CN216134097U - Intelligent switch module for intelligent power distribution unit - Google Patents

Abstract

The utility model provides an intelligent switch module for an intelligent power distribution unit, which comprises an input terminal and an output terminal, wherein the input terminal is externally connected with a direct current power supply, and the output terminal is externally connected with a direct current load; the transverse width of the switch module is n x W, wherein W is a unit width, and n is a positive integer. The transverse width of the switch module is an integral multiple of W, so that n switch modules with the transverse width of 1 x W can be replaced by one switch module with the transverse width of n x W, and the power supply control of large-current equipment is met; and replacing one switch module with the transverse width of n W with n switch modules with the transverse width of 1W, thereby adding more output control branches. The flexible and variable power distribution requirements of customers are met through the compatible design.

Description

Intelligent switch module for intelligent power distribution unit

Technical Field

The utility model belongs to the technical field of electrical control, and particularly relates to an intelligent switch module for an intelligent power distribution unit.

Background

In a communication power supply system, the aim of continuously pursuing system layout is to realize more output control ends by using smaller space, so that the use requirements of users can be met to the maximum extent, and the spaces of the system and a machine room can be occupied as little as possible.

The power distribution unit is a base station power supply device and can be used as a base station switch power supply battery connection port and direct current output power distribution. A plurality of switch modules are fixedly arranged on one set of power distribution unit, the current capacity of each switch module is determined when the switch modules leave a factory, the power loads of different base stations are different along with the diversification of application scenes, and the existing power distribution unit cannot meet the diversified power distribution requirements.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problems in the prior art, and the utility model aims to provide an intelligent switch module for an intelligent power distribution unit.

In order to achieve the purpose, the utility model adopts the following technical scheme: an intelligent switch module for an intelligent power distribution unit comprises an input terminal and an output terminal, wherein the input terminal is externally connected with a direct current power supply, and the output terminal is externally connected with a direct current load; the lateral width of the switch module is n x W, wherein W is a unit width, n is a positive integer, and the switch modules with different lateral widths have different current capacities.

In the above technical solution, since the transverse width of the switch module is an integral multiple of W, n switch modules with transverse width of 1 × W can be replaced by one switch module with transverse width of n × W, so as to satisfy power supply control of the large-current device; and replacing one switch module with the transverse width of n W with n switch modules with the transverse width of 1W, thereby adding more output control branches. The flexible and variable power distribution requirements of customers are met through the compatible design.

In a preferred embodiment of the present invention, the switch module has latches on the outer side thereof, the number of the latches on each side surface of the switch module with the transverse width n × W is n, and when the number of the latches on one side surface of one switch module is greater than or equal to two, the distance between the centers of two adjacent latches on the same side surface of the switch module is 1 × W.

Among the above-mentioned technical scheme, switch module passes through the mode joint of buckle and draw-in groove with the installation box and fixes, the installation and the dismantlement of the switch module of being convenient for. A buckle is arranged on one transverse width of the same side face of the switch module, and the number of the buckles and the clamping grooves is matched with the transverse width, so that the switch modules with different transverse widths can be replaced conveniently; and the wider the lateral width of the switch module, the more the fasteners are arranged, so that the connection between the switch module and the installation box body is firmer.

In a preferred embodiment of the present invention, each of the switch modules has a socket slot penetrating in a transverse width direction thereof, and the input terminal is a conductive strip provided on an inner wall of the socket slot.

In the technical scheme, the insertion groove penetrates through the transverse width of the switch module, and the switch module is inserted into the conductive bus bar through the insertion groove, so that the switch module is convenient to disassemble and assemble; and the input terminal is a conducting strip arranged on the inner wall of the inserting groove, when the switch module is inserted on the conductive bus bar, the switch module can be electrically connected with the conductive bus bar, and the operation is simple.

In a preferred embodiment of the present invention, the conductive sheet is a conductive elastic sheet, or the conductive sheet is elastically connected to the switch module through a spring.

Among the above-mentioned technical scheme, make conducting strip and the female electric connection of arranging of electrically conducting through elastic force, the electricity is connected reliably, and this elastic force also makes switch module and the female connection of arranging of electrically conducting more firm moreover.

In a preferred embodiment of the utility model, at least one control switch is arranged on the switch module; and/or the switch module further comprises an overcurrent protection unit.

In the above technical scheme, the switch module realizes the power-on and power-off of the external direct current load by controlling the switch. The overcurrent protection unit carries out overcurrent protection on the switch module, and avoids damaging devices on an electric loop where the switch module is located when a load is overloaded or short-circuited.

In a further preferred embodiment of the utility model, the control switch comprises a switch connected in series in the connection path of the input terminal and the output terminal, the switch having a manual control terminal and an electric control terminal, the electric control terminal being connected to the output of the control unit.

In the technical scheme, only one switching element is used, the power-on and power-off of the external direct current load can be controlled manually and electrically, the structure is simple, and the cost is reduced.

In another preferred embodiment of the present invention, the control unit comprises one or more signal receiving units, and the output end of the signal receiving unit is connected with the electric control end of the switch; the signal receiving unit is an optical signal receiving unit, or a triggering unit for receiving an output signal of an external sensor, or a wireless communication signal receiving module, or a wired communication signal receiving module; the signal receiving unit comprises a processor, a triggering unit and/or a communication signal receiving module for receiving an output signal of the external sensor, a first input end of the processor is connected with an output end of the triggering unit, a second input end of the processor is connected with an output end of the wired communication signal receiving module, an input end of the wired communication signal receiving module is connected with a far-end console in a wired communication mode, and a first output end of the processor is connected with an electric control end of the switch respectively.

In the technical scheme, the switch is controlled to be switched on and off by the external signal received by the signal receiving unit, the circuit structure is simple, and the cost is low.

In another preferred embodiment of the utility model, the switch module further comprises an electrical parameter measuring unit, and a display unit and/or a storage unit; the output end of the electrical parameter measuring unit is connected with the input end of the display unit and/or the storage unit.

In the technical scheme, the power utilization condition of the external load of each switch module is monitored through the electric parameter measuring unit, so that the power utilization management and control are facilitated; the power utilization condition of each switch channel externally connected with a direct current load can be visually observed through the display unit; the power utilization information of the external direct current load is stored through the storage unit, and the query of workers is facilitated.

In another preferred embodiment of the present invention, the switching module includes a relay and a driving circuit; the driving circuit is arranged in a power supply loop of the relay coil, a power supply end of the driving circuit is connected with a power supply end, an output end of the driving circuit is connected with a power supply end of the coil, and a control end of the driving circuit is connected with an output end of the control unit; the contacts of the relay are connected in series in the connection path of the input terminal and the output terminal.

In the above technical solution, a hardware structure of a switch module is disclosed, which can effectively and safely control the power-on or power-off of a driving circuit to an external dc load through a weak current signal.

In another preferred embodiment of the present invention, the switch module further includes an overvoltage protection unit disposed at an input terminal of the DC/DC power supply circuit; and/or a lightning protector is provided, and all or part of the input terminal, the output terminal, the input end of the DC/DC power supply circuit and the output end of the DC/DC power supply circuit are connected with the ground through the lightning protector.

Among the above-mentioned technical scheme, can protect switch module's power supply through setting up the overvoltage protection unit, avoid DC/DC power supply circuit's input too high voltage damage DC/DC power supply circuit, and then make the unable phenomenon of work of switch module. Through setting up the lightning protection device for switch module has the lightning protection effect, avoids thunderbolt to damage or the trouble, has improved security and the reliability of using at communication base station.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is an external configuration diagram of a power distribution unit according to a first embodiment.

Fig. 2 is a schematic diagram of the internal structure of the power distribution unit according to the first embodiment without the upper case of the outer case.

FIG. 3 is a schematic structural diagram of the mounting box of the first embodiment after the upper shell of the outer shell is exploded.

Fig. 4 is a schematic structural diagram of a switch module in the first embodiment.

Fig. 5 is another schematic structural diagram of the switch module in the first embodiment.

Fig. 6 is a schematic perspective view of an input connector according to the first embodiment.

Fig. 7 is a schematic side view of an input connector according to the first embodiment.

Fig. 8 is a schematic perspective view of an input connector according to a second embodiment.

Fig. 9 is a schematic side view of the input connector according to the second embodiment.

Reference numerals in the drawings of the specification include: the installation box body 10, the shell 11, the card slot 111, the input connector 12, the power supply connecting part 121, the third stepped surface 121a, the fourth stepped surface 121b, the output connecting part 122, the first stepped surface 122a, the second stepped surface 122b, the bus connecting terminal 123, the bus connecting terminal 124, the conductive bus 13, the grounding lug 14, the connecting lug 15, the M8 nylon insulation isolating column 16, the switch module 20a with the transverse width of 1W, the switch module 20b with the transverse width of 2W, the plug-in slot 21, the conductive sheet 22 and the buckle 23.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "vertical", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be interpreted broadly, and may be, for example, a mechanical connection or an electrical connection, a communication between two elements, a direct connection, or an indirect connection via an intermediate medium, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.

Example one

The present embodiment provides a power distribution unit, as shown in fig. 1, which in a preferred embodiment includes a mounting enclosure 10, and a number of switch modules 20, each switch module 20 being electrically connected to the mounting enclosure 10.

The installation box body 10 is provided with a horizontal installation cavity, the horizontal width of the installation cavity is an integral multiple of W, wherein W is a unit width, and the plurality of switch modules 20 are arranged in the installation cavity side by side along the horizontal width direction and are detachably and fixedly connected with the installation box body 10.

The ith switch module 20 has a lateral width n_iW, wherein n_iI is a positive integer, and is a serial number of the switch module 20, for example, a first switch module and a second switch module are sequentially arranged from left to right in fig. 1. The lateral width of the switch module 20 may be 1 × W, 2 × W, 3 × W, etc. As shown in fig. 4, the switch module 20a having a lateral width of 1 × W and as shown in fig. 5, the switch module 20b having a lateral width of 2 × W has a positive correlation between the lateral width of the switch module 20 and the current capacity thereof, that is, the switch modules 20 having the same lateral width have the same current capacity, the switch modules 20 having different lateral widths have different current capacities, and the larger the lateral width of the switch module 20 is, the larger the current capacity thereof is. Such as the 63A switch module shown in fig. 4, and the 125A switch module shown in fig. 5; for another example, fig. 4 shows a switch module of 32A, and fig. 5 shows a switch module of 63A.

In the present embodiment, the lateral width of the mounting cavity is 18 × W (i.e. 18 unit widths), and the first and second switch modules 20a with the lateral width of 1 × W and the third to sixteenth switch modules 20a with the lateral width of 1 × W are shown from left to right in fig. 1.

The two switch modules 20a with the transverse width of 1W can be replaced by one switch module 20b with the transverse width of 2W, so that the power supply control of high-current equipment is met; one switch module 20b of lateral width 2W may be replaced with two switch modules 20a of lateral width 1W, thereby adding more output control branches. The flexible and variable power distribution requirements of customers are met through the compatible design.

It should be noted that, in this embodiment, only the lateral widths of the switch modules 20 are 1 × W and 2 × W, in practice, the lateral width of the switch module 20 may also be 3 × W or wider, and when the lateral width of the switch module 20 is 3 × W, one switch module with a lateral width of 3 × W may replace three switch modules with a lateral width of 1 × W, so as to satisfy the power supply control of the higher current device.

As shown in fig. 2 and 3, in another preferred embodiment, the installation box 10 includes a housing 11, an input connector 12 fixedly connected to the housing 11 and capable of being connected to an external power source, and a conductive busbar 13 fixedly disposed inside the housing 11, where the conductive busbar 13 is a copper bar made of copper. In order to facilitate the installation of the installation case 10, the housing 11 is composed of two parts, an upper case and a lower case. The shell 11 is fixedly connected with a grounding lug 14 and a connecting lug 15, for example, the grounding lug 14 is arranged on the right side of the shell 11, the connecting lug 15 is arranged on the left side of the shell 11, and the power distribution unit can be fixedly connected with an external fixing frame through the connecting lug 15.

The input connector 12 is disposed on the left side of the first switch module 20 on the left side, and the input connector 12 has a power supply connection portion 121 exposed outside the housing 11 and an output connection portion 122 hidden inside the housing 11, i.e., the power supply connection portion 121 is located on the front side of the output connection portion 122. The power supply connection portion 121 of the input connector 12 has a bus bar connection terminal 123 electrically connected to an external power supply, the output connection portion 122 of the input connector 12 has a bus bar connection terminal 124 electrically connected to the conductive bus bar 13, and all the switch modules 20 can be electrically connected to the conductive bus bar 13, that is, the external power supply supplies power to each switch module 20 through the input connector 12 and the conductive bus bar 13.

In another preferred embodiment, the number of the conductive busbars 13 is two, one of the two conductive busbars 13 is connected to the positive electrode of the external power supply and is a 48V busbar, and the other is connected to the negative electrode of the external power supply and is a 0V busbar. The two conductive busbars 13 are arranged in parallel, for example, the two conductive busbars 13 are arranged in parallel one on top of the other, the two conductive busbars 13 are supported and isolated by the M8 nylon insulation isolation column 16, the two conductive busbars 13 are respectively electrically connected with the busbar connection terminal 124 of the input connector 12, and each switch module 20 is simultaneously electrically connected with the two conductive busbars 13 to form a power supply loop.

As shown in fig. 6 and 7, in another preferred embodiment, the output connecting portion 122 of the input connector 12 has a first step surface 122a and a second step surface 122b which are arranged in a stepped manner, the first step surface 122a and the second step surface 122b are located on the same side of the output connecting portion 122, for example, the first step surface 122a and the second step surface 122b are arranged upward or downward at the same time, preferably, the first step surface 122a and the second step surface 122b are both arranged upward, and the first step surface 122a is located above the second step surface 122 b. The first step surface 122a and the second step surface 122b are respectively provided with a busbar terminal 124, for example, each busbar terminal 124 is provided, the busbar terminal 124 on one of the first step surface 122a and the second step surface 122b is a positive terminal, and the other is a negative terminal. In the present embodiment, the first stepped surface 122a and the second stepped surface 122b may be provided in a right-and-left regular step shape or in a front-and-rear direction step shape, and preferably, the first stepped surface 122a and the second stepped surface 122b are provided in a step shape in the front-and-rear direction of the output connecting portion 122.

When the conductive busbar 13 is connected with the input connector 12, one end of the upper conductive busbar 13 is lapped on the first step surface 122a and is pressed by a bolt of the busbar wiring terminal 124 on the first step surface 122a to realize electrical connection; one end of the lower conductive busbar 13 is lapped on the second step surface 122b and is pressed by the bolt of the busbar wiring terminal 124 on the second step surface 122b, so that the electrical connection is realized.

In another embodiment, both sides of the power supply connection part 121 of the input terminal 12 have bus bar connection terminals 123, the two sides being opposite sides of the power supply connection part 121 or two sides adjacent to the power supply connection part 121, preferably, the bus bar connection terminals 123 are provided at the top and bottom of the power supply connection part, and the bus bar connection terminal 123 on one of the top and bottom of the power supply connection part 121 is a positive electrode connection terminal and the other is a negative electrode connection terminal.

In the present embodiment, the top of the power supply connection portion 121 has two bus bar connection terminals 123 spaced apart in the front-rear direction, and the bottom of the power supply connection portion 121 also has two bus bar connection terminals 123 spaced apart in the front-rear direction.

The transverse width of the input joint 12 of the embodiment is 33mm, the space occupied by the input joint 12 is very small, and the requirement of 300A large-current wiring of positive and negative electrodes of a bus wiring terminal 123 is met; and the positive and negative wiring of the bus wiring terminal 123 is positioned on the upper and lower surfaces of the input connector 12, and can accommodate the wiring cold-pressed terminal of the large-wire-diameter cable under the spatial height of IU, so that the current-carrying capacity input of 300A is met.

As shown in fig. 4 and 5, in another preferred embodiment, each of the switch modules 20 has a plug slot 21 penetrating along a transverse width direction thereof, a rear end of the plug slot 21 is open, a conductive plate 22 is disposed on an inner wall of the plug slot 21, and the switch module 20 can be plugged into the conductive bus bar 13 through the plug slot 21 and electrically contact the conductive plate 22 with the conductive bus bar 13. The conductive sheet 22 is a conductive elastic sheet, or the conductive sheet 22 is elastically connected to the switch module 20 through a spring.

In this embodiment, the number of the inserting grooves 21 of each switch module 20 is two, the distance between the two inserting grooves 21 is equal to the distance between the two conductive busbars 13, and the switch module 20 is electrically connected to the two conductive busbars 13 through the two inserting grooves 21.

As shown in fig. 1, 4 and 5, in another preferred embodiment, the top and bottom of the housing 11 of the installation box 10 are provided with a plurality of slots 111 equally spaced in the transverse width direction thereof, the top and bottom of the switch module 20 are provided with buckles 23 corresponding to the slots 111, and the buckles 23 are elastic buckles or are connected with the switch module 20 through springs. Switch module 20 is through inserting groove 21 and two electrically conductive female 13 plug-in connections of arranging, simultaneously through buckle 23 and draw-in groove 111 joint on the shell 11 for switch module 20 is more firm with the fixed of installation box 10, adopts the mode of joint and grafting to be convenient for switch module 20's installation and dismantlement moreover.

In another preferred embodiment, the center distance between two adjacent card slots 111 on the top or bottom of the housing 11 is 1 × W, that is, one card slot 111 is provided per unit width, and the transverse width of the mounting cavity of fig. 1 is 18 × W, so that 18 card slots 111 are provided on the top and bottom of the housing 11. The buckles 23 on the switch module 20 are arranged corresponding to the slots 111, that is, the number of the buckles at the top and the bottom of the switch module with the transverse width of n × W is n, and when the number of the buckles 23 on one side surface of one switch module 20 is greater than or equal to two, the center distance between two adjacent buckles 23 on the switch module 20 is 1 × W. For example, the switch module 20 shown in fig. 4 has a transverse width of 1 × W, and the top and the bottom are respectively provided with a buckle 23; for another example, the switch module 20 of fig. 5 has a lateral width of 2 × W, two latches 23 are respectively disposed at the top and the bottom, and the distance between the centers of two adjacent latches 23 at the top or the bottom is 1 × W.

Example two

The principle of the present embodiment is basically the same as that of the first embodiment, except that the power supply connection portion 121 of the input connector 12 has a different structure. As shown in fig. 8 and 9, in the present embodiment, the power supply connection portion 121 of the input terminal 12 has a third step surface 121a and a fourth step surface 121b which are arranged in a stepped manner, the third step surface 121a and the fourth step surface 121b are located on the same side of the power supply connection portion 121, the third step surface 121a and the fourth step surface 121b are simultaneously arranged upward, simultaneously downward, simultaneously leftward or simultaneously rightward, preferably, both the third step surface 121a and the fourth step surface 121b are arranged upward, and the third step surface 121a is located above the fourth step surface 121 b. The third step surface 121a and the fourth step surface 121b are both provided with bus bar connection terminals 123, for example, one bus bar connection terminal 123 is provided, the bus bar connection terminal 123 on one of the third step surface 121a and the fourth step surface 121b is a positive electrode connection terminal, and the other is a negative electrode connection terminal.

In this embodiment, the third step surface 121a and the fourth step surface 121b may be arranged in a right and left regular step, in an up and down step, or in a front and rear step, and preferably, the third step surface 121a and the fourth step surface 121b are arranged in a step in a front and rear direction of the power supply connection portion 121.

The transverse width of the input connector 12 of the embodiment is 33mm, the space occupied by the input connector 12 is small, and the cold-pressed terminal for wiring of a cable with a large wire diameter can be accommodated under the space height of IU, so that the wiring of an installer is facilitated; and the positive and negative wiring of the bus wiring terminal 123 is located at the same side of the input connector 12, the positive and negative electrodes ensure electrical safety spacing through front and back staggered layers, a large-wire-diameter cable can be accommodated, and each electrode supports the current-carrying capacity of 300A large current.

It should be noted that the circuit structure of the switch module 20 of the present invention may adopt the prior art, or adopt the following structure, specifically, the switch module includes an input terminal and an output terminal, the input terminal (i.e. the conducting strip 22 in the plug slot) is externally connected with a dc power supply (i.e. the conducting bus 13), the output terminal is externally connected with a dc load, and the switch module is provided with at least one control switch.

In the present embodiment, the control switch may select a manual switch, or select an electric control switch, or select a combination of a manual switch and an electric control switch. Preferably, arc extinguishing devices are connected in parallel at two ends of the control switch, and the arc extinguishing devices are preferably, but not limited to, existing arc extinguishing products, such as a DM-2 type direct current arc extinguisher manufactured by great company of hawaikang electronic technologies, a composite PTC thermistor manufactured by wakeman technologies, and the like, or an RC arc extinguishing circuit is selected and connected in series through a resistor and a capacitor, and the series circuit is connected in parallel at two ends of the control switch.

In a preferred embodiment, the control switch comprises a switch connected in series in the connection path of the input terminal and the output terminal, the switch having a manual control terminal and an electric control terminal, the electric control terminal being connected to the output of the control unit. The control unit comprises one or more signal receiving units, and the output end of each signal receiving unit is connected with the electric control end of the switch.

The utility model can adopt a bus input-shunt output structure, and a plurality of power distribution units can be cascaded, and the number of the power distribution units is selected according to the number of the power loads, thereby meeting the requirements of different users. In addition, the switch modules are provided with independently controlled switches, so that the on-off time of the switches can be accurately controlled, the direct current shunt and household (group) metering are realized, the electricity preparation and power generation management is differentiated, the rental management and the duty-free time interval management are accurately realized, and the energy-saving management function of the shunt (cell) is turned off hard.

The switch module can be flexibly set according to an application scene, and supports the functions of shunt switch capacity customization, shunt and grouping user customization, and in the embodiment, the control of shunt and grouping users can be realized by using the active loop monitoring system FSU, for example, the 4G full-network wireless data transmission networking function (micro-station type FSU) is adopted.

In a preferred embodiment, the signal receiving unit is an optical signal receiving unit, or a triggering unit for receiving an output signal of an external sensor, or a wireless communication signal receiving module, or a wired communication signal receiving module. Specifically, the signal receiving unit comprises a processor, and a triggering unit and/or a wired communication signal receiving module for receiving the output signal of the external sensor. The first input end of the processor is connected with the output end of the trigger unit, the second input end of the processor is connected with the output end of the wired communication signal receiving module, and the input end of the wired communication signal receiving module is connected with the far-end console in a wired communication mode. The first output end of the processor is respectively connected with the electric control end of the switch.

In another preferred embodiment, the switch module further comprises an overcurrent protection unit. Specifically, each switch module may be connected to an overcurrent protection unit, and the overcurrent protection unit is preferably, but not limited to, a self-recovery Fuse, that is, a positive temperature coefficient thermistor (PTC Resettable Fuse), and the self-recovery Fuse may be connected in series at any position of the connection path between the input terminal and the output terminal. When the current of the switch channel is normal, the self-recovery fuse is in a normal state, the resistance value is very small, and the normal work of the switch channel is not influenced. The self-healing fuse is preferably, but not limited to, a product selected as model number FSMD 1812.

In a further preferred embodiment, the switching module further comprises an electrical parameter measuring unit, and a display unit and/or a memory unit; the output end of the electrical parameter measuring unit is connected with the input end of the display unit and/or the storage unit.

In the present embodiment, the electrical parameter measuring unit preferably includes, but is not limited to, a direct current electric energy meter, a power meter, a voltage meter, an ammeter, and the like. The direct current electric energy meter, the power meter, the voltmeter and the ammeter can all select the existing products, of course, the voltmeter can also be a resistance voltage division network, one end of the resistance voltage division network is connected with the output terminal, the other end of the resistance voltage division network is connected with the ground, and the output end of the resistance voltage division network is connected with a rear-stage circuit (such as a display unit, a processor and the like). The ammeter may be a current transformer. The display unit is preferably, but not limited to, an LCD display module or an LED display module, etc. for displaying electrical parameters of each channel, such as current, voltage, power or electricity, etc.

In another preferred embodiment, the switching module comprises a relay and a drive circuit; the driving circuit is arranged in a power supply loop of the relay coil, a power supply end of the driving circuit is connected with a power supply end, an output end of the driving circuit is connected with a power supply end of the coil, and a control end of the driving circuit is connected with an output end of the control unit; the contacts of the relay are connected in series in the connection path of the input terminal and the output terminal.

In this embodiment, the driving circuit is preferably, but not limited to, a triode driving circuit, a MOS transistor driving circuit, or the like. Preferably, the output end of the control unit may be an output end of the signal receiving unit, and specifically may be an output end of the optical signal receiving unit, an output end of the triggering unit, a first output end of the processor, and the like.

In another preferred embodiment, the switch module further comprises an overvoltage protection unit disposed at an input terminal of the DC/DC power supply circuit; and/or a lightning protector is provided, and all or part of the input terminal, the output terminal, the input end of the DC/DC power supply circuit and the output end of the DC/DC power supply circuit are connected with the ground through the lightning protector.

In this embodiment, the overvoltage protection unit is preferably, but not limited to, a voltage dependent resistor or a TVS diode, a first terminal of the voltage dependent resistor or the TVS diode is connected to an input terminal of the DC/DC power circuit, and a second terminal of the voltage dependent resistor or the TVS diode is connected to ground, and the overvoltage protection unit also has a certain lightning protection function.

In this embodiment, the lightning protection device at the input end of the DC/DC power circuit is preferably, but not limited to, the NKP-DY-iii L-D48 lightning protection device product of kojia electric company, the lightning protection device at the output end of the DC/DC power circuit is preferably, but not limited to, the NKP-DY-IIIL-D12 lightning protection device product of kojia electric company, and the lightning protection device at the input terminal and the output terminal is preferably, but not limited to, the KDY-40-D48 lightning protection device product of kojia electric company.

In this embodiment, the lightning protection device may also be an existing dc lightning protection circuit, and the specific circuit structure may adopt the existing technology.

It should be noted that the installation box 10 of the present application further includes a monitoring unit, a data transmission unit, an antenna, and a signal converging unit. The signal output ends of the switch modules 20 are respectively connected with the corresponding signal convergence units, and the signals collected by the switch modules 20 are transmitted to the monitoring unit. The data transmission unit is respectively connected with the monitoring unit and the antenna, data received by the monitoring unit are transmitted to the FSU and/or the remote monitoring platform through the antenna, and control of shunting and grouping users is achieved through on-off of the control switch. The installation box 10 of this application still is provided with and pulls out to insert binding post, utilizes to pull out to insert binding post and realizes the wired transmission of data. In addition, the installation box 10 is further provided with a direct current lightning protection unit. The monitoring unit, the data transmission unit, the antenna, the signal convergence unit and the direct current lightning protection unit can adopt the prior art, are not innovation points of the application and are not detailed in the application.

In the description herein, reference to the description of the terms "preferred embodiment," "one embodiment," "some embodiments," "an example," "a specific example" or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. An intelligent switch module for an intelligent power distribution unit is characterized in that the switch module comprises an input terminal and an output terminal, wherein the input terminal is externally connected with a direct current power supply, and the output terminal is externally connected with a direct current load;

the lateral width of the switch module is n x W, wherein W is a unit width, n is a positive integer, and the switch modules with different lateral widths have different current capacities.

2. An intelligent switch module for an intelligent power distribution unit according to claim 1, wherein the switch module has latches on the outside, the number of latches on each side of the switch module with a lateral width of n x W is n, and when the number of latches on one side of a switch module is two or more, the distance between the centers of two adjacent latches on the same side of the switch module is 1 x W.

3. An intelligent switch module for an intelligent power distribution unit according to claim 1 or 2, wherein the switch modules each have a plug slot extending therethrough in a transverse width direction thereof, and the input terminals are conductive strips provided on an inner wall of the plug slot.

4. The intelligent switch module of claim 3, wherein the conductive sheet is a conductive elastic sheet, or the conductive sheet is elastically connected to the switch module through a spring.

5. An intelligent switch module for an intelligent power distribution unit according to claim 1 or 2, wherein at least one control switch is provided on the intelligent switch module;

and/or the switch module further comprises an overcurrent protection unit.

6. An intelligent switch module for an intelligent power distribution unit according to claim 5, wherein the control switch comprises a switch connected in series in the connection path of the input and output terminals, the switch having a manual control terminal and an electric control terminal, the electric control terminal being connected to the output terminal of the control unit.

7. An intelligent switch module for an intelligent power distribution unit according to claim 6, wherein the control unit comprises one or more signal receiving units, and the output end of the signal receiving unit is connected with the electric control end of the switch;

the signal receiving unit is an optical signal receiving unit, or a triggering unit for receiving an output signal of an external sensor, or a wireless communication signal receiving module, or a wired communication signal receiving module;

the signal receiving unit comprises a processor and a trigger unit and/or a communication signal receiving module for receiving an output signal of an external sensor, a first input end of the processor is connected with an output end of the trigger unit, a second input end of the processor is connected with an output end of the wired communication signal receiving module, an input end of the wired communication signal receiving module is connected with a far-end console in wired communication, and a first output end of the processor is connected with an electric control end of the switch respectively.

8. An intelligent switching module for an intelligent power distribution unit according to claim 1 or 2, wherein the switching module further comprises an electrical parameter measuring unit, and a display unit and/or a storage unit;

the output end of the electrical parameter measuring unit is connected with the input end of the display unit and/or the storage unit.

9. An intelligent switching module for an intelligent power distribution unit according to claim 1 or 2, wherein the switching module comprises a relay and a drive circuit;

the driving circuit is arranged in a power supply loop of the relay coil, a power supply end of the driving circuit is connected with a power supply end, an output end of the driving circuit is connected with a power supply end of the coil, and a control end of the driving circuit is connected with an output end of the control unit;

the contacts of the relay are connected in series in the connecting path of the input terminal and the output terminal.

10. An intelligent switch module for an intelligent power distribution unit according to claim 1 or 2, wherein the switch module further comprises an overvoltage protection unit provided at an input of the DC/DC power circuit;

and/or a lightning protector is provided, and all or part of the input terminal, the output terminal, the input end of the DC/DC power supply circuit and the output end of the DC/DC power supply circuit are connected with the ground through the lightning protector.

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