Upper rack power supply monitoring control box

Abstract

The utility model provides a racking power supply monitoring control box, which relates to the technical field of power supply monitoring control, and is characterized in that a plurality of guide rail fuses are arranged on the inner side wall of a standard racking case, and a plurality of direct-current circuit breakers and a plurality of double-digital display meter heads are arranged on the outer wall of the standard racking case; the direct-current power supply is installed at the bottom of the standard upper rack case, the direct-current power supply is respectively connected with the direct-current circuit breakers, each direct-current circuit breaker is correspondingly connected with one guide rail fuse, each guide rail fuse is correspondingly connected with one double-digital display meter head to form a plurality of independent monitoring loops, and each monitoring loop is correspondingly connected with one tested product. The beneficial effects of the utility model are that one path of power supply is expanded into a plurality of monitoring loop power supply outputs, the flexibility of power supply model selection is greatly increased, the resource utilization rate of the power supply is increased, the use cost is reduced, a standard racking case suitable for a 19-inch standard cabinet is adopted, and only one power supply with the height of 1U or 2U is adopted in the case, so that the cost is reduced. And the space utilization rate in the standard cabinet can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of power supply monitoring and control, in particular to a rack-mounted power supply monitoring and control box. Background Art

[0002] At present, the ground test environment usually adopts the form of a 19-inch standard cabinet. In a conventional test environment, usually a single power supply supplies power to a single product under test; due to the particularity of the voltage value of the product under test, when selecting a power supply, it is usually impossible to select a power supply according to the same power consumption as the product under test. The power consumption of the actually selected power supply needs to be higher than the actual power consumption of the product under test, so there will be a waste of power supply resources. Content of the Utility Model

[0003] In view of the problems existing in the prior art, the utility model provides a rack-mounted power supply monitoring and control box, including:

[0004] A standard rack-mounted chassis, on the inner side wall of which there are a plurality of rail fuses, and on the outer wall of which there are a plurality of DC circuit breakers and a plurality of dual digital display meters;

[0005] A DC power supply, installed at the bottom inside the standard rack-mounted chassis, the DC power supply is respectively connected to each of the DC circuit breakers, each DC circuit breaker is correspondingly connected to a rail fuse, and each rail fuse is correspondingly connected to a dual digital display meter to form a plurality of independent monitoring circuits, and each monitoring circuit is correspondingly connected to a product under test.

[0006] Preferably, a plurality of programmable high-current relay modules are further provided on the bottom plate of the standard rack-mounted chassis, and a programmable high-current relay module is further connected between each DC circuit breaker and the corresponding rail fuse.

[0007] Preferably, a plurality of programmable high-current relay modules are further provided on the bottom plate of the standard rack-mounted chassis, and a programmable voltage and current acquisition module is further connected after each dual digital display meter.

[0008] Preferably, the standard rack-mounted chassis includes:

[0009] A bottom plate, on the left and right sides of which side panels are respectively installed, on the front side of which a front panel is installed, and on the rear side of which an insurance mounting plate is installed;

[0010] A cover plate, covering the top of the box body surrounded by the bottom plate, the side panels, the front panel and the insurance mounting plate;

[0011] Each of the guide rail fuses is installed on the fuse installation plate, each of the DC circuit breakers and each of the dual digital display meters are installed on the front panel, and the DC power supply is installed on the bottom plate.

[0012] Preferably, the front panel includes a digital display head mounting plate and open mounting plates on both sides of the digital display head mounting plate;

[0013] Each of the dual digital display meters is installed on the digital display meter installation plate, and each of the DC circuit breakers is installed on the circuit breaker installation plate.

[0014] Preferably, the fuse mounting plate is provided with a grounding column.

[0015] Preferably, a DC circuit breaker mounting rail is provided on one side of the bottom plate close to the front panel, and each of the DC circuit breakers is fixed on the DC circuit breaker mounting rail.

[0016] Preferably, the power input and output interface of the DC power supply is an aviation plug interface, which is arranged on the rear side panel.

[0017] Preferably, a front side ear is provided on a side of the side panel close to the front panel, and a handle is installed on the front side ear.

[0018] Preferably, a fastener is provided at the connection between the cover plate and the side panel, and the cover plate and the side panel are fixedly connected by the fastener.

[0019] The above technical solution has the following advantages or beneficial effects:

[0020] 1) It can support the expansion of one power supply into multiple monitoring circuit power supply outputs, greatly increasing the flexibility of power supply selection, increasing the resource utilization rate of power supply, and reducing the cost of power supply use.

[0021] 2) Use a standard rack-mount chassis suitable for a 19-inch standard cabinet, and use only one 1U or 2U power supply in the chassis to improve space utilization in the standard cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural diagram of a rack power monitoring control box in a preferred embodiment of the utility model;

[0023] Figure 2 This is a schematic diagram of a top view of the interior of a rack power monitoring control box in a preferred embodiment of the utility model;

[0024] Figure 3 This is a schematic diagram of a monitoring circuit in a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0025] The present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. The present utility model is not limited to this embodiment, and other embodiments also belong to the scope of the present utility model as long as they conform to the gist of the present utility model.

[0026] In a preferred embodiment of the present utility model, in view of the above problems existing in the prior art, a power supply monitoring and control box for upper rack is now provided, as Figure 1 and Figure 2 shown, including:

[0027] A standard upper rack chassis 1, on the inner side wall of which there are provided a plurality of rail fuses 100, and on the outer wall of the standard upper rack chassis 1 there are installed a plurality of DC circuit breakers 200 and a plurality of double digital display meters 300;

[0028] A DC power supply 400, installed at the bottom inside the standard upper rack chassis 1, the DC power supply 400 is respectively connected to each DC circuit breaker 200, each DC circuit breaker 200 is correspondingly connected to a rail fuse 100, and each rail fuse 100 is correspondingly connected to a double digital display meter 300 to form a plurality of independent monitoring circuits, and each monitoring circuit is correspondingly connected to a product to be measured.

[0029] Specifically, the power supply monitoring and control box for upper rack in this embodiment adopts a standard upper rack chassis applicable to a 19-inch standard cabinet. In this embodiment, four DC circuit breakers 200, four rail fuses 100 and four double digital display meters 300 are provided. The power supply monitoring and control box for upper rack can support the independent formation of up to 4 power supply outputs from one-way power supply, greatly increasing the flexibility of power supply selection, increasing the resource utilization rate of the power supply, and reducing the use cost of the power supply.

[0030] In order to monitor the voltage and current values of each independent power supply, a double digital display meter 300 with voltage and current monitoring functions is selected in the present utility model. The voltage monitoring range supports DC 0 - 19.99V, 0 - 199V, 0 - 600V, and the current monitoring range supports 0 - 1.999A, 19.99A, 50A, 100A; and the double digital display meter 300 is independently powered by 220VAC, which can support the acquisition of the current value at the positive end of the power supply, reducing the occurrence probability of display shunt; there is a metering detection point led out below each double digital display meter 300, and it can be accessed by a multimeter for comparative metering;

[0031] Although the DC circuit breaker 200 also has overvoltage and overcurrent protection functions, in order to further ensure the power supply safety of the equipment, a fuse is added to the monitoring circuit. Conventional glass fuses usually support a maximum power supply of 20A, while the DC circuit breaker 200 in this embodiment can support a maximum of 63A. The dual digital display head 300 can support a maximum current monitoring of 100A. To prevent the fuse from becoming a bottleneck for the maximum power supply current limit value in the rack-mounted power supply monitoring control box of this embodiment, a new type of rail fuse 100 is adopted, and its internal fuse can support a maximum of 63A;

[0032] The conventional power supply is of the size of 1 / 2 - 2U and cannot be directly rack-mounted. If it needs to be rack-mounted, additional rack-mounted panels and brackets need to be installed. If 4 power supplies are rack-mounted at the same time, at least 6U of installation space in the cabinet needs to be occupied; while the power consumption generated by these 4 power supplies usually can be achieved by 1 19-inch 1U or 2U high rack-mounted power supply. The standard rack-mounted chassis in this embodiment is a 19-inch standard rack-mounted chassis structure with a height of 3U. Using a rack-mounted power supply with a height of 1U or 2U plus the standard rack-mounted chassis of the present utility model can improve the space utilization rate in the standard cabinet to a certain extent.

[0033] Specifically, the current monitoring wiring of the dual digital display head 300 in this embodiment is on the positive line of the DC power supply 400, which can effectively prevent the shunt phenomenon when multiple measured products share the same ground.

[0034] Specifically, in this embodiment, a 2P DC circuit breaker 200 is adopted to perform open circuit control on both the positive line and the negative line of the DC power supply 400.

[0035] In a preferred embodiment of the present utility model, multiple programmable high-current relay modules 500 are also provided on the bottom plate of the standard rack-mounted chassis 1, and a programmable high-current relay module 500 is also connected between each DC circuit breaker 200 and the corresponding rail fuse 100.

[0036] Specifically, in this embodiment, 2 programmable relay modules 500 are built-in. One is used for programming the positive power supply line and is connected to the positive line between the DC circuit breaker 200 and the corresponding rail fuse 100, and the other is used for programming the negative power supply line and is connected to the negative line between the DC circuit breaker 200 and the corresponding rail fuse 100. The programmable relay module 500 uses a serial port for communication control.

[0037] In a preferred embodiment of the present utility model, multiple programmable voltage and current acquisition modules 600 are also provided on the bottom plate of the standard rack-mounted chassis 1, and a programmable voltage and current acquisition module 600 is connected after each dual digital display head 300.

[0038] Specifically, in this embodiment, there are 4 built-in programmable voltage and current acquisition modules 600, which can collect voltage and current values in real time. The measured voltage range supports 0.05 - 300V, the resolution is 0.01V, the measurement accuracy is 1%, the measured current is 100A, the resolution is 0.01A, and the measurement accuracy is 1%. The programmable voltage and current acquisition module 600 uses a serial port for communication control;

[0039] Specifically, in this embodiment, the DC power supply 400 uses a 5V power supply module to supply power to the programmable relay module 500 and the programmable voltage and current acquisition module 600.

[0040] Specifically, currently, most test items are developing towards automation. Although the rack-mounted power supply monitoring and control box in the foregoing embodiment can support expanding one-way power supply into four-way power supply for use, it only supports conventional hardware control and acquisition methods, and requires manual control and on-site visual inspection to record data; when long-term environmental tests are required, the conventional hardware control and acquisition methods will consume a large amount of human resources; therefore, in this embodiment, 2 programmable high-current relay modules 500 are added to the rack-mounted power supply monitoring and control box, which are respectively used for programmable control of the positive and negative lines of the power supply; 4 programmable voltage and current acquisition modules 600 are added, which can monitor and measure the voltage and current values of each power supply in real time through software; a 5V DC power supply 400 is used to supply power to the programmable high-current relay module 500 and the programmable voltage and current acquisition module 600. The equivalent diagram of the monitoring circuit formed is as Figure 3 shown. It is upgraded to support programmable power supply output and programmable real-time acquisition of voltage and current; the power supply output time can be automatically controlled through software and the voltage and current values can be monitored in real time, and the data can be saved in real-time monitoring through software for easy review after the test. When the software detects abnormal voltage and current, the power supply output can be programmed to cut off immediately to protect the product under test.

[0041] In a preferred embodiment of the present invention, the standard rack-mounted chassis 1 includes:

[0042] A bottom plate 11, with side panels 12 installed on the left and right sides of the bottom plate 11, a front panel 13 installed on the front side of the bottom plate 11, and a fuse mounting plate 14 installed on the rear side of the bottom plate 11;

[0043] A cover plate 15, covering the top of the box formed by the bottom plate 11, the side panels 12, the front panel 13, and the fuse mounting plate 14;

[0044] Each rail fuse 100 is installed on the fuse mounting plate 14, each DC circuit breaker 200 and each dual digital display head 300 are installed on the front panel 13, and the DC power supply 400 is installed on the bottom plate 11.

[0045] Specifically, in this embodiment, a 4-pole rail fuse base 15 is also installed on the fuse mounting plate 14, which can install four rail fuses 100 at the same time, and the maximum current supported by the internal fuse is 63A. The fuse mounting plate 14 also has two serial communication interfaces, which are respectively used for communication with the program-controlled relay module 500 and the program-controlled voltage and current acquisition module 600.

[0046] In a preferred embodiment of the present utility model, the front panel 13 includes a digital display head mounting plate 131 and air switch mounting plates 132 on both sides of the digital display head mounting plate 131.

[0047] Each dual digital display head 300 is installed on the digital display head mounting plate 131, and each DC circuit breaker 200 is installed on the air switch mounting plate 132.

[0048] Specifically, in this embodiment, the front panel 13 adopts a modular structure design including a digital display head mounting plate 131 and an air switch mounting plate 132, which is convenient for repairing and replacing each component of the front panel 13.

[0049] In a preferred embodiment of the present utility model, the fuse mounting plate 14 is provided with a grounding post 141.

[0050] Specifically, in this embodiment, the fuse mounting plate 14 serves as the rear panel and has a grounding post 141, which can ground the box body and greatly increase the use safety.

[0051] In a preferred embodiment of the present utility model, a DC circuit breaker mounting rail 111 is provided on one side of the bottom plate 11 close to the front panel 13, and each DC circuit breaker 200 is fixed on the DC circuit breaker mounting rail 111.

[0052] In a preferred embodiment of the present utility model, the power input and output interfaces of the DC power supply 200 are aviation plug interfaces 210, which are arranged on the fuse mounting plate 14.

[0053] Specifically, in this embodiment, the input and output ports of the power supply are placed on the rear panel of the chassis and are in the form of aviation plugs. The aviation socket is designed with jacks and pins of specific shapes to ensure that only the correctly corresponding plugs can be inserted, avoiding connection errors caused by misoperation, thereby improving the safety of the system. Aviation plugs usually adopt a plug-and-play design, which is convenient and fast for installation and disassembly, saving time and labor costs.

[0054] In a preferred embodiment of the present utility model, a front side ear 121 is provided on one side of the side panel 12 close to the front panel 13, and a handle 122 is installed on the front side ear 121.

[0055] Specifically, in this embodiment, adding a handle 122 on the side panel 12 can facilitate the movement of the power supply monitoring and control box of this embodiment and facilitate the installation on a 19-inch standard rack-mounted cabinet.

[0056] In a preferred embodiment of the present utility model, a fastener 151 is provided at the connection between the cover plate 15 and the side panel 12, and the cover plate 15 and the side panel 12 are fixedly connected by the fastener 151.

[0057] The above are only preferred embodiments of the present utility model, and do not limit the implementation manners and protection scope of the present utility model accordingly. For those skilled in the art, it should be realized that all equivalent replacements and obvious changes made by using the content of this specification and the drawings should be included in the protection scope of the present utility model.

Claims

1. A rack power monitoring control box, characterized in that: include: A standard rack-mounted chassis, wherein a plurality of rail fuses are arranged on the inner side wall of the standard rack-mounted chassis, and a plurality of DC circuit breakers and a plurality of dual digital display meters are installed on the outer wall of the standard rack-mounted chassis; A DC power supply is installed at the bottom of the inner side of the standard rack chassis, and the DC power supply is respectively connected to each of the DC circuit breakers, each of the DC circuit breakers is correspondingly connected to a guide rail fuse, each guide rail fuse is correspondingly connected to a dual digital display meter to form multiple independent monitoring circuits, and each monitoring circuit is correspondingly connected to a product under test.

2. The rack power monitoring control box according to claim 1 is characterized in that: The bottom plate of the standard rack-mounted chassis is also provided with a plurality of program-controlled high-current relay modules, and the program-controlled high-current relay module is also connected between each of the DC circuit breakers and the corresponding guide rail fuse.

3. The rack power monitoring control box according to claim 1 is characterized in that: The bottom plate of the standard rack-mounted chassis is also provided with a plurality of program-controlled voltage and current acquisition modules, and each of the dual digital display meters is also connected to one of the program-controlled voltage and current acquisition modules.

4. The rack power monitoring control box according to claim 1 is characterized in that: The standard rackmount chassis includes: A bottom plate, side panels are installed on the left and right sides of the bottom plate respectively, a front panel is installed on the front side of the bottom plate, and a safety mounting plate is installed on the rear side of the bottom plate; A cover plate, which is arranged on the top of the box body surrounded by the bottom plate, the side panels, the front panel and the insurance mounting plate; Each of the guide rail fuses is installed on the fuse installation plate, each of the DC circuit breakers and each of the dual digital display meters are installed on the front panel, and the DC power supply is installed on the bottom plate.

5. The rack power monitoring control box according to claim 4 is characterized in that: The front panel includes a digital display head mounting plate and open mounting plates on both sides of the digital display head mounting plate; Each of the dual digital display meters is installed on the digital display meter installation plate, and each of the DC circuit breakers is installed on the circuit breaker installation plate.

6. The rack power monitoring control box according to claim 4, characterized in that: The fuse installation plate is provided with a grounding column.

7. The rack power monitoring control box according to claim 4, characterized in that: A DC circuit breaker mounting rail is provided on one side of the bottom plate close to the front panel, and each of the DC circuit breakers is fixed on the DC circuit breaker mounting rail.

8. The rack power monitoring control box according to claim 4, characterized in that: The power input and output interface of the DC power supply is an aviation plug interface, which is arranged on the fuse installation plate.

9. The rack power monitoring control box according to claim 4, characterized in that: A front side ear is provided on one side of the side panel close to the front panel, and a handle is installed on the front side ear.

10. The rack power monitoring control box according to claim 4, characterized in that: A fastener is provided at the connection between the cover plate and the side panel, and the cover plate and the side panel are fixedly connected by the fastener.

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