CN101854033B - Power distribution module and power distribution box - Google Patents

Abstract

The embodiment of the present invention discloses a power distribution module and a power distribution box, in which the power distribution module includes a hot-swappable connector with a positive input terminal and a negative input terminal, a positive output terminal connected to the positive input terminal, A negative output terminal connected to the negative input terminal, wherein a protection unit is connected between the positive input terminal and the positive output terminal, or between the negative input terminal and the negative output terminal. In this way, corresponding power distribution modules can be configured according to the requirements of the load equipment, which improves the flexibility of the power distribution box.

Description

A power distribution module and a power distribution box

technical field

The invention relates to the technical field of communications, in particular to a power distribution module and a power distribution box.

Background technique

The DC power supply of the communication equipment cabinet generally adopts the DC power distribution box to realize the functions of external DC power supply access, distribution, protection, etc., and realizes the power supply of the load and the protection of the power supply line. The protection units of the power distribution box mainly include circuit breakers, fuses, electronic switches etc.

The design of the existing power distribution box is mainly composed of three parts: input terminals, protection units, and output terminals. These three parts are connected by cables, copper bars, terminals and other devices to realize functions such as power access, distribution, and protection.

The panel layout of the power distribution box in the prior art is shown in FIG. 1 . In order to realize the maintenance of the power distribution box, input terminals 101 , protection units 102 (ie, fuses or circuit breakers, etc.), and output terminals 103 are all arranged on the panel. The internal structure of the power distribution box in the prior art is shown in Figure 2. The external power line is connected to the internal conductive copper bar 104 through the input terminal 101, and the positive copper bar 1041 distributes multiple power lines to the output terminal 103, and then the output terminal 103 connected to the positive end of each load; the negative copper bar 1042 distributes multiple power lines to the input end of the protection unit 102, and then the output end of the protection unit 102 is connected to the output terminal 103, and the output terminal 103 is connected to the negative terminal. Wherein, the protection unit 102 is connected between the negative copper bar 1042 and the negative end of each load of the output terminal 103 .

In the course of realizing the present invention, the inventor finds that there are at least the following problems in the prior art:

As shown in Figure 1, the number of output terminals set on the panel is fixed. When it is necessary to add load equipment, the existing power distribution box is difficult to meet the requirements of the corresponding load equipment, and the flexibility is relatively poor.

Contents of the invention

Embodiments of the present invention provide a power distribution module and a power distribution box, and corresponding power distribution modules can be configured according to requirements of load devices, thereby improving the flexibility of the power distribution box.

An embodiment of the present invention provides a power distribution module, the power distribution module is a DC power distribution module, and the power distribution module includes a hot-swappable connector with a positive input terminal and a negative input terminal connected to the positive input terminal a positive output terminal connected to the negative input terminal, wherein, between the positive input terminal and the positive output terminal, or between the negative input terminal and the negative output terminal is connected protection unit.

An embodiment of the present invention provides a power distribution box, the power distribution box is a DC power distribution box, including: a power distribution module and a bus bar, the bus bar includes at least one set of bipolar output terminals, and the power distribution module includes a A hot-swappable connector for an input terminal and a negative input terminal, a positive output terminal connected to the positive input terminal, a negative output terminal connected to the negative input terminal, the positive input terminal and the negative input terminal are connected to the bus bar A group of bipolar output terminals are connected, wherein a protection unit is connected between the positive input terminal and the positive output terminal, or between the negative input terminal and the negative output terminal.

It can be seen from the above technical solution that since the power distribution modules are hot-swappable, the number of modules required can be flexibly configured according to the load within the allowable range of the total space. Just add a power distribution module, so that the highly flexible configuration of the power distribution box can be realized.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings without any creative effort.

Fig. 1 is a panel layout diagram of a power distribution box in the prior art;

Fig. 2 is the internal structure diagram of the distribution box in the prior art;

3 is a block diagram of a power distribution module in Embodiment 1;

Fig. 4 is a three-dimensional schematic diagram of a power distribution module in an example of Embodiment 1;

Figure 5 is a schematic diagram of a push-in connector (Q.C) terminal;

6 is a schematic circuit diagram when the protection unit in the power distribution module in Embodiment 1 is an electronic fuse;

7 is a schematic circuit diagram when the protection unit in the power distribution module in Embodiment 1 is a fuse;

Fig. 8 is a schematic diagram of the panel of the power distribution module in the first embodiment;

Fig. 9 is a diagram of the internal structure of the power distribution box in the second embodiment;

Fig. 10 is a schematic diagram of the panel layout of the power distribution box in the second embodiment.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

The power distribution module and the power distribution box of the embodiments of the present invention are applied to a communication power supply system to realize functions such as access, distribution, and protection of an external DC power supply.

The technical solutions in the embodiments of the present invention will be described in detail below with reference to the drawings in the embodiments of the present invention.

Embodiment one

3 shows a block diagram of a power distribution module 200 in this embodiment, the power distribution module 200 includes a hot-swappable connector 203 with a positive input terminal 201 and a negative input terminal 202, and a positive output terminal connected to the positive input terminal 201 204. Connect the negative output terminal 205 of the negative input terminal 202, wherein a protection unit 206 is connected between the positive input terminal 201 and the positive output terminal 204, or between the negative input terminal 202 and the negative output terminal 205.

It can be seen from the above that the power distribution module 200 can be flexibly configured in the power distribution box according to the needs of the load, which can improve the flexibility of the power distribution box.

In order to indicate the working state of the protection unit 206, the power distribution module 200 in this embodiment may also include a state indicating unit 207 arranged between the positive circuit and the negative circuit, the positive input terminal 201, the state indicating unit 207, the protection unit 206 and the negative input terminal 202 can form a loop, so that the working state of the protection unit 206 can be indicated by the state indication unit 207, the positive circuit is a circuit connecting the positive input terminal 201 and the positive output terminal 204, the The negative circuit is a circuit connecting the negative input terminal 202 and the negative output terminal 205 .

Fig. 4 is a three-dimensional schematic diagram of a power distribution module 200 according to this embodiment of the invention. As shown in Fig. 4, the power distribution module 200 includes a hot-swappable connector 203 having a positive input terminal 201 and a negative input terminal 202, a fuse installation slot 2061, Status indicator light 2071, positive output terminal 204 and negative output terminal 205, wherein:

The positive input terminal 201 and the negative input terminal 202 may be push-in (that is, press-in) screw terminals, which are connected to external devices through bolts;

A fuse (not shown) is installed in the fuse installation groove 2061, and the fuse can be used as the protection unit 206;

The status indicator light 2071 is an integral part of the status indicating unit 207. Please refer to FIG. The alarm indication of the fuse on-off state, during specific implementation, the fuse on-off state indicator light 2071 can be an LED (Light Emitting Diode, light emitting diode), and the LED and a resistor are connected in series to form the state indicating unit 207.

In actual implementation, the positive input terminal 201 and the negative input terminal 202 on the hot-swappable connector 203 can be push-in connector (Q.C) terminals as shown in FIG. 5 , or clip-type terminals. This embodiment is wrong The form of the hot plug connector 203 is specifically limited.

The power distribution module 200 of this embodiment can be applied to a communication power supply system, and in a communication power supply system, the positive circuit is usually grounded, so that the negative circuit has a negative voltage relative to the positive circuit. In this case, the protection unit 206 can be connected between the negative input terminal 202 and the negative output terminal 205. In actual implementation, as shown in FIG. 6 , the protection unit 206 can be an electronic fuse. The protection unit 206, the specific form of the protection unit 206 is not limited in this embodiment.

The schematic circuit diagram of the power distribution module in this embodiment is shown in FIG. 7 , which includes a positive circuit and a negative circuit, and a fuse is installed on the negative circuit as a protection unit 206 . A resistor and an LED connected in series are connected between the positive circuit and the negative circuit, and the resistor and the LED are part of the status indication unit 207, and the LED is used as an indicator light to display the working state (that is, the on-off state) of the fuse, so as to realize the safety of the fuse. Alarm indication of on-off status.

As shown in Figure 8, the panel of the power distribution module 200 in this embodiment is provided with a status indicator light 2071 in the status indication unit 207 to display the working status of the protection unit 206, and the panel is also provided with two output cable fixing The operation hole 208 is used to respectively fix the output cables connected to the positive output terminal 204 and the negative output terminal 205 , and two output cable interfaces 209 are also arranged on the panel. The positive output terminal 204 is connected to the positive end of the load through an output cable, and the negative output terminal 205 is connected to the negative end of the load through an output cable.

Embodiment two

As shown in Figure 9, it is a schematic diagram of the internal structure of the power distribution box according to the embodiment of the present invention. The power distribution box provided by this embodiment includes a bus bar 300 and at least one power distribution module 200 in Embodiment 1, and the positive input terminal of the power distribution module 200 201 and the negative input terminal 202 are connected to the bus bar 300 .

The busbar 300 includes a bipolar input terminal 301 (ie, a positive terminal and a negative terminal of the busbar), and the busbar 300 includes at least one set of bipolar output terminals, ie, a bipolar jack, for use by the power distribution module 200 .

The positive input terminal 201 and the negative input terminal 202 of the power distribution module 200 are inserted into a set of bipolar sockets of the bus bar 300 , that is, the positive input terminal 201 and the negative input terminal 202 of the power distribution module 200 are connected to a set of bipolar output terminals of the bus bar 300 terminal connection.

Figure 10 shows the panel layout of the power distribution box in this embodiment. It can be seen that since the power distribution module 200 is hot-swappable, if the protection unit 206 needs to be maintained, the power distribution module 200 can be pulled out of the power distribution box Therefore, the protection unit 206 does not need to be installed on the panel for maintenance, so more outputs can be realized in a limited space, and the flexible configuration of the power distribution box can be realized.

Also because the power distribution module 200 is hot-swappable, the number of modules required can be flexibly configured according to the load within the allowable range of the total space. Yes, the highly flexible configuration of the power distribution box can be realized; since the power distribution module 200 is inserted on the busbar 300 in the power distribution box, there are no cables for electrical connections inside the power distribution box, and the power distribution box is more concise and beautiful. The simplified design of the power distribution box can be realized; also because the power distribution module 200 is inserted on the bus bar 300 in the power distribution box, the man-hours required for making cables, assembling cables, and checking the correctness of cable connections are saved. After the body is assembled, it only needs to insert the power distribution module 200, which can realize the rapid assembly of the power distribution box.

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims (8)

1. A power distribution module, characterized in that, the power distribution module is a DC power distribution module, and the power distribution module includes a hot-swappable connector with a positive input terminal and a negative input terminal, connected to the positive input terminal a positive output terminal connected to the negative input terminal, wherein, between the positive input terminal and the positive output terminal, or between the negative input terminal and the negative output terminal is connected protection unit. 2 . The module according to claim 1 , further comprising a state indication unit disposed between the positive circuit and the negative circuit, for indicating the working state of the protection unit. 3 . 3. The module according to claim 1, wherein the protection unit is a fuse or an electronic fuse. 4 . The module according to claim 1 , wherein the positive input terminal and the negative input terminal are push-in screw terminals, push-in connector terminals or clip-type terminals. 5. A power distribution box, characterized in that the power distribution box is a DC power distribution box, comprising: a power distribution module and a bus bar, the bus bar includes at least one set of two-pole output terminals, and the power distribution module includes a positive pole A hot-swappable connector for an input terminal and a negative input terminal, a positive output terminal connected to the positive input terminal, a negative output terminal connected to the negative input terminal, the positive input terminal and the negative input terminal are connected to the bus bar A group of bipolar output terminals are connected, wherein a protection unit is connected between the positive input terminal and the positive output terminal, or between the negative input terminal and the negative output terminal. 6 . The power distribution box according to claim 5 , wherein the power distribution module further comprises a state indicating unit disposed between the positive circuit and the negative circuit, for indicating the working state of the protection unit. 7 . 7. The power distribution box according to claim 5, wherein the protection unit is a fuse or an electronic fuse. 8 . The power distribution box according to claim 5 , wherein the positive input terminal and the negative input terminal are push-in screw terminals, push-in joint terminals or clip-type terminals.

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