4 perform synchronous position adjustment and switching.

[0021] The power output mechanism corresponding to the debugging shaft 3 is an externally connected swing arm 31. When the debugging shaft 3 is in the main closing position 22 or the auxiliary closing position 23, the swing arm 31 swings left or right, thereby driving the output shaft 32 to complete the left or right rotation. The output shaft 32 is externally connected to the moving contact. The left or right rotation causes the moving contact to make contact with the corresponding commonly used side stationary contact or the spare side stationary contact to complete the closing. This utility model adjusts the movement trajectory of the debugging shaft 3 through the guide block 4 to realize the switching of two circuits. In the entire movement process, the structural switching is achieved in one go by the coordinated action of the debugging shaft 3, the switching block 5, and the guide block 4. There is no need to set up additional power components for driving, which can greatly simplify the power input and output mechanism. The original two sets of power input and output mechanisms are optimized 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.

[0022] As an improved specific implementation, the debugging slot 2 is set on a rack 6. The debugging slot 2 is in the shape of an inverted "Y". The middle position 21 is located in the upper middle part, and the main closing position 22 and the auxiliary closing position 23 are located on both sides in the lower part. The guide block 4 moves to the side of the main closing position 22 or the auxiliary closing position 23 at the intersection of the "Y" shape to block it. The switching block 5 is located in the middle position of the main closing position 22 or the auxiliary closing position 23 to correspond to the arrival of the debugging shaft 3 and abut.

[0023] like Figure 1 , 3 As shown, the specific debugging slot 2 forms a middle position 21 in the upper middle part, and a main closing position 22 and a secondary closing position 23 on both sides in the lower part. The main closing position 22 and the secondary closing position 23 are symmetrically arranged. When the debugging shaft 3 falls and is guided to the closing position on one side by the guide block 4, the position of the debugging shaft 3 can be kept stable. The guide block 4 blocks the debugging shaft 3 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 3. The switching block 5 extends to the middle position of the main closing position 22 or the secondary closing position 23 on both sides. When the debugging shaft 3 moves to the outside and touches the switching block 5, it can drive the switching block 5 to move outward, while the other side moves inward.

[0024] As an improved specific implementation, the guide block 4 and the switching block 5 are rotatably mounted on the arrangement frame 6 via a rotating shaft.

[0025] like Figure 1-4 As shown, the rotating shaft 31 is positioned slightly below the central axis of the debugging slot 2, which allows the guide block 4 and the switching block 5 to swing left and right to adjust their positions during rotation. The two blocks then engage with the debugging shaft 3 at their respective intersections and sides relative to the debugging slot 2.

[0026] As an improved specific implementation, the end of the guide block 4 that extends into the intersection of the debugging slot 2 is set as a "V"-shaped guide wall 41. When the debugging shaft 3 moves from the main closing position 22 or the auxiliary closing position 23 to the middle position 21, it passes through the gap between the slot wall of the debugging slot 2 and one side of the "V"-shaped guide wall 41. When the debugging shaft 3 moves from the middle position 21 to the main closing position 22 or the auxiliary closing position 23, it is blocked by the other side of the "V"-shaped guide wall 41 and guided to the movable position.

[0027] like Figure 1-4 As shown, when the "V"-shaped guide wall 41 is located at the opening of the main closing position 22 or the auxiliary closing position 23, there is a gap between it and the inner wall on the upper side of the main closing position 22 or the auxiliary closing position 23. This gap allows the debugging shaft 3 to pass through when it moves to the middle position 21. However, when the debugging shaft 3 recloses, the inclined side of the "V"-shaped guide wall 41 facing the middle position 21 can effectively block the entry of the debugging shaft 3, and this inclined side forms a continuous guide surface with the lower groove wall on the other side (see reference). Figure 3 As shown), it can guide the debugging shaft 3 to move smoothly to the other side to complete the closing.

[0028] As an improved specific implementation, the switching block 5 includes a contact frame 51 symmetrically arranged on the upper left and right and a toggle frame 52 arranged on the lower part. The two contact frames 51 are respectively located in the middle position of the main closing position 22 or the auxiliary closing position 23. The toggle frame 52 cooperates with the lower part of the guide block 4. When the debugging shaft 3 moves in the main closing position 22 or the auxiliary closing position 23 and reaches the contact frame 51, the contact frame 51 is rotated by continuous movement, and the guide block 4 is moved by the toggle frame 52.

[0029] like Figure 1-4 As shown, the left and right symmetrical contact frames 51 are spread out to both sides, and the adjustment shaft 3 moves between the two contact frames 51. When the adjustment shaft 3 moves to one side of the contact frame 51, it pushes the contact frame 51 outward with the continued movement, and the switching block 5 rotates as a whole, while the other side of the contact frame 51 rotates inward. At the same time, the lower toggle frame 52 abuts against the guide block 4 when it rotates, causing the guide block 4 to rotate synchronously, and switching the "V"-shaped guide wall 41 to the opposite side position to block and guide the adjustment shaft 3 during the next circuit switching.

[0030] As an improved specific implementation, a receiving cavity 53 is formed in the middle of the toggle frame 52, and a toggle block 42 extending into the receiving cavity 53 is provided at the lower part of the guide block 4. When in the stopped state, the toggle block 42 is located on one side of the receiving cavity 53 and thus abuts against the inner wall of one side of the toggle frame 52. During the swinging process of the switching block 5, the inner wall of the other side of the toggle frame 52 reaches the position of the toggle block 42 and drives the toggle block 42 to rotate.

[0031] like Figure 2 ,4 As shown, the arrangement of the receiving cavity 53 ensures that the switching block 5 and the guide block 4 are not rigidly connected. When the switching block 5 starts to swing, the actuating brackets 52 on both sides of the receiving cavity 53 move first, and the actuating block 42 is not driven to rotate in the receiving cavity 53. Only after the actuating bracket 52 on the other side moves to abut against the actuating block 42 will the actuating bracket 52 drive the actuating block 42 to move and rotate. This structural design improves the structural flexibility of the guide block 4 itself, avoids rigid contact, and can adapt to the fact that the rotation angle or amplitude of the guide block 4 itself is smaller than the rotation angle or amplitude of the switching block 5.

[0032] As an improved specific implementation, the switching block 5 is also externally connected to a swing link 7. One end of the swing link 7 is rotatably mounted on the arrangement frame 6, and the other end is connected to a reset spring 8. The middle part of the swing link 7 is connected to the switching block 5. When the switching block 5 starts to rotate from one side, it abuts against the swing link 7 and rotates, stretching or compressing the reset spring 8. When the switching block 5 rotates past the middle position, the swing link 7 releases its elastic force from the reset spring 8, causing the swing link 7 and the switching block 5 to reset until the switching block 5 stops on the other side.

[0033] like Figure 2 , 4 As shown, the swing link 7 and the return spring 8 are designed to ensure that the position of the switching block 5 is properly adjusted and accurately positioned without any random movement. Structurally, the middle position of the switching block 5's rotation is taken as the limit position of the return spring 8's extension. During the movement towards the middle position, the switching block 5 pushes the swing link 7 away with the rotation radius, thereby stretching or compressing the return spring 8. After passing the middle position, i.e., when the switching block 5 has reached the maximum extension position of the swing link 7, the return spring 8 releases its elastic force, causing the swing link 7 and the switching block 5 to quickly return to their original positions and remain properly positioned by the limit of the return spring 8. During this process, the switching block 5 also drives the guide block 4 to quickly complete the position switching and limit the movement. The overall structure is highly efficient and stable, making it suitable for long-term use.

[0034] 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 two-position dual-power transfer switch, characterized in that: The device includes a coil (0), a connecting rod assembly (1), a debugging slot (2), and a debugging shaft (3). The iron core of the coil (0) is connected to the connecting rod assembly (1), and the connecting rod assembly (1) is connected to the debugging shaft (3). The debugging shaft (3) is housed in the debugging slot (2) for movement. The debugging slot (2) includes a central position (21) and two main closing positions (22) and auxiliary closing positions (23) on either side. It also includes movable guide blocks (4) corresponding to the debugging shaft (3) and the debugging slot (2). The switching block (5) and the guide block (4) are adjusted to the main closing position (22) or the auxiliary closing position (23) of the debugging slot (2) by the movement, blocking the debugging shaft (3) from entering the blocking side and guiding it to the other side. The switching block (5) is abutted when the debugging shaft (3) enters the main closing position (22) or the auxiliary closing position (23). The switching block (5) moves and drives the guide block (4) to move, completing the position switching of the guide block (4) in the main closing position (22) or the auxiliary closing position (23).

2. A two position dual power transfer switch according to claim 1, characterized in that: The debugging slot (2) is set on a rack (6). The debugging slot (2) is in the shape of an inverted "Y". The middle position (21) is located in the upper middle part, and the main closing position (22) and the auxiliary closing position (23) are located on the lower sides. The guide block (4) moves to the side of the main closing position (22) or the auxiliary closing position (23) at the intersection of the "Y" shape to block. The switching block (5) is located at the middle position of the main closing position (22) or the auxiliary closing position (23) to correspond to the arrival of the debugging shaft (3) and abut.

3. A two position dual power transfer switch according to claim 2, characterized in that: The guide block (4) and the switching block (5) are rotatably mounted on the arrangement frame (6) via a rotating shaft.

4. A two position dual power transfer switch according to claim 3, characterized in that: The guide block (4) extends into the intersection of the debugging slot (2) at one end, which is set as a "V"-shaped guide wall (41). When the debugging shaft (3) moves from the main closing position (22) or the auxiliary closing position (23) to the middle position (21), it passes through the gap between the slot wall of the debugging slot (2) and one side of the "V"-shaped guide wall (41). When the debugging shaft (3) moves from the middle position (21) to the main closing position (22) or the auxiliary closing position (23), it is blocked by the other side of the "V"-shaped guide wall (41) and guided to the movable position.

5. A two-position dual-power transfer switch according to claim 3 or 4, characterized in that: The switching block (5) includes a contact frame (51) symmetrically arranged on the upper left and right and a toggle frame (52) arranged on the lower part. The two contact frames (51) are respectively located in the middle position of the main closing position (22) or the auxiliary closing position (23). The toggle frame (52) cooperates with the lower part of the guide block (4). When the adjustment shaft (3) moves in the main closing position (22) or the auxiliary closing position (23) and reaches the contact frame (51), the contact frame (51) is rotated by continuous movement, and the guide block (4) is moved by the toggle frame (52).

6. A two-position dual-power transfer switch according to claim 5, characterized in that: The middle part of the actuating frame (52) forms a receiving cavity (53). The lower part of the guide block (4) is provided with an actuating block (42) that extends into the receiving cavity (53). When the stop state is reached, the actuating block (42) is located on one side of the receiving cavity (53) and then abuts against the inner wall of one side of the actuating frame (52). During the swinging process of the switching block (5), the inner wall of the other side of the actuating frame (52) reaches the position of the actuating block (42) and drives the actuating block (42) to rotate.

7. A two position dual power transfer switch according to claim 5, characterized in that: The switching block (5) is also connected to a swing link (7). One end of the swing link (7) is rotatably mounted on the arrangement frame (6), and the other end is connected to a reset spring (8). The middle part of the swing link (7) is connected to the switching block (5). When the switching block (5) starts to rotate from one side, it abuts against the swing link (7) to rotate and stretch or compress the reset spring (8). When the switching block (5) rotates past the middle position, the swing link (7) releases elastic force from the reset spring (8) to reset the swing link (7) and the switching block (5) to the other side.

8. A two-position dual-power transfer switch according to any one of claims 1-4, characterized in that: The debugging shaft (3) is connected to a swing arm (31) externally, and the swing arm (31) is connected to the output shaft (32) to transmit the opening and closing action outward.

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