Dual-power change-over switch

Abstract

The utility model discloses a dual power supply change-over switch, which comprises a shell and a plurality of support rotating blocks arranged in the shell, one side of each support rotating block is provided with an accommodating groove, the inner wall of each accommodating groove is provided with a transmission rod, each support rotating block is provided with a fixing hole, the fixing holes are communicated with the accommodating grooves, the accommodating grooves are provided with shifting blocks, and the shifting blocks are connected with the transmission rods. A second through hole corresponding to the transmission rod is formed in the shifting block in a penetrating mode, a first through hole corresponding to the fixing hole is further formed in the shifting block in a penetrating mode, a concave part is arranged on one side of the shifting block, and a first microswitch and a second touch switch are installed on the inner side wall of the shell. One side of the shifting block is provided with a shifting rod used for shifting the first microswitch and the second light touch switch, the supporting rotating block is provided with the containing groove, the shifting block is arranged in the containing groove, the shifting block is attached to the supporting rotating block, and therefore the space, occupied by the shifting block, in the shell is reduced, the structure is more compact, and the size is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of dual power switches, in particular to a dual power conversion switch. Background Art

[0002] A dual power transfer switch is an electrical device used to automatically or manually switch between two independent power sources in a power grid system. The switch is designed to ensure that when one power source fails or a power outage occurs, the other power source can seamlessly take over the power supply, thereby ensuring the continuous operation of critical loads.

[0003] An existing dual power transfer switch is internally provided with an indicator mechanism to indicate its status so that staff can quickly determine the power supply situation. However, the indicator mechanism has a relatively complex structure, occupies a large amount of space, and increases in size. Utility Model Content

[0004] The purpose of the present utility model is to provide a dual power transfer switch to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the utility model provides the following technical solution: a dual power conversion switch, comprising a shell and a plurality of support rotating blocks installed inside the shell, wherein a receiving groove is provided on one side of the support rotating block, a transmission rod is provided on the inner wall of the receiving groove, a fixing hole is opened on the support rotating block, and the fixing hole is connected to the receiving groove, a shift block is installed at the receiving groove, a second through hole corresponding to the transmission rod is penetrated on the shift block, a first through hole corresponding to the fixing hole is penetrated on the shift block, a recess is provided on one side of the shift block, a first micro switch and a second tact switch are respectively installed on the inner side wall of the shell, a shift rod for toggling the first micro switch and the second tact switch is provided on one side of the shift block, a limiting groove for limiting the shift rod is provided on the inner side wall of the shell, a second electromagnet and a first electromagnet are respectively installed on the bottom of the inner wall of the shell, an armature is slidably installed between the second electromagnet and the first electromagnet, a transmission frame for pushing the transmission rod to move is installed on the armature, and a semicircular groove is provided on the transmission frame.

[0006] As a preferred solution of the present invention, an indicator light is installed inside the shell, and an indicator hole corresponding to the indicator light is opened on the outside of the shell.

[0007] As a preferred solution of the present invention, a movable contact piece is movably installed inside the supporting rotating block, and a spring piece is provided between the movable contact piece and the supporting rotating block.

[0008] As a preferred solution of the present invention, the transmission rod and the support turn block are an integrally formed structure, a docking block is provided on one side of the support turn block, a docking groove matching the docking block is provided on one side of the support turn block, a handle is installed on the outside of the support turn block, and a connecting rod is provided at the bottom of the support turn block.

[0009] As a preferred solution of the present invention, a base is movably installed at the bottom of the inner wall of the shell, a vertical rod is provided on the base, a sleeve is provided on the outer side of the vertical rod, a spring is provided on the outer side of the sleeve, a contact groove is provided on the top of the sleeve for matching with the connecting rod, an arc-shaped protrusion is provided at the bottom of the base, and an arc-shaped groove is provided on the inner wall of the shell for matching with the arc-shaped protrusion.

[0010] As a preferred solution of the present invention, an output wiring frame is installed inside the shell, and an output copper bus is provided on one side of the output wiring frame. A first input wiring frame and a second input wiring frame are respectively installed inside the shell, and a first input copper bus is provided on one side of the first input wiring frame, and a second input copper bus is provided on one side of the second input wiring frame.

[0011] As a preferred solution of the present invention, an arc-extinguishing grid is provided inside the housing.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention provides a receiving groove on the supporting rotary block, installs the shift block into the receiving groove, and fits the shift block and the supporting rotary block, thereby reducing the space occupied by the shift block inside the shell, and uses the original transmission rod on the supporting rotary block to fix the shift block, without the need to set up an additional structure to fix the shift block, making the structure more compact and reducing the volume, and directly toggling the first micro switch or the second touch switch through the shift rod on the shift block to indicate the state of the dual power conversion switch, the transmission structure is very simple, ensuring its reliability, and the limit groove limits the shift rod to prevent it from deflecting, further improving reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0015] Figure 3 For this utility model Figure 2 Enlarged view of point A in the middle;

[0016] Figure 4 This is a schematic structural diagram of the first micro switch and the second micro switch of the utility model;

[0017] Figure 5 This is a schematic diagram of the structure of the support rotating block of the utility model;

[0018] Figure 6 This is a schematic diagram of the structure of the utility model after multiple support transfer blocks are combined;

[0019] Figure 7 This is a structural diagram of the shift block of the utility model;

[0020] Figure 8 This is a schematic diagram of the structure of the support rotating block and the shifting block of the utility model;

[0021] Figure 9 This is a schematic diagram of the structure of the sleeve and the vertical rod of the utility model;

[0022] Figure 10 This is a structural diagram of the armature and the transmission frame of the utility model;

[0023] Figure 11 This is a structural diagram of the output wiring frame and output copper busbar of the utility model.

[0024] In the figure: 1, housing; 2, handle; 3, output wiring frame; 4, indicator hole; 5, moving contact piece; 6, support block; 7, docking block; 8, output copper busbar; 9, first input copper busbar; 10, first input wiring frame; 11, arc extinguishing grid; 12, second input copper busbar; 13, second input wiring frame; 14, first electromagnet; 15, second electromagnet; 16, transmission frame; 17, transmission rod; 18, semicircular groove; 19, connecting rod; 2 0. Sleeve; 21. Armature; 22. Base; 23. Arc-shaped protrusion; 24. Arc-shaped groove; 25. First micro switch; 26. Push rod; 27. Second tact switch; 28. Spring; 29. Docking groove; 30. Accommodating groove; 31. Fixing hole; 32. Push block; 33. Recessed portion; 34. First through hole; 35. Second through hole; 36. Vertical rod; 37. Contact groove; 38. Limiting groove; 39. Indicator light; 40. Spring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figures 1 to 11The utility model provides a technical solution: a dual power transfer switch, comprising a housing 1, and a plurality of support blocks 6 mounted inside the housing 1, a receiving groove 30 is provided on one side of the support block 6, a transmission rod 17 is provided on the inner wall of the receiving groove 30, a fixing hole 31 is opened on the support block 6, and the fixing hole 31 is connected to the receiving groove 30, a shift block 32 is installed at the receiving groove 30, a second through hole 35 corresponding to the transmission rod 17 is penetrated on the shift block 32, and a second through hole 35 corresponding to the transmission rod 17 is penetrated on the shift block 32. 1 corresponding to the first through hole 34, after the shift block 32 is installed, a screw can be screwed into the first through hole 34 and the fixing hole 31 to ensure that the shift block 32 is firmly fixed, and the head of the screw will not protrude from the surface of the shift block 32 through the provided recessed portion 33. A recessed portion 33 is provided on one side of the shift block 32. The first micro switch 25 and the second tact switch 27 are respectively installed on the inner side wall of the housing 1. A lever 26 for toggling the first micro switch 25 and the second tact switch 27 is provided on one side of the shift block 32. The inner wall is provided with a limiting groove 38 for limiting the lever 26. The limiting groove 38 can prevent the lever 26 from deflecting when it rotates. The bottom of the inner wall of the housing 1 is respectively installed with a second electromagnet 15 and a first electromagnet 14. When the first electromagnet 14 or the second electromagnet 15 is energized, the armature 21 is attracted, and the armature 21 drives the transmission frame 16 to move. The transmission frame 16 rotates the support block 6 through the connecting rod 19, and the support block 6 rotates the moving contact piece 5, thereby realizing the switching of the circuit. The moving contact piece 5 rotates at the same time. It will also drive the shift block 32 to rotate, the shift block 32 causes the shift rod 26 to rotate, and the shift rod 26 will shift the first micro switch 25 or the second touch switch 27 to make it operate, so that the indicator light 39 is energized, thereby indicating the state of the dual power conversion switch. An armature 21 is slidably installed between the second electromagnet 15 and the first electromagnet 14, and a transmission frame 16 for pushing the transmission rod 17 to move is installed on the armature 21. A semicircular groove 18 is provided on the transmission frame 16, which facilitates the transmission frame 16 to drive the transmission rod 17 to move.

[0027] Among them, an indicator light 39 is installed inside the shell 1, and there are two indicator lights 39. The first micro switch 25 and the second touch switch 27 control the indicator lights 39 respectively. The indicator light 39 is used to indicate the status of the dual power conversion switch. An indicator hole 4 corresponding to the indicator light 39 is opened on the outside of the shell 1. The indicator hole 4 is convenient for the staff to observe the indicator light 39.

[0028] Among them, a moving contact piece 5 is movably installed inside the supporting rotating block 6, and a spring piece 28 is provided between the moving contact piece 5 and the supporting rotating block 6. The spring piece 28 is used to apply a thrust to the moving contact piece 5, so that a stable contact pressure can be maintained between the moving contact piece 5 and the first input copper bus 9 or the second input copper bus 12 to ensure good contact.

[0029] Among them, the transmission rod 17 and the support turn block 6 are an integrally formed structure, a docking block 7 is provided on one side of the support turn block 6, and a docking groove 29 is provided on one side of the support turn block 6 to cooperate with the docking block 7. The docking groove 29 and the docking block 7 enable multiple support turn blocks 6 to rotate at the same time. The number of support turn blocks 6 can be increased or decreased according to actual conditions to improve practicality. A handle 2 is installed on the outside of the support turn block 6. The staff can rotate the support turn block 6 through the handle 2 to achieve manual switching. A connecting rod 19 is provided at the bottom of the support turn block 6.

[0030] Among them, a base 22 is movably installed at the bottom of the inner wall of the shell 1, and a vertical rod 36 is provided on the base 22. A sleeve 20 is sleeved on the outer side of the vertical rod 36, and the sleeve 20 can slide on the outer side of the vertical rod 36. A spring 40 is sleeved on the outer side of the sleeve 20. The spring 40 applies a thrust to the connecting rod 19 through the contact groove 37, which not only accelerates the rotation of the support rotating block 6, thereby speeding up the circuit switching speed, but also the spring 40 can apply a thrust to the sleeve 20 to ensure that the contact groove 37 is always in contact with the connecting rod 19. The top of the sleeve 20 is provided with a contact groove 37 that matches the connecting rod 19, and the bottom of the base 22 is provided with an arc-shaped protrusion 23. The inner wall of the shell 1 is provided with an arc-shaped groove 24 that matches the arc-shaped protrusion 23. The arc-shaped protrusion 23 cooperates with the arc-shaped groove 24 so that the base 22 can swing, thereby preventing the sleeve 20 from being stuck with the vertical rod 36.

[0031] Among them, an output wiring frame 3 is installed inside the shell 1, and an output copper bus 8 is provided on one side of the output wiring frame 3. A first input wiring frame 10 and a second input wiring frame 13 are respectively installed inside the shell 1. The output wiring frame 3, the first input wiring frame 10 and the second input wiring frame 13 are all used for wiring. The first input wiring frame 10 and the second input wiring frame 13 are respectively used to connect to the normal power supply and the backup power supply. A first input copper bus 9 is provided on one side of the first input wiring frame 10, and a second input copper bus 12 is provided on one side of the second input wiring frame 13.

[0032] Among them, an arc extinguishing grid 11 is provided inside the shell 1. When the moving contact piece 5 contacts or separates from the first input copper bus 9 and the second input copper bus 12, an arc will be generated. The arc extinguishing grid 11 can extinguish the arc quickly to prevent the arc from damaging other parts.

[0033] Specifically, when switching the circuit, after the first electromagnet 14 is energized, the first electromagnet 14 attracts the armature 21 to move it to the right, and the armature 21 drives the transmission frame 16 to move. The transmission frame 16 drives the support block 6 to rotate counterclockwise through the transmission rod 17. The support block 6 drives the movable contact piece 5 to rotate. The support block 6 gradually compresses the spring 40 through the sleeve 20. Please refer to Figure 3At this time, the spring 40 reaches the maximum compression amount, and then the support rotating block 6 continues to rotate. The spring 40 will bounce off and push the sleeve 20 to move. The sleeve 20 accelerates the rotation of the support rotating block 6 through the connecting rod 19, and the movable contact piece 5 separates from the second input copper bar 12 and quickly contacts the first input copper bar 9. Conversely, when the second electromagnet 15 is energized, the movable contact piece 5 will separate from the first input copper bar 9 and quickly contact the second input copper bar 12, thereby realizing the switching of the circuit. The handle 2 can also be manually moved to rotate the support rotating block 6 to realize manual switching of the circuit. When the support rotating block 6 rotates to switch the circuit, the transmission rod 17 will also rotate the shift block 32 together. The shift block 32 drives the shift rod 26 to rotate. The shift rod 26 will shift the first micro switch 25 or the second touch switch 27 to make it operate, so that one of the indicator lights 39 is energized, thereby indicating the state of the dual power conversion switch.

[0034] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "two ends", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0035] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one such feature.

[0036] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0037] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dual power transfer switch, comprising a housing (1), and a plurality of supporting blocks (6) mounted inside the housing (1), characterized in that: A receiving groove (30) is provided on one side of the supporting rotating block (6), a transmission rod (17) is provided on the inner wall of the receiving groove (30), a fixing hole (31) is provided on the supporting rotating block (6), and the fixing hole (31) is communicated with the receiving groove (30), a shifting block (32) is installed at the receiving groove (30), a second through hole (35) corresponding to the transmission rod (17) is provided on the shifting block (32), a first through hole (34) corresponding to the fixing hole (31) is also provided on the shifting block (32), a recessed portion (33) is provided on one side of the shifting block (32), and a first micro switch ( 25) and a second touch switch (27), a shifting rod (26) for shifting the first micro switch (25) and the second touch switch (27) is provided on one side of the shifting block (32), a limiting groove (38) for limiting the shifting rod (26) is provided on the inner side wall of the housing (1), a second electromagnet (15) and a first electromagnet (14) are respectively installed at the bottom of the inner wall of the housing (1), an armature (21) is slidably installed between the second electromagnet (15) and the first electromagnet (14), a transmission frame (16) for pushing the transmission rod (17) to move is installed on the armature (21), and a semicircular groove (18) is provided on the transmission frame (16).

2. The dual power transfer switch according to claim 1, characterized in that: An indicator light (39) is installed inside the housing (1), and an indicator hole (4) corresponding to the indicator light (39) is opened on the outside of the housing (1).

3. The dual power transfer switch according to claim 1, characterized in that: A movable contact piece (5) is movably installed inside the supporting rotating block (6), and a spring piece (28) is provided between the movable contact piece (5) and the supporting rotating block (6).

4. The dual power transfer switch according to claim 1, characterized in that: The transmission rod (17) and the supporting rotating block (6) are an integrally formed structure. A docking block (7) is provided on one side of the supporting rotating block (6). A docking groove (29) matching the docking block (7) is provided on one side of the supporting rotating block (6). A handle (2) is installed on the outside of the supporting rotating block (6). A connecting rod (19) is provided at the bottom of the supporting rotating block (6).

5. The dual power transfer switch according to claim 4, characterized in that: A base (22) is movably mounted at the bottom of the inner wall of the shell (1), a vertical rod (36) is provided on the base (22), a sleeve (20) is sleeved on the outer side of the vertical rod (36), a spring (40) is sleeved on the outer side of the sleeve (20), a contact groove (37) is provided on the top of the sleeve (20) and is matched with the connecting rod (19), an arc-shaped protrusion (23) is provided at the bottom of the base (22), and an arc-shaped groove (24) is provided on the inner wall of the shell (1) and is matched with the arc-shaped protrusion (23).

6. The dual power transfer switch according to claim 1, characterized in that: An output wiring frame (3) is installed inside the housing (1), and an output copper busbar (8) is provided on one side of the output wiring frame (3). A first input wiring frame (10) and a second input wiring frame (13) are respectively installed inside the housing (1), and a first input copper busbar (9) is provided on one side of the first input wiring frame (10), and a second input copper busbar (12) is provided on one side of the second input wiring frame (13).

7. The dual power transfer switch according to claim 1, characterized in that: An arc-extinguishing grid (11) is provided inside the housing (1).

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