Electric translational knife switch

Abstract

The utility model discloses an electric translational 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 fixedly connected onto the insulating plates, and two ends of each copper bar group are provided with gaps in plug-in connection with the components. And the insulating plate is connected with a driving mechanism for driving the insulating plate to translate. According to the utility model, an operator does not need to stretch a hand into a narrow space to connect, mount or disconnect and dismount the hard copper bar, and the connection and disconnection operation of two parts in the narrow space can be effectively realized.

Description

Technical Field

[0001] The utility model relates to the field of assembly and disassembly of electrical cabinet components, in particular to an electric translation 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 (power outage due to accident), UPS will immediately use the power of the battery inside the machine to continue to supply AC power to the load through inverter conversion, 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 does not require the operator to put his hand into a small space to connect or disconnect the hard copper busbar, and can effectively realize the connection and disconnection operations of two parts in a small space.

[0005] The technical solution adopted by the utility model is as follows: an electric translational knife switch, comprising a plurality of insulating plates, on which a plurality of copper bar groups are fixedly connected, and both ends of the copper bar groups have gaps for plugging with components; the insulating plates are connected to a driving mechanism for driving the insulating plates to translate.

[0006] 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 plate.

[0007] Furthermore, the copper bar group is composed of two single copper bars which are closely attached to each other, and two ends of the single copper bars are bent sections away from the closely attached surfaces, so that the copper bar group is in a double Y shape.

[0008] 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.

[0009] Furthermore, the axes of the clamping bolts are perpendicular to the surface of the single copper bar and are evenly distributed with the geometric center point of the elastic clamping sheet as the distribution center.

[0010] Furthermore, the copper busbar group is fixedly connected to the insulating plate by means of clamping bolts.

[0011] Furthermore, the driving mechanism comprises a linear motor, and an output shaft of the linear motor is fixedly connected to the insulating plate.

[0012] Furthermore, all the insulating plates are connected to the driving handle via a same connecting shaft, and the driving handle is connected to the driving mechanism.

[0013] Furthermore, the insulating plate has a sliding portion which is translationally connected to the electrical cabinet body.

[0014] Further, the driving mechanism includes a rotating motor, the output shaft of which is connected to the driving handle through a worm gear mechanism; or the driving mechanism includes a rotating motor, the output shaft of which is connected to one end of a crank, the other end of the crank is rotatably connected to the driving handle, and the driving handle is rotatably connected to the insulating plate through a connecting shaft; or the driving mechanism is a linear motor, the output shaft of which is rotatably or fixedly connected to one end of the driving handle, and the other end of the driving handle is rotatably or fixedly connected to the insulating plate through a connecting shaft.

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

[0016] The utility model drives the insulating plate to move horizontally through a driving mechanism, and the insulating plate moves horizontally with the two ends of the copper busbar group to cut the copper wires and plug and disconnect them with two components that need to be connected. There is no need for an operator to put his hands into a narrow space to connect or install or disconnect the hard copper busbar, and the connection and disconnection operations of the two components can be effectively completed in a narrow space. 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 It is a structural schematic diagram of the utility model;

[0019] Figure 2 It is a structural schematic diagram of a first implementation method of a copper busbar group;

[0020] Figure 3 It is a structural schematic diagram of a second implementation method of a copper busbar group;

[0021] Figure 4 A schematic diagram of a first structure for connecting a driving mechanism and an insulating plate;

[0022] Figure 5A schematic diagram of a second structure in which the driving mechanism is connected to the insulating plate;

[0023] Figure 6 A schematic diagram of a third structure in which the driving mechanism is connected to the insulating plate;

[0024] Figure 7 A schematic diagram of a fourth structure of connecting the driving mechanism and the insulating plate;

[0025] Markings in the figure: 1-insulating plate; 11-sliding part; 2-copper bar group; 21-single copper bar; 22-elastic clamping plate; 23-gap; 24-clamping bolt; 3-connecting shaft; 4-driving handle; 5-driving mechanism; 51-linear motor; 52-rotating motor; 6-slide rail; 7-crank; 8-worm gear; 9-worm. DETAILED DESCRIPTION

[0026] 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.

[0027] 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.

[0028] Example 1

[0029] like Figure 1-Figure 7 As shown, an electric translational knife switch comprises a plurality of insulating plates 1, wherein the insulating plates 1 may be ceramic plates, wherein a plurality of copper bar groups 2 are rotatably connected to the insulating plates 1, and 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, thereby effectively avoiding the occurrence of a short circuit; a plurality of copper bar groups 2 are fixedly connected to the insulating plates 1, and both ends of the copper bar groups 2 have gaps 23 for plugging with components; the insulating plates 1 are connected to a driving mechanism 5 for driving the insulating plates 1 to translate, wherein the driving mechanism 5 drives the insulating plates 1 to translate relative to the electrical cabinet, and actually translate relative to two components to be connected, so that the connection positions of the two components are respectively and simultaneously inserted into or separated from the gaps 23 at both ends of the copper bar groups 2, without the need for the operator to extend his hand into a narrow space to connect, install, disconnect or disassemble the hard copper bar, and the connection and disconnection operations of the two components can be effectively completed in a narrow space, thereby ensuring the efficiency of disassembly during component replacement and maintenance.

[0030] 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.

[0031] In this embodiment, the connection between the busbar of the electrical cabinet and the UPS is taken as an example for a detailed working description. The busbar is installed on the top of the electrical cabinet and is located above the UPS. The busbar has a lap joint for connecting to the UPS, and the UPS has an outgoing line bar connected to the busbar. The electric horizontal knife switch is installed between the busbar and the UPS, and has three insulating plates 1. Three groups of copper bar groups 2 are arranged on each insulating plate 1, 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 lap joint in the busbar in terms of quantity and spatial position. The electric horizontal knife switch is pre-installed in the electrical cabinet, and the installation position is between the busbar and the space where the UPS needs to be installed. When installing the UPS, first use the drive mechanism 5 to drive the insulating plate 1 to move horizontally, and the insulating plate 1 and the copper bar group 2 are withdrawn from the connection position; then put the UPS into the installation space; then use the drive mechanism 5 to drive the insulating plate 1 to move horizontally, and the insulating plate 1 and the copper bar group 2 enter the connection position, the overlapping part of the busbar is plugged into a gap 23 on the copper bar group 2, and the output line of the UPS is plugged into another gap 23 on the copper bar group 2, so as to achieve the plug-in connection between the busbar and the copper bar group 2, and then complete the connection between the UPS and the busbar. When disassembling the UPS, use the drive mechanism 5 to drive the insulating plate 1 to move horizontally, and the insulating plate 1 and the copper bar group 2 are withdrawn from the connection position, that is, the overlapping part of the busbar and the output line of the UPS are both separated from the gap 23 on the copper bar group 2, so as to achieve the disconnection between the UPS and the busbar, and then the UPS can be taken out from the electrical cabinet.

[0032] Example 2

[0033] Based on Example 1, a specific implementation method that can be implemented is further proposed.

[0034] Regarding the structure of the copper busbar group 2, the present embodiment proposes the following feasible implementation methods.

[0035] The first implementation method, such as Figure 2 As shown, 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 in the embodiment pass through the single copper bar 21-insulating board 1-single copper bar 21 in sequence and are then 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 bar 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.

[0036] The second implementation method, such as Figure 3As shown, the copper bar group 2 is two single copper bars 21 that are tightly attached to each other, and the two ends of the single copper bar 21 are bent sections away from the tightly attached 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 in the embodiment 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 the hinge to connect with the overlapping hole on the component (busbar).

[0037] 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 24, and the clamping bolt 24 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.

[0038] Furthermore, the axis of the clamping bolt 24 is perpendicular to the surface of the single copper bar 21 and is evenly distributed with the geometric center point of the elastic clamping plate 22 as the distribution center, so that the elastic force of the elastic clamping plate 22 is evenly distributed, and thus the elastic force of the elastic clamping plate 22 on the single copper bar 21 is evenly distributed.

[0039] In a feasible implementation manner, the copper bar group 2 is fixedly connected to the insulating plate 1 by means of a clamping bolt 24, which ensures the effects of the above implementation manner while reducing the number of parts used.

[0040] Example 3

[0041] On the basis of implementing any one of implementation modes 1-2, a feasible implementation mode is further proposed.

[0042] Regarding the driving mechanism 5, the present embodiment proposes the following feasible implementation methods.

[0043] The first implementation method, such as Figure 1-Figure 3 , Figure 4 As shown, the driving mechanism 5 includes a linear motor 51, the output shaft of the linear motor 51 is a translational motion (linear motion), and the output shaft of the linear motor 51 is fixedly connected to the insulating plate 1, that is, the output shaft of the linear motor 51 directly moves the insulating plate 1, thereby realizing the copper bar group 2 to exit or enter the connection position.

[0044] A feasible implementation method, based on all the above embodiments and implementation methods, all insulating plates 1 are connected to the driving handle 4 through the same connecting shaft 3, and the driving handle 4 is connected to the driving mechanism 5, so that the movement of all insulating plates 1 is synchronized, thereby making the movement of all copper busbar groups 2 synchronized, and further achieving the purpose of connecting or disconnecting the outgoing line busbars of all copper busbar groups 2 at the same time.

[0045] A feasible implementation manner, the insulating plate 1 has a sliding portion 11, and a slide rail 6 is correspondingly arranged on the cabinet body of the electrical cabinet. The sliding portion 11 is slidably connected to the slide rail 6, which can not only support the insulating plate 1, but also constrain the translational direction of the insulating plate 1, thereby improving the movement stability, thereby improving the stability of the copper busbar group 2 entering or exiting the connection position.

[0046] On the basis that the insulating plate 1 has the sliding portion 11 , regarding the driving mechanism 5 , this embodiment further proposes the following feasible implementation methods.

[0047] The second implementation method, such as Figure 1-Figure 3 , Figure 5 As shown, the driving mechanism 5 includes a rotating motor 52, the output shaft of which is connected to one end of the crank 7, the other end of the crank 7 is rotatably connected to the driving handle 4, and the driving handle 4 is rotatably connected to the insulating plate 1 through the connecting shaft 3; that is, the rotating motor 52 drives the crank 7 to rotate, and after the crank 7 rotates, the other end of the crank 7 has a partial displacement in the horizontal direction, and under the constraint of the sliding connection between the sliding part 11 and the slide rail 6, the partial displacement is transmitted to the insulating plate 1 through the driving handle 4, so that the insulating plate 1 moves horizontally; that is, the copper bar group 2 is withdrawn from or enters the connection position. It should be noted that the two ends of the driving handle 4 are rotatably connected to the insulating plate 1 and the crank 7, respectively, which can effectively avoid the problem of motion interference.

[0048] The third implementation method, such as Figure 1-Figure 3 , Figure 6 As shown, the driving mechanism 5 is a linear motor 51, and the output shaft of the linear motor 51 is fixedly connected to the driving handle 4, and the driving handle 4 is rotatably connected to the insulating plate 1 through the connecting shaft 3; under the constraint of the sliding connection between the sliding part 11 and the slide rail 6, this method transmits the translational movement of the output shaft of the linear motor 51 to the insulating plate 1 through the driving handle 4 and the connecting shaft 3, that is, the copper bar group 2 is withdrawn from or enters the connection position; in this method, the installation direction of the translational movement of the linear motor 51 only needs to ensure that it is parallel to the direction of connecting or disconnecting the copper bar group 2 to the overlapping end of the busbar and the output line bar, and the installation position of the linear motor 51 can only be adjusted on the surface where the driving handle 4 rotates relative to the insulating plate 1.

[0049] The fourth implementation method is as follows: Figure 1-Figure 3 , Figure 7As shown, the driving mechanism 5 is a linear motor 51, and the output shaft of the linear motor 51 is hinged to the driving handle 4, preferably a ball joint connection, and the driving handle 4 is rotatably connected to the insulating plate 1 through the connecting shaft 3; under the constraint of the sliding connection between the sliding part 11 and the slide rail 6, this method transmits the translational movement of the output shaft of the linear motor 51 to the insulating plate 1 through the driving handle 4 and the connecting shaft 3, and the insulating plate 1 translates to realize the copper bar group 2 to exit or enter the connection position; in this method, the installation direction of the translational movement of the linear motor 51 can be in any direction, which is convenient for adjustment according to actual conditions.

[0050] 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 translational knife switch, characterized in that: The invention comprises a plurality of insulating plates (1), wherein a plurality of copper bar groups (2) are fixedly connected to the insulating plates (1), and the two ends of the copper bar groups (2) have gaps (23) for plugging with components; the insulating plates (1) are connected to a driving mechanism (5) for driving the insulating plates (1) to move in translation; the driving mechanism (5) comprises a linear motor (51), and the output shaft of the linear motor (51) is fixedly connected to the insulating plates (1); or the driving mechanism (5) comprises a rotary motor (52), the output shaft of the rotary motor (52) is connected to one end of a crank (7), the other end of the crank (7) is rotationally connected to a driving handle (4), and the driving handle (4) is rotationally connected to the insulating plates (1) via a connecting shaft (3); or the driving mechanism (5) is a linear motor (51), the output shaft of the linear motor (51) is rotationally or fixedly connected to one end of the driving handle (4), and the other end of the driving handle (4) is rotationally or fixedly connected to the insulating plates (1) via a connecting shaft (3).

2. The electric translational knife switch according to claim 1, characterized in that: The copper bar group (2) is composed of two single copper bar groups (21), and the single copper bar (21) in each copper bar group (2) is arranged in a mirror image with respect to the insulating plate (1).

3. The electric translational knife switch according to claim 1, characterized in that: The copper bar group (2) is composed of two single copper bars (21) that are closely attached to each other, and both ends of the single copper bars (21) are bent sections away from the closely attached surfaces, so that the copper bar group (2) is in a double Y shape.

4. The electric translational knife switch according to claim 2 or 3, characterized in that: The copper bar group (2) further comprises an elastic pressing sheet (22) arranged on the outside of the single copper bar (21), the elastic pressing sheet (22) being pressed against the outside of the single copper bar (21) by a pressing bolt (24), the pressing bolt (24) penetrating the entire copper bar group (2).

5. The electric translational knife switch according to claim 4, characterized in that: The axes of the clamping bolts (24) are perpendicular to the surface of the single copper bar (21) and are evenly distributed with the geometric center point of the elastic clamping sheet (22) as the distribution center.

6. The electric translational knife switch according to claim 5, characterized in that: The copper busbar group (2) is fixedly connected to the insulating plate (1) via a clamping bolt (24).

7. The electric translational knife switch according to claim 1, characterized in that: All insulating plates (1) are connected to a driving handle (4) via a same connecting shaft (3), and the driving handle (4) is connected to a driving mechanism (5).

8. The electric translational knife switch according to claim 7, characterized in that: The insulating plate (1) has a sliding portion (11) which is translationally connected to the electrical cabinet body.

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