AC / DC dual power supply box

Abstract

The utility model discloses a kind of alternating current and direct current dual power supply box, comprising: cabinet, the cabinet outside is provided with cabinet door;First mounting frame, the first mounting frame is connected in the bottom surface of the cabinet interior;Second mounting frame, the second mounting frame is connected in the top surface of the cabinet interior, and the second mounting frame and the first mounting frame are all set with limit sliding slot on it. Through first radiating assembly, the bottom of the cabinet interior can be radiated, through second radiating assembly, the top of the cabinet interior can be radiated, through the bottom and top radiate simultaneously, through radiating fan, air circulation in the cabinet is accelerated, the heat in the cabinet is discharged in time, avoid the damage of component in the cabinet, through handle, installation plate is conveniently extracted from limit sliding slot, first radiating assembly and second radiating assembly are conveniently removed, radiating fan is conveniently overhauled and replaced, and overhauling efficiency is accelerated.

Description

TECHNICAL FIELD

[0001] The utility model relates to power supply device technical field especially relates to a AC-DC double power supply box. BACKGROUND

[0002] The local control unit LCU of the hydroelectric plant monitoring system is a control screen group located near the water turbine generator layer, switch station and other equipment of the hydroelectric station, and is a lower layer control part of the computer monitoring system of the hydroelectric station. Its main function is to monitor, control, adjust and alarm and shut down in case of failure in real time for the running conditions of the controlled objects (generator set, public system, switch station and other electrical primary equipment and mechanical equipment). As the only power supply device of the LCU, the AC-DC double power supply box must operate reliably and safely.

[0003] The utility model discloses a power supply box discloses a power supply box, through adopting commercial power input, through multiple voltage and AC-DC conversion in the power supply box, realize the integration of multiple voltage and AC-DC power supply, convenient to use, save space, because the power supply box generates certain heat when working, in high temperature weather, using the power supply box can make the temperature in the box exceed the normal value, can cause the damage of the parts in the box, although part of the power supply box is provided with a cooling fan in the inside, but because the machine case has many parts and lines, it is very troublesome during maintenance, which affects the maintenance efficiency. UTILITY MODEL CONTENTS

[0004] The utility model discloses an AC-DC double power supply box which solves the problems in the prior art, comprising: a machine case, a box door arranged on the outer side of the machine case, a first mounting frame connected to the inner bottom surface of the machine case, a second mounting frame connected to the inner top surface of the machine case, a limiting sliding groove arranged on the first mounting frame and the second mounting frame, a first heat dissipation assembly connected to the first mounting frame through a limiting sliding plate, a second heat dissipation assembly connected to the second mounting frame through a limiting sliding plate, the first heat dissipation assembly comprising a heat dissipation fan, the heat dissipation fan being detachably connected to a mounting plate through screws, the mounting plate being connected to the limiting sliding plate and the limiting sliding groove, and a handle connected to the outer side of the mounting plate.

[0005] As a further description of the above technical solution, the machine case is provided with a sound absorption assembly, the machine case is provided with a control main body, the outer side of the machine case is provided with a power supply plugboard and a heat dissipation hole, and the outer side of the box door is provided with a control panel.

[0006] As a further description of the above technical solution, the sound absorption assembly comprises a sound insulation board, one side of the sound insulation board is connected to the machine case, and the other side of the sound insulation board is sequentially provided with a vacuum glass plate, a sound insulation cotton layer and a sound insulation felt.

[0007] As a further description of the above technical solution: the control body is provided with a first switching power supply and a second switching power supply.

[0008] As a further description of the above technical solution: the control body is provided with a first relay, a second relay and a third relay.

[0009] As a further description of the above technical solution: the first mounting frame and the second mounting frame are structured as a box body, the first mounting frame is opened upward, and the second mounting frame is opened downward.

[0010] As a further description of the above technical solution: the box body is provided with a temperature sensor connected with the control body.

[0011] As a further description of the above technical solution: the first heat dissipation assembly and the second heat dissipation assembly are structured as a box body.

[0012] As a further description of the above technical solution: the mounting plate is provided with at least two heat dissipation fans.

[0013] As a further description of the above technical solution: the box body is provided with universal wheels below.

[0014] The above technical solution has the following advantages or beneficial effects:

[0015] The first heat dissipation assembly can dissipate heat from the bottom of the box body, the second heat dissipation assembly can dissipate heat from the top of the box body, the air circulation in the box body is accelerated by the heat dissipation fans, the heat dissipation efficiency is improved, the heat in the box body is discharged in time, the damage of the components in the box body is avoided, the mounting plate can be easily pulled out from the limiting sliding groove through the handle, the first heat dissipation assembly and the second heat dissipation assembly can be easily taken down, the heat dissipation fans can be easily repaired and replaced, and the repair efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of the power supply box in an embodiment of the utility model;

[0017] Figure 2 It is a sectional view of the power supply box in an embodiment of the utility model;

[0018] Figure 3 It is a structural schematic view of the first heat dissipation assembly in the power supply box; Figure 2

[0019] It is a structural schematic view of the second heat dissipation assembly in the power supply box; Figure 4 Figure 2 It is a structural schematic view of the sound absorption assembly in the power supply box;

[0020] ​Figure 5 For Figure 2 Circuit diagram for controlling the main body in the power supply box.

[0021] Legend:

[0022] 1, case; 2, box door; 3, first mounting frame; 4, second mounting frame; 5, limiting sliding groove; 6, first heat dissipation assembly; 7, limiting sliding plate; 8, second heat dissipation assembly; 9, sound absorption assembly; 10, control body; 11, power supply board; 12, heat dissipation hole; 13, control panel; 14, first switching power supply; 15, second switching power supply; 16, first relay; 17, second relay; 18, third relay; 19, temperature sensor; 20, universal wheel; 61, heat dissipation fan; 62, mounting plate; 63, handle; 91, sound insulation board; 92, vacuum glass plate; 93, sound insulation cotton layer; 94, sound insulation felt. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0024] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "vertical", "upper", "lower", "horizontal" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0025] In the description of the present application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "provided", "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0026] Please refer to Figures 1-4The utility model provides a technical scheme: the utility model discloses a kind of AC-DC dual power supply box, comprising: cabinet 1, cabinet 1 outside is provided with cabinet door 2;First mounting frame 3, first mounting frame 3 is connected in the bottom surface of cabinet 1 interior;Second mounting frame 4, second mounting frame 4 is connected in the top surface of cabinet 1 interior, second mounting frame 4 and first mounting frame 3 are all set with limiting sliding slot 5;First radiating assembly 6, first radiating assembly 6 is slidably connected with first mounting frame 3 by limiting sliding plate 7;Second radiating assembly 8, second radiating assembly 8 is slidably connected with second mounting frame 4 by limiting sliding plate 7;First radiating assembly 6 includes radiating fan 61, and radiating fan 61 is detachably connected on mounting plate 62 by screw, and mounting plate 62 is connected with limiting sliding plate 7 and limiting sliding slot 5, and mounting plate 62 outside is connected with handle 63.

[0027] In the embodiment, the hydroelectric power plant monitoring system local control unit LCU is powered by the cabinet 1, the first radiating assembly 6 can radiate the bottom of the cabinet 1, the second radiating assembly 8 can radiate the top of the cabinet 1, the bottom and the top are radiated at the same time, the air circulation in the cabinet 1 is accelerated by the radiating fan 61, the radiating efficiency is accelerated, the heat in the cabinet 1 is discharged in time, the damage of the components in the cabinet 1 is avoided, the mounting plate 62 is conveniently pulled out from the limiting sliding slot 5 by the handle 63, the first radiating assembly 6 and the second radiating assembly 8 are conveniently taken off, the radiating fan 61 is conveniently overhauled and replaced, and the overhauling efficiency is accelerated.

[0028] As shown in Figure 1 and Figure 4 , specifically, the cabinet 1 is provided with a sound-absorbing assembly 9, the cabinet 1 is provided with a control body 10, the cabinet 1 is provided with a power supply plugboard 11 and a heat dissipation hole 12 outside, the cabinet door 2 is provided with a control panel 13 outside, the sound-absorbing assembly 9 includes a sound insulation board 91, one side of the sound insulation board 91 is connected with the cabinet 1, the other side of the sound insulation board 91 is sequentially provided with a vacuum glass plate 92, a sound insulation cotton layer 93 and a sound insulation felt 94;The cabinet 1 is attached with the sound insulation board 91, the vacuum glass plate 92, the sound insulation cotton layer 93 and the sound insulation felt 94, the noise generated by the components in the cabinet 1 will first pass through the sound insulation felt 94 for preliminary sound insulation, then the noise passing through the sound insulation felt 94 will enter the sound insulation cotton layer 93 and the vacuum glass plate 92 for further absorption, and finally the remaining noise will be isolated through the sound insulation board 91, the sound insulation felt 94, the sound insulation cotton layer 93, the vacuum glass plate 92 and the sound insulation board 91 are used for layer-by-layer reduction, so that the noise generated by the components in the cabinet 1 is not easy to be transmitted, and the noise reduction effect is achieved.

[0029] As shown in Figure 2 and Figure 5As shown, specifically, the control body 10 side is installed with the first switching power supply 14 and the second switching power supply 15; the control body 10 is installed with DC220V / DC24V first switching power supply PS1 and DC220V / DC24V second switching power supply PS2, a total of 2 pieces, the first switching power supply PS1 is used as the DC24V power supply for the PLC power module in the LCU screen, and the second switching power supply 15 is used as the DC24V power supply for the PLC input module and the output module, solving the power supply problem of several DC24V loads in the new power supply box.

[0030] As shown in Figure 2 and Figure 5 , specifically, the control body 10 is installed with the first relay 16, the second relay 17 and the third relay 18; the control body 10 is installed with three small intermediate relays, which are the first relay KZ1, the second relay XJ1 and the third relay XJ2, which are defined in turn: KZ1 is the "debug signal" expansion of the electric box output switch quantity; XJ1 is the "online signal" expansion of the electric box output switch quantity; XJ2 is the PLC output "sequence control enable" relay, which is used to disconnect or connect the DC24V power supply of the intermediate relay coil in the PLC output loop. The first relay 16, the second relay 17 and the third relay 18 are installed to solve the PLC control logic problem.

[0031] As shown in Figure 1 and Figure 2 , specifically, the first mounting frame 3 and the second mounting frame 4 are box structures, the first mounting frame 3 is opened upward, and the second mounting frame 4 is opened downward; through the upward opening of the first mounting frame 3 and the downward opening of the second mounting frame 4, the first heat dissipation assembly 6 and the first heat dissipation assembly 8 are relatively blown to dissipate heat, and the heat dissipation efficiency is accelerated.

[0032] As shown in Figure 1 and Figure 2 , specifically, the case 1 is provided with a temperature sensor 19, and the temperature sensor 19 is connected with the control body 10; the temperature sensor 19 can monitor the temperature in the case 1, when the temperature reaches the set threshold value, the control body 10 controls the first heat dissipation assembly 6 and the first heat dissipation assembly 8 to work, accelerates the air circulation in the case 1, realizes the automatic heat dissipation of the electric box, timely discharges the heat in the case 1, avoids the damage of the components in the case 1, is beneficial to the guarantee of power supply quality and prolongs the service life of the components in the electric box.

[0033] As shown in Figure 1 and Figure 2 , specifically, the first heat dissipation assembly 6 and the second heat dissipation assembly 8 are box structures, and at least two heat dissipation fans 61 are installed on the mounting plate 62; through the installation of at least two heat dissipation fans 61 on the mounting plate 62, the heat dissipation effect can be enhanced.

[0034] As Figure 1 and Figure 2 Specifically, as shown in the figure, the chassis 1 is provided with universal wheels 20 below; the device is moved conveniently through the universal wheels 20, and the position of the power supply box is adjusted conveniently, and the universal wheels 20 can adopt universal wheels with brake pads.

[0035] Working principle: the bottom inside the chassis 1 is radiated through the first radiating assembly 6, the top inside the chassis 1 is radiated through the second radiating assembly 8, the air circulation in the chassis 1 is accelerated through the radiating fan 61, the radiating efficiency is accelerated, the heat in the chassis 1 is discharged in time, the damage of the components in the chassis 1 is avoided, the mounting plate 62 is extracted from the limiting sliding groove 5 conveniently through the handle 63, the first radiating assembly 6 and the second radiating assembly 8 are taken down conveniently, the maintenance and replacement of the radiating fan 61 are facilitated, and the maintenance efficiency is accelerated.

[0036] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0037] The above disclosed preferred embodiments of the utility model are only used for helping to explain the utility model. The preferred embodiments do not describe all the details exhaustively, and do not limit the utility model to only the specific implementation manners described. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments, in order to better explain the principle and practical application of the utility model, so that the person skilled in the art can understand and utilize the utility model well. The utility model is limited by the claims and the whole scope and equivalents thereof.

Claims

1. An AC / DC dual power supply box, characterized by comprising: Include: The cabinet (1), the cabinet (1) outside is provided with a cabinet door (2); The first installation frame (3) is connected to the inside bottom of the cabinet (1); The second installation frame (4) is connected to the inside top of the cabinet (1), and the second installation frame (4) and the first installation frame (3) are provided with a limiting sliding groove (5); The first heat dissipation assembly (6) is connected with the first installation frame (3) through the limiting sliding plate (7); The second heat dissipation assembly (8) is connected with the second installation frame (4) through the limiting sliding plate (7); The first heat dissipation assembly (6) includes a heat dissipation fan (61), which is detachably connected to the mounting plate (62) by screws, and the mounting plate (62) is connected with the limiting sliding plate (7) and the limiting sliding groove (5), and the mounting plate (62) is connected with a handle (63) outside.

2. The AC / DC dual power supply box according to claim 1, characterized in that: The cabinet (1) is provided with a sound absorbing assembly (9) inside, a control body (10) is arranged inside the cabinet (1), a power supply panel (11) and a heat dissipation hole (12) are arranged outside the cabinet (1), and a control panel (13) is arranged outside the cabinet door (2).

3. The AC / DC dual power supply box according to claim 2, characterized in that: The sound absorbing assembly (9) includes a sound insulation board (91), which is connected with the cabinet (1) on one side, and a vacuum glass plate (92), a sound insulation cotton layer (93) and a sound insulation felt (94) are sequentially arranged on the other side of the sound insulation board (91).

4. The AC / DC dual power supply box according to claim 2, characterized in that: The control body (10) is provided with a first switch power supply (14) and a second switch power supply (15) on one side.

5. The AC / DC dual power supply box according to claim 2, characterized in that: The control body (10) is provided with a first relay (16), a second relay (17) and a third relay (18).

6. The AC / DC dual power supply box according to claim 1, characterized in that: The first installation frame (3) and the second installation frame (4) are structured as a box body, the first installation frame (3) is opened upward, and the second installation frame (4) is opened downward.

7. The AC / DC dual power supply box according to claim 1, characterized in that: The cabinet (1) is provided with a temperature sensor (19) inside, and the temperature sensor (19) is connected with the control body (10).

8. The AC / DC dual power supply box according to claim 1, characterized in that: The first heat dissipation assembly (6) and the second heat dissipation assembly (8) are structured as a box body.

9. The AC / DC dual power supply box according to claim 1, characterized in that: At least two heat dissipation fans (61) are installed on the mounting plate (62).

10. The AC / DC dual power supply box according to claim 1, characterized in that: The cabinet (1) is provided with universal wheels (20) below.

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