Electric rotary knife switch

Abstract

The utility model discloses an electric rotary knife switch, which relates to the field of assembly and disassembly of electrical cabinet components and comprises a plurality of insulating plates, a plurality of copper bar groups are rotatably connected onto the insulating plates, one end of each copper bar group is provided with a hinge piece used for being hinged with a component, and the other end of each copper bar group is provided with a gap used for being plugged with another component. The insulating plate is rotationally connected with a driving handle through a connecting shaft, and the driving handle is connected with a driving mechanism. According to the utility model, an operator does not need to stretch hands into a narrow space to connect, mount or disconnect and dismount the hard copper bar, and the two parts can be effectively connected in the narrow space.

Description

Technical Field

[0001] The utility model relates to the field of assembly and disassembly of electrical cabinet components, in particular to an electric rotary knife switch. Background Art

[0002] Electrical cabinet is a general term for electrical equipment such as distribution cabinets, control cabinets, switch cabinets, etc., which has multiple components such as UPS and busbars. In the electrical cabinet, the components are usually connected by hard copper bars. For example, the connection between UPS and busbars is usually connected by hard copper bars. The connection between UPS and busbars is realized so that when the city power is interrupted (accidental power outage), UPS will immediately use the power of the battery inside the machine to continue to supply AC power to the load through the inverter conversion method, so that the load can maintain normal operation and protect the load software and hardware from damage.

[0003] In electrical cabinets, the service life of components is inconsistent. For example, the service life of UPS is relatively shorter than that of other components, and the frequency of replacement and maintenance is higher. However, due to the narrow space at the connection position of components, it is difficult to operate the connection between components when disassembling and installing components, which is inconvenient for disassembling and assembling components, affecting the efficiency of component replacement and maintenance. For example, the space at the connection position between UPS and busbar is only one fist high. When disassembling and assembling UPS, it is difficult to connect UPS and busbar through hard copper busbar. Therefore, this field needs a technical solution to solve the problem of "how to connect components in a narrow space". Utility Model Content

[0004] The purpose of the utility model is to provide an electric rotary knife switch to solve the above-mentioned problems, which can effectively connect two parts in a small space without the operator having to put his hand into a small space to connect or disconnect the hard copper busbar.

[0005] The technical solution adopted by the utility model is as follows: an electric rotary knife switch, comprising a plurality of insulating plates, on which a plurality of copper bar groups are rotatably connected, one end of the copper bar group having a hinge for hinged connection with a component, and the other end of the copper bar group having a gap for plugging with another component; the insulating plate is rotatably connected to a driving handle through a connecting shaft, and the driving handle is connected to a driving mechanism.

[0006] Furthermore, the hinged part is a hinged shaft and / or a hinged hole connected to the end of the copper bar group.

[0007] Furthermore, the copper bar group is rotatably connected to the insulating plate via connecting bolts.

[0008] Furthermore, the copper bar group is composed of two single copper bars, and the single copper bars in each copper bar group are arranged in a mirror image with respect to the insulating board; or the copper bar group is composed of two single copper bars close to each other, and the two ends of the single copper bar are bent sections away from the close-fitting surface, so that the copper bar group is a double Y shape.

[0009] Furthermore, the copper bar group also includes an elastic pressing piece arranged on the outside of the single copper bar, and the elastic pressing piece is pressed to the outside of the single copper bar by a pressing bolt, and the pressing bolt runs through the entire copper bar group.

[0010] Furthermore, the axis of the clamping bolt is perpendicular to the surface of the single copper bar, and the geometric center point of the elastic clamping sheet is on the axis of the clamping bolt.

[0011] Furthermore, the clamping bolt serves as a connecting bolt.

[0012] Furthermore, a limiting groove for limiting the rotation angle of the copper bar group is provided at a position on the insulating plate corresponding to the copper bar group.

[0013] Furthermore, all the insulating plates are connected to the driving handle via a same connecting shaft.

[0014] Furthermore, the driving mechanism comprises a driving motor, and the driving motor is connected to the driving handle via a mechanical transmission mechanism; the mechanical transmission mechanism is capable of converting rotation into translation.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0016] The utility model pre-hinges and installs the copper bar group and a component. When installing and disassembling another component that needs to be frequently replaced and maintained, it is only necessary to drive the connecting shaft through the driving handle of the driving mechanism to move the insulating plate, so that the copper bar group rotates around the hinge position to achieve connection or disconnection between the copper bar group and the other component. Therefore, there is no need for an operator to reach into a narrow space to connect, install, disconnect or disassemble the hard copper bar. The two components can be effectively connected in a narrow space, and the efficiency of disassembly and installation during component replacement and maintenance is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be described by way of examples with reference to the accompanying drawings, in which:

[0018] Figure 1 This is a schematic diagram of the closed structure of the electric rotary knife switch disclosed in the utility model;

[0019] Figure 2 The utility model discloses a drive-type knife opening and closing structure.

[0020] Markings in the figure: 1-insulating plate; 11-limiting groove; 2-copper bar group; 21-single copper bar; 22-elastic clamping plate; 23-gap; 24-hinge; 3-connecting bolt; 4-clamping bolt; 5-connecting shaft; 6-driving handle; 7-driving mechanism; 71-driving wheel; 72-driven wheel; 73-crankshaft; 74-connecting rod. DETAILED DESCRIPTION

[0021] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0022] Any feature disclosed in this specification, unless otherwise stated, can be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0023] Example 1

[0024] like Figure 1-Figure 2 As shown, an electric rotary knife switch includes a plurality of insulating plates 1, the insulating plates 1 can be ceramic plates, and a plurality of copper bar groups 2 are rotatably connected to the insulating plates 1. Due to the insulating isolation function of the insulating plates 1, the copper bar groups 2 installed on the same insulating plate 1 will not be mutually conductive, effectively avoiding the occurrence of short circuits; one end of the copper bar group 2 has a hinge 24, and the copper bar group 2 can be hinged to one of the components (usually a component that is not often replaced, such as a busbar) through the hinge 24, that is, the copper bar group 2 rotates around the component with the hinge 24 as the rotation center; it should be noted that the copper bar group 2 is rotatably connected to the insulating plate 1 so that there is no motion interference when the copper bar group 2 rotates around the hinge position, ensuring that the movement of the copper bar group 2 is stable The other end of the copper bar group 2 has a gap 23, which is plugged into the outlet bus on another component (usually a frequently replaced component, such as UPS), that is, as the copper bar group 2 rotates, the outlet bus on the other component can be inserted into or out of the gap 23 to achieve conduction or disconnection with the copper bar group 2, thereby realizing the connection and disconnection of the two components; the insulating plate 1 is rotatably connected to the driving handle 6 through the connecting shaft 5, and the driving handle 6 is connected to the driving mechanism 7. The driving mechanism 7 generates movement, and then transmits the movement to the insulating plate 1 through the driving handle 6 and the connecting shaft 5. The insulating plate 1 follows the movement and rotates with the copper bar group 2, realizing the on and off state conversion of the switch, and then realizing the connection and disconnection state conversion of the two components.

[0025] It should be noted that, because the copper bar group 2 will rotate around the hinge position, the rotational connection between the insulating plate 1 and the driving handle 6 through the connecting shaft 5 can effectively avoid motion interference and ensure that the insulating plate 1 can effectively move in translation, especially when the motion source in the driving mechanism 7 is rotational motion. Specifically, the connecting shaft 5 can be rotationally connected to the insulating plate 1 and / or the driving handle 6 to realize the rotational connection between the insulating plate 1 and the driving handle 6.

[0026] In this embodiment, the connection between the UPS components and the busbar components in the electrical cabinet is taken as an example to explain the specific work. The busbar is installed on the top of the electrical cabinet, above the UPS; the electric rotary knife switch is installed between the busbar and the UPS, and has three insulating plates 1, and each insulating plate 1 is provided with three groups of copper bar groups 2, that is, a total of nine groups of copper bar groups 2, which correspond to the outgoing line bar on the top of the UPS and the overlapping part in the busbar in terms of quantity and spatial position; the hinge 24 on the top of the copper bar group 2 is pre-connected with the overlapping part of the busbar. When installing the UPS, the copper bar group 2 in the electric rotary knife switch is driven to the disconnected position by the driving mechanism 7 (when installing the UPS, the copper bar group 2 will not be plugged into the outgoing line bar on the UPS), and then the UPS is sent to the corresponding position inside the electrical cabinet; the driving mechanism 7 When the UPS is started, the insulating plate 1 moves with the insulating plate 1, and the insulating plate 1 rotates with the copper bar group 2 around the hinged position (the copper bar group 2 is equivalent to the "crank", the insulating plate 1 is equivalent to the "connecting rod", the hinged position of the copper bar group 2, the copper bar group 2 and the insulating plate 1 are equivalent to the connecting rod crank structure, but the movement source comes from the insulating plate 1). With the rotation of the copper bar group 2, the outgoing bus bar on the top of the UPS is inserted into the gap 23 at the other end of the copper bar group 2 and is connected with the copper bar group 2, that is, the connection between the UPS and the bus bar is completed; when disassembling the UPS, the driving mechanism 7 is started and moves with the insulating plate 1, and the insulating plate 1 rotates with the copper bar group 2 around the hinged position to reset the copper bar group 2, and the outgoing bus bar on the top of the UPS is separated from the gap 23 at the other end of the copper bar group 2, so that the UPS and the bus bar are disconnected, and the UPS in the electrical cabinet can be taken out, and the disassembly of the UPS is completed.

[0027] It should be noted that in this field, in the method of plugging to achieve circuit conduction, the size of the insertion gap (gap 23 in this embodiment) must be smaller than the thickness of the insert (the output line row in this embodiment) to ensure stable contact; this technical feature is common knowledge to technicians and does not need to be over-elaborated in this specification.

[0028] As described above, in this embodiment, during the entire process of installing or removing components (UPS), there is no need for the operator to reach into a narrow space to connect or disconnect the hard copper busbar, so that the two components can be effectively connected in a narrow space, ensuring the efficiency of disassembly during component replacement and maintenance.

[0029] Example 2

[0030] Based on Example 1, a specific implementation method that can be implemented is further proposed.

[0031] Regarding the hinge 24 , the following embodiments are proposed in this embodiment.

[0032] In the first embodiment, the hinged part 24 is a hinged shaft, which can be a shaft fixed on the copper busbar group 2, or a bolt used as a hinged bolt. In this embodiment, a hinged bolt is preferred, and the hinged bolt passes through the lap hole on the component (busbar) to realize the hinged connection between the copper busbar group 2 and the component.

[0033] In a second embodiment, the hinged member 24 is a hinged hole. After the hinged hole and the overlapped hole on the component (busbar) are coaxially aligned, they are restrained by bolts to realize the hinged connection between the copper bar group 2 and the component.

[0034] A third implementation mode adopts both the first implementation mode and the second implementation mode, but it is necessary to ensure that the hinge hole and the hinge shaft are coaxial.

[0035] In a feasible implementation manner, the copper bar group 2 is rotatably connected to the insulating plate 1 via a connecting bolt 3, and the connecting bolt 3 is connected to the middle of the copper bar group 2 to avoid position interference.

[0036] It should be noted that, in the present embodiment, gaskets are used at the bolt connection positions to ensure the pre-tightening capacity while improving the stability of the rotation and avoiding jamming.

[0037] Example 3

[0038] Based on any one of the implementations in Examples 1-2, a feasible implementation is further proposed.

[0039] Regarding the copper bar group 2, the following implementation methods are proposed.

[0040] In the first embodiment, the copper bar group 2 is composed of two single copper bars 21. The two single copper bars 21 in each copper bar group 2 are arranged in a mirror image with respect to the insulating board 1. In fact, the two single copper bars 21 clamp the insulating board 1. The connecting bolts 3 in Example 2 pass through the single copper bar 21-insulating board 1-single copper bar 21 in sequence and are fastened by nuts to realize the hinge connection between the copper bar group 2 and the insulating board 1. In this embodiment, since there is an insulating board 1 between the single copper bars 21, the size of the gap 23 in the copper bar group 2 is the thickness of the insulating board 1. The gap 23 can be formed naturally after the copper bar group 2 is assembled without additional processing.

[0041] In the second embodiment, the copper bar group 2 is composed of two single copper bars 21 which are close to each other, and the two ends of the single copper bar 21 are bent sections away from the close-fitting surface, so that the copper bar group 2 is a double Y-shape, that is, both ends of the copper bar group 2 have forks, and the connecting bolts 3 in Example 2 pass through the single copper bar 21-single copper bar 21-insulating plate 1 in sequence and are then fastened by nuts; one of the forks at the two ends is used as a gap 23; the other is used as a position for setting a hinge 24 to be connected to the overlapping hole on the component (busbar).

[0042] A feasible implementation manner, the copper bar group 2 also includes an elastic clamping sheet 22 arranged on the outside of the single copper bar 21, and the cross-section of the elastic clamping sheet 22 is similar to a groove shape; the elastic clamping sheet 22 is clamped to the outside of the single copper bar 21 by a clamping bolt 4, and the clamping bolt 4 runs through the entire copper bar group 2; the use of the elastic clamping sheet 22 can effectively increase the elastic force generated by the deformation of the two single copper bars 21 in the copper bar group 2, improve the fitting stability of the single copper bar 21 and the outlet bar on the component or / and the overlapping part on the component, and ensure the stability of circuit conduction.

[0043] Furthermore, the axis of the clamping bolt 4 is perpendicular to the surface of the single copper bar 21, and the geometric center point of the elastic clamping plate 22 is on the axis of the clamping bolt 4, so that the elastic force of the elastic clamping plate 22 is evenly distributed, and the elastic force of the elastic clamping plate 22 on the single copper bar 21 is evenly distributed.

[0044] In a feasible implementation manner, the clamping bolt 4 is used as the connecting bolt 3, which ensures the effect of the above implementation manner while reducing the number of parts used.

[0045] Example 4

[0046] Based on any one of the implementations in Examples 1-3, a feasible implementation is further proposed.

[0047] A feasible implementation manner is that a limiting groove 11 is provided on the insulating board 1 at a position corresponding to the copper bar group 2, and the limiting groove 11 limits the rotation angle of the copper bar group 2 to prevent the copper bar group 2 from rotating too much, resulting in an unstable connection between the copper bar group 2 and the outgoing line bar, or the copper bar group 2 contacts the adjacent outgoing line bar after being separated from the outgoing line bar; specifically, the limiting groove 11 has an angle with respect to the length direction of the insulating board 1; the copper bar group 2 is in an inclined state after being separated from the outgoing line bar, at this time, the side surface of the copper bar is in contact with or attached to the side wall of the limiting groove 11; the copper bar is in a vertical state after being connected to the outgoing line bar, at this time, the side surface of the copper bar is in contact with the two ends of the limiting groove 11, thereby achieving a limiting effect.

[0048] In a feasible implementation manner, all insulating plates 1 are connected to the driving handle 6 via the same connecting shaft 5, so that the movement of all insulating plates 1 is synchronized, thereby making the movement of all copper busbar groups 2 synchronized, further achieving the purpose of connecting or disconnecting the outgoing line busbars for all copper busbar groups 2 at the same time.

[0049] In a feasible implementation manner, the driving mechanism 7 includes a driving motor, which is connected to the driving handle 6 through a mechanical transmission mechanism; the mechanical transmission mechanism is capable of converting rotation into translation; the motion conversion and structural features between the driving motor and the copper busbar group 2 are described in detail as follows.

[0050] The mechanical transmission mechanism includes a driving wheel 71, a driven wheel 72, a crankshaft 73 and a connecting rod 74. According to the actual installation space, the driving wheel 71 is coaxially connected to the rotating shaft of the driving motor; the driving wheel 71 and the driven wheel 72 can be arranged in a parallel manner or the driving wheel 71 and the driven wheel 72 can be arranged in a perpendicular manner (which can be achieved by using bevel gears); the length direction of the crankshaft 73 is perpendicular to the axis of the driven wheel 72, one end of the crankshaft 73 is fixedly connected to the rotating shaft of the driven wheel 72, and the other end is rotatably connected to one end of the connecting rod 74, and the other end of the connecting rod 74 is fixedly connected to the driving handle 6; that is, the driving motor transmits the rotational motion to the driven wheel 72, and the driven wheel 72 rotates with the crankshaft 73. Since the crankshaft 73 is rotatably connected to the connecting rod 74, the connecting rod 74 swings with the crankshaft 73, so that the driving handle 6 swings around the connecting shaft 5, and then swings around the hinged position of the copper bar group 2 and the bus bar with the connecting shaft 5 and the insulating plate 1, so that the copper bar group 2 rotates around the hinged position with the bus bar.

[0051] The present invention is not limited to the above-mentioned specific implementation modes, but extends to any new features or any new combination disclosed in this specification, as well as any new method or process steps or any new combination disclosed.

Claims

1. An electric rotary knife switch, characterized in that: The invention comprises a plurality of insulating plates (1), wherein a plurality of copper bar groups (2) are rotatably connected to the insulating plates (1), wherein one end of the copper bar group (2) has a hinge (24) for being hinged to a component, and the other end of the copper bar group (2) has a gap (23) for being plugged into another component; the insulating plates (1) are rotatably connected to a driving handle (6) via a connecting shaft (5), and the driving handle (6) is connected to a driving mechanism (7).

2. The electric rotary knife switch according to claim 1, characterized in that: The hinged part (24) is a hinged shaft and / or a hinged hole which is connected to the end of the copper bar group (2).

3. The electric rotary knife switch according to claim 1, characterized in that: The copper bar group (2) is rotatably connected to the insulating plate (1) via a connecting bolt (3).

4. The electric rotary knife switch according to claim 3, characterized in that: The copper bar group (2) is composed of two single copper bars (21), and the single copper bars (21) in each copper bar group (2) are arranged in a mirror image with respect to the insulating plate (1); or the copper bar group (2) is composed of two single copper bars (21) that are closely attached to each other, and the two ends of the single copper bars (21) are bent sections away from the closely attached surface, so that the copper bar group (2) is a double Y shape.

5. The electric rotary knife switch according to claim 4, characterized in that: The copper bar group (2) further comprises an elastic clamping sheet (22) arranged on the outside of the single copper bar (21), and the elastic clamping sheet (22) is clamped to the outside of the single copper bar (21) by a clamping bolt (4), and the clamping bolt (4) runs through the entire copper bar group (2).

6. The electric rotary knife switch according to claim 5, characterized in that: The axis of the clamping bolt (4) is perpendicular to the surface of the single copper bar (21), and the geometric center point of the elastic clamping sheet (22) is on the axis of the clamping bolt (4).

7. The electric rotary knife switch according to claim 6, characterized in that: The clamping bolt (4) serves as the connecting bolt (3).

8. The electric rotary knife switch according to any one of claims 1 to 7, characterized in that: A limiting groove (11) for limiting the rotation angle of the copper bar group (2) is provided at a position on the insulating plate (1) corresponding to the copper bar group (2).

9. The electric rotary knife switch according to any one of claims 1 to 7, characterized in that: All insulating plates (1) are connected to the driving handle (6) via the same connecting shaft (5).

10. The electric rotary knife switch according to any one of claims 1 to 7, characterized in that: The driving mechanism (7) comprises a driving motor, and the driving motor is connected to the driving handle (6) via a mechanical transmission mechanism.

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