Multiplexing device for combined operation of integrated power supply and communication power supply

Abstract

The invention discloses an integrated power supply and communication power supply combined operation multiplexing device, which comprises a shell, an air outlet net opening, an air inlet, a hidden handle, a fan, a circuit module, a display control module and an input and output module, and is characterized in that the air outlet net opening is formed in the right side surface of the shell, the air inlet is formed in the left side surface of the shell, and the circuit module is fixedly mounted in the shell; the fan is installed on the side close to the air inlet and located in the shell, the two hidden handles are installed on the left side edge and the right side edge of the front face of the shell respectively, the display control module is located in the middle of the two hidden handles, and the input and output module is located on the rear face of the shell. The device can make full use of integrated power supplies in a station, two paths of integrated power supplies can be utilized at the same time and combined with a communication power supply, and the integrated power supplies are mutually standby in a power supply system in the station, so that stable power supply of three sets of direct-current power supply systems is realized, and reliable power supply of transmission equipment can be always ensured no matter any two sets of power supplies fail.

Description

Technical Field

[0001] The present invention relates to the technical field of power supply, and in particular to a multiplexing device for combining the operation of an integrated power supply and a communication power supply. Background Art

[0002] With the development of society, the scale of power grids continues to expand, the demand for electricity continues to grow, the power grid structure becomes increasingly complex, and the safe and stable operation of the power grid becomes increasingly important. The number of services carried by information and communication equipment in stations will increase year by year. The safe and reliable operation of communication equipment is crucial, and the power supply reliability of communication equipment in stations is the basis for the safe operation of substation equipment. At present, the 220 kV stations put into operation are equipped with two integrated power supply systems, and all have the following problems:

[0003] 1. It is impossible to accurately obtain the operating status of the equipment. When an integrated power supply failure occurs, it is necessary to rush to the site to eliminate the fault. In addition, the integrated power supply system is operated and maintained by the substation operation and maintenance center, which is not conducive to lean operation and maintenance. When the two sets of integrated power supply communication DC lose power at the same time, the transmission equipment and other communication equipment in the station lose power;

[0004] 2. The failure rate of DC / DC rectifier modules is high. According to failure cases in recent years, DC / DC power modules are easily affected by the ambient temperature in the station, causing some modules to malfunction, making them unable to carry loads normally, causing power outages in communication equipment such as multiplexing interface devices;

[0005] 3. Failure to utilize resources rationally. In order to improve the reliability of power supply for transmission equipment, a dedicated communication power supply is configured in the station for the power input of important core sites. However, the station is configured with two integrated power supply systems and one independent communication power supply system, which will cause one power supply system to be shelved and the three power supply systems cannot be fully utilized, resulting in a waste of resources. Summary of the invention

[0006] In order to overcome the above problems, the purpose of the present invention is to provide a multiplexing device that combines the operation of an integrated power supply and a communication power supply. The device can make full use of the integrated power supply in the station, and can use two integrated power supplies at the same time, and combine them with the communication power supply to serve as backup for each other in the power supply system in the station, thereby realizing stable power supply of three sets of DC power supply systems. Regardless of any two power supply failures, the reliable power supply of the transmission equipment can always be guaranteed.

[0007] The technical solution adopted by the present invention is: comprising a shell, an air outlet mesh port, an air inlet, a hidden handle, a fan, a circuit module, a display control module, and an input-output module. The right side of the shell is provided with an air outlet mesh port, and the left side is provided with an air inlet. The circuit module is fixedly installed inside the shell. The fan is installed on a side close to the air inlet and is located inside the shell. There are two hidden handles, which are respectively installed at the left and right edge positions of the front of the shell. The display control module is located between the two hidden handles. The input-output module is located behind the shell.

[0008] The circuit module includes two DC inputs DC1 and DC2, a DC / DC conversion circuit, a PWM control circuit, a rectifier and filter circuit, and a monitoring interface circuit. The two DCs DC1 and DC2 are input simultaneously and connected to the DC / DC conversion circuit. The PWM control circuit controls the connection to the DC / DC conversion circuit. The rectifier and filter circuit is connected to the output of the DC / DC conversion circuit. The monitoring interface circuit is connected to the PWM control circuit.

[0009] Furthermore, the display control module includes a display panel, a backlight switch, an indicator light, a float charge / equal charge selection switch, and a power switch. The display panel adopts an LCD display screen and is located on the left front side of the shell. The backlight switch is located on the right side of the display panel, the indicator light is located on the right side of the backlight switch, the float charge / equal charge selection switch is located below the indicator light, and the power switch is located on the right side of the indicator light.

[0010] Furthermore, the input-output module includes a first input interface, a second input interface, an output interface, a dip switch, and a wiring terminal. The first input interface is located in the middle position of the rear of the shell, the second input interface is located on the right side of the first input interface, the output interface is located on the right side of the rear of the shell and on the right side of the second input interface, the dip switch is located on the upper left side of the rear of the shell, and the wiring terminal is located below the dip switch.

[0011] Furthermore, a groove is provided on the front surface of the shell, and the hidden handle is rotatably connected in the groove.

[0012] Furthermore, cabinet hanging ears are installed on the left and right sides of the front surface of the shell, and fixing holes are opened on the cabinet hanging ears.

[0013] Furthermore, the first input interface, the second input interface, and the output interface use binding posts, and a transparent dust cover is rotatably connected on the top of the binding posts.

[0014] Furthermore, the dip switch is in the form of five digits, wherein the first digit is an invalid switch, and the following four digits are in the form of binary code, corresponding to 16 communication addresses.

[0015] Furthermore, the wiring terminal is a 9-pin wiring terminal, which corresponds to RS485 communication, fault dry contact, and current sharing interface respectively. The fault dry contact includes a common terminal, battery voltage fault, internal overtemperature fault, output voltage fault, and output abnormal fault.

[0016] Furthermore, the indicator lights include an operation indicator light, a fault indicator light, an equalization charge adjustment, and a float charge adjustment;

[0017] The operation indicator light is on when the machine is operating normally and there is voltage output;

[0018] The fault indicator light will light up when the machine has an overvoltage or undervoltage fault;

[0019] The equalization charging adjustment can change the equalization charging voltage value of the battery by this machine;

[0020] The float charge regulation can change the float charge voltage value of the battery by the machine.

[0021] Furthermore, the shell is made of iron material and is spray-painted.

[0022] Beneficial effects of the present invention:

[0023] 1. Reasonable use of three sets of power supplies to ensure two-way power supply for communication transmission equipment. The two inputs of the device are connected to two sets of integrated power supply communication outputs (-48V). The output end of the device is used to connect to one power input of the transmission equipment, and the output of the independent communication power supply is used to connect to another power input of the transmission equipment. In this way, three sets of DC power supplies can be used for stable power supply, with high resource utilization, safety and reliability.

[0024] 2. The communication transmission equipment uses three sets of DC power supplies for stable power supply, thus ensuring that even if any two sets of power supplies fail at the same time, the single-channel normal power supply of the transmission equipment can be guaranteed, with high fault tolerance.

[0025] 3. The device is directly installed on the panel cabinet in the station through the cabinet hanging ears. The installation and construction are simple and no special training is required. Any personnel can easily complete the operation. At the same time, the shell is made of iron spray paint, which is sturdy and durable, ensuring the reliable power supply of the equipment in the station and saving manpower and material resources for multiple emergency repairs. The overall structure is simple, economical and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the multiplexing device for combining the operation of the integrated power supply and the communication power supply proposed by the present invention;

[0027] Figure 2 This is a schematic diagram of a circuit module of a multiplexing device for combining the operation of an integrated power supply and a communication power supply proposed by the present invention;

[0028] Figure 3A schematic diagram of a display control module of a multiplexing device for combining the operation of an integrated power supply and a communication power supply proposed by the present invention;

[0029] Figure 4 A schematic diagram of the input and output modules of the multiplexing device for combining the integrated power supply and the communication power supply proposed by the present invention;

[0030] Figure 5 This is a schematic diagram of the hidden handle structure of the multiplexing device for combined operation of the integrated power supply and the communication power supply proposed by the present invention.

[0031] Description of Reference Numerals

[0032] 1-housing, 11-groove, 12-cabinet mounting ear, 121-fixing hole, 2-air outlet, 3-hidden handle, 4-display control module, 41-display panel, 42-backlight switch, 43-indicator light, 431-operation indicator light, 432-fault indicator light, 433-equalizing charge adjustment, 434-floating charge adjustment, 44-floating charge / equalizing charge selection switch, 45-power switch, 5-input and output module, 51-first input interface, 52-second input interface, 53-output interface, 54-dip switch, 55-wiring terminal. DETAILED DESCRIPTION

[0033] The specific implementation of the present invention is described below in conjunction with the accompanying drawings and embodiments:

[0034] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which the present invention can be implemented. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0035] At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present invention. Changes or adjustments to their relative relationships should be regarded as the scope of implementation of the present invention without substantially changing the technical content.

[0036] like Figures 1 to 5As shown, it shows a specific implementation of the present invention: the multiplexing device for combining the operation of an integrated power supply and a communication power supply disclosed in the present invention is characterized in that it includes a shell 1, an air outlet mesh port 2, an air inlet, a hidden handle 3, a fan, a circuit module, a display control module 4, and an input-output module 5. The right side of the shell 1 is provided with an air outlet mesh port 2, and the left side is provided with an air inlet. The circuit module is fixedly installed inside the shell 1, and the fan is installed on a side close to the air inlet, located inside the shell 1. There are two hidden handles 3, which are respectively installed at the left and right edge positions on the front of the shell 1. The display control module 4 is located in the middle of the two hidden handles 3, and the input-output module 5 is located behind the shell 1.

[0037] In the present invention, Figure 1 As shown, the air inlet is located on the left side of the shell 1, and the air outlet mesh port 2 is located on the right side. The fan inside the shell 1 rotates so that the heat generated when the circuit module in the shell 1 is working is discharged through the air outlet mesh port 2, thereby effectively realizing heat dissipation, ensuring the reliable operation of the multiplexing device, and improving the service life. The hidden handle 3 can be conveniently opened when the multiplexing device is installed, which is convenient for moving the multiplexing device. After the installation position is determined, the hidden handle 3 is retracted without affecting normal use. The use is simple and convenient. The display control module 4 is used to display the current results and operating status, and the input and output module 5 is used to connect related power supplies.

[0038] The circuit module includes two DC inputs DC1 and DC2, a DC / DC conversion circuit, a PWM control circuit, a rectifier and filter circuit, and a monitoring interface circuit. The two DCs DC1 and DC2 are input simultaneously and connected to the DC / DC conversion circuit. The PWM control circuit controls the connection to the DC / DC conversion circuit. The rectifier and filter circuit is connected to the output of the DC / DC conversion circuit. The monitoring interface circuit is connected to the PWM control circuit.

[0039] In the present invention, Figure 2 As shown, two direct currents DC1 and DC2 are input simultaneously, and the DC / DC conversion circuit can be controlled by the PWM control circuit to output the optimal voltage value required by the communication equipment during operation, and then output after rectification and filtering, ultimately providing reliable power supply for the equipment. The monitoring interface circuit can monitor the PWM control circuit in order to adjust the setting of the voltage value.

[0040] Specifically, the display control module 4 includes a display panel 41, a backlight switch 42, an indicator light 43, a floating charge / equalizing charge selection switch 44, and a power switch 45. The display panel 41 adopts an LCD display screen and is located on the left front side of the housing 1. The backlight switch 42 is located on the right side of the display panel 41. The indicator light 43 is located on the right side of the backlight switch 42. The floating charge / equalizing charge selection switch 44 is located below the indicator light 43. The power switch 45 is located on the right side of the indicator light 43.

[0041] In the present invention, Figure 3 As shown, the display panel 41 adopts an LCD display screen to display the output voltage and current values, so that the output results can be observed intuitively. The backlight switch 42 is used to control whether the backlight of the display panel 41 is turned on, which can meet the requirements of clearly obtaining the detection results under the scorching sun environment and is suitable for different working scenes. The equalization charge and floating charge adjustment selection switch 44 is used to select different charging methods.

[0042] Specifically, the input-output module 5 includes a first input interface 51, a second input interface 52, an output interface 53, a dip switch 54, and a connection terminal 55. The first input interface 51 is located in the middle position of the rear of the shell 1, the second input interface 52 is located on the right side of the first input interface 51, the output interface 53 is located on the right side of the rear of the shell 1 and on the right side of the second input interface 52, the dip switch 54 is located on the upper left side of the rear of the shell 1, and the connection terminal 55 is located below the dip switch 54.

[0043] In the present invention, Figure 4 As shown, the multiplexing device rationally utilizes three sets of power supplies to ensure two power supplies for the communication transmission equipment. The first input interface 51 and the second input interface 52 are respectively connected to two sets of integrated power supply communication outputs, and the output interface 53 is used to connect to one power input of the transmission equipment. The output of the independent communication power supply is used to connect to another power input of the transmission equipment, thereby realizing stable power supply of three sets of DC power supplies, high resource utilization, safety and reliability.

[0044] Specifically, a groove 11 is formed on the front surface of the housing 1 , and the hidden handle 3 is rotatably connected in the groove 11 .

[0045] In the present invention, Figure 5 As shown, the hidden handle 3 is hidden by the groove 11, and is pulled out for easy position adjustment during use, and is put back into the groove 11 after use. The whole process is achieved by rotation, which is simple to operate, convenient and practical.

[0046] Specifically, cabinet hanging ears 12 are installed on the left and right sides of the front surface of the housing 1 , and fixing holes 121 are opened on the cabinet hanging ears 12 .

[0047] Specifically, the housing 1 is made of iron material and is painted.

[0048] In the present invention, Figure 1 As shown, the cabinet mounting ear 12 facilitates the installation of the device directly on the panel cabinet in the station. The installation and construction are simple and no special training is required. Any personnel can easily complete the operation. At the same time, the outer shell is made of iron spray paint, which is sturdy and durable, ensuring the reliable power supply of the equipment in the station and saving manpower and material resources for multiple emergency repairs. The overall structure is simple, economical and practical.

[0049] Specifically, the first input interface 51, the second input interface 52, and the output interface 53 are connected by binding posts, and transparent dust covers are rotatably connected on the top of the binding posts.

[0050] In the present invention, a transparent dust cover is used to protect the connecting wires of the first input interface 51, the second input interface 52, and the output interface 53. It is opened during wiring and closed for protection after completion. The wiring posts are used to ensure the reliability of the wiring results. The operation is simple and easy.

[0051] Specifically, the dip switch 54 is in the form of five digits, wherein the first digit is an invalid switch, and the following four digits are in the form of binary code, corresponding to 16 communication addresses.

[0052] Specifically, the wiring terminal 55 is a 9-pin wiring terminal, which corresponds to RS485 communication, fault dry contact, and current sharing interface respectively. The fault dry contact includes a common terminal, a battery voltage fault, an internal over-temperature fault, an output voltage fault, and an output abnormal fault.

[0053] In the present invention, when the multiplexing device needs to be remotely tested through the network management system, the corresponding communication port is connected to the wiring terminal 55, and the corresponding communication address is selected by adjusting the DIP switch according to the protocol between the systems.

[0054] Specifically, the indicator light 43 includes an operation indicator light 431, a fault indicator light 432, an equalization charge adjustment 433, and a floating charge adjustment 434;

[0055] The operation indicator light 431 lights up when the machine is operating normally and there is voltage output;

[0056] The fault indicator light 432 lights up when the machine has an overvoltage or undervoltage fault;

[0057] The equalization charge adjustment 433 can change the equalization charge voltage value of the battery by this machine;

[0058] The float charge regulation 434 can change the float charge voltage value of the battery by the machine.

[0059] In the present invention, different operating states of the device are displayed by different indicator lights 43, which enables intuitive adjustment and observation, and selection of the most appropriate method.

[0060] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

[0061] Many other changes and modifications may be made without departing from the concept and scope of the present invention.It should be understood that the present invention is not limited to the specific embodiments, and the scope of the present invention is defined by the appended claims.

Claims

1. A multiplexing device for combining the operation of an integrated power supply and a communication power supply, characterized in that: The invention comprises a housing (1), an air outlet mesh port (2), an air inlet, a hidden handle (3), a fan, a circuit module, a display control module (4), and an input / output module (5); the housing (1) is provided with an air outlet mesh port (2) on the right side thereof and an air inlet on the left side thereof; the circuit module is fixedly mounted inside the housing (1); the fan is mounted on a side close to the air inlet and is located inside the housing (1); there are two hidden handles (3), which are respectively mounted on the left and right edges of the front of the housing (1); the display control module (4) is located between the two hidden handles (3); and the input / output module (5) is located behind the housing (1); The circuit module includes two DC inputs DC1 and DC2, a DC / DC conversion circuit, a PWM control circuit, a rectifier and filter circuit, and a monitoring interface circuit. The two DCs DC1 and DC2 are input simultaneously and connected to the DC / DC conversion circuit. The PWM control circuit controls the connection to the DC / DC conversion circuit. The rectifier and filter circuit is connected to the output of the DC / DC conversion circuit. The monitoring interface circuit is connected to the PWM control circuit.

2. The multiplexing device for combining the integrated power supply and the communication power supply according to claim 1 is characterized in that: The display control module (4) comprises a display panel (41), a backlight switch (42), an indicator light (43), a floating charge / equalizing charge selection switch (44), and a power switch (45); the display panel (41) is an LCD display screen and is located on the left front side of the housing (1); the backlight switch (42) is located on the right side of the display panel (41); the indicator light (43) is located on the right side of the backlight switch (42); the floating charge / equalizing charge selection switch (44) is located below the indicator light (43); and the power switch (45) is located on the right side of the indicator light (43).

3. The multiplexing device for combining the integrated power supply and the communication power supply according to claim 1 is characterized in that: The input-output module (5) comprises a first input interface (51), a second input interface (52), an output interface (53), a dip switch (54), and a connection terminal (55); the first input interface (51) is located at the middle position of the rear of the housing (1); the second input interface (52) is located at the right side of the first input interface (51); the output interface (53) is located at the right side of the rear of the housing (1) and at the right side of the second input interface (52); the dip switch (54) is located at the upper left position of the rear of the housing (1); and the connection terminal (55) is located below the dip switch (54).

4. The multiplexing device for combining the integrated power supply and the communication power supply according to claim 1 is characterized in that: The front surface of the housing (1) is provided with a groove (11), and the hidden handle (3) is rotatably connected in the groove (11).

5. The multiplexing device for combining the integrated power supply and the communication power supply according to claim 1, characterized in that: Cabinet hanging ears (12) are installed on the left and right sides of the front surface of the shell (1), and the cabinet hanging ears (12) are provided with fixing holes (121).

6. The multiplexing device for combining the integrated power supply and the communication power supply according to claim 3 is characterized in that: The first input interface (51), the second input interface (52) and the output interface (53) adopt terminal blocks, and transparent dust covers are rotatably connected on the top of the terminals.

7. The multiplexing device for combining the operation of an integrated power supply and a communication power supply according to claim 3, characterized in that: The dip switch (54) is in the form of five digits, wherein the first digit is an invalid switch, and the following four digits are in the form of binary code, corresponding to 16 communication addresses.

8. The multiplexing device for combining the integrated power supply and the communication power supply according to claim 3 is characterized in that: The wiring terminal (55) is a 9-pin wiring terminal, which respectively corresponds to RS485 communication, a fault dry contact, and a current sharing interface. The fault dry contact includes a common terminal, a battery voltage fault, an internal over-temperature fault, an output voltage fault, and an output abnormality fault.

9. The multiplexing device for combining the operation of an integrated power supply and a communication power supply according to claim 2, characterized in that: The indicator lights (43) include an operation indicator light (431), a fault indicator light (432), an equalizing charge adjustment (433), and a floating charge adjustment (434); The operation indicator light (431) lights up when the machine is operating normally and there is voltage output; The fault indicator light (432) lights up when an overvoltage or undervoltage fault occurs in the machine; The equalizing charge adjustment (433) can change the equalizing charge voltage value of the battery by the machine; The floating charge regulation (434) can change the floating charge voltage value of the battery by the machine.

10. The multiplexing device for combining the operation of an integrated power supply and a communication power supply according to claim 1, characterized in that: The shell (1) is made of iron material and is spray-painted.

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