Power supply control box

Abstract

The utility model discloses a power supply control box, which is characterized in that a main power supply change-over switch, a start-stop switch assembly, a contactor, an input wiring terminal group, an output wiring terminal group and other devices are arranged on a shell in a centralized manner, so that part of long-distance wiring can be reduced, and the occupied space can be effectively reduced in a centralized arrangement manner; besides, the main power supply change-over switch and the start-stop switch assembly are arranged on the front panel so that effective operation of operators can be facilitated, and the input wiring terminal group and the output wiring terminal group are arranged on the rear panel so that wiring can be facilitated and line arrangement can be better facilitated. According to the preassembled power supply control box provided by the embodiment of the invention, the preassembling work is completed in advance, so that the installation, detection and maintenance efficiency can be improved to a great extent, the layout unification in a cabinet is realized, and the overall safety is further improved.

Description

Technical Field

[0001] The present application relates to the field of power supply devices, and in particular to a power supply control box. Background Art

[0002] In traditional cabinets, components related to the power circuit are directly fixed in different parts of the cabinet. The power cables need to be cumbersomely routed inside the cabinet to form the power circuit. This is not only difficult to install but also poses a safety hazard. At the same time, the separate installation of each component also takes up a lot of space inside the cabinet and brings troubles to the inspection and maintenance of the components. Summary of the Invention

[0003] This application aims to propose a power control box that can reduce the difficulty of installing, inspecting and maintaining the power circuit.

[0004] The present invention provides a power supply control box, comprising:

[0005] The power supply circuit includes a main power transfer switch, a start-stop switch assembly, a contactor, and an input terminal group and an output terminal group. The input terminal group is used to connect to an external power source. The main power transfer switch is connected between the input terminal group and one end of the main contact of the contactor. The output terminal group is connected to the other end of the main contact of the contactor. The start-stop switch assembly is used to connect and disconnect the control coil of the contactor.

[0006] The main power conversion switch and the start-stop switch assembly are arranged on the front panel of the shell, the contactor is arranged in the shell, and the input terminal group and the output terminal group are both arranged on the rear panel of the shell.

[0007] The power control box of the embodiment of the present application can reduce some long-distance wiring by centrally arranging the main power conversion switch, start-stop switch assembly, contactor, input terminal group, output terminal group and other components on the housing, and the centralized arrangement can effectively reduce the space occupied; in addition, arranging the main power conversion switch and start-stop switch assembly on the front panel can facilitate the operator to operate effectively, and arranging the input terminal group and output terminal group on the rear panel can facilitate wiring while also better facilitating the regularization of the line. The embodiment of the present application provides a pre-installed power control box. By completing the pre-installation work in advance, the efficiency of installation, testing, and maintenance can be greatly improved, the layout in the cabinet is unified, and the overall safety is improved.

[0008] Other features and advantages of the present application will be set forth in the following description, and in part will be apparent from the description, or may be learned by practicing the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0010] Figure 1 This is a schematic diagram of the axial structure of an embodiment of the power control box provided by the present application from one perspective;

[0011] Figure 2 This is a schematic diagram of the axial structure of the embodiment of the power control box provided by the present application from another perspective (the cover plate is not shown);

[0012] Figure 3 This is a circuit diagram of an embodiment of the power control box provided in this application.

[0013] Reference numerals:

[0014] Main power transfer switch 110, start-stop switch assembly 120, contactor 130, input terminal block 140, output terminal block 150, leakage protection switch 160, emergency stop switch 170, operation indicator light 181, stop indicator light 182,

[0015] Front sub-panel 211 , rear sub-panel 221 , left side panel 230 , right side panel 240 , bottom panel 250 , cover panel 260 , handle 270 , and slide rail 280 . DETAILED DESCRIPTION

[0016] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0017] In the description of this application, if there is a description of first, second, etc., it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0018] In the description of this application, it should be understood that descriptions involving orientation, such as the orientation or positional relationship indicated by up, down, etc., are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, rather than indicating or implying 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 this application.

[0019] In the description of this application, it should be noted that, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technical personnel in the relevant technical field can reasonably determine the specific meaning of the above terms in this application based on the specific content of the technical solution.

[0020] The technical solution of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described below are only part of the embodiments of the present application, not all of the embodiments.

[0021] See also Figure 1 、 Figure 2 As shown, Figure 1 and Figure 2 1 is a schematic diagram of the axial structure of an embodiment of the power control box provided by the present application from different perspectives, and the power control box includes:

[0022] The power supply circuit includes a main power transfer switch 110, a start-stop switch assembly 120, a contactor 130, an input terminal group 140, and an output terminal group 150. The input terminal group 140 is used to connect to an external power supply. The main power transfer switch 110 is connected between the input terminal group 140 and the main contacts of the contactor 130 (such as Figure 3 The output terminal group 150 is connected to the other end of the main contact of the contactor 130; the start-stop switch assembly 120 is used to connect the control coil of the contactor 130 and disconnect the control coil of the contactor 130 (as shown in FIG. Figure 3 KMO-A shown);

[0023] The housing, the main power transfer switch 110, and the start-stop switch assembly 120 are arranged on the front panel of the housing, the contactor 130 is arranged in the housing, and the input terminal group 140 and the output terminal group 150 are both arranged on the rear panel of the housing.

[0024] In the embodiment of the present application, by centrally arranging the main power transfer switch 110, the start-stop switch assembly 120, the contactor 130, and the input terminal group 140, the output terminal group 150 and other components on the housing, some long-distance wiring can be reduced, and the centralized arrangement can effectively reduce the space occupied; in addition, arranging the main power transfer switch 110 and the start-stop switch assembly 120 on the front panel can facilitate effective operation by the operator, and arranging the input terminal group 140 and the output terminal group 150 on the rear panel can facilitate wiring while also better arranging the lines. The embodiment of the present application provides a pre-installed power control box. By completing the pre-installation work in advance, the efficiency of installation, testing, and maintenance can be greatly improved, the layout in the cabinet is unified, and the overall safety is improved.

[0025] The start-stop switch assembly 120 includes a start switch (such as Figure 3 SB1) and stop switch (as Figure 3 As shown in SB2), the start switch is used to connect the control coil of the contactor 130, and the stop switch is used to disconnect the control coil of the contactor 130.

[0026] The start switch, stop switch and control coil of contactor 130 are connected in series and connected to the three-phase power line of external power supply (such as Figure 3 One phase of A, B, C) and the neutral line (as shown Figure 3 N), the start switch is set to normally open, the stop switch is set to normally closed, and the first auxiliary contact of the contactor 130 (as shown in FIG. Figure 3 The KMO-B shown is connected in parallel with the start switch so that it can be self-locking after the start switch is pressed.

[0027] The housing includes a front panel, a rear panel, a left panel 230, a right panel 240, a bottom panel 250, and a cover panel 260. The main power transfer switch 110 and the start / stop switch assembly 120 are located on the front panel, while the input terminal block 140 and the output terminal block 150 are both located on the rear panel. During installation, the housing can be installed by first connecting the input and output terminal blocks 140, 150 to external devices, and then pushing the housing into the cabinet. For inspection or maintenance, the housing can be removed from the cabinet, and the input and output terminal blocks 140, 150, and detached from external devices, allowing for inspection and maintenance.

[0028] In some embodiments, reference Figure 1 、 Figure 3 The front panel includes a plurality of independently detachable front sub-panels 211 , and the main power transfer switch 110 and the start-stop switch assembly 120 are arranged on different front sub-panels 211 .

[0029] Each of the front sub-panels 211 is provided with a through hole, and the front end of the housing is provided with screw holes corresponding to the through holes. The front sub-panels 211 can be installed and removed by using the through holes and the screw holes.

[0030] In this embodiment, by arranging the main power transfer switch 110 and the start-stop switch assembly 120 on the independently detachable front sub-panel 211, these components can be individually disassembled and replaced, making maintenance more convenient.

[0031] In some embodiments, reference Figure 1 、 Figure 3The power supply circuit also includes a leakage protection switch 160, which is connected between the other end of the main contact of the contactor 130 and the output terminal group 150; the front panel includes multiple independently detachable front sub-panels 211, and the leakage protection switch 160, the main power transfer switch 110, and the start-stop switch assembly 120 are arranged on different front sub-panels 211.

[0032] The leakage protection switch 160 can realize leakage protection.

[0033] Each of the front sub-panels 211 is provided with a through hole, and the front end of the housing is provided with screw holes corresponding to the through holes. The front sub-panels 211 can be installed and removed by using the through holes and the screw holes.

[0034] In this embodiment, by arranging the leakage protection switch 160, the main power transfer switch 110, and the start-stop switch assembly 120 on the independently detachable front sub-panel 211, these components can be individually disassembled and replaced, making maintenance easier.

[0035] In some embodiments, reference Figure 1 、 Figure 3 The power circuit also includes an emergency stop switch 170, which is used to manually cut off the power supply to the control coil of the contactor 130; the front panel includes multiple independently detachable front sub-panels 211, and the emergency stop switch 170, the main power transfer switch 110, and the start-stop switch assembly 120 are arranged on different front sub-panels 211.

[0036] The emergency stop switch 170 is connected in series with the control coil of the contactor 130 , so that after pressing the emergency stop switch 170 , the power supply to the control coil is cut off, thereby completing the disconnection of the main circuit.

[0037] Each of the front sub-panels 211 is provided with a through hole, and the front end of the housing is provided with screw holes corresponding to the through holes. The front sub-panels 211 can be installed and removed by using the through holes and the screw holes.

[0038] In this embodiment, by arranging the emergency stop switch 170, the main power transfer switch 110, and the start-stop switch assembly 120 on the independently detachable front sub-panel 211, these components can be individually disassembled and replaced, making maintenance easier.

[0039] In some embodiments, reference Figure 2 、 Figure 3 The rear panel includes a plurality of independently detachable rear sub-panels 221 , and the input terminal group 140 and the output terminal group 150 are arranged on different rear sub-panels 221 .

[0040] Each rear sub-panel 221 is provided with a through hole, and the rear end of the shell is provided with screw holes corresponding to the through holes. The rear sub-panel 221 can be installed and removed by using the through holes and the screw holes.

[0041] In this embodiment, by arranging the input terminal block group 140 and the output terminal block group 150 on the independently detachable rear sub-panel 221 , these components can be individually disassembled and replaced, making maintenance more convenient.

[0042] In some embodiments, reference Figure 2 、 Figure 3 The output terminal group 150 includes at least one first AC output terminal and / or at least one second AC output terminal, and the first AC output terminal and the second AC output terminal are used to output different AC voltages; the rear panel includes multiple independently detachable rear sub-panels 221, and the input terminal group 140, each first AC output terminal, and each second AC output terminal are set on different rear sub-panels 221.

[0043] The first AC output terminal can be understood as a terminal for outputting 220V voltage, which can be obtained by connecting any one phase and the neutral line of the three-phase power supply connected to the input terminal group 140. The number of the first AC output terminals can be flexibly configured according to actual needs.

[0044] The second AC output terminal can be understood as a terminal for outputting a 380V voltage, which can be obtained by three-phase lines of a three-phase power source connected to the input terminal group 140. The number of the second AC output terminals can be flexibly configured according to actual needs.

[0045] In this embodiment, by arranging the input terminal block group 140, each first AC output terminal, and each second AC output terminal on an independently detachable rear sub-panel 221, these components can be individually disassembled and replaced, making maintenance easier.

[0046] In some embodiments, both the input terminal set 140 and the output terminal set 150 use aviation plugs.

[0047] In this embodiment, both the input terminal block group 140 and the output terminal block group 150 use aviation plugs, which can further improve the centralization level of the power control box of the embodiment of the present application and further reduce the construction workload during installation and maintenance.

[0048] In some embodiments, reference Figure 1 、 Figure 2 A handle 270 is provided on the front end of the shell, and the handle 270 is provided perpendicular to the front panel.

[0049] The handles 270 are provided on both sides of the front end of the housing, which can facilitate the user to pull and push the power control box.

[0050] In some embodiments, reference Figure 1 、 Figure 2 Slide rails 280 are provided on the left side plate 230 and the right side plate 240 of the shell, and the slide rails 280 are used to guide the shell into and out of the cabinet.

[0051] In this embodiment, a slide rail 280 is used to quickly push the shell into and out of the cabinet, further reducing the difficulty of installation, inspection and maintenance.

[0052] In some embodiments, reference Figure 3 The power circuit or the start-stop switch assembly 120 is also provided with an indicator light assembly, which is used to indicate the working status of the power circuit.

[0053] The indicator light assembly can be provided separately or directly in the start-stop switch assembly 120. Figure 1 The solution adopted is set in the start-stop switch component 120. The specific choice can be made according to actual needs.

[0054] The indicator light assembly includes a running indicator light 181 and a stop indicator light 182. Figure 3 As shown, the running indicator light 181 can be directly connected in series with the start switch, and the sub-circuit after the series connection is connected between one phase and the neutral line of the three-phase power line. The stop indicator light 182 can be connected in series with the second auxiliary contact of the contactor 130, and the sub-circuit after the series connection is connected between one phase and the neutral line of the three-phase power line.

[0055] In this embodiment, the indicator light component is entered to indicate the operating status of the power control cabinet so that the user can better understand the operating status of the power control cabinet.

[0056] It should be understood that the present application is not limited to the specific configurations and processes described above and illustrated in the figures. For the sake of brevity, a detailed description of known methods is omitted here. In the above embodiments, several specific steps are described and illustrated as examples. However, the method process of the present application is not limited to the specific steps described and illustrated. Those skilled in the art can make various changes, modifications, and additions, or change the order of the steps after understanding the spirit of the present application.

[0057] The above is only a specific implementation method of the present application. Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the systems, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. It should be understood that the scope of protection of the present application is not limited to this. Any technician familiar with this technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in this application, and these modifications or replacements should be included in the scope of protection of this application.

Claims

1. A power control box, characterized in that: include: The power supply circuit includes a main power transfer switch, a start-stop switch assembly, a contactor, and an input terminal group and an output terminal group. The input terminal group is used to connect to an external power source. The main power transfer switch is connected between the input terminal group and one end of the main contact of the contactor. The output terminal group is connected to the other end of the main contact of the contactor. The start-stop switch assembly is used to connect and disconnect the control coil of the contactor. The main power conversion switch and the start-stop switch assembly are arranged on the front panel of the shell, the contactor is arranged in the shell, and the input terminal group and the output terminal group are both arranged on the rear panel of the shell.

2. The power control box according to claim 1, characterized in that: The front panel includes a plurality of independently detachable front sub-panels, and the main power conversion switch and the start-stop switch assembly are arranged on different front sub-panels.

3. The power control box according to claim 1, characterized in that: The power supply circuit also includes a leakage protection switch, which is connected between the other end of the main contact of the contactor and the output terminal group; the front panel includes multiple independently detachable front sub-panels, and the leakage protection switch, the main power transfer switch, and the start-stop switch assembly are arranged on different front sub-panels.

4. The power control box according to claim 1, characterized in that: The power supply circuit also includes an emergency stop switch, which is used to manually cut off the power supply to the control coil of the contactor; the front panel includes multiple independently detachable front sub-panels, and the emergency stop switch, the main power transfer switch, and the start-stop switch assembly are arranged on different front sub-panels.

5. The power control box according to claim 1, characterized in that: The rear panel includes a plurality of independently detachable rear sub-panels, and the input terminal group and the output terminal group are arranged on different rear sub-panels.

6. The power control box according to claim 1, characterized in that: The output terminal group includes at least one first AC output terminal and / or at least one second AC output terminal, and the first AC output terminal and the second AC output terminal are used to output different AC voltages; the rear panel includes multiple independently detachable rear sub-panels, and the input terminal group, each of the first AC output terminals, and each of the second AC output terminals are arranged on different rear sub-panels.

7. The power control box according to claim 1, characterized in that: The input terminal block and the output terminal block both use aviation plugs.

8. The power control box according to claim 1, characterized in that: A handle is provided on the front end of the shell, and the handle is arranged perpendicular to the front panel.

9. The power control box according to claim 1, characterized in that: Slide rails are provided on the left and right sides of the shell, and the slide rails are used to guide the shell to enter and exit the cabinet.

10. The power control box according to claim 1, characterized in that: The power supply circuit or the start-stop switch assembly is further provided with an indicator light assembly, and the indicator light assembly is used to indicate the working status of the power supply circuit.

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