CN106684629B

CN106684629B - Modular power distribution unit

Info

Publication number: CN106684629B
Application number: CN201710038416.6A
Authority: CN
Inventors: 杨国军; 邓奇昌; 杨柳
Original assignee: Shenzhen Canspd Technology Co ltd
Current assignee: Shenzhen Canspd Technology Co ltd
Priority date: 2017-01-19
Filing date: 2017-01-19
Publication date: 2022-11-29
Anticipated expiration: 2037-01-19
Also published as: CN106684629A

Abstract

The invention is suitable for the technical field of power distribution units, and provides a modular power distribution unit which comprises a base and at least two plug modules, wherein each plug module comprises at least two socket modules, each socket module is provided with a jack, and the outer side surfaces of the plug modules are provided with conductive pieces; the base is provided with a conductive bar, the plug module is detachably inserted in the base, and the conductive piece is contacted with the conductive bar. According to the power distribution unit, each plugging module can be separately inserted into the base, so that when a single plugging module is damaged, the damaged plugging module can be directly separated from the base under the condition of no power failure, and can be replaced by a new plugging module without disconnecting the circuit of the whole power distribution unit, and the plugging module can be replaced or maintained after being separated, so that the maintenance cost is saved, and meanwhile, the equipment loss caused by sudden power failure of the whole power distribution unit is reduced.

Description

Modular power distribution unit

Technical Field

The invention belongs to the technical field of power distribution units, and particularly relates to a modular power distribution unit.

Background

The Power Distribution Unit (PDU) provides Power Distribution for the electrical equipment installed in the cabinet, has various series specifications of different functions, installation modes and different insertion combinations, and can provide a suitable rack-mounted Power Distribution solution for different Power environments.

At present, all modules of the traditional PDU in the market are fixed together by welding through wires or copper bars and the like. If PDU needs to change the adjustment or when one module is qualified for maintenance in the use, the whole PDU power supply must be cut off, then PDU is dismantled from the rack, PDU is separated again, the welding point of the fault module is removed, and then the module is taken out for processing. The method has the advantages of complex flow, large workload, long time and high cost, and the normal work of the machine equipment can be influenced by the outage of the whole PDU, so that certain influence and loss are caused, and especially on some important equipment, the loss can be very large.

Disclosure of Invention

The invention aims to provide a modular power distribution unit, aiming at realizing the independent replacement of a damaged PDU plug module and saving the production cost on the premise of not influencing the work of other plug modules of the whole PDU.

The embodiment of the invention provides a modularized power distribution unit, which comprises a base and at least two plug modules, wherein each plug module comprises at least two (one) socket modules, each socket module is provided with a jack, and the outer side surfaces of the plug modules are provided with conductive pieces; the base is provided with a conductive strip, the plugging module is detachably inserted on the base, and the conductive piece is contacted with the conductive strip.

Further, the conductive pieces comprise live wire conductive pieces, zero wire conductive pieces and ground wire connecting pieces, the conductive pieces comprise live wire conductive bars, zero wire conductive bars and ground wire connecting pieces, when the plugging module is inserted into the base, the live wire conductive pieces are in contact with the live wire conductive bars, the zero wire conductive pieces are in contact with the zero wire conductive bars, and the ground wire connecting pieces are in contact with the ground wire connecting pieces.

Furthermore, the conductive piece further comprises a signal connecting pin, the conductive bar further comprises a signal connecting piece, and when the plugging module is inserted on the base, the signal connecting pin is in contact with the signal connecting piece.

Further, an upper limiting structure and a lower limiting structure which are used for preventing the base and the plugging module from moving up and down relatively are arranged between the base and the plugging module.

Furthermore, a left limiting structure and a right limiting structure for preventing the left limiting structure and the right limiting structure from moving left and right are arranged between the base and the plugging module.

Furthermore, the base comprises a section bar and an insulating frame body, the insulating frame body is embedded in the section bar, a plurality of first wire grooves which are mutually spaced are formed in the insulating frame body, and the live wire conducting strips and the zero wire conducting strips are embedded in the first wire grooves.

Furthermore, a second wire groove is formed in the section bar, and the ground wire connecting piece is embedded in the first wire groove or the second wire groove.

Furthermore, a plurality of third wire grooves which are mutually spaced are formed in the insulating frame, and the signal connecting sheet is embedded in the third wire grooves.

Further, the first wire groove, the second wire groove and the third wire groove are all open grooves, and the width of the notch is smaller than that of the space in the groove.

Further, the power distribution unit further comprises a baffle plate detachably mounted at an end of the base.

Compared with the prior art, the invention has the beneficial effects that: the power distribution unit comprises at least two plugging modules, each plugging module is detachably inserted into the base, and the conductive pieces on the plugging modules can be contacted with the conductive bars on the base to realize electrical connection. Therefore, when a single plug module is damaged, the damaged plug module can be directly separated from the base under the condition of no power failure, and the damaged plug module can be replaced by a new plug module without disconnecting the circuit of the whole power distribution unit, and then replaced or maintained after being disassembled, so that the maintenance cost is saved, and meanwhile, the equipment loss caused by sudden power failure of the whole power distribution unit is reduced.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.

Fig. 1 is a schematic perspective view illustrating a plug module of a modular power distribution unit all plugged in a base according to an embodiment of the present invention;

fig. 2 is a schematic perspective view of the power distribution unit shown in fig. 1 after a plug module is pulled out of a base;

FIG. 3 is a schematic longitudinal cross-sectional view of the power distribution unit shown in FIG. 1;

FIG. 4 is a schematic perspective view of a plug module of the power distribution unit shown in FIG. 1;

FIG. 5 is a cross-sectional schematic view of four common latches;

fig. 6a to 6d are schematic longitudinal cross-sectional views of a power distribution unit having 2, 3, 4 and 5 first trunking respectively;

FIG. 7 is a schematic perspective view of a base in the power distribution unit shown in FIG. 1;

fig. 8 is a schematic perspective view of a plug module of a modular power distribution unit according to a second embodiment of the present invention;

FIG. 9 is a schematic perspective view of a base in the power distribution unit shown in FIG. 8;

FIG. 10 is a schematic longitudinal cross-sectional view of the power distribution unit shown in FIG. 8;

FIG. 11 is a schematic longitudinal cross-sectional view of the power distribution unit of FIG. 8 with another resilient latch;

fig. 12 is a schematic side view of a plug module of a modular power distribution unit according to a third embodiment of the present invention inserted into a base;

fig. 13 is a schematic side view of the power distribution unit shown in fig. 12 with the plug module pulled out of the base.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The first embodiment is as follows:

as shown in fig. 1 to fig. 3, a first embodiment of the invention provides a modular power distribution unit, which includes a base 1, at least two plug modules 2 and a baffle 3, where each plug module 2 includes at least two socket modules 21, and each socket module 21 is provided with a jack 211. The outer side surface of the plugging module 2 is provided with a conductive piece; the base 1 is provided with a conductive strip, the plug-in module 2 is detachably inserted in the base 1, and the conductive piece is contacted with the conductive strip. Baffle 3 detachably installs in the tip of base 1, and this embodiment can fasten baffle 3 at base 1's both ends position through detachable coupling assembling such as buckle, screw, and then prevents that plug module 2 from slipping from base 1 along the both ends of controlling of length direction of base 1.

The base 1 comprises a section bar 11 and an insulating frame 12, wherein the insulating frame 12 is embedded in the section bar 11. In order to ensure the structural strength of the profile 11 and to allow the power distribution unit to have a sufficient length, the profile 11 is made of a hard material such as metal or alloy, and in order to facilitate the ground conduction, the profile 11 is preferably made of a conductive metal material.

Specifically, the number of the insertion holes 211 on each socket module 21 is two or more, and the layout positions of the insertion holes 211 and the shapes of the insertion holes 211 are not limited. Referring to fig. 4, the conductors include a live conductor 221, a neutral conductor 222, a ground connection 223, and a signal connection pin 224, the conductors including a live conductor 131, a neutral conductor 132, a ground connection 133, and a signal connection 134. In this embodiment, a conductive screw is used as the ground wire connecting member 223, and the live wire conductive member 221 and the neutral wire conductive member 222 are pins, and referring to fig. 5, the cross-sectional shape of the pins may be rectangular, circular, oval, etc.

A plurality of first wire grooves 121 and a plurality of third wire grooves 123 are formed in the insulating frame 12, the first wire grooves 121 are spaced from each other, and the live conductor bars 131 and the neutral conductor bars 132 are embedded in the first wire grooves 121; the signal connecting piece 134 is embedded in the third slot 123. The section bar 11 is provided with a second wire groove 112, and the ground wire connecting piece 133 is embedded in the second wire groove 112. The total number of the live conductor 221 and the neutral conductor 222 is the same as the total number of the first wire slots 121, and the total number of the signal connecting pins 224 is the same as the total number of the third wire slots 123. The total number of the first wire slots 121 is not limited, and referring to fig. 6a to 6d, application structures of 2, 3, 4 and 5 first wire slots 121 are provided, respectively.

The first wire groove 121, the second wire groove 112 and the third wire groove 123 are all open grooves, so that the conductive members can be inserted into the grooves to be electrically connected with the conductive bars. In order to prevent the bus bar from separating from the slot, the width of the notch is smaller than the width of the space in the slot.

When the plug module 2 is inserted into the base 1, the live conductor 221 contacts with the live conductor bar 131 for power supply, and the neutral conductor 222 contacts with the neutral conductor bar 132 for power supply. Signal connection needle 224 contacts with signal connection piece 134, and signal intercommunication, information such as electric current, voltage, power factor, environment humiture, smog, water logging, entrance guard through intelligent gauge outfit detectable plug module 2. Thus, the power distribution unit is intelligentized.

Referring to fig. 7, in order to make the contact relationship between the live conductor 221 and the live conductor bar 131, and between the neutral conductor 222 and the neutral conductor bar 132 more secure, the present embodiment adopts a clamping manner, i.e. the live conductor bar 131 and the neutral conductor bar 132 are rolled into a resilient clamping member with a U-shaped cross section. After the ground wire connecting piece 223 is screwed, the ground wire connecting piece 223 contacts with the ground wire connecting piece 133, and at the moment, the ground wire connecting piece 223 is clamped in the second wire groove 112, so that the plugging module 2 and the base 1 can be prevented from moving left and right relatively, and therefore the second wire groove 112 and the ground wire connecting piece 223 form a left limiting structure and a right limiting structure of the plugging module 2 and the base 1 together.

The edge of one side of the top surface of the plug module 2 extends to the outside direction to form a clamping strip 23, the edge of the other side of the bottom surface of the plug module 2 bends to the inside to form a clamping hook 24, correspondingly, the upper end part of the side wall of the base 1 is provided with a clamping groove 14, the edge position of the bottom surface of the base 1 is provided with a clamping position 15, when the plug module 2 is inserted into the base 1, the clamping strip 23 is clamped into the clamping groove 14, and the clamping hook 24 is clamped on the clamping position 15. Furthermore, the above-mentioned buckle structure constitutes the upper and lower limit structure between the base 1 and the plug module 2 for preventing the relative movement of the two.

The power distribution unit of this embodiment includes at least two plug modules 2, and every plug module 2 is separably inserted on the base 1, and the conductive piece on the plug module 2 can contact with the conductive strip on the base 1, so as to realize electrical connection. Consequently, when single plug module loss 2 is bad, can be under the circumstances of not cutting off the power supply, directly with the plug module 2 and the base 1 separation of damage, change into new plug module 2 can, need not to break off the circuit of whole power distribution unit again, change or maintain after the split again, practiced thrift the maintenance cost, simultaneously, reduced because of the equipment loss that whole power distribution unit suddenly cuts off the power supply and cause.

Example two:

referring to fig. 8 and 9, a second embodiment of the invention provides a modular power distribution unit, which is the same as the first embodiment except for the following differences.

The ground wire connecting piece 223 of this embodiment is a pin disposed on the plug module 2, and meanwhile, the insulating frame 12 has a second slot 122 for inserting the ground wire connecting piece 223 therein, the ground wire connecting piece 133 is embedded in the second slot 122, and the ground wire connecting piece 133, the live wire conductive strip 131 and the zero wire conductive strip 132 are all rolled into an elastic clamping piece with a U-shaped cross section.

In addition, in the present embodiment, the elastic buckle is used for performing left-right limiting, please refer to fig. 10, the zigzag elastic buckle 25 is used, the elastic buckle 25 is disposed on the plug module 2, a buckle part extends from a bottom end of the elastic buckle 25, the buckle part is provided with a zigzag fastening point 251, correspondingly, the profile 1 is provided with a zigzag fastening slot 16 matching with the zigzag fastening point 251, and when the plug module 2 is inserted into the base 1, the fastening point 251 and the fastening slot 16 are fastened to each other. The zigzag elastic buckle 25 is pulled upwards, at this time, the clamping point 251 is separated from the clamping groove 16, and the plug module 2 can be pulled out of the base. Referring to fig. 11, the elastic clip 26 of the present embodiment is different from the zigzag elastic clip 25 in that the elastic clip 26 simplifies the end 261 of the clip portion, simplifies the structure of the slot 17 on the base 1, and the end 261 of the clip portion is directly clipped into the slot 17. Similarly, when the plug module 2 is inserted into the base 1, the end 261 of the locking portion and the locking slot 17 are locked to each other. The elastic buckle 26 is pulled upwards, at this time, the end 261 of the buckle part is separated from the slot 17, and the plug module 2 can be pulled out of the base 1.

Example three:

referring to fig. 12 and 13, a third embodiment of the invention provides a modular power distribution unit, which is the same as the first embodiment except for the following differences.

The two embodiments described above adopt a left-right insertion and extraction manner, while the embodiment adopts an up-down insertion and extraction manner, and accordingly, the insertion and extraction module 2 and the base 1 are provided with an up-down and left-right limiting structure (not shown in the figure).

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A modular power distribution unit is characterized by comprising a base and at least two plug modules, wherein each plug module comprises at least two socket modules, each socket module is provided with a jack, and the outer side surfaces of the plug modules are provided with conductive pieces; the base is provided with a conductive bar, the plugging module is detachably inserted on the base, the conductive piece is contacted with the conductive bar, and a left limiting structure and a right limiting structure for preventing the base and the plugging module from moving left and right relatively are arranged between the base and the plugging module; the left and right limiting structures comprise elastic buckles and sawtooth-shaped clamping grooves, the elastic buckles are arranged on one sides, deviating from the conductive pieces, of the plugging module, buckling parts extend out of the bottom ends of the elastic buckles, sawtooth-shaped clamping points are arranged on the buckling parts, the sawtooth-shaped clamping grooves are arranged on the base and matched with the sawtooth-shaped clamping points, and the plugging module and the base are plugged in a left and right mode.

2. The modular power distribution unit of claim 1, wherein the conductors comprise a live conductor, a neutral conductor, and a ground connector, the conductors comprising a live conductor bar, a neutral conductor bar, and a ground connector, the live conductor bar contacting the live conductor bar, the neutral conductor bar contacting the neutral conductor bar, and the ground connector contacting the ground connector when the pluggable module is plugged into the base.

3. The modular power distribution unit of claim 2, wherein the conductive member further comprises a signal connection pin, and wherein the conductive bar further comprises a signal connection pad, wherein the signal connection pin contacts the signal connection pad when the pluggable module is plugged into the base.

4. The modular power distribution unit of any one of claims 1 to 3, wherein an upper and a lower limiting structures for preventing relative movement of the base and the plug module are disposed between the base and the plug module.

5. The modular power distribution unit of claim 3, wherein the base comprises a profile and an insulating frame, the insulating frame is embedded in the profile, and a plurality of first slots are defined in the insulating frame, the first slots being spaced apart from each other, and the live and neutral conductors being embedded in the first slots.

6. The modular power distribution unit of claim 5, wherein the profile defines a second raceway and the ground strap is embedded in the first raceway or the second raceway.

7. The modular power distribution unit of claim 6, wherein the insulating housing defines a plurality of spaced third slots, and the signal pads are embedded in the third slots.

8. The modular power distribution unit of claim 7, wherein the first, second, and third wire slots are open slots, and the width of the slot opening is less than the width of the space within the slot.

9. The modular power distribution unit of any of claims 1 to 3, further comprising a baffle removably mounted to an end of the base.