Transmission drive plate assembly of dual-power change-over switch

Abstract

The utility model discloses a transmission drive plate assembly of a dual power supply change-over switch, which comprises drive plates and a moving contact assembly, and a first column body and a second column body are respectively arranged at the front and the back of two sides between the two drive plates. The driving plate is provided with a guide groove which is used for enabling the first column body to avoid the touch hook to enable the touch hook to be reset to the initial position, and at least one first elastic piece is arranged between the first column body and the second column body and used for enabling the first column body to be reset after avoiding. The touch hook is avoided and reset through the movable first column body, the first elastic piece is combined and arranged in the drive plate, it is ensured that the first column body is rapidly reset, and preparation is made for rotation of the drive plate; the elastic piece is additionally arranged on the transmission mechanism, space is fully utilized, the drive plate is kept at the position after movement, the overall size is reduced, occupied space is reduced, flexible layout is provided, design difficulty and manufacturing cost are reduced, and the product has the advantages of improving the space utilization rate and reducing the manufacturing cost.

Description

Technical Field

[0001] This utility model relates to the field of switchgear technology, and in particular to a transmission dial assembly for a dual power transfer switch. Background Technology

[0002] The dual power transfer switch mainly consists of a main / standby power transfer switch, a transfer actuator, and a controller. The controller monitors and collects the switch status in real time through a sampling line, and drives the actuator based on the monitored status information to realize the switching of power supply, thereby switching from a faulty power supply to a normal power supply. This ensures the stability of the power supply to the load end and the smooth and reliable operation of the load equipment.

[0003] According to the authorized publication number CN212625229U, "Electromagnetic Drive Mechanism and Dual Power Transfer Switch," an electromagnetic drive mechanism and a dual power transfer switch having the electromagnetic drive mechanism are disclosed. The electromagnetic drive mechanism includes: a drive member movable from a first position to a second position under the action of an electromagnet, the drive member being biased toward the first position, and a first end of the drive member fixedly connected to the moving iron core of the electromagnet; a lever pivotally mounted on the drive member; and a rotating member connected to the moving contact, such that rotation of the rotating member can drive the moving contact to move, the rotating member further including an actuating part; wherein the drive member is biased relative to the longitudinal centerline of the moving iron core, and the lever extends toward the rotating member, such that the contact position between the lever and the actuating part is located at or near the longitudinal centerline of the moving iron core.

[0004] The above technical solution has the following defects: the biasing elastic element applies bias to the rotating element so that the rotating element is positioned toward one of the first angular position, the third angular position, and the second angular position. After carefully observing the attached drawings of the technical solution, we can find that the biasing elastic element is set on both sides of the rotating element and adopts a staggered stacking design strategy to avoid interference with the lever and ensure the smooth operation of the mechanism.

[0005] However, the staggered stacking design of the biasing elastic element increases the overall size of the electromagnetic drive mechanism. This undoubtedly exacerbates the space constraints, especially given the already limited internal space of the dual-power transfer switch. The space shortage not only reduces the usable space for other components but also imposes stricter requirements on their size and functionality. This, to some extent, increases the overall product manufacturing cost and brings new considerations to subsequent design and manufacturing. Therefore, the applicant has developed a beneficial design and found a solution to the above problems. The technical solution described below arose from this background. Summary of the Invention

[0006] The purpose of this invention is to overcome the shortcomings of the above-mentioned technical solutions and provide a product that improves space utilization and reduces manufacturing costs.

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] A transmission dial assembly for a dual-power transfer switch includes a dial and a moving contact assembly. A first column and a second column are respectively provided on both sides between the two dials. The dial has a guide groove for the first column to avoid the contact hook and return to its initial position. At least one first elastic element is provided between the first column and the second column for the first column to return to its initial position after avoidance. The dial has a transmission shaft, and transmission mechanisms are provided at both ends of the transmission shaft and are hinged to the moving contact assembly. The transmission mechanism has a second elastic element for keeping the dial in place after rotation.

[0009] Preferably, it also includes an upper stationary base and a lower stationary base, wherein the upper stationary base and the lower stationary base are provided with sliding grooves for the moving contact assembly to move, and connecting shafts are provided on both sides of the upper stationary base and the lower stationary base.

[0010] Preferably, the transmission mechanism includes a transmission plate, a first linkage plate, and a second linkage plate. One end of the transmission plate is hinged to the transmission shaft. The first linkage plate is pivotally mounted on one of the connecting shafts and on the other connecting shaft. The transmission plate, the first linkage plate, and the second linkage plate are hinged to the moving contact assembly.

[0011] Preferably, the second linkage plate has retaining rings at both ends, which respectively abut against the connecting shaft and the transmission plate or the first linkage plate. The second elastic element is disposed between the retaining rings, and the position of the second linkage plate is opposite to that of the upper static base and the lower static base.

[0012] Preferably, the dial is provided with a clearance groove to allow the touch hook to return to its initial position, and is located on one side of the guide groove.

[0013] Preferably, the upper and lower ends of the outer walls of the first column and the second column are provided with fixing grooves.

[0014] Preferably, the two ends of the first elastic element are engaged with the fixing groove, and a distance is left between the two first elastic elements for the hook to move.

[0015] Preferably, the first elastic element is a tension spring, and the second elastic element is a spring.

[0016] Beneficial effects:

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This invention achieves the function and expected technical effect of avoiding the touch hook and resetting it to its initial position through a movable first column. At the same time, the first elastic element is placed between the two dials to ensure that the first column can quickly reset after completing the avoidance activity, preparing for the next rotation of the dial. Moreover, the addition of the first elastic element in the transmission mechanism makes full use of the remaining space in the dual power supply changeover switch and effectively maintains the position of the dial after rotation. Through the cooperation of the above structures, not only is the overall volume of the dial reduced and the space occupied less, but it also provides more spacious and flexible layout space for other components, effectively reducing the difficulty in the design process and bringing cost reduction to the subsequent manufacturing process. Attached Figure Description

[0019] Figure 1 This is a top view of the transmission dial assembly of a dual power supply changeover switch according to this utility model.

[0020] Figure 2 This is a side cross-sectional view of the transmission dial assembly of a dual-power transfer switch according to this utility model.

[0021] Figure 3 This is an exploded view of the transmission dial assembly of a dual power supply changeover switch according to the present invention.

[0022] Figure 4 This is a cross-sectional schematic diagram of the rotational movement of the dial when the upper stationary base of the transmission dial assembly of the dual power supply changeover switch of this utility model is powered on.

[0023] Figure 5 This is a cross-sectional schematic diagram of the rotational movement of the dial when the power is turned on in the lower stationary base of the transmission dial assembly of the dual power supply changeover switch of this utility model.

[0024] The correspondence between the labels and component names in the attached figures is as follows:

[0025] Reference numerals: 1. Dial; 2. Moving contact assembly; 3. First elastic element; 4. Drive shaft; 5. Transmission mechanism; 6. Upper stationary base; 7. Lower stationary base; 8. Slide groove; 9. Connecting shaft; 101. Hook; 11. First column; 12. Second column; 13. Guide groove; 14. Relief groove; 15. Fixing groove; 51. Second elastic element; 52. Transmission plate; 53. First linkage plate; 54. Second linkage plate; 55. Retaining ring. Detailed Implementation

[0026] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. 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. Therefore, they should not be construed as limitations on this utility model.

[0028] In this embodiment of the utility model, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0029] Reference example Figures 1 to 5 A transmission dial assembly for a dual power supply changeover switch includes a dial 1 and a moving contact assembly 2. A first column 11 and a second column 12 are respectively provided on the front and rear sides between the two dials 1. The dial 1 is provided with a guide groove 13 for the first column 11 to avoid the contact hook 101 and return it to its initial position. At least one first elastic element 3 is provided between the first column 11 and the second column 12 for the first column 11 to return to its initial position after being avoided. The dial 1 is provided with a transmission shaft 4. The two ends of the transmission shaft 4 are provided with transmission mechanisms 5 and are hinged to the moving contact assembly 2. The transmission mechanism 5 is provided with a second elastic element 51 for the dial 1 to be held in place after rotation. The second column 12 is fixed.

[0030] It is worth mentioning that it also includes an upper stationary base 6 and a lower stationary base 7. The upper stationary base 6 and the lower stationary base 7 are provided with a sliding groove 8 for the moving contact assembly 2 to move. The upper stationary base 6 and the lower stationary base 7 are provided with connecting shafts 9 on both sides. The sliding groove 8 provides guidance for the moving contact assembly 2, ensuring that the upper stationary base 6 and the lower stationary base 7 can switch smoothly between the main and backup power supplies, ensuring the continuity and stability of the power supply. The connecting shafts 9 provide support points for the first linkage plate 53 and the second linkage plate 54, and limit the range of motion of the moving contact assembly 2.

[0031] It is worth mentioning that the transmission mechanism 5 includes a transmission plate 52, a first linkage plate 53, and a second linkage plate 54. One end of the transmission plate 52 is hinged to the transmission shaft 4. The first linkage plate 53 is pivotally mounted on one of the connecting shafts 9 and on the other connecting shaft 9. The transmission plate 52, the first linkage plate 53, and the second linkage plate 54 are hinged to the moving contact assembly 2. When the transmission shaft 4 rotates, it transmits the rotational force to the transmission plate 52, thereby synchronously driving the first linkage plate 53 and the second linkage plate 54 to perform linkage actions, ensuring the smoothness and coordination of the main and backup power switching.

[0032] It is worth mentioning that the second linkage plate 54 is provided with retaining rings 55 at both ends, which respectively abut against the connecting shaft 9 and the transmission plate 52 or the first linkage plate 53. The second elastic element 51 is disposed between the retaining rings 55. The position of the second linkage plate 54 is opposite to that of the upper stationary base 6 and the lower stationary base 7. When the stationary contact in the upper stationary base 6 is separated from the moving contact assembly 2 and forms an open or closed state, the stationary contact in the lower stationary base 7 is in close contact with the moving contact assembly 2 and forms a conductive state. When the upper stationary base 6 and the lower stationary base 7 are in close contact, the second linkage plate 54 is in close contact with the moving contact assembly 2 and forms a conductive state. When none of the 7 are conducting, the second elastic element 51 remains in its natural state and is not subjected to any compression. Once any of the stationary bases enters the conducting state, the first linkage plate 53 and the second linkage plate 54 of the upper stationary base 6 and the lower stationary base 7 form a V-shaped structure, and the V-shaped structures of the upper stationary base 6 and the lower stationary base 7 are set opposite to each other. The release of energy by the second elastic element 51 allows the V-shaped structure to be maintained, thereby keeping the dial 1 in the position after rotation and effectively resisting the influence of external force vibration on the dial 1 and preventing it from being displaced.

[0033] It is worth mentioning that the dial 1 is provided with a clearance groove 14 to allow the touch hook 101 to return to its initial position, and is located on one side of the guide groove 13. The clearance groove 14 adopts a design structure that is inclined towards the middle of the dial 1. The clearance groove 14 prevents the dial 1 from interfering with the touch hook 101 after the dial 1 rotates.

[0034] It is worth mentioning that the upper and lower ends of the outer walls of the first column 11 and the second column 12 are provided with fixing grooves 15. The fixing grooves 15 prevent the first elastic element 3 from being displaced during the stretching or energy release process, and prevent interference with the hook 101.

[0035] It is worth mentioning that the two ends of the first elastic element 3 are engaged with the fixing groove 15, and there is a distance between the two first elastic elements 3 for the hook 101 to move.

[0036] It is worth mentioning that the first elastic element 3 is set as a tension spring, and the second elastic element 51 is set as a spring.

[0037] The working principle of this utility model is described as follows:

[0038] Example 1

[0039] When the hook 101 on one side of the dial 1 is pulled by the driving force, it moves towards the first column 11. After contacting the first column 11, it drives the dial 1 to rotate. This rotation, through the transmission shaft 4 and the transmission mechanism 5, drives the moving contact assembly 2 in the upper stationary base 6 or the lower stationary base 7 to move synchronously, thus turning on the power to the upper stationary base 6 or the lower stationary base 7. At this time, the second column 12 on this side of the dial 1 is away from the hook 101, while the second column 12 on the other side is in the movable position of the hook 101. The operating state of the mechanism is shown in the attached figure. Figure 4 As shown, when the dial 1 and the moving contact assembly 2 reach the designated position, the opposing second elastic element 51 keeps the dial 1 and the moving contact assembly 2 in the moved position.

[0040] Example 2

[0041] As the touch hook 101 enters the reset process, it will abut against the first column 11 and push it away from the touch hook 101 in the direction guided by the guide groove 13. At this time, the first elastic element 3 is stretched by the first column 11 and enters the energy storage state. The second elastic element 51 provides stable support for the movement of the first column 11. When the touch hook 101 is reset to the initial position, the first column 11 is disengaged from the touch hook 101, and the first elastic element 3 releases energy to make the first column 11 quickly reset, preparing for the next movement of the dial 1.

[0042] Example 3

[0043] When the hook 101 on the other side of the dial 1 is pulled by the driving force, the hook 101 drives the dial 1 to perform a reset action after contacting the second column 12. At this time, the moving contact assembly 2 in the upper stationary base 6 and the lower stationary base 7 remains disconnected from the stationary contacts inside the upper stationary base 6 and the lower stationary base 7. The operating state of the operating mechanism is as shown in the attached figure. Figure 1 As shown, after resetting, the hook 101 immediately initiates the next pulling action, quickly driving the dial 1 to continue rotating. The operating state of the mechanism is shown in the attached figure. Figure 5 As shown, this enables rapid switching between primary and backup power supplies. It is important to note that this switching occurs within milliseconds, making it not only fast and efficient but also unaffected by the continuity and stability of the power supply.

[0044] The above design scheme can enable the product to achieve the advantages of improved space utilization and reduced manufacturing costs.

[0045] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. A transmission dial assembly for a dual-power transfer switch, comprising a dial (1) and a moving contact assembly (2), characterized in that: A first column (11) and a second column (12) are respectively provided on the front and back sides between the two dials (1). The dial (1) is provided with a guide groove (13) for the first column (11) to avoid the hook (101) and return it to the initial position. At least one first elastic element (3) is provided between the first column (11) and the second column (12) for the first column (11) to return to the initial position after avoiding the hook. The dial (1) is provided with a drive shaft (4). The two ends of the drive shaft (4) are provided with a drive mechanism (5) and are hinged to the moving contact assembly (2). The drive mechanism (5) is provided with a second elastic element (51) for the dial (1) to remain in the position after rotation.

2. The transmission dial assembly of the dual power supply changeover switch according to claim 1, characterized in that: It also includes an upper stationary base (6) and a lower stationary base (7), wherein the upper stationary base (6) and the lower stationary base (7) are provided with a sliding groove (8) for the moving contact assembly (2) to move, and a connecting shaft (9) is provided on both sides of the upper stationary base (6) and the lower stationary base (7).

3. The transmission dial assembly of the dual power supply changeover switch according to claim 2, characterized in that: The transmission mechanism (5) includes a transmission plate (52), a first linkage plate (53), and a second linkage plate (54). One end of the transmission plate (52) is hinged to the transmission shaft (4). The first linkage plate (53) is pivotally mounted on one of the connecting shafts (9) and on the other connecting shaft (9). The transmission plate (52), the first linkage plate (53), and the second linkage plate (54) are hinged to the moving contact assembly (2).

4. The transmission dial assembly of the dual power supply changeover switch according to claim 3, characterized in that: The second linkage plate (54) has retaining rings (55) at both ends, which abut against the connecting shaft (9) and the transmission plate (52) or the first linkage plate (53) respectively. The second elastic element (51) is arranged between the retaining rings (55). The position of the second linkage plate (54) is opposite to that of the upper static base (6) and the lower static base (7).

5. The transmission dial assembly of the dual power supply changeover switch according to claim 1, characterized in that: The dial (1) is provided with a clearance groove (14) for the clearance hook (101) to return to the initial position, and is located on one side of the guide groove (13).

6. The transmission dial assembly of the dual power supply changeover switch according to claim 1, characterized in that: The upper and lower ends of the outer walls of the first column (11) and the second column (12) are provided with fixing grooves (15).

7. The transmission dial assembly of the dual power supply changeover switch according to claim 6, characterized in that: The two ends of the first elastic element (3) are engaged with the fixed groove (15), and there is a distance between the two first elastic elements (3) for the hook (101) to move.

8. The drive dial assembly of the dual power supply changeover switch according to any one of claims 2 to 7, characterized in that: The first elastic element (3) is configured as a tension spring, and the second elastic element (51) is configured as a spring.

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