Power supply conversion box

Abstract

The utility model discloses a power supply conversion box, which is connected between a sensor and a collector, is used for realizing power supply and data communication, and relates to the field of data monitoring, the power supply conversion box comprises a box body and a power supply conversion system, the power supply conversion system is arranged in the box body, and the size of the box body is adjustable; the power supply conversion system comprises a switching power supply module and at least one power supply wiring conversion module. The switching power supply module is used for accessing a power supply and controlling on-off of the power conversion box; the power supply wiring conversion module is connected with the switching power supply module and is used for realizing power conversion and signal transmission; the power supply wiring conversion module is provided with a communication interface, a sensor interface and a power supply port, the communication interface is used for connecting a collector, the sensor interface is used for cascading a sensor, and the power supply port is used for connecting other power supply equipment. According to the invention, centralized power supply for a plurality of sensors can be realized, data communication can be carried out at the same time, the use of cables and power supplies is greatly reduced, the wiring efficiency is improved, and the cost is also reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of data monitoring, in particular to a power conversion box. Background Art

[0002] In the field of data center monitoring, various types of sensors will be deployed at various locations in the data center. The monitoring system collects data from the sensors through collectors and processes it to obtain information about the data center's environment, power equipment status, and status of various IT asset equipment, thereby achieving real-time detection of the data center and facilitating management.

[0003] The various types of sensors deployed generally include environmental, security, fire protection, and IT asset types. In actual use, the power supply source of the sensors is relatively critical. Due to the high power consumption, long working time and inconvenient battery replacement of the sensors, the sensors currently basically adopt independent, wired power supply methods. In addition, the sensors also need to communicate data. Therefore, during the actual cable deployment, the power supply line and communication line will be connected separately, and the wiring efficiency is low. In addition, due to the large number of cascaded sensors, it is easy to cause multiple and chaotic cable connections. The sensors are distributed more dispersedly, resulting in the inability to centrally supply power, an increase in the number of power supplies, and an increase in costs.

[0004] Therefore, the existing technology still needs to be improved and developed. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a defect marking device in view of the above-mentioned defects of the prior art, aiming to solve the problem that the existing intelligent sensors use independent power supply and the separation of power supply and communication leads to a large number of confusing wire connections and high costs.

[0006] The present application provides a power conversion box, which adopts the following technical solution:

[0007] A power conversion box is connected between a sensor and a collector to realize power supply and data communication, and includes:

[0008] A box and a power conversion system, wherein the power conversion system is built in the box, and the size of the box is adjustable;

[0009] The power conversion system comprises: a switching power supply module and at least one power wiring conversion module;

[0010] The switch power supply module is used to access the power supply and control the opening and closing of the power conversion box; the power wiring conversion module is connected to the switch power supply module to realize power conversion and signal transmission;

[0011] The power wiring conversion module has a communication interface, a sensor interface and a power supply port. The communication interface is used to connect to a collector, the sensor interface is used to cascade sensors, and the power supply port is used to connect to other electrical devices.

[0012] Furthermore, the sensor interface adopts a double-layer RJ45 socket, and the pins of the double-layer RJ45 socket are defined as: the first to eighth pins of the double-layer RJ45 socket are the first port, the ninth to sixteenth pins of the double-layer RJ45 socket are the second port, and the seventeenth to twenty-fourth pins of the double-layer RJ45 socket are the detection port.

[0013] Furthermore, the first port is connected to the first sensor, and the second port is connected to the last sensor, so that the first port, the plurality of sensors, and the second port form a closed-loop connection.

[0014] Furthermore, the power wiring conversion module includes a DC power socket, a first fuse, a second fuse, and a third fuse, one end of the first fuse, the second fuse, and the third fuse are all connected to the DC power socket, and the other end of the first fuse is used to connect to the power supply port; the other end of the second fuse serves as the first power supply end and is connected to the fourth and seventh pins of the sensor interface, the other end of the third fuse serves as the second power supply end and is connected to the twelfth and fifteenth pins of the sensor interface, and the third and sixth pins of the sensor interface are connected to the communication interface.

[0015] Furthermore, the communication interface includes a Phoenix terminal and a standard RJ45 socket.

[0016] Further, the sensor interface has a first light-emitting diode and a third light-emitting diode inside, the positive electrode of the first light-emitting diode is connected to the eighteenth pin of the sensor interface, the negative electrode of the first light-emitting diode is connected to the seventeenth pin of the sensor interface, and the seventeenth pin of the sensor interface is grounded; the positive electrode of the third light-emitting diode is connected to the twenty-second pin of the sensor interface, the negative electrode of the third light-emitting diode is connected to the twenty-first pin of the sensor interface, and the twenty-first pin of the sensor interface is grounded;

[0017] The power wiring conversion module also includes a first resistor and a third resistor, one end of the first resistor is connected to the first power supply end, and the other end of the first resistor is connected to the eighteenth pin of the sensor interface, one end of the third resistor is connected to the second power supply end, and the other end of the third resistor is connected to the twenty-second pin of the sensor interface.

[0018] Furthermore, the sensor interface further comprises a second light emitting diode and a fourth light emitting diode, the anode of the second light emitting diode is connected to the 20th pin of the sensor interface, the cathode of the second light emitting diode is connected to the 19th pin of the sensor interface, and the 19th pin of the sensor interface is grounded;

[0019] The anode of the fourth light emitting diode is connected to the 24th pin of the sensor interface, the cathode of the fourth light emitting diode is connected to the 23rd pin of the sensor interface, and the 23rd pin of the sensor interface is grounded;

[0020] The power wiring conversion module further includes a first comparator, a second comparator, a second resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, and a tenth resistor;

[0021] The other end of the second fuse is connected to one end of the fifth resistor and one end of the ninth resistor, the other end of the fifth resistor is connected to one end of the seventh resistor and the fourth and seventh pins of the sensor interface, the other end of the seventh resistor is connected to the inverting input end of the first comparator, the other end of the ninth resistor is connected to the non-inverting input end of the first comparator, the output end of the first comparator is connected to one end of the second resistor, and the other end of the second resistor is connected to the twentieth pin of the sensor interface;

[0022] The other end of the third fuse is connected to one end of the eighth resistor and one end of the sixth resistor, the other end of the eighth resistor is connected to one end of the tenth resistor and the twelfth and fifteenth pins of the sensor interface, the other end of the tenth resistor is connected to the inverting input of the second comparator, the other end of the sixth resistor is connected to the non-inverting input of the second comparator, the output of the second comparator is connected to one end of the fourth resistor, and the other end of the fourth resistor is connected to the twenty-fourth pin of the sensor interface.

[0023] Furthermore, the power wiring conversion module is based on 35W power, the power of the switching power module corresponds to the power wiring conversion module, and the power specifications of the switching power module include 35W, 75W, 100W, 150W, 200W, 250W, 300W, 350W and 400W.

[0024] Beneficial effects of the utility model: The power conversion box of the present application has both a sensor interface for cascading multiple sensors and a communication interface for connecting a collector. Each sensor is connected in turn through the sensor interface, and the collector is connected through the communication interface. The data center collects data from the sensor through the collector to obtain the equipment status information of the data center, so as to achieve the purpose of real-time monitoring of the data center. Not only can it realize centralized power supply to multiple sensors, but it can also perform data communication, greatly reducing the use of cables and power supplies, improving wiring efficiency, and reducing costs. In addition, the power conversion box also has a power supply port, which can power other external devices at the same time, and is extremely practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is an overall architecture diagram of the power conversion box provided in an embodiment of the present application.

[0026] Figure 2 It is a schematic diagram of the front interface of the power conversion box provided in an embodiment of the present application.

[0027] Figure 3 It is a schematic diagram of the back interface of the power conversion box provided in an embodiment of the present application.

[0028] Figure 4 It is a diagram of the internal position layout of two power wiring conversion modules of the power conversion box provided in an embodiment of the present application.

[0029] Figure 5 It is a diagram of the internal position layout of nine power wiring conversion modules of the power conversion box provided in an embodiment of the present application.

[0030] Figure 6 This is a diagram of the internal port connection structure of the power wiring conversion module provided in an embodiment of the present application.

[0031] Figure 7 It is a circuit schematic diagram of the power wiring conversion module provided in an embodiment of the present application.

[0032] Figure numerals: 1, box body; 2, power conversion system; 21, switching power supply module; 22, power wiring conversion module; 221, communication interface; 222, sensor interface; 223, power supply port; 224, Phoenix terminal; 225, standard RJ45 socket. DETAILED DESCRIPTION

[0033] The present application discloses a power conversion box. To make the purpose, technical solution and effect of the present application clearer and more specific, the present application is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific examples described here are only used to explain the present application and are not used to limit the present application.

[0034] like Figure 1 As shown, the embodiment of the present application discloses a power conversion box, which is connected between a sensor and a collector and is used to realize power supply and data communication, and includes: a box body 1 and a power conversion system 2, the power conversion system 2 is built in the box body 1, and the size of the box body 1 is adjustable;

[0035] The power conversion system 2 includes: a switching power module 21 and at least one power wiring conversion module 22;

[0036] The switch power module 21 is used to access the power supply and control the opening and closing of the power conversion box; the power wiring conversion module 22 is connected to the switch power module 21 and is used to realize power conversion and signal transmission;

[0037] The power wiring conversion module 22 has a communication interface 221, at least one sensor interface 222 and a power supply port 223. The communication interface 221 is used to connect to a collector, the at least one sensor interface 222 is used to cascade sensors, and the power supply port 223 is used to connect to other electrical devices.

[0038] In actual applications, the power conversion box connects the sensor and the collector, connects each sensor in turn through the sensor interface 222, and connects the collector through the communication interface 221. The data center collects data from the sensor through the collector to obtain the equipment status information of the data center, so as to achieve the purpose of real-time monitoring of the data center. Figure 2 and Figure 3 As shown, the power conversion box of the present application has a sensor interface 222 for (daisy chain) cascading multiple sensors and a communication interface 221 for connecting a collector, which can not only realize centralized power supply for multiple sensors, but also perform data communication, greatly reducing the use of cables and power supplies, improving wiring efficiency, and reducing costs. In addition, the power conversion box also has a power supply port 223, which can power other external devices at the same time, and is extremely practical. The power supply port is a 5.08mm pitch 2PI N DC power output terminal.

[0039] Moreover, the present application can also be rapidly expanded by replacing the standard power switch module and superimposing the power wiring conversion module to increase the ability of the power conversion box to access the equipment and meet the load requirements of different power levels. The power wiring conversion module can support the parallel installation of 1 to 9 power wiring conversion modules to achieve expansion, and use 35W as the power base. The power of the switch power module is used in conjunction with the number of power wiring conversion modules, so as to support the installation of 9 types of power switch modules, including 35W, 75W, 100W, 150W, 200W, 250W, 300W, 350W, and 400W. The DC voltage of the switch power module can be 12V, 24V, 48V and other common power specifications, and can also be expanded to other types of DC low-voltage power specifications. This application mainly takes DC12V, 3A, 35W as an example. Other types of power specifications also have the same wiring design ideas and belong to the scope of this solution feature application.

[0040] In this application, if Figure 4 and Figure 5 As shown, the depth of the entire box is fixed, the depth is 200mm, the height is standard 1U (44.45mm), and the width can be selected between 150mm and 443mm according to actual needs. The width after adding the mounting ears does not exceed 482.6mm. The size of a single power wiring conversion module is 73mm*50mm; during specific installation, a maximum of three power wiring conversion modules placed side by side with the power switch module can be placed, and a maximum of six power wiring conversion modules placed on one side of the power switch module can be placed. The box is made of sheet metal with flexible width. The power switch module and the power wiring conversion module are fixed by the studs reserved on the box, and all cables are integrated inside the box. When installing different numbers of modules (expanding power and port number), the sheet metal structure is adjusted in size to ensure a simple and compact structure and optimal cost.

[0041] like Figure 6 and Figure 7 As shown, the power wiring conversion module 22 includes a DC power socket U3, a first fuse F1, a second fuse F2, and a third fuse F3. One end of the first fuse F1, the second fuse F2, and the third fuse F3 are all connected to the DC power socket U3, wherein the other end of the first fuse F1 is connected to the power supply port CN4 for powering other devices; the other end of the second fuse F2 serves as the first power supply terminal VCC1, and is connected to the fourth and seventh pins of the sensor interface U6, and the other end of the third fuse F3 serves as the second power supply terminal VCC2, and is connected to the twelfth and fifteenth pins of the sensor interface U6.

[0042] Specifically, the sensor interface U6 adopts a double-layer RJ45 socket. When defining, the first pin to the eighth pin of the sensor interface U6 are used as the first port, the ninth pin to the sixteenth pin of the sensor interface U6 are used as the second port, and the seventeenth pin to the twenty-fourth pin of the sensor interface U6 are used as the detection port. The first port is connected to the first sensor, and the second port is connected to the last sensor, so that the first port, several sensors, and the second port form a closed loop connection, that is, the external sensor device is connected in sequence from the first port (the fourth and seventh pins of the sensor interface U6), and then the closed loop is connected to the second port (the twelfth and fifteenth pins of the sensor interface U6). In this way, the sensor devices are connected hand in hand to form a closed loop, forming a branch of the power signal line, reducing the voltage drop on the power line.

[0043] The third and sixth pins of the sensor interface U6 are connected to the communication interface, and the fifth, eighth, thirteenth and sixteenth pins of the sensor interface U6 are grounded. In this way, after the RS485 signal is input from the collector, it passes through each sensor device to obtain the data information therein. Since the communication interface is only connected to the first port of the sensor interface U6, the RS485 signal will not loop to the second port of the sensor interface U6, thereby avoiding the signal loop of the RS485 bus device. The communication interface includes Phoenix terminal 224 (CN1) and standard RJ45 socket 225 (RJ4) to facilitate the wiring of different devices and improve the selectivity of external device connection in actual use. Phoenix terminal CN1 is a 2P IN RS485 signal input terminal with a pitch of 5.08mm.

[0044] In some embodiments, the sensor interface U6 has a first light-emitting diode D1, a second light-emitting diode D2, a third light-emitting diode D3 and a fourth light-emitting diode D4 inside, the positive electrode of the first light-emitting diode D1 is connected to the eighteenth pin of the sensor interface U6, the negative electrode of the first light-emitting diode D1 is connected to the seventeenth pin of the sensor interface U6, and the seventeenth pin of the sensor interface U6 is grounded; the positive electrode of the second light-emitting diode D2 is connected to the twentieth pin of the sensor interface U6, the negative electrode of the second light-emitting diode D2 is connected to the nineteenth pin of the sensor interface U6, and the nineteenth pin of the sensor interface U6 is grounded; the positive electrode of the third light-emitting diode D3 is connected to the twenty-second pin of the sensor interface U6, the negative electrode of the third light-emitting diode D3 is connected to the twenty-first pin of the sensor interface U6, and the twenty-first pin of the sensor interface U6 is grounded; the positive electrode of the fourth light-emitting diode D4 is connected to the twenty-fourth pin of the sensor interface U6, the negative electrode of the fourth light-emitting diode D4 is connected to the twenty-third pin of the sensor interface U6, and the twenty-third pin of the sensor interface U6 is grounded.

[0045] In some embodiments, the power wiring conversion module also includes a first resistor R1 and a third resistor R3, one end of the first resistor R1 is connected to the first power supply terminal VCC1, the other end of the first resistor R1 is connected to the eighteenth pin of the sensor interface U6, one end of the third resistor R3 is connected to the second power supply terminal VCC2, and the other end of the third resistor R3 is connected to the twenty-second pin of the sensor interface U6.

[0046] When the circuit is working normally, the first light-emitting diode D1 and the third light-emitting diode D3 light up green. If the second fuse F2 or the third fuse F3 is interrupted by overcurrent, the first light-emitting diode D1 or the third light-emitting diode D3 will go out accordingly, thereby realizing overcurrent protection for the circuit and facilitating observation and judgment by users.

[0047] In some embodiments, the power wiring conversion module 22 also includes a first comparator U4.1, a second comparator U4.2, a second resistor R2, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, a tenth resistor R10, and a first capacitor C1.

[0048] The other end of the second fuse F2 is connected to one end of the fifth resistor R5 and one end of the ninth resistor R9, the other end of the fifth resistor R5 is connected to one end of the seventh resistor R7 and the fourth and seventh pins of the sensor interface U6, the other end of the seventh resistor R7 is connected to the inverting input terminal of the first comparator U4.1, the other end of the ninth resistor R9 is connected to the non-inverting input terminal of the first comparator U4.1, the power supply terminal of the first comparator U4.1 is connected to the first power supply terminal VCC1 and one end of the first capacitor C1, the other end of the first capacitor C1 is grounded, the ground terminal of the first comparator U4.1 is grounded, the output end of the first comparator U4.1 is connected to one end of the second resistor R2, and the other end of the second resistor R2 is connected to the twentieth pin of the sensor interface U6;

[0049] The other end of the third fuse F3 is connected to one end of the eighth resistor R8 and one end of the sixth resistor R6, the other end of the eighth resistor R8 is connected to one end of the tenth resistor R10 and the twelfth and fifteenth pins of the sensor interface U6, the other end of the tenth resistor R10 is connected to the inverting input of the second comparator U4.2, the other end of the sixth resistor R6 is connected to the non-inverting input of the second comparator U4.2, the output of the second comparator U4.2 is connected to one end of the fourth resistor R4, and the other end of the fourth resistor R4 is connected to the twenty-fourth pin of the sensor interface U6.

[0050] In the specific implementation, by collecting the voltage drop of the fifth resistor R5 and the eighth resistor R8, when the voltage drop of the fifth resistor R5 is greater than the input offset voltage of the first comparator U4.1, the first comparator U4.1 outputs a high level signal, and the second light-emitting diode D2 lights up yellow. Similarly, when the voltage drop of the eighth resistor R8 is greater than the input offset voltage of the second comparator U4.2, the second comparator U4.2 outputs a high level signal, and the fourth light-emitting diode D4 lights up yellow, so as to determine whether the external sensor device (load) is connected or the line is interrupted. By setting the resistance value of the fifth resistor R5 and the eighth resistor R8, for example, it can be 100 milliohms, and the offset voltage of the first comparator U4.1 or the second comparator U4.2 is 0.8mV (the first comparator U4.1 and the second comparator U4.2 are both LM393), then it can be detected that the load with a current greater than 8mA is connected, and the current passing through the load is greater than 8mA, and the light-emitting diode lights up yellow. At this time, the user can identify whether there is a load connected and whether it works normally.

[0051] Compared with the prior art, the utility model has the following advantages:

[0052] 1. The power conversion box of the present application has a sensor interface for cascading multiple sensors and a communication interface for connecting a collector. Each sensor is connected in turn through the sensor interface, and the collector is connected through the communication interface. The data center collects data from the sensor through the collector to obtain the equipment status information of the data center, so as to achieve the purpose of real-time monitoring of the data center. It can not only realize centralized power supply for multiple sensors, but also perform data communication, greatly reducing the use of cables and power supplies, improving wiring efficiency, and reducing costs.

[0053] 2. After the RS485 signal is input from the collector, it passes through each sensor device to obtain the data information therein. Since the communication interface is only connected to the first port of the sensor interface U6, the RS485 signal will not loop to the second port of the sensor interface U6, thereby avoiding the signal loop of the RS485 bus device.

[0054] It should be understood that the application of the present application is not limited to the above examples. For ordinary technicians in this field, improvements or changes can be made based on the above description. All these improvements and changes should fall within the scope of protection of the claims attached to this application.

Claims

1. A power conversion box, connected between a sensor and a collector, for realizing power supply and data communication, characterized in that: include: A box and a power conversion system, wherein the power conversion system is built in the box, and the size of the box is adjustable; The power conversion system comprises: a switching power supply module and at least one power wiring conversion module; The switch power supply module is used to access the power supply and control the opening and closing of the power conversion box; The power wiring conversion module is connected to the switching power supply module to realize power conversion and signal transmission; The power wiring conversion module has a communication interface, a sensor interface and a power supply port. The communication interface is used to connect to a collector, the sensor interface is used to cascade sensors, and the power supply port is used to connect to other electrical devices.

2. The power conversion box according to claim 1, characterized in that: The sensor interface adopts a double-layer RJ45 socket, and the pins of the double-layer RJ45 socket are defined as follows: the first to eighth pins of the double-layer RJ45 socket are the first port, the ninth to sixteenth pins of the double-layer RJ45 socket are the second port, and the seventeenth to twenty-fourth pins of the double-layer RJ45 socket are the detection port.

3. The power conversion box according to claim 2, characterized in that: The first port is connected to the first sensor, and the second port is connected to the last sensor, so that the first port, the plurality of sensors, and the second port form a closed-loop connection.

4. The power conversion box according to claim 3, characterized in that: The power wiring conversion module includes a DC power socket, a first fuse, a second fuse, and a third fuse; One end of the first fuse, the second fuse, and the third fuse are all connected to the DC power socket, and the other end of the first fuse is used to connect to the power supply port; The other end of the second fuse serves as the first power supply end and is connected to the fourth and seventh pins of the sensor interface. The other end of the third fuse serves as the second power supply end and is connected to the twelfth and fifteenth pins of the sensor interface. The third and sixth pins of the sensor interface are connected to the communication interface.

5. The power conversion box according to claim 4, characterized in that: The communication interface includes a Phoenix terminal and a standard RJ45 socket.

6. The power conversion box according to claim 4, characterized in that: The sensor interface has a first light emitting diode and a third light emitting diode inside, the positive electrode of the first light emitting diode is connected to the eighteenth pin of the sensor interface, the negative electrode of the first light emitting diode is connected to the seventeenth pin of the sensor interface, and the seventeenth pin of the sensor interface is grounded; The anode of the third light emitting diode is connected to the 22nd pin of the sensor interface, the cathode of the third light emitting diode is connected to the 21st pin of the sensor interface, and the 21st pin of the sensor interface is grounded; The power wiring conversion module also includes a first resistor and a third resistor, one end of the first resistor is connected to the first power supply end, and the other end of the first resistor is connected to the eighteenth pin of the sensor interface, one end of the third resistor is connected to the second power supply end, and the other end of the third resistor is connected to the twenty-second pin of the sensor interface.

7. The power conversion box according to claim 4, characterized in that: The sensor interface further comprises a second light emitting diode and a fourth light emitting diode, wherein the anode of the second light emitting diode is connected to the 20th pin of the sensor interface, the cathode of the second light emitting diode is connected to the 19th pin of the sensor interface, and the 19th pin of the sensor interface is grounded; The anode of the fourth light emitting diode is connected to the 24th pin of the sensor interface, the cathode of the fourth light emitting diode is connected to the 23rd pin of the sensor interface, and the 23rd pin of the sensor interface is grounded; The power wiring conversion module further includes a first comparator, a second comparator, a second resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, and a tenth resistor; The other end of the second fuse is connected to one end of the fifth resistor and one end of the ninth resistor, the other end of the fifth resistor is connected to one end of the seventh resistor and the fourth and seventh pins of the sensor interface, the other end of the seventh resistor is connected to the inverting input end of the first comparator, the other end of the ninth resistor is connected to the non-inverting input end of the first comparator, the output end of the first comparator is connected to one end of the second resistor, and the other end of the second resistor is connected to the twentieth pin of the sensor interface; The other end of the third fuse is connected to one end of the eighth resistor and one end of the sixth resistor, the other end of the eighth resistor is connected to one end of the tenth resistor and the twelfth and fifteenth pins of the sensor interface, the other end of the tenth resistor is connected to the inverting input of the second comparator, the other end of the sixth resistor is connected to the non-inverting input of the second comparator, the output of the second comparator is connected to one end of the fourth resistor, and the other end of the fourth resistor is connected to the twenty-fourth pin of the sensor interface.

8. The power conversion box according to claim 1, characterized in that: The power wiring conversion module is based on 35W power, the power of the switching power module corresponds to the power wiring conversion module, and the power specifications of the switching power module include 35W, 75W, 100W, 150W, 200W, 250W, 300W, 350W and 400W.

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