Opening-closing double-hook cramp structure and dual-power change-over switch with same

Abstract

The utility model relates to an opening and closing double-hook cramp structure and a dual power supply change-over switch with the same, the opening and closing double-hook cramp structure comprises a first cramp and a second cramp, each cramp is fixed through a respective rotating shaft, and for any cramp, one end is hook-shaped, and the other end is provided with a limiting groove; two ends of the energy storage spring are respectively clamped with the limiting grooves of the first buckle piece and the second buckle piece; and the flat shaft is arranged between the first buckle piece and the second buckle piece, the flat shaft is respectively abutted against the first buckle piece and the second buckle piece under the action of the energy storage spring, and the flat shaft is rotated to drive the buckle pieces to rotate so as to realize opening. Compared with the prior art, the utility model has the advantages that the buckling piece is reliable in closing and clamping; the opening time is short, the space is saved, the structure is simple, and the hardware structure is simple.

Description

Technical Field

[0001] The utility model relates to the technical field of power switches, in particular to a switching double hook piece structure and a dual power conversion switch with the structure. Background Art

[0002] The dual power automatic transfer switch (ATSE) is a common low-voltage electrical appliance, often used in important power distribution occasions, for switching between the normal power supply and the backup power supply, ensuring that when the normal power supply fails during the power supply process, it will quickly switch to the backup power supply to ensure the normal power supply of the load end. The dual power transfer switch usually has manual and automatic functions. The automatic function means that when the transfer switch is powered on, when one power supply fails, the transfer switch will automatically switch to another power supply to ensure the normal power supply of the load end.

[0003] In the prior art, a switch-off clip and a set of selection mechanisms are generally used to complete the opening and closing actions of two power supplies. The structural parts are relatively complex, occupy a large space, and are relatively expensive. Utility Model Content

[0004] The purpose of the utility model is to overcome the defects of the prior art and provide a double hook piece structure for opening and closing and a dual power supply conversion switch with the structure, so as to realize closing and tripping with a simple hardware structure.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] One aspect of the utility model provides a double hook and buckle structure for opening and closing a switch, comprising:

[0007] A first buckle plate and a second buckle plate, wherein each buckle plate is fixed by its own rotating shaft, and for any buckle plate, one end is hook-shaped and the other end has a limiting groove;

[0008] The energy storage spring has two ends respectively engaged with the limiting grooves of the first buckle piece and the second buckle piece;

[0009] The flat shaft is arranged between the first buckle plate and the second buckle plate. The flat shaft abuts against the first buckle plate and the second buckle plate respectively under the action of the energy storage spring. The buckle plates are driven to rotate by rotating the flat shaft to realize the gate opening.

[0010] As a preferred technical solution, the hook-shaped end of the first buckle piece and the hook-shaped end of the second buckle piece match the power shaft.

[0011] As a preferred technical solution, it also includes:

[0012] A connecting rod, fixedly connected to the flat shaft;

[0013] A connecting plate, provided with an opening, through which the connecting rod is movably connected to the connecting plate;

[0014] The excitation action module is connected to the connection plate and is used to drive the connection plate to move when electromagnetic excitation is generated, and to drive the flat shaft to rotate through the connecting rod.

[0015] As a preferred technical solution, the excitation action module includes:

[0016] Static iron core;

[0017] An excitation coil is coaxially arranged with the static iron core;

[0018] A moving iron core connected to the connecting plate;

[0019] A return spring is connected to the moving iron core.

[0020] As a preferred technical solution, the return spring is connected to the moving iron core through a yoke.

[0021] As a preferred technical solution, the opening is a waist-shaped hole.

[0022] As a preferred technical solution, the rotating shaft of the first buckle piece and the rotating shaft of the second buckle piece are fixed on the bracket.

[0023] As a preferred technical solution, the first buckle piece and the second buckle piece are symmetrically arranged.

[0024] As a preferred technical solution, it also includes:

[0025] The fixing plate is connected to the rotating shafts of the first buckle piece and the second buckle piece respectively.

[0026] Another aspect of the utility model provides a dual power conversion switch, comprising:

[0027] The aforementioned double hook and buckle structure for opening and closing the switch;

[0028] A first power supply shaft is provided with a slot matching with a hook-shaped end of the first buckle piece;

[0029] The second power supply shaft is provided with a slot matching with the hook-shaped end of the second buckle piece.

[0030] Compared with the prior art, the utility model has the following beneficial effects:

[0031] Achieve disengagement with a simple hardware structure: The present application utilizes an energy storage spring to keep the first buckle plate and / or the second buckle plate in a closed state, and utilizes the rotation of the rotating shaft to achieve disengagement of the first buckle plate and / or the second buckle plate. The disengagement structure is simple, occupies little space, and has low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a three-dimensional schematic diagram of the double hook and buckle plate structure for opening and closing the switch in the embodiment and one side of the structure;

[0033] Figure 2 It is a schematic plan view of the double-hook-and-catch plate structure for opening and closing the switch in the embodiment and one side of the structure;

[0034] Figure 3 It is a three-dimensional schematic diagram of the double hook piece structure for opening and closing the switch in the embodiment and the other side of the structure;

[0035] Figure 4 It is a schematic diagram of the double hook plate structure for opening and closing the switch in the embodiment and the other side of the structure.

[0036] Among them, 1. static iron core, 2. excitation coil, 3. reset spring, 4. yoke, 5. moving iron core, 6. bracket, 7. connecting plate, 8. energy storage spring, 9. flat shaft, 10. connecting rod, 11. first buckle plate, 12. second buckle plate, 13. fixed plate, 14. rotating shaft, 15. first power rotating shaft, 16. second power rotating shaft. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of them. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0038] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present utility model. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0040] Example 1

[0041] This embodiment provides a double-hook structure for opening and closing the switch, so as to realize the tripping by using a simple hardware structure. Figure 1 , Figure 2 It is a three-dimensional diagram and a plan view of one side of the structure, which specifically includes:

[0042] The first buckle plate 11 and the second buckle plate 12, each buckle plate is fixed on the bracket 6 through its own rotating shaft 14, the two buckle plates are symmetrical in structure and symmetrically arranged, one end of the buckle plate is hook-shaped, used to cooperate with the slot on the power shaft to maintain the closed state, and the other end of the buckle plate has a limiting slot.

[0043] The limiting grooves of the first clip 11 and the second clip 12 are connected with the same energy storage spring 8, which is used to keep the hook ends of the two clips open so as to engage with the power shaft in the non-disconnected state. Figure 1 , 2 The energy storage spring 8 is not shown in FIG. 4 , and the specific configuration of the energy storage spring 8 is as follows: Figure 3 For example.

[0044] The flat shaft 9 is arranged between the first buckle piece 11 and the second buckle piece 12. The flat shaft 9 abuts against the first buckle piece 11 and the second buckle piece 12 respectively under the action of the energy storage spring 8. The head of the flat shaft is designed so that it does not affect the buckling of the two buckles in the normal position. When the flat shaft 9 is rotated, the buckles will be driven to rotate to open the gate. Figure 2 For reference, when the flat shaft 9 rotates counterclockwise to a certain angle, the first buckle piece 11 will be disengaged and the second buckle piece 12 will be in the state shown in the figure, thereby achieving the opening of the gate.

[0045] See also Figure 2 The structure is also provided with a fixing plate 13 connected to the rotating shafts of the first buckle piece 11 and the second buckle piece 12 respectively.

[0046] In order to control the rotation of the flat shaft 9, an excitation action module is provided on the other side of the structure in this embodiment. It should be emphasized that the rotation of the flat shaft 9 can also be achieved by other structures that achieve the same function, such as a suitable steering gear.

[0047] See also Figure 3 and Figure 4 , the structure also includes:

[0048] The connecting rod 10 is fixedly connected to the flat shaft 9.

[0049] The connecting plate 7 is provided with a waist hole, and the connecting rod 10 is movably connected to the connecting plate 7 through the waist hole.

[0050] The stationary iron core 1 , the excitation coil 2 and the moving iron core 5 are coaxially arranged, wherein the moving iron core 5 is connected to the connecting plate 7 , and the return spring 3 is connected to the moving iron core 5 through the yoke 4 .

[0051] The return spring 3 is connected to the moving iron core 5 .

[0052] When the excitation coil 2 generates electromagnetic excitation, the static iron core 1 overcomes the elastic force of the return spring 3 to attract the moving iron core 5, thereby driving the connecting plate 7 to move. Figure 3 Since the fixing points of the connecting plate 7 and the connecting rod 10 are not in the same straight line as the flat shaft 9, the movement of the connecting plate 7 will drive the flat shaft 9 to rotate through the connecting rod 10, thereby controlling the opening of the second buckle plate 12.

[0053] The working principle of this structure is as follows:

[0054] The flat shaft 9 is installed in the bracket 6, and the first buckle piece 11 and the second buckle piece 12 are installed. The flat shaft 9 can rotate flexibly. The first buckle piece 11 and the second buckle piece 12 are fixed with a fixing plate 13, and the energy storage spring 8 is installed.

[0055] Install the static iron core 1 axially into the excitation coil 2, with the screw holes of the static iron core facing outward, and then install the assembled excitation coil 2 into the magnetic yoke 4, and use screws to fix and lock it into the static iron core 1. Fix the assembled magnetic yoke 4 group to the bracket 6 with screws.

[0056] The moving iron core 5 is assembled to the yoke assembly through the reset spring 3, and the connecting plate 7 and the moving iron core 5 are fixed with a retaining spring. Then the connecting rod 10 is installed and fixed with the connecting plate 7 and the flat shaft 9 with screws. The moving iron core 5 can move flexibly in the axial direction in the yoke 4, and can be flexibly reset by the reset spring 3.

[0057] The dual power conversion switch is located in the normal power closing position. When an abnormality occurs in the normal power supply, the excitation coil 2 is energized, the moving iron core 5 is magnetized, and an electromagnetic attraction is generated, causing the moving iron core 5 to be pulled toward the static iron core 1, driving the connecting plate 7 to move linearly, and the connecting plate 7 drives the connecting rod 10 to rotate, and the connecting rod 10 drives the flat shaft 9 to rotate, and the flat shaft 9 drives the first buckle piece 11 to rotate, and the first buckle piece 11 is disengaged, reaching the disengagement position of the second buckle piece 12 (symmetrical).

[0058] Example 2

[0059] On the basis of Example 1, this embodiment provides a dual power conversion switch, including the double hook and buckle structure for opening and closing as described in the embodiment, and an electromagnet for providing opening and closing driving force, the switch involves two electromagnets, one is an opening electromagnet, and the other is a main electromagnet, and the double hook and buckle transmission mechanism includes two opening and closing buckles, and the two buckles correspond to the normal power supply and the standby power supply respectively. The main electromagnet is connected to the double hook and buckle transmission mechanism through a guide plate, and the main electromagnet excitation coil is energized to transmit power to drive the first power supply shaft 15 on the main circuit to rotate, and after passing the closing point, the double hook transmission mechanism hooks with the shaft on the main circuit to complete the closing action.

[0060] After the opening electromagnet excitation coil in the double hook buckle structure is energized, the power transmission drives the flat shaft in the double hook transmission mechanism. Through the angular rotation, the double hook transmission mechanism is disengaged from the rotating shaft on the main circuit, realizing the opening of the dual power switch.

[0061] This switch uses a main electromagnet and a disconnecting electromagnet to realize the hooking and disconnecting of the double hook transmission mechanism and the rotating shaft on the main circuit, driving the opening and closing of the dual power switch, optimizing the opening and closing mechanism, shortening the opening and closing strokes, and the lock adopts a hook structure, which will not be disturbed by external forces and slip after being hooked. Compared with a single disconnecting buckle, the double hook buckle structure reduces the occupied space, shortens the opening time, and makes the lock more reliable.

[0062] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the utility model, and these modifications or replacements should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A double hook plate structure for opening and closing the switch, characterized in that: include: A first buckle plate (11) and a second buckle plate (12), wherein each buckle plate is fixed by a respective rotating shaft (14), and for any buckle plate, one end is hook-shaped and the other end is provided with a limiting groove; An energy storage spring (8), both ends of which are respectively engaged with the limiting grooves of the first buckle plate (11) and the second buckle plate (12); The flat shaft (9) is arranged between the first buckle plate (11) and the second buckle plate (12). The flat shaft (9) is respectively in contact with the first buckle plate (11) and the second buckle plate (12) under the action of the energy storage spring (8). The buckle plates are driven to rotate by rotating the flat shaft (9) to realize the gate opening.

2. A double hook plate structure for opening and closing the switch according to claim 1, characterized in that: The hook-shaped end of the first buckle piece (11) and the hook-shaped end of the second buckle piece (12) match the power supply shaft.

3. A double hook plate structure for opening and closing the switch according to claim 1, characterized in that: Also includes: A connecting rod (10) fixedly connected to the flat shaft (9); The connecting plate (7) is provided with an opening, and the connecting rod (10) is movably connected to the connecting plate (7) through the opening; The excitation action module is connected to the connecting plate (7) and is used to drive the connecting plate (7) to move when electromagnetic excitation is generated, and to drive the flat shaft (9) to rotate through the connecting rod.

4. A double hook plate structure for opening and closing the switch according to claim 3, characterized in that: The excitation action module comprises: Static iron core (1); An excitation coil (2) is coaxially arranged with the static iron core (1); A moving iron core (5) connected to the connecting plate (7); A return spring (3) is connected to the moving iron core (5).

5. A double hook plate structure for opening and closing the switch according to claim 4, characterized in that: The return spring (3) is connected to the moving iron core (5) via a yoke (4).

6. A double hook plate structure for opening and closing the switch according to claim 3, characterized in that: The opening is a waist-shaped hole.

7. A double hook plate structure for opening and closing a switch according to claim 1, characterized in that: The rotating shaft of the first buckle piece (11) and the rotating shaft of the second buckle piece (12) are fixed on the bracket (6).

8. A double hook plate structure for opening and closing a switch according to claim 1, characterized in that: The first buckle piece (11) and the second buckle piece (12) are symmetrically arranged.

9. A double hook plate structure for opening and closing a switch according to claim 1, characterized in that: Also includes: The fixing plate (13) is respectively connected to the rotating shafts of the first buckle piece (11) and the second buckle piece (12).

10. A dual power conversion switch, characterized in that: include: The double hook plate structure for opening and closing the switch as claimed in any one of claims 1 to 9; A first power supply shaft (15) is provided with a slot matching one end of the hook-shaped first buckle piece; The second power supply shaft (16) is provided with a slot matching one end of the hook of the second buckle piece.

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