CN216850399U - Power distribution device - Google Patents

Abstract

The utility model discloses a power distribution device; the track comprises a track and adapters installed in the track, cables for supplying power and/or transmission cables for transmitting data are arranged on the outer side of the track, at least one group of cables or transmission cables is arranged, and the group of cables or transmission cables are connected with at least one adapter. The utility model discloses can have multiunit single phase power supply. The transmittable power can be obviously increased, and the condition that a single-phase power supply is overloaded is avoided. Thereby enabling to provide a stable power supply to the adapter. And set up transmission cable in the track, can improve through weak current of transmission cable conveying or signal the utility model discloses variety during the use.

Description

Power distribution device

Technical Field

The utility model relates to a power distribution technical field especially relates to a power distribution device.

Background

In the existing power supply track system, because the arm, the contact mode, the track structure shape and the mechanical connection of the adapter are related, the power supply track system and the power supply point are limited to a group of single-phase power supplies, the power which can be transmitted by the group of single-phase power supplies is low, and the adapter is easy to overload to cause potential safety hazards. And the transmission cable required by weak current connection cannot be arranged in the adapter according to the requirement, so that the use mode is single.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the main technical problem who solves provides a power distribution device, and the power of solving a set of single phase power transmissible is lower, the adapter transships very easily, the comparatively single problem of using-way.

In order to solve the technical problem, the utility model discloses a technical scheme provide a power distribution device, include: the track and install the adapter in the track, lay the cable and/or the transmission cable of transmission data for the power supply outside the track, the cable or transmission cable is provided with a set at least, and a set of cable or transmission cable connects at least one adapter.

Preferably, the front, rear and/or underside of the rail can be provided with at least one set of electrical and/or transmission cables.

Preferably, the transmission cable includes an HDMI cable, a USB cable network CAT6 cable, a telephone cable CAT3 cable, a coaxial cable, and/or a DIN cable.

Preferably, the wires included in the group of cables include a neutral wire and a live wire, and the live wire is provided with a plurality of wires.

Preferably, the plurality of lines of the set of cables may be arranged on the front side, the rear side and/or the underside of the track, respectively.

Preferably, the track comprises a first side plate and a second side plate, a first outer plate and a second outer plate are respectively clamped on the outer sides of the first side plate and the second side plate, a first accommodating space is arranged between the first outer plate and the first side plate, a second accommodating space is arranged between the second outer plate and the second side plate, and cables or transmission cables are respectively arranged in the first accommodating space and the second accommodating space in a penetrating manner.

Preferably, the left end and the right end of the track are provided with a left sealing cover and a right sealing cover which seal the ports of the left end and the right end of the track, the first accommodating space and the second accommodating space.

Preferably, the track is provided with a connection portion at a side adjacent to the cable or transmission cable, where the cable or transmission cable is connected to the adapter.

Preferably, a shutter or a shutter is provided at the connection portion.

The utility model has the advantages that: the utility model discloses can have multiunit single phase power supply. The transmittable power can be obviously increased, and the condition that a single-phase power supply is overloaded is avoided. Thereby being capable of providing a stable power supply for the adapter. And set up the transmission cable in the track, can improve through weak current of transmission cable conveying or signal the utility model discloses variety during the use.

Drawings

Fig. 1 is a schematic structural diagram according to an embodiment of the present invention;

fig. 2 is a schematic cross-sectional view of an embodiment of the present invention;

fig. 3 is a schematic view of a sealing structure and a rail connection structure according to an embodiment of the present invention;

fig. 4 is a schematic view of another connection structure of a sealing structure and a rail according to an embodiment of the present invention;

fig. 5 is a schematic view of another connection structure of a sealing structure and a rail according to an embodiment of the present invention;

fig. 6 is a schematic view of another connection structure of a sealing structure and a rail according to an embodiment of the present invention;

fig. 7 is a schematic view of a sealed retaining assembly according to an embodiment of the present invention;

fig. 8 is a schematic structural view of a seal structure connected to a rail by a locking structure according to an embodiment of the present invention;

fig. 9 is a schematic view of a connection of a cable to an adapter according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a conductive structure according to an embodiment of the present invention;

fig. 11 is an exploded view of a conductive structure according to an embodiment of the present invention;

fig. 12 is a schematic structural diagram of a conductive member in a conductive structure according to an embodiment of the present invention;

fig. 13 is a schematic structural diagram of a first card connector element in a conductive structure according to an embodiment of the present invention;

fig. 14 is a schematic structural view of a second card connector in a conductive structure according to an embodiment of the present invention;

FIG. 15 is a schematic view of a connection between a locking structure and an adapter according to an embodiment of the present invention;

fig. 16 is a schematic structural view of a locking structure according to an embodiment of the present invention;

fig. 17 is an exploded view of a closure according to an embodiment of the present invention;

FIG. 18 is a schematic view of a plurality of locking structures used in combination according to an embodiment of the present invention;

fig. 19 is a schematic structural view of an inner rail plate according to an embodiment of the present invention;

fig. 20 is a schematic view of a conductive structure connected to a contact point according to an embodiment of the present invention;

fig. 21 is a schematic structural diagram of an adapter according to an embodiment of the present invention;

fig. 22 is a schematic diagram of an exploded view of an adapter according to an embodiment of the present invention;

fig. 23 is a schematic top view of an adapter according to an embodiment of the present invention;

fig. 24 is a schematic structural view of an unlocking structure according to an embodiment of the present invention;

fig. 25 is a schematic structural view of a power take-off member and a contact point according to an embodiment of the present invention;

fig. 26 is a schematic cross-sectional view of an adapter according to an embodiment of the present invention;

fig. 27 is a schematic view of an internal structure of an adapter according to an embodiment of the present invention;

fig. 28 is a schematic structural view of a switch structure connected to an intermediate member according to an embodiment of the present invention;

fig. 29 is a schematic structural diagram of a switch structure according to an embodiment of the present invention;

fig. 30 is a schematic view of the connection between the inner casing and the stroke structure according to an embodiment of the present invention;

fig. 31 is a schematic diagram of a structure of an embodiment routine according to the present invention;

fig. 32 is a schematic diagram of a travel structure limit point according to an embodiment of the invention.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described in more detail with reference to the accompanying drawings and specific embodiments. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It is to be noted that, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Existing track systems consist of a track and an adapter unit, which is mounted on the track by a "key" or "touch arm" system. The disadvantage of this system is that not only is the overall track system made significantly thicker, but the protruding adapters can become an additional obstacle during normal use. When not in use, the adapter protrusion still provides additional obstacles and requires additional storage space. Adapter protrusion also exacerbates the mechanical weakness of the "key" or "contact arm" because it provides an additional point to apply torque, increasing the point of failure.

Fig. 1 shows an embodiment of the power distribution apparatus of the present invention, including: track 1 with install the adapter 2 that is used for getting the electricity in track 1, the up end of adapter 2 is parallel and level with the up end of track 1.

The track 1 has a receiving space therein, and the adapter 2 is mounted in the receiving space. The depth of the accommodation space is equal to, slightly larger than or slightly smaller than the thickness of the adapter 2. The upper end face of the adapter 2 can thereby be flush or nearly flush with the upper end face of the rail 1.

The upper end face of the adapter 2 is flush with the upper end face of the track 1, so that the adapter 2 can be prevented from protruding out of the track 1, and the occupied space of the adapter 2 is reduced. And avoid touching adapter 2 by mistake, improve the security of adapter 2. The number of points of failure of the adapter 2 is reduced.

The adapter 2 comprises a strong current adapter, a weak current adapter and/or a data transmission adapter.

The strong electric adapter comprises a Chinese socket, an English standard socket, a German standard socket, a French socket, an Italian socket, an American socket and the like.

The weak current adapter comprises a USB charging adapter, a wireless charging adapter, a Bluetooth sound box adapter and the like.

The data transmission adapter comprises an HDMI adapter, a USB data transmission adapter, a network data transmission adapter, a control switch adapter and the like.

As shown in fig. 1 and 2, the upper side of the rail 1 has an opening, and the upper side of the rail 1 is provided with a sealing structure 4 that seals the opening.

The rail 1 is sealed by the sealing structure 4, so that dust is prevented from entering the accommodating space in the rail 1.

The sealing structure 4 has two states of use, including an open state and a closed state. In the open state, the adapter 2 is exposed to facilitate power supply. In the closed state, the opening is sealed when the sealing structure 4 is closed, and dust is prevented from entering the accommodating space in the rail 1.

A plurality of adapters 2 may be disposed in the track 1, the openings of the adapters 2 at corresponding positions are connection ports 11, and the openings may be divided into a plurality of connection ports 11 by the adapters 2.

The size of the sealing structure 4 is adapted to the size of the opening or at least one of the connection openings 11.

When seal structure 4's size and opening size suited, seal structure 4 can seal whole track 1 opening this moment, seals track 1's opening through a seal structure 4, and when seal structure 4 opened, track 1 opening was opened, and all adapters 2 all can expose and get the electricity. When the sealing structure 4 is closed, the opening of the rail 1 is sealed against the ingress of dust. However, the sealing mode can only open or seal the opening integrally, when a plurality of adapters 2 are installed in the track 1 and only one adapter 2 is used, dust can easily enter the track 1 from the positions of other adapters 2, and the safety is poor.

Preferably, the size of the sealing structure 4 is adapted to the size of the connection port 11. The description will be made by taking a connection port 11 as an example, that is, the connection port 11 is correspondingly provided with a sealing structure 4, and one sealing structure 4 can seal one connection port 11. When one sealing structure 4 is opened, the adapter 2 at the corresponding position can be exposed to take power, and the sealing structures 4 at other positions can be opened or closed. Whereby the opening or closing of the corresponding connection port 11 can be individually controlled by the seal structure 4. This can prevent dust from entering the connection port 11 corresponding to one of the adapters 2 when the other adapter 2 is used.

Structurally, the sealing structure 4 may be an integral structure or a split structure, and when the sealing structure 4 is an integral structure, the size of the sealing structure 4 is matched with the size of the opening or the connecting port 11 to seal the opening or the connecting port 11. When the sealing structure 4 is a split structure, the sealing structure 4 is composed of a plurality of sealing substructures, and the size of the plurality of sealing substructures when combined together is matched with the size of the opening or the connecting port 11, so that the opening or the connecting port 11 is sealed.

The track 1 comprises a bottom plate, and a first side plate 12 and a second side plate 13 which extend upwards from the front side and the rear side of the bottom plate.

In connection, the connection mode of the sealing structure 4 and the track 1 includes hinge, clamping or overlapping.

The manner in which the sealing structure 4 is hingedly connected to the track 1 includes a variety of ways.

When the sealing structure 4 is of an integral structure, the hinged side of the sealing structure 4 is hinged to the first side plate 12 of the track 1, and the free side of the sealing structure 4 is attached to the second side plate 13 of the track 1 to seal the opening or connecting port 11. Or the hinged side of the sealing structure 4 is hinged between one end of the first side plate 12 and the second side plate 13 and the free side of the sealing structure 4 is fitted between the other end of the first side plate 12 and the second side plate 13.

When the sealing structure 4 is a split structure, for example, as shown in fig. 3, when the sealing structure 4 comprises a first sealing substructure 401 and a second sealing substructure 402, the hinged side of the first sealing substructure 401 is hinged to the first side plate 12 of the track 1, the hinged side of the second sealing substructure 402 is hinged to the second side plate 13 of the track 1, and the free side of the first sealing substructure 401 abuts the free side of the second sealing substructure 402 to seal the opening or connection port 11. Alternatively, as shown in fig. 4, the hinged sides of the first and second sealing substructures 401 and 402 are hinged between the first and second side plates 12 and 13 of the track 1, and the free side of the first sealing substructure 401 abuts the free side of the second sealing substructure 402 to seal the opening or connecting port 11. Still alternatively, as shown in fig. 5, the hinged side of the first sealing substructure 401 is hinged to the first side plate 12 of the track 1, the free side of the first sealing substructure 401 is hinged to the hinged side of the second sealing substructure 402, and the second sealing substructure 402 is attached to the second side plate 13 of the track 1 from the right side to seal the opening or connection port 11.

The position of the sealing structure 4 can be determined by the transition fit of the hinge shaft to the sealing structure 4 and the transition fit of the hinge shaft to the rail 1 when hinged. The transition fit tolerance is preferably H6/k5, and when no external force is applied, the fit part has a certain friction force to prevent the sealing structure 4 from rotating relative to the track 1. When a certain external force is applied, the seal structure 4 can be rotated with respect to the track 1 by the external force. The external force may be applied to the sealing structure 4 by the torsion spring 2832 to cover the sealing structure 4 at the opening or connection port 11 of the rail 1. For example, when one side of sealing structure 4 articulates at the front end of first curb plate 12, the one end of torsional spring 2832 is contradicted on the inner wall of track 1 first curb plate 12, and the other end of torsional spring 2832 is contradicted on the inner wall of sealing structure 4, can use the articulated shaft with sealing structure 4 as the axle center from this, rotates sealing structure 4 from bottom to top, when sealing structure 4 is perpendicular with first curb plate 12, carries on spacingly to sealing structure 4, avoids the excessive open-ended upside that rotates of sealing structure 4. When sealing structure 4 is limited, a baffle plate can extend downwards from the front end of second side plate 13 to limit sealing structure 4.

When connected by means of a hinge, as shown in fig. 6 and 7, the track 1 includes a first side plate 12 and a second side plate 13, and when the seal structure 4 is hinged to the track 1, the seal structure 4 includes a first seal plate 41, a second seal plate 42 hinged to the first side plate 12 and the second side plate 13, and a fixing assembly 43 fixing the first seal plate 41 and the second seal plate 42, the fixing assembly 43 being used to lock the first seal plate 41 and the second seal plate 42.

The first and second sealing panels 41, 42 are hinged back and forth between the first and second side panels 12, 13 of the adapter 2. The lower surface of the adjacent position of the first and second sealing plates 41 and 42 is provided with a support plate 431 supporting the fixing member 43, and the fixing member 43 is disposed on the support plate 431.

When seal structure 4 is closed, seal structure 4 is fixed in the closed state by fixing member 43.

The fixing assembly 43 includes a first fixing seal 432, a second fixing seal 433, and a first engaging block 4321 engaging with the first fixing seal 432 and the second fixing seal 433, wherein the first fixing seal 432 is fixedly connected with the first sealing plate 41, the second fixing seal 433 is fixedly connected with the second sealing plate 42, the first engaging block 4321 is connected with the first fixing member 271 and the second fixing member 271, and the first fixing member 271 and the second fixing member 271 lock the first sealing plate 41 and the second sealing plate 42.

The first stationary seal 432 has a stopper 4326 disposed therein, the stopper 4326 has a stopper groove 43261 adjacent to the first engagement block 4321, the stationary assembly 43 further includes a first torsion spring 4322 for providing a force to the first engagement block 4321, and the first torsion spring 4322 presses the first engagement block 4321 into the stopper groove 43261 to lock the first and second sealing plates 41 and 42.

The first fixed sealing part 432 is semicircular, the first fixed sealing part 432 is provided with a groove 4323, a fixing rod 4324 is arranged in the groove 4323 adjacent to the circle center, a clamping table 4325 is arranged in the groove 4323 on one side of the fixing rod 4324, and a stop 4326 is arranged in the groove 4323 on the other side of the fixing rod 4324. A clamping portion 43251 is formed between the clamping table 4325 and the inner wall of the first fixed sealing member 432, and a stop groove 43261 is formed at a position, adjacent to the clamping portion 43251, of the stop 4326. The second stationary seal 433 has the same structure as the first stationary seal 432, except that the engagement portion 43251 and the stopper 4326 of the first stationary seal 432 are opposite to the engagement portion 43251 and the stopper 4326 of the second stationary seal 433. This allows the first engagement piece 4321 to be engaged with the engagement portion 43251 of the first fixed seal 432 and the stopper 4326 of the second fixed seal 433. The first torsion spring 4322 is sleeved on the fixing rod 4324 of the first fixed sealing member 432, one end of the first torsion spring 4322 abuts against the fastening platform 4325 of the first fixed sealing member 432, and the other end abuts against one end of the first fastening block 4321 away from the second fixed sealing member 433. Similarly, the first stationary seal 432 is provided in the same manner as the first stationary seal 432, and will not be described in detail.

In the locking operation, the first engagement piece 4321 is pressed into the stopper groove 43261 of the stopper 4326 by the engagement portion 43251 under the urging force of the first torsion spring 4322 in the first fixed seal 432, and when the first engagement piece 4321 enters the stopper groove 43261, the first engagement piece 4321 is held against the lower sides of the first seal plate 41 and the second seal plate 42, whereby the first seal plate 41 and the second seal plate 42 can be locked by the first engagement piece 4321 and cannot be opened in the absence of an external force.

In the unlocking mode, a fixing groove may be formed at a position where the first sealing plate 41 and the second sealing plate 42 are connected, and the fixing hole 4327 may be formed when the fixing groove of the first sealing plate 41 and the fixing groove of the second sealing plate 42 are surrounded. The bottom of the adapter 2 is provided with a projection 2321 fitted with the fixing hole 4327. When the protruding portion 2321 is pushed down into the fixing hole 4327, the first engaging block 4321 is pushed out from the stopper groove 43261, and the first sealing plate 41 and the second sealing plate 42 can be opened after unlocking is completed.

The unlocking mode may further include that a first magnetic portion 4328 protruding out of the first engaging block 4321 is disposed on the first engaging block 4321, a second magnetic portion adapted to the first magnetic portion 4328 is disposed at the bottom of the adapter 2, the second magnetic portion adsorbs the first magnetic portion 4328 under the action of magnetic force, the adapter 2 is rotated to rotate the second magnetic portion, the rotation of the second magnetic portion drives the first magnetic portion 4328 to rotate, the first magnetic portion 4328 rotates the first engaging block 4321, the first engaging block 4321 slides out of the stopper groove 43261, and the first sealing plate 41 and the second sealing plate 42 can be opened after unlocking is completed.

The same action is provided in the second stationary seal 433 while the first stationary seal 432 is moving, and will not be repeated.

The manner in which the sealing structure 4 is snapped onto the track 1 includes a variety of ways. When the sealing structure 4 is an integral structure, clamping grooves may be formed at the rear portion of the upper end surface of the first side plate 12 and the front portion of the upper end surface of the second side plate 13, and both sides of the sealing structure 4 are clamped between the clamping grooves to seal the opening or the connecting port 11.

The clamping grooves can be clamped in the middle of the upper end face of the first side plate 12 and the middle of the upper end face of the second side plate 13, clamping blocks matched with the clamping grooves extend downwards from two ends of the sealing structure 4, and the clamping blocks are clamped in the clamping grooves to seal the opening or the connecting port 11.

Preferably, as shown in fig. 2 and 8, the sealing structure 4 overlaps the rail 1, and the sealing structure 4 can be separated from the rail 1. In this case, the sealing structure 4 is preferably of an integral structure, and the size of the sealing structure 4 is the same as the size of the connection port 11. The plurality of seal structures 4 seal the different connection ports 11, respectively, and thus seal the entire opening.

The sealing structure 4 is disposed between the first side plate 12 and the second side plate 13, a sealing elastic member 434 is disposed at the lower side of the sealing structure 4, one end of the sealing elastic member 434 abuts against the inner wall of the bottom plate of the track 1, the other end of the sealing elastic member 434 abuts against the inner wall of the sealing structure 4, and the sealing elastic member 434 is used for applying an upward acting force to the sealing structure 4 to push the sealing structure 4 upward. The upper end of the first side plate 12 extends backwards to form a first baffle 435, the upper end of the second side plate 13 extends forwards to form a second baffle, and the distance between the first baffle 435 and the second baffle is larger than the width of the sealing structure 4. To prevent ejection of the sealing structure 4 from the track 1.

Through first baffle 435 and second baffle, carry on spacingly to seal structure 4, prevent that seal structure 4 from popping out from the opening part. When the adapter 2 is installed, the sealing structure 4 is directly pressed down only by using the adapter 2, and the sealing structure 4 is pressed down to the bottom of the track 1, so that the installation and the use of the adapter 2 are not influenced, and the sealing structure 4 does not need to be taken out. After the adapter 2 is removed, the seal structure 4 is lifted up by the seal elastic member 434 to reseal the connection port 11. This can improve the convenience of the adapter 2 when it is mounted and used.

Further, as shown in fig. 1 and 2, a first outer plate 14 and a second outer plate 15 are further clamped on the outer sides of the first side plate 12 and the second side plate 13, a first accommodating space is formed between the first outer plate 14 and the first side plate 12, a second accommodating space is formed between the second outer plate 15 and the second side plate 13, and a power supply cable 3 or a transmission cable for transmitting signals can be inserted into the accommodating spaces.

The electric cable 3 and the transmission cable may be respectively disposed in the first accommodation space and the second accommodation space, so that electromagnetic interference between the electric cable 3 and the transmission cable can be avoided.

Further, the left and right ends of the rail 1 are provided with a left sealing cover 16 and a right sealing cover 17 for sealing the left and right ends of the rail 1 and the first and second accommodating spaces.

In the existing power track 1 system, because the 'arm' of the adapter 2, the contact mode, the structural shape of the track 1 and the mechanical connection are related, the power track 1 system and the power point are limited to a group of single-phase power supplies, the power which can be transmitted by the group of single-phase power supplies is low, and the adapter 2 is easy to overload to cause potential safety hazards.

In order to solve the above problem, cables 3 for supplying power and/or transmission cables for transmitting data are routed outside the track 1, at least one set of cables 3 or transmission cables is provided, and one set of cables 3 or transmission cables is electrically connected to at least one adapter 2.

The transmission cable includes an HDMI cable, a USB cable network CAT6 cable, a telephone cable CAT3 cable, a coaxial cable, a DIN cable, and the like.

The wires included in a set of cables 3 are ground, neutral and live. In a set of cables 3, the live wire may be provided with a plurality of, and a plurality of live wires may share a ground wire and a zero line. Each line can be connected to one or more adapters 2. When adapter 2 connects high-power electrical apparatus, avoid the power all concentrate on a live wire, but can connect different live wires respectively, avoid the transshipping of live wire to can provide stable power for adapter 2.

As shown in fig. 9, a set of cables 3 may be provided on the front, rear and/or lower side of the track 1. When there are few adapters 2, for example only two adapters 2, it is also possible to provide a set of cables 3 on both the left and right side of the track 1.

A set of cables 3 may be provided on one side of the track 1.

It is also possible to arrange the tracks of a set of cables 3 on the front, rear and/or underside of the track 1, respectively. For example one or both lines of a set of cables 3 are arranged on one side of the track 1 and the other lines are arranged on the other side of the track 1.

When a set of cables 3 is provided, the ground, neutral and live wires may be arranged on the same side of the track 1, e.g. the ground, neutral and live wires may be arranged on the front, rear and/or underside of the track 1 simultaneously.

It is also possible to arrange the ground, neutral and live wires of a set of cables 3 on the front, rear and/or underside of the track 1, respectively.

It is also possible to arrange two of the lines of a set of cables 3 on the front, rear and/or underside of the track 1.

The utility model discloses can have a plurality of live wires to form multiunit single phase power supply. Furthermore, the utility model discloses can have and carry out the independent control to every group single phase power supply, the transmissible power of also obvious increase. For example, a single set of single phase power supplies may carry 20A/250V (5000W), doubling the power with each additional set of single phase power supplies. Thus, two sets allow (5000W x 2 ═ 10000W) of power. This calculation is applicable to any combination of single phase power supplies, such as 16A/110V, 32A/250V, 10A/250V, etc.

When the cable 3 is electrically connected to the adapter 2, screw terminals are generally used, which is slow and prone to human error in field installation, and therefore requires trained professionals to ensure safe and correct installation.

In order to solve the above problem, it is preferable that the cable 3 includes bare wires and insulating portions, the bare wires are disposed at intervals, and the insulating portions are disposed between adjacent bare wires. The insulating part is connected with a conductive structure 5.

As shown in fig. 10 and 11, the conductive structure 5 includes a conductive member 51 and an insulating clamping member 52, wherein the conductive member 51 is used for electrically connecting the cable 3 and the adapter 2. The clamping member 52 is used for clamping the conductive member 51. The clip member 52 includes a first clip member 521 and a second clip member 522, and the conductive member 51 is clipped between the first clip member 521 and the second clip member 522.

Furthermore, the left side and the right side of the first card connector 521 are further provided with a fixing station 5211 for being clamped into the rail 1, the rail 1 is provided with a fixing hole 4327 adapted to the fixing station 5211, and the fixing station 5211 is inserted into the fixing hole 4327, so that the conductive structure 5 can be fixedly connected with the rail 1.

As shown in fig. 12, the conductive member 51 includes a protruding portion 511 and a clamping portion 512, and the protruding portion 511 extends out of the clamping portion 512 for connecting with the contact point 24 of the adapter 2. The clamping part 512 is located inside the clamping member 52 and is used for clamping the bare wire part of the connecting cable 3 and guiding electricity on the cable 3 to the adapter 2 through the conductive member 51.

The protruding portion 511 has a U-shaped cross section, and the front side surface of the protruding portion 511 is electrically connected to the adapter 2. The extension 511 greatly reduces the connection time of the adapter 2 to the cable 3 and provides more possibilities for field installation.

The clamping part 512 comprises a first clamping finger 5121, a second clamping finger 5122 and a third clamping finger 5123, wherein the first clamping finger 5121 and the second clamping finger 5122 are arranged at the lower part, the third clamping finger 5123 is arranged at the upper part, the first clamping finger 5121, the second clamping finger 5122 and the third clamping finger 5123 are triangular, a combining part 513 extends forwards from two sides of the third clamping finger 5123, and the combining part 513 is connected with the extending part 511.

When the clamping part 512 is connected with the bare wire part of the cable 3, the bare wire part of the cable 3 is clamped among the first clamping finger 5121, the second clamping finger 5122 and the third clamping finger 5123, and the conductive piece 51 can be firmly clamped on the cable 3 by pinching the first clamping finger 5121, the second clamping finger 5122 and the third clamping finger 5123. Cables 3 of various sizes can be accommodated by first snap finger 5121, second snap finger 5122 and third snap finger 5123. The arrangement method of the cables 3 and the square number of the wires can be used more flexibly to realize more flexible connection.

The rear parts of the first clamping sub-member 521 and the second clamping sub-member 522 are provided with accommodating spaces for accommodating the clamping parts 512 of the conductive members 51, and the cable 3 penetrates into the accommodating spaces and is clamped by the clamping parts 512 of the conductive members 51.

As shown in fig. 13, a boss 5212 is disposed in the middle of the front side of the first card connector 521, the upper surface of the boss 5212 abuts against the lower surface of the combining portion 513 of the conductive member 51, an adapting groove 5221 adapted to the boss 5212 is disposed in the middle of the front side of the second card connector 522, the lower surface of the adapting groove 5221 contacts with the upper surface of the combining portion 513 of the conductive member 51, and thus the conductive member 51 is clamped between the first card connector 521 and the second card connector 522 by the cooperation of the boss 5212 and the adapting groove 5221.

The rear side of the first card sub-element 521 extends upwards to form a buckle 5213, the rear side of the second card sub-element 522 is provided with a clamping table 5222 matched with the buckle 5213, and the buckle 5213 can be clamped at the clamping table 5222. The front side of the first card connector 521 is provided with a locking groove 5214 at the upper and lower sides, the front side of the second card connector 522 is provided with a locking post 5223 adapted to the locking groove 5214, and the locking post 5223 can be locked into the locking groove 5214. The rear sides of the first card connector 521 and the second card connector 522 are tightly connected by the matching of the buckle 5213 and the block 5222. The front sides of the first card-shaped fastener 521 and the second card-shaped fastener 522 are tightly connected by the cooperation of the fastening column 5223 and the fastening groove 5214. So that the conductive member 51 is tightly clamped between the first clamping sub-member 521 and the second clamping sub-member 522.

Further, as shown in fig. 14, the second clip sub-member 522 is further provided with a limiting table 5224 at two sides of the adapting groove 5221, and the limiting table 5224 contacts with the combining portion 513 of the conductive member 51 to limit the degree of freedom of the conductive member 51 and prevent the conductive member 51 from moving left and right.

Preferably, the middle portion of the contact position between the combining portion 513 and the position-limiting base 5224 protrudes in the direction of the position-limiting base 5224, so that the degree of freedom is limited and the contact area between the conductive member 51 and the position-limiting base 5224 is reduced. The safety of the conductive structure 5 in use is improved.

The power distribution device comprises a track 1 and an adapter 2, and when the adapter 2 is installed in the track 1, the adapter 2 can be installed in the track 1 in a bonding mode, a magnetic attraction mode, a screw connection mode, a willow connection mode, a pin connection mode and/or a clamping connection mode.

When installing adapter 2 through the mode of bonding, glue such as PVC glue, PP glue, PE glue, PU glue, ABS glue, TPR glue can be used and adapter 2 is installed in track 1. Or a double-sided adhesive tape which is bonded with plastic and is convenient to detach, such as a non-woven fabric substrate double-sided adhesive tape and a PET substrate double-sided adhesive tape in a 3M double-sided adhesive tape. The adapter 2 is mounted in the rail 1 by gluing.

When installing adapter 2 through the mode of magnetism, can set up the magnet that has magnetism in track 1, magnet can set up on the inner wall of track 1. The adapter 2 is correspondingly provided with a magnetic sheet metal which is made of iron, iron alloy, nickel, cobalt and the like. The adapter 2 is installed in the track 1 by the attraction of the magnet and the metal sheet.

When the adapter 2 is installed by screwing, riveting or pinning, the adapter 2 can be installed in the rail 1 by bolts, screws or pins.

When the adapter 2 is installed in a clamping manner, a boss 5212 or a groove 4323 may be disposed on the inner wall of the rail 1, and a groove 4323 or a boss 5212 may be correspondingly disposed on the adapter 2. The shape of the boss 5212 and recess 4323 may be semicircular, square, dovetail, or the like. The adapter 2 is mounted in the track 1 by the engagement of the groove 4323 with the boss 5212.

Although the adapter 2 can be installed in the rail 1 in the above manner, the installation of the adapter 2 is cumbersome, the installation efficiency is low, and a specific installation tool, an installation material, or the rail 1 and the adapter 2 to be adapted are required. This causes great inconvenience in the installation of the adapter 2.

In order to solve the above problem, it is preferable that the locking structure 6 of the locking adapter 2 is provided in the rail 1 as shown in fig. 15, 16 and 17. The adapter 2 can be quickly mounted in the rail 1 by means of the closure 6.

The locking structure 6 includes a locking piece 61 for locking the adapter 2 and a locking spring 62 for biasing the locking piece 61, and the locking piece 61 includes a locking body portion 611 and a locking portion 612 connected to an upper end of the locking body portion 611 and extending rightward. The adapter 2 is provided with a locking hole 2111 adapted to the locking portion 612. The latch 612 is pressed into the latch hole 2111 of the adapter 2 by the elastic force of the latch presser 62, and the adapter 2 is locked.

The locking spring 62 may be a spring, and the lower end of the locking body portion 611 may be fixed to the bottom plate of the rail 1 or hinged to the sidewall of the rail 1. One end of the spring fixing may be fixed to the upper end of the locking body portion 611 and the other end may be fixed to the sidewall of the rail 1, whereby the locking portion 612 connected to the upper end of the locking body portion 611 may be pressed into the locking hole 2111 by elastic force.

Preferably, the locking elastic pressing member 62 is an elastic sheet with a radian, the upper end of the elastic sheet is sleeved or fixed on the upper end of the locking main body portion 611, the lower end of the elastic sheet is attached to the locking main body portion 611, and the position with the radian in the middle of the elastic sheet is abutted against the inner wall of the track 1. The locking portion 612 connected to the upper end of the locking body portion 611 may be pressed into the locking hole 2111 by the resilient piece. The lower end of the locking body portion 611 may also be fixed to the bottom plate of the rail 1 or hinged to the side wall of the rail 1.

In the above manner, the locking structure 6 is fixed, and cannot move up and down, and it is not convenient for the locking structure 6 to lock the adapter 2.

Further, to enable the closure 6 to be conveniently locked to the adapter 2. The locking structure 6 further comprises a locking fastener 63271, the locking fastener 63271 comprises a first fastener sub 631 and a second fastener sub 632, the first fastener sub 631 is fixed on the bottom plate of the rail 1, and the second fastener sub 632 is snapped 5213 on the first fastener sub 631.

The first fixing sub-member 631 includes a first sub-fixing portion 6311 horizontally disposed at a lower side thereof, and a first sub-limiting portion 6312 vertically disposed at an upper side of the first sub-fixing portion 6311, wherein the first sub-limiting portion 6312 is used for disposing the locking sliding slot 6324.

The second sub-fixing sub-member includes a first sub-engaging portion 6322, the first sub-engaging portion 6322 has an accommodating space, a supporting elastic member 64 is disposed in the accommodating space, a locking sleeve portion 613 adapted to the supporting elastic member 64 is disposed at the lower end of the locking main body portion 611, the supporting elastic member 64 is sleeved on the periphery of the locking sleeve portion 613, and the supporting elastic member 64 is used for providing an upward elastic force to the locking member 61 to upwardly spring the locking member 61.

Further, the first and second fixing sub-members 631 and 632 are provided with locking sliding grooves 6324, the lower portion of the locking main body portion 611 is provided with a locking sliding portion 614 matched with the locking sliding grooves 6324, and the locking sliding portion 614 can move up and down in the locking sliding groove 6324. The locking slide 614 can move upward in the locking slide 6324 under the elastic force of the supporting elastic member 64, whereby the locking piece 61 can be moved upward by the supporting elastic member 64. The locking slide 6324 also serves as a limit to prevent the locking slide 614 from popping up. The locking slide 614 can move downward in the locking slide 6324 under the action of external force.

Further, the upper end of the second fixing element 632 is further provided with a locking limiting groove 6322, the middle of the locking main body 611 is provided with a locking limiting portion 615 adapted to the locking limiting groove 6322, and the locking limiting groove 6322 includes a horizontal groove and a vertical groove. The connection between the horizontal slot and the vertical slot has a curvature that facilitates the smooth sliding of the locking stopper 615 in the horizontal slot and the vertical slot.

When the locking limiting part 615 is at the vertical groove, the supporting elastic piece 64 can spring the locking piece 61 upwards. When the locking limiting part 615 is located at the horizontal groove, the vertical groove limits the locking limiting part 615, and the supporting elastic piece 64 cannot spring the locking piece 61 upwards, so that the position of the locking piece 61 is limited.

Preferably, when the locking stopper 615 is in the horizontal groove, the locking portion 612 is pressed into the locking hole 2111 of the adapter 2, and the adapter 2 is locked.

Further, as shown in fig. 16, 17 and 18, the closure 6 further includes a seal defining member 65 defining the seal 4, the seal 4 has a first barrier 435 and a second barrier protruding from a side thereof adjacent to the track 1, the seal defining member 65 limits downward movement of the seal 4 when the seal defining member 65 is below the first barrier 435 and the second barrier, and the seal 4 is movable downward by an external force when the seal defining member 65 is away from below the first barrier 435 and the second barrier.

The seal limiting member 65 includes a seal body 651, an inserting portion 652 extends from a side of the seal body 651 adjacent to the locking member 61, an inserting groove 653 is provided between the seal body 651 and the inserting portion 652, and a seal unlocking portion 616 adapted to the inserting groove 653 extends from an upper end of the locking body 611.

When the locking member 61 moves up and down, the seal unlocking portion 616 moves up and down along with the up and down movement, so that it can move up and down in the seal insertion groove 653, and it is preferable that the joint between the seal insertion portion 652 and the seal unlocking portion 616 has a chamfer so that the seal unlocking portion 616 can be smoothly inserted into the seal insertion groove 653.

When the locking element 61 is on the upper side, the seal body portion 651 of the seal defining member 65 is below the first shutter 435 and the second shutter, defining the seal structure 4, preventing the seal structure 4 from moving downward.

When external force is applied to the upper end of the locking element 61, so that the locking element 61 moves downwards, the sealing unlocking portion 616 is gradually inserted into the sealing insertion groove 653 from top to bottom, the sealing limiting member 65 is driven to be far away from the positions below the first baffle 435 and the second baffle, and at the moment, the sealing structure 4 can move downwards under the action of the external force.

Preferably, the bottom of the adapter 2 extends downward to form a protrusion adapted to the locking element 61, and the adapter 2 and the sealing structure 4 can move downward at the same time by pressing the locking element 61 through the adapter 2 to apply downward force to the locking element 61.

Preferably, a seal sliding portion 654 extends from the lower end of the seal main body portion 651, two fixing sub extensions 6313 extend from the right side of the first fixing sub 631, and the two fixing sub extensions 6313 surround to form a seal sliding groove 6314 adapted to the seal sliding portion 654. The seal slide portion 654 is movable leftward and rightward within the seal slide groove 6314.

The free end of the seal defining member 65 is defined by the seal sliding portion 654 and the seal sliding groove 6314, so that the seal defining member 65 can move only in the left-right direction but not in the up-down direction, and the seal defining member 65 is located below the first shutter 435 and the second shutter or away from the first shutter 435 and the second shutter.

Further, a sealing limiting groove 655 is vertically arranged on the side surface, adjacent to the locking element 61, of the sealing main body portion 651, and a limiting rod 617 matched with the sealing limiting groove 655 is arranged on the side surface, adjacent to the sealing main body portion 651, of the locking element 61. The sealing limiting groove 655 includes a vertical groove and a horizontal groove, when the limiting rod 617 moves from top to bottom, the limiting rod 617 can slide into the horizontal groove from the vertical groove, and when the limiting rod 617 slides to the horizontal groove, the horizontal groove limits the movement of the limiting rod 617, that is, the sealing limiting member 65 can limit the upward movement of the locking member 61.

Preferably, as shown in fig. 8 and 15, when the adapter 2 is locked by the latch 6, the latch 6 is provided in four, and the four latches 6 are provided at four corners of the adapter 2, respectively. Locking holes 2111 matched with the locking portions 612 are formed in the four corners of the adapter 2, and the adapter 2 is locked when the locking portions 612 are clamped in the locking holes 2111.

Preferably, when there are four lock structures 6, an elastic connecting member 66 is further provided between the seal body portions 651 of the same-side lock structure 6, one end of the elastic connecting member 66 is connected to one seal body portion 651, and one end of the elastic connecting member 66 is connected to the other seal body portion 651. The seal defining member 65 is automatically moved under the elastic force of the elastic connecting member 66 to below the first shutter 435 and the second shutter of the locking member 61, and the seal defining member 65 restricts the downward movement of the seal structure 4.

As shown in fig. 8 and 15, the adapter 2 can be locked by the locking structure 6 when the adapter 2 is attached, and the seal structure 4 can be locked by the locking structure 6 when the adapter 2 is removed.

Further, as shown in fig. 2, 18 and 19, an inner rail plate 18 is further disposed in the rail 1 between the locking structures 6, and the inner rail plate 18 includes a bottom pressing plate 181. The pressure plate 181 is used to engage and fix the locking structure 6.

The first fixing member 271 extends to form a pressing groove 6315, four corners of the pressing plate 181 are provided with pressing portions 182 adapted to the pressing groove 6315, the pressing portions 182 extend downwards to form pressing stands 183, and the pressing stands 183 are inserted into the pressing groove 6315. The first fixing member 271 is fixed to the bottom of the adaptor 2 by the press-fitting table 183.

The prior art track 1 systems have at least one slot along the track 1. The slot may be partially covered by an elastomeric or plastic sheet, but not completely covered. This slot presents a safety hazard because of the consistent presence of the live parts in contact at all times. The existing track 1 system has the problem that the risk is relieved by arranging the electrified part far away from the notch or preventing the foreign body from being in linear contact with the electrified part through the mechanism design. The partial track 1 uses grounded conductive parts to shield the slot and current can be drawn from the grounded conductive parts to avoid and reduce the risk of electrical shock when inadvertently contacting the live part. Even with grounded conductive parts, the safety of the system is not inherent because it relies on an external circuit breaker, which, if not present, could present a fire hazard in the event of a short circuit. Further, if the ground conductive member is damaged by the erroneous operation, a short circuit may be caused by the deformation of the conductive member.

In order to solve the above problem, it is preferable that the side of the rail inner plate 18 adjacent to the cable 3 is further provided with a first inner plate 184, the first inner plate 184 is provided with a connection portion 1841 matched with the conductive structure 5, the conductive structure 5 is at the connection portion 1841, and the end of the conductive structure 5 can extend into the rail 1 and be electrically connected with the adapter 2.

The electrical connection to the adapter 2 is made only at the connection 1841 by the first inner plate 184, without touching the conductive structure 5 and the contact point 24 on the adapter 2, thus eliminating any risk of touching live parts.

Preferably, a second inner plate 185 is further provided on a side of the rail inner plate 18 away from the cable 3, and the second inner plate 185 is used for defining the sealing sliding part 654 of the sealing limiting member 65, and preventing the sealing sliding part 654 from sliding out of the first fixing member 271.

Further, a baffle or shutter may be provided on the outside of the first inner plate 184 to further ensure that the conductive structure 5 and the contact points 24 on the adapter 2 are not touched, further eliminating the risk of touching live parts. The shutter is a shutter which is matched with the first inner plate.

Furthermore, hooks 186 for engaging the first fixing element 271 are disposed on both sides of the first inner plate 184 and the second inner plate 185. The two adjacent first fixing members 271 are fixedly connected by the hooks 186.

The adapter cannot be plugged in or replaced at will or when the power is on in the existing track system, for example, the adapter is replaced by a wireless charger or a USB charger, or the adapter is replaced by a signal output point, or a British standard adapter is replaced by a Chinese standard adapter, and the like. And cannot be freely converted from the adapter to the signal output point. The adapter of the Chinese standard or the British standard can not be switched to the HDMI signal output, or the adapter of the USB charger can be switched to the USB signal output point.

While conventional track systems may implement replacement adapters, conventional track systems require that the adapters be assembled prior to leaving the factory, as well as requiring one termination for each adapter. In addition, the rail system is not easy to expand, and needs a professional to operate when power is connected. Meanwhile, after the power supply point system is installed, the power supply point system cannot be detached or replaced at will.

The following description will be given only by taking the adapter of the chinese standard as an example, and those skilled in the art may use the HDMI signal output unit or other structures instead.

When the adapter 2 is locked by the locking structure 6, in order to facilitate replacement of the adapter 2, an unlocking structure 23 is provided in the adapter 2, as shown in fig. 21, 22 and 23, the unlocking structure 23 includes an unlocking member 231 adapted to the locking hole 2111 of the adapter 2, and an unlocking driving member 232 for driving the unlocking member 231 to slide; the unlocking member 231 enters the locking hole 2111 to unlock the structure 23 from the adapter 2.

When there are four locking holes 2111, the unlocking pieces 231 corresponding to the locking holes 2111 are four, and preferably, as shown in fig. 24, the unlocking driving pieces 232 include two, and one unlocking driving piece 232 is connected to each of the two unlocking pieces 231.

One end of the unlocking driving member 232 is connected to one unlocking member 231, and the other end of the unlocking driving member 232 is connected to the other unlocking member 231.

The connection between the unlocking driving member 232 and the unlocking member 231 includes a fixed connection, a snap 5213 connection, and the like.

The unlocking driving member 232 has two states, namely a retracted state and an extended state, in the retracted state, the unlocking driving member 232 drives the unlocking member 231 to be away from the locking hole 2111, and at this time, the locking portion 612 of the locking structure 6 can be clamped at the locking hole 2111 to lock the adapter 2. In the extended state, the unlocking driving member 232 drives the unlocking member 231 to be inserted into the locking hole 2111, and the locking portion 612 of the locking structure 6 is pushed out of the locking hole 2111 by the unlocking member 231, so that the adapter 2 can be unlocked.

The unlock drive 232 may be a telescoping structure such as a loop bar, a spring tab, etc.

Preferably, the unlocking driving member 232 is an elastic spring plate having elasticity and a protrusion 2321, and when the spring plate is in a contracted state, the spring plate is in a normal state, that is, when the spring plate is not subjected to an external force, the spring plate is always in the contracted state, and at this time, the unlocking member 231 is far away from the locking hole 2111. When the protrusion 2321 of the elastic piece is pressed by an external force, the elastic piece is extended and changed from a contracted state to an extended state, the unlocking piece 231 is pressed into the locking hole 2111 by the two ends of the elastic piece, and the locking part 612 of the locking structure 6 is pressed out of the locking hole 2111 by the unlocking piece 231, so that the adapter 2 can be unlocked.

Further, as shown in fig. 24, a stopper 2311 for preventing the unlocking member 231 from sliding out excessively extends from the lower portion of the unlocking member 231.

The utility model discloses in, take out adapter 2 through that unlocking structure 23 can be convenient, change adapter 2 to the contact point 24 that combines adapter 2 and conductive structure 5's cooperation does not need the user to carry out the connection of circuit again, and adapter 2's convenience and security are changed in improvement that can be very big.

Preferably, as shown in fig. 22 and 23, a supporting member 233 for supporting the unlocking actuator 232 is provided in the adapter 2, and the supporting member 233 is provided at an upper portion of the housing 21 of the adapter 2 and at a lower side of the locking hole 2111 of the adapter 2, and is used for supporting the unlocking actuator 232, so that when the unlocking actuator 232 is a spring, excessive pressing of the spring is avoided.

Preferably, the support 233 is snap-fit 5213 to the movable inner housing 22.

Preferably, as shown in fig. 21 and 22, the unlocking driving member 232 further includes an unlocking pressing member 234 capable of moving up and down, the unlocking pressing member 234 is disposed on an upper side of the supporting member 233, an accommodating space is provided between the supporting member 233 and the housing 21, and the unlocking pressing member 234 is disposed in the accommodating space and capable of moving up and down in the accommodating space. When an external force is applied to the unlocking pressing member 234, the unlocking pressing member 234 moves downward to press the protruding portion 2321 of the elastic piece downward, the elastic piece is extended, the contracted state is changed into the extended state, both ends of the elastic piece press the unlocking member 231 into the locking hole 2111, the unlocking member 231 pushes the locking portion 612 of the locking structure 6 out of the locking hole 2111, and the adapter 2 can be unlocked.

Preferably, the unlocking pressing piece 234 includes a left unlocking pressing piece 234 and a right unlocking pressing piece 234, and an opening is formed between the left unlocking pressing piece 234 and the right unlocking pressing piece 234 for exposing the power-taking position of the adapter 2.

A problem with the prior art is that there must be a track electrical linking section. This part is usually thin. Because of the restriction on the track grooves. Therefore, the current and wattage are also limited to be equal, and are susceptible to high temperatures. At high temperature, the thin plastic part is easy to deform and even melt, so that potential safety hazards exist. Correspondingly, in order to reduce the temperature and the limitation of wattage, the size of the used material needs to be increased, and the cost is also increased. The prior art also has the problem of complex production process. The track electrical link section, which generally requires conductors for accommodating fire, ground and neutral wires, should be space-limited, and the insulation space of each conductor is very small, resulting in easy voltage instability, and very high possibility of breakdown of the insulation by voltage in case of surge (voltage transient high). Meanwhile, the insulation part also needs to be precisely controlled in the injection molding process, and if bubbles appear or the injection molding part is full, a short circuit phenomenon occurs. Therefore, the efficiency is low, the waste is high, and the overall cost is increased.

Further, in order to solve the above problem, as shown in fig. 21 and 22, the adapter 2 of the present invention is provided with a contact point 24 electrically connected to the conductive structure 5.

Preferably, as shown in fig. 22 and 25, the adaptor 2 includes a housing 21, and a power-taking member 25 disposed in the housing 21 for taking power, the power-taking member 25 is connected with a conductive intermediate member 26, an end portion of the intermediate member 26 is connected with a contact point 24, the contact point 24 protrudes out of the housing 21, and the exposed portion is electrically connected with the extension portion 511 of the cable 3 or the conductive member 51.

The contact points 24 may be more desirably provided in plural, and the connection of adjacent contact points 24 may form a straight line or a polygon.

Preferably, an insulating sealing member 2343 is arranged outside the power taking part 25. The sealing member 2343 is provided with an insertion hole adapted to the power taking member 25.

The electricity getting parts 25 comprise two or three electricity getting parts, and when the number of the electricity getting parts 25 is two, the electricity getting parts 25 are respectively a zero line electricity getting part 251 connected with a zero line and a live line electricity getting part 252 connected with a live line. When there are three current collectors 25, the power collector further includes a ground terminal current collector 253 connected to a ground line.

The zero line electricity taking part 251 comprises a two-pole zero line plug bush, the live line electricity taking part 252 comprises a two-pole live line plug bush, and two-pin plugs can be inserted into the two-pole zero line plug bush and the two-pole live line plug bush to take electricity.

The two-pole zero line plug bush and the two-pole live line plug bush are matched with the two-pin plug.

The two-pole zero line plug bush and the two-pole live line plug bush are matched with the flat and/or round two-pin plug.

The two-pole zero line plug bush and the two-pole live wire plug bush can be adapted to the two-pin plug of the flat type when being flat, and at the moment, the circular groove is arranged in the middle of the two-pole zero line plug bush and the two-pole live wire plug bush and can be adapted to the circular two-pin plug.

The zero-line electricity-taking part 251 further comprises a three-pole zero-line plug bush, the live-line electricity-taking part 252 further comprises a three-pole live-line plug bush, and the ground-line electricity-taking part 253 comprises a three-pole ground-line plug bush. The three-pin plug can be inserted into the three-pole zero line plug bush, the three-pole live line plug bush and the three-pole ground wire plug bush to get electricity.

And the tripolar zero line plug bush, the tripolar live wire plug bush and the tripolar ground wire plug bush are matched with the tripolar plug.

The tripolar zero line plug bush, the tripolar live wire plug bush and the tripolar ground wire plug bush are matched with the flat and/or circular tripolar plug.

The three-pole zero line plug bush, the three-pole live line plug bush and the three-pole ground line plug bush can be matched with the flat three-pin plug when being flat, and at the moment, the circular groove is arranged in the middle of the three-pole zero line plug bush, the three-pole live line plug bush and the three-pole ground line plug bush and can be matched with the circular three-pin plug simultaneously.

The intermediate pieces 26 corresponding to the power taking pieces 25 include two or three, and when there are two intermediate pieces 26, the intermediate pieces 26 are respectively a neutral wire intermediate piece 261 connected to the neutral wire power taking piece 251 and a live wire intermediate piece 262 connected to the live wire power taking piece 252. When there are three intermediate members 26, the intermediate members may further include a ground terminal intermediate member 263 connected to the ground terminal take-out member 253.

Preferably, the number of the contacts 24 corresponding to the intermediate member 26 includes two or three, and when there are two contacts 24, the contacts 24 are a neutral terminal contact 241 connected to the neutral wire and a live terminal contact 242 connected to the live wire, respectively. The contact points 24, when three, also include ground sub-contact points 243 for connecting ground.

The intermediate part 26 comprises a transversely arranged extension 2622, which extension 2622 is electrically connected to the pick-up element 25 for positioning the contact points 24 at the inner wall of the housing 21 of the adapter 2. Extensions 2622 may be electrically connected directly to contacts 24. But this approach does not facilitate adjusting the position of the contact point 24. I.e., neutral, line, and ground contacts 241, 242, 243 are at the same height, electrical connection of the contacts 24 to the neutral, line, and ground is not facilitated when the neutral, line, and ground are all in a single plane with the contacts 24 in the transverse direction.

Preferably, the intermediate member 26 further includes vertically disposed electrical connections 2623, the electrical connections 2623 electrically connecting the contacts 24. The contact points 24 can be provided at different locations on the power-on portion 2623. The neutral 241, live 242 and ground 243 sub-contacts can thus be set to different heights depending on the wire connection requirements. Thereby providing versatility in the manner of electrical connection. Facilitating the electrical connection of the contact points 24 with the cable 3.

The heights of the zero, live and ground terminal contacts 241, 242, 243 are different, and may be formed into various shapes, for example, the zero, live, and ground terminal contacts 241, 242, 243 may be formed into a straight line, and the straight line may be set to any inclination angle as required. The neutral terminal contact 241, the hot terminal contact 242, and the ground terminal contact 243 can form a triangle. The angle of each included angle of the triangle can be adjusted randomly according to the requirement. The neutral, live and ground wires may be adaptively arranged according to the shapes and positions of the neutral, live and ground wire sub-contacts 241, 242 and 243. The neutral contact 241, the live contact 242, and the ground contact 243 may also be manufactured by adaptive processing according to the layout shapes and positions of the neutral, live, and ground wires.

The utility model discloses a flexibility ratio greatly increased of the row's method of 2 contact points 24 of adapter to can have more the demand and improve the wattage or use the row's method of adapter 2 as the independent control and the differentiation of getting the electricity.

If the adapter 2 has no switching means, the track 1 conductors and the adapter 2 contacts will not only have physical friction, but also arcing, resulting in faster wear and greatly reducing the life and safety of the product.

A switch may also be provided within the adapter 2, and in the prior art, the switch is typically provided on a side of the housing, occupying space on the surface of the housing.

Further, as shown in fig. 26 and 27, a movable inner casing 22 capable of moving up and down is provided in the housing 21 of the adapter 2, the power taking component 25 is fixed on the movable inner casing 22, the intermediate component 26 is fixed at the bottom of the adapter 2, the intermediate component 26 is further electrically connected with a switch structure 27, and the switch structure 27 is used for controlling power on and power off of the adapter 2.

The live wire middleware 262 is electrically connected to the switch structure 27, one end of the live wire middleware 262 is connected to the live wire electricity-taking member 252, and the other end of the live wire middleware 262 is provided with a first contact 2621.

The switch structure 27 is disposed at the bottom of the housing 21 of the adapter 2, and the switch structure 27 includes a fixing member 271 and a switch member 272 movably connected to the fixing member 271. The fixing member 271 is fixed at the bottom of the casing 21 of the adapter 2 for connecting the live wire intermediate 262 and the three-pole live wire insert. The switch 272 has a second contact 2721 thereon, and the second contact 2721 is used to electrically connect the first contact 2621. When the second contact 2721 is electrically connected to the first contact 2621, the adapter 2 is powered on, and when the second contact 2721 is disconnected from the first contact 2621, the adapter 2 is powered off.

As shown in fig. 28 and 29, the switch 272 is movably connected to the fixing member 271, and the switch 272 can move up and down, rotate or move up and rotate with respect to the fixing member 271.

The switch element 272 includes a first movable end 2722 and a second movable end 2723, and a second contact 2721 is disposed on an upper surface of the first movable end 2722. The second contact 2721 can be switched between a first state and a second state, where in the first state, the second contact 2721 is electrically connected to the first contact 2621 to implement communication between the live wire middleware 262 and the live wire terminal power taking element 252 through the switch structure 27. In the second state, the second contact 2721 is disconnected from the first contact 2621 to disconnect the hot wire middleware 262 from the hot wire taking element 252 through the switch structure 27. Through the connection and the separation of the second contact 2721 and the first contact 2621, the connection and the disconnection of the live wire intermediate piece 262 and the live wire electricity taking piece 252 are realized, so that the power-on and the power-off of the adapter 2 are realized.

Preferably, as shown in fig. 28 and 29, the second movable end 2723 controls the up-and-down movement of the first movable end 2722, so that the second contact 2721 is connected to or disconnected from the first contact 2621, and the adapter 2 is powered on or powered off.

The switch member 272 can be sleeved on the fixed member 271 in a transition fit manner, and when the second movable end 2723 is pressed down, the switch member 272 moves down integrally, so that the second contact 2721 is disconnected from the first contact 2621, and the adapter 2 is powered off. When the second movable end 2723 moves upward, the switch 272 moves upward integrally, and the first movable end 2722 moves upward, so that the second contact 2721 is connected with the first contact 2621, and the adapter 2 is powered on.

The switch 272 can be hinged to the fixed member 271 such that when the second movable end 2723 is pressed, the first movable end 2722 moves upward to electrically connect the second contact 2721 with the first contact 2621 and power the adapter 2. When the second movable end 2723 moves upward, the first movable end 2722 moves downward, so that the second contact 2721 is disconnected from the first contact 2621, and the adapter 2 loses power.

Preferably, as shown in fig. 28 and 29, the switch member 272 is sleeved outside the fixed member 271, and the switch member 272 may not contact with the fixed member 271, in this case, the switch structure 27 further includes a first pressing member 273 and a second pressing member 274, the first pressing member 273 is used for supporting the switch member 272, and the second pressing member 274 is used for driving the first movable end 2722 to move up and down.

Preferably, the fixing member 271 includes a fixed bottom, a first extension 2711 connected to the live wire intermediate 262, a second extension 2712 connected to the switching member 272, the second extension 2712 connecting the third extension 2713 and a fourth extension 2714 connected to the third extension 2713. The fixed base is L-shaped, a first extension 2711 is provided at one end of the base and extends upward, a second extension 2712 is provided at the other end of the base and extends upward, a third extension 2713 is connected to the second extension 2712 and extends further in the direction of the first extension 2711, and a fourth extension 2714 is connected to the third extension 2713 and extends further upward. A first clamping groove 2715 is arranged at the joint of the second extending part 2712 and the third extending part 2713, a second clamping groove 2716 is arranged at the joint of the third extending part 2713 and the fourth extending part 2714, and a third clamping groove 2724 is arranged at the first movable end 2722 at the inner side of the second contact 2721. One end of the first pressing component is clamped at the second clamping groove 2716, and the other end of the first pressing component is clamped at the lower side of the second movable end 2723. One end of the second pressing component is clamped in the second clamping groove 2716, and the other end of the second pressing component is clamped in the third clamping groove 2724.

In the prior art, if the conditions of overload combustion and external force damage exist, a switching device is always in an open configuration, power failure cannot be achieved, and an additional power breaker must be used.

In order to solve the above problem, it is preferable that the second movable end 2723 is moved by moving the inner housing 22 up and down, and the second movable end 2723 moves the first movable end 2722 up and down by the first pressing member and the second pressing member, as shown in fig. 27. The second contact 2721 is connected to or disconnected from the first contact 2621, and the adapter 2 is powered on or powered off.

Further, the bottom of the movable inner case 22 is provided with a switch elastic member 275 for elastically moving the movable inner case 22 upward. One end of the switch elastic member 275 is fixed to the lower surface of the bottom of the movable inner housing 22, the other end is fixed to the upper surface of the bottom of the adaptor 2, a pressing portion 221 extends from the movable inner housing 22 adjacent to the switch structure 27, the pressing portion 221 is located at the lower side of the second movable end 2723 of the switch member 272, and both the first pressing member and the second pressing member have elasticity.

Preferably, the inner housing 22 is moved downward by an external force, the pressing portion 221 is far away from the second movable end 2723, the first pressing member 273 applies an upward force to the second movable end 2723, and the second pressing member 274 applies a downward force to the first movable end 2722, so that the first movable end 2722 moves downward, the second contact 2721 is disconnected from the first contact 2621, and the adapter 2 is de-energized. After the external force is removed, the inner shell 22 is moved upwards under the action of the switch elastic element 275, the pressing part 221 exerts an upward force on the second movable end 2723, so that the force exerted by the first pressing part 273 on the second movable end 2723 is disabled, the second pressing part 274 exerts an upward force on the first movable end 2722, so that the first movable end 2722 moves upwards, the second contact 2721 is connected with the first contact 2621, and the adapter 2 is powered on. This makes it possible to remove the power from the movable inner housing 22 on the lower side and to remove the power from the movable inner housing 22 on the upper side. That is, when the adapter 2 is inserted into the track 1, the contact point 24 of the adapter 2 is always connected to the conductive structure 5, there is no abrasion or no electric arc, and when the movable inner housing 22 of the adapter 2 is located at the lower side of the track 1, the second contact 2721 of the switch mechanism is disconnected from the first contact 2621 of the intermediate member 26, that is, the switch mechanism 27 is in the normally-off configuration, and when a fault occurs at the associated part of the switch of the adapter 2, or when an external force breaks out or burns due to overload, the default normally-off configuration can be automatically changed. This greatly improves the life and safety of the adapter 2 during use.

Preferably, the upper end of the adapter 2 is provided with an inner shell pressing piece 276 for pressing the movable inner shell 22, the inner shell pressing piece 276 covers the upper end of the movable inner shell 22, and the inner shell pressing piece 276 is provided with a jack matched with the power taking piece 25.

Preferably, when the movable inner housing 22 is pressed down to the underside of the adapter 2, the upper end surface of the inner housing presser 276 is flush or nearly flush with the upper end surface of the rail 1, and the adapter 2 is de-energized. When the inner case 22 is moved to the upper side of the adapter 2, the upper end surface of the inner case pressing piece 276 slightly protrudes from the upper end surface of the rail 1, and the adapter 2 is powered.

The power is lost when the movable inner shell 22 is arranged at the lower side, and the power is obtained when the movable inner shell 22 is arranged at the upper side. One skilled in the art can provide stops 4326 on the outside of the housing 21 of the adapter 2 to define the position of the inner housing 22 when moving it on the upper and lower sides.

Preferably, as shown in fig. 22, 27, 30 and 31, a stroke structure 28 for locking the position of the movable inner shell 22 is further provided in the adapter 2, the movable inner shell 22 moves to the lower end of the adapter 2, and the stroke structure 28 locks the movable inner shell 22.

An inner shell stopper 224 protrudes from the inner shell 22 adjacent to the stroke structure 28. The stroke structure 28 includes a stroke fixing member 281, a stroke sliding member 282, and a stroke limiting member 283, wherein a stroke slot 2811 is provided in the stroke fixing member 281, a stroke limiting block 2812 is provided in the middle of the stroke slot 2811, and a limiting slot 2813 is provided at the lower side of the stroke limiting block 2812. One end of the stroke slider 282 may slide counterclockwise in the stroke slot 2811, and the other end of the stroke slider 282 may overlap the power sub of the stroke limiter 283, so that the stroke limiter sub 2833 of the stroke limiter 283 locks the movable inner housing 22 at the upper side of the limiting table 5224.

The stroke fixing piece 281 is fixed at the bottom of the adapter 2, a stroke groove 2811 is arranged in the middle of the stroke fixing piece 281, a stroke limiting block 2812 is arranged in the middle of the stroke groove 2811, and a limiting groove 2813 is arranged on the lower side of the stroke limiting block 2812.

The stroke slider 282 includes a stroke slider 2821 provided in the front-rear direction and a stroke link 2822 provided in the left-right direction, and an end of the stroke slider 2821 is provided in the stroke groove 2811 and is movable counterclockwise around the stroke stopper 2812 in the stroke groove 2811.

As shown in fig. 32, five limit points are set in the stroke slot 2811 according to the position of the stroke slider 2821 in the stroke slot 2811, which are a first limit point 28111, a second limit point 28112, a third limit point 28113, a fourth limit point 28114 and a fifth limit point 28115. When the stroke slider 2821 is located at the first limit point 28111, the inner housing 22 is moved to the uppermost end of the adapter 2, and the adapter 2 is powered on and normally open. When the inner case 22 is pushed and moved by an external force, the stroke slider 2821 passes through the second stopper 28112 from the first stopper 28111 to the third stopper 28113, and the third stopper 28113 is the lowest end of the moving position of the inner case 22. When the external force is removed, the inner housing 22 is pushed upward by the switch elastic member 275, and the stroke sliding part 2821 slides from the third limit point 28113 to the fourth limit point 28114, at this time, the adapter 2 is de-energized, and the normally open state is changed to the normally closed state.

When the inner housing 22 is pushed down again by an external force, the stroke slider 2821 slides from the fourth limit point 28114 to the fifth limit point 28115, the external force is removed, the inner housing 22 is pushed up under the action of the switch elastic element 275, and when the inner housing 22 moves to the uppermost end, the stroke slider 2821 slides from the fifth limit point 28115 to the fourth limit point 28114, so that the adapter 2 is powered on. The normally closed state is converted into the normally open state.

The stroke limiting member 283 comprises a fixing shaft 2831, a torsion spring 2832 sleeved on the fixing shaft 2831, and a stroke limiting sub-member 2833.

The stroke limiting sub-element 2833 comprises a stroke limiting part 28331 and a power part 28332 which forms an included angle with the stroke limiting part 28331. The stroke limiting portion 28331 is disposed on the side of the movable inner casing 22, corresponding to the inner casing limiting portion 224 on the movable inner casing 22, for limiting the position of the movable inner casing 22. The side of the stroke limiting part 28331 far from the movable inner shell 22 is provided with a torsion spring 2832 groove, one end of the torsion spring 2832 is propped in the torsion spring 2832 groove, and the other end of the torsion spring 2832 is propped on the inner wall of the shell 21 of the adapter 2, so as to provide acting force for the stroke limiting sub-part 2833. The power unit 28332 is provided corresponding to an end of the stroke link 2822. The stroke link 2822 of the stroke slider 282 applies a force to the support power portion 28332 of the stroke stopper 2833, so that the stroke stopper 2833 can rotate about the fixed shaft 2831.

When the inner housing stopper 224 of the inner housing 22 is moved by an external force to press the stroke stopper 28331 to the side of the movable inner housing 22, the stroke slider 2821 passes through the second stopper 28112 from the first stopper 28111 to the third stopper 28113, and the third stopper 28113 is the lowest end of the moving position of the movable inner housing 22. When the stroke sliding part 2821 is at the third limit point 28113, the stroke linking part 2822 does not contact with the power part 28332, and when the lowest end of the stroke limiting part 28331 is higher than the inner shell limiting part 224, the stroke limiting part 28331 is sprung to the position right above the inner shell limiting part 224 under the action of the torsion spring 2832, and the switch elastic piece 275 pushes up the movable inner shell 22 after the external force is removed, so that the stroke sliding part 2821 slides to the fourth limit point 28114 from the third limit point 28113, and at this time, the stroke limiting part 28331 butts against the inner shell limiting part 224 to prevent the movable inner shell 22 from moving upwards. At this time, the stroke link 2822 contacts the power part 28332. The adapter 2 is switched from the normally open state to the normally closed state.

The inner case 22 is pushed down again by external force, the stroke sliding part 2821 slides from the fourth limit point 28114 to the fifth limit point 28115, the stroke linkage part 2822 butts against the power part 28332, the power part 28332 overcomes the acting force of the torsion spring 2832 to rotate the lower end of the stroke limiting part 28331 in the direction away from the moving inner case 22, the stroke limiting part 28331 is separated from the inner case limiting part 224, and the switch elastic part 275 pushes the moving inner case 22 to the upper end under the condition that the stroke limiting part 28331 does not block. The adapter 2 is switched from the normally closed state to the normally open state.

A U-shaped pressing part 2823 protrudes from the middle of the stroke link part 2822, an inner shell extension part 222 extends downward from the bottom of the movable inner shell 22, an inner shell lower groove 223 matched with the stroke slider 282 is formed at the inner shell extension part 222, and the pressing part 2823 of the stroke slider 282 is arranged in the inner shell lower groove 223 and can move in the inner shell lower groove 223. The travel distance of stroke slide 282 can be limited by inner housing lower groove 223. Ensuring that travel slide 282 moves counterclockwise within travel slot 2811.

Preferably, the stroke stopper 2812 is hook-shaped, and the limiting groove 2813 is a bending part of the stroke stopper 2812.

Preferably, a detour 2814 protrudes upwards at the lower side of the stroke slot 2811, and the detour 2814 facilitates the sliding of the stroke slider 282 to the limit slot 2813.

Preferably, a retaining portion 2815 extends upward from the limit groove 2813, and the retaining portion 2815 is used for preventing the stroke slider 282 from slipping out of the limit groove 2813.

Preferably, the stroke fixing piece 281 is further provided with an installation groove 2816 for installing the stroke sliding piece 282. The stroke slide 2821 may be inserted into the stroke slot 2811 from the mounting slot 2816 to facilitate installation of the stroke slide 282.

Preferably, the housing 21 of the adaptor 2 includes an upper housing 211 and a lower housing 21212, one end of the switch elastic member 275 is connected to the bottom upper surface of the lower housing 21212, and the other end of the switch elastic member 275 is connected to the bottom lower surface of the movable inner housing 22. The switch structure 27 and the stroke structure 28 are both arranged between the movable inner shell 22 and the inner wall of the adapter 2, the power taking part 25 and the middle part 26 are both fixed in the movable inner shell 22, the support 233 is buckled 5213 at the upper end of the movable inner shell 22, and the unlocking structure 23 is arranged at the upper side of the support 233. The lower housing 21212 is snap-fit connected to the upper housing 211, the lower housing 21212 surrounds the unlocking structure 23, the unlocking pressers 234 of the unlocking structure 23 protrude from the lower housing 21212, and the inner housing pressers 276 are disposed between the unlocking pressers 234.

Preferably, a display structure 29 capable of emitting light is further provided in the housing 21 of the adapter 2. The display structure 29 includes a fixing plate 291 and a display 292 on the fixing plate 291, and the display 292 may be an LED lamp, a lamp strip, or other electrically-conductive light emitting device. It is shown that electrical connection to the adapter 2 is possible and that a display structure 29 may be provided at the support member 233, the display member 292 being simultaneously energized when the adapter 2 is energized, enabling display of the energized state of the adapter 2.

Based on the same concept, it is also possible to arrange a display structure within the track 1.

The utility model discloses in, provide multiunit single phase power supply for adapter 2. The transmittable power can be obviously increased, and the condition that a single-phase power supply is overloaded is avoided. So that a stable power supply can be provided to the adapter 2. Through the cooperation of conducting structure 5 and contact point 24 can be quick with cable 3 and adapter 2 electricity connection, the installation does not need professional technical personnel, has reduced the mistake that the people was installed and has appeared. Cooperate the use with above-mentioned adapter 2 and track 1, adapter 2's up end and track 1's up end parallel and level can be avoided adapter 2 to stand out in track 1, reduce adapter 2's occupation space to avoid the mistake to touch adapter 2, improve adapter 2's security, reduced adapter 2's fault point. And when the state is opened through the sealing structure 4, the adapter 2 is exposed to be convenient for taking electricity. When the rail is in a closed state, the opening is sealed by the sealing structure 4 at the closing position, and dust is prevented from entering the accommodating space in the rail 1. And the adapter 2 can be quickly installed in the track 1 through the locking structure 6, so that the installation efficiency is greatly improved. Taking out adapter 2 through unlocking structure 23 can be convenient, changing adapter 2, the convenience and the security of adapter 2 are changed to improvement that can be very big. A switch structure 27 is provided in the adapter 2, the power-taking member 25 and the switch structure 27 are connected through the intermediate member 26, and the connection between the switch structure 27 and the intermediate member 26 controls the power-on and power-off of the adapter 2. The switch structure 27 and the intermediate member 26 do not generate physical friction, so that the generation of electric arc is avoided, and the service life and the safety of the adapter 2 can be greatly improved. The switch structure 27 is combined with the movable inner housing 22, the movable inner housing 22 controls the adapter 2 to be powered on and powered off, when the movable inner housing 22 is pressed down to the lower side of the adapter 2, the upper end surface of the inner housing pressing piece 276 is flush with or close to the upper end surface of the track 1, and the adapter 2 is powered off. When the inner case 22 is moved to the upper side of the adapter 2, the upper end surface of the inner case pressing piece 276 slightly protrudes from the upper end surface of the rail 1, and the adapter 2 is powered. Therefore, the adapter 2 can be flush with the upper end face of the track 1 when power is lost, and occupied space is reduced. A stroke structure 28 is further arranged in the adapter 2, when the switch structure 27, the movable inner shell 22 and the stroke structure 28 are combined, the position of the movable inner shell 22 can be locked through the stroke structure 28, and therefore the movable inner shell 22 can be powered off when being arranged on the lower side of the adapter 2 and powered on when being arranged on the upper side of the adapter 2.

The above is only the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the same principle as the present invention.

Claims (8)

1. A power distribution apparatus, comprising: the adapter comprises a track and adapters arranged in the track, cables for supplying power and/or transmission cables for transmitting data are arranged on the outer side of the track, at least one group of cables or transmission cables is arranged, and one group of cables or transmission cables is connected with at least one adapter; the group of cables comprises a circuit comprising a zero line and a live line, and the live line is provided with a plurality of lines; a plurality of live wires share one zero line; each live wire is correspondingly connected with at least one adapter.

2. The power distribution device of claim 1, wherein at least one set of the electrical and/or transmission cables is provided on each of the front, rear and/or underside of the track.

3. The power distribution device of claim 1, wherein the transmission cable comprises an HDMI cable, a USB cable network CAT6 cable, a telephone cable CAT3 cable, a coaxial cable, and/or a DIN cable.

4. The power distribution apparatus of claim 1, wherein the plurality of wires of a set of cables may be disposed on a front side, a rear side, and/or a lower side of the track, respectively.

5. The power distribution device according to claim 1, wherein the rail comprises a first side plate and a second side plate, a first outer plate and a second outer plate are respectively clamped on outer sides of the first side plate and the second side plate, a first accommodating space is formed between the first outer plate and the first side plate, a second accommodating space is formed between the second outer plate and the second side plate, and the first accommodating space and the second accommodating space are respectively provided with the cable or the transmission cable.

6. The power distribution apparatus as claimed in claim 5, wherein the left and right ends of the rail are further provided with left and right sealing covers for sealing the left and right ends of the rail, the first and second receiving spaces.

7. The power distribution apparatus of claim 1, wherein a side of the track adjacent to a cable or transmission cable is provided with a connection portion where the cable or transmission cable is connected to an adapter.

8. The power distribution apparatus according to claim 7, wherein a shutter or shutter is provided at the connection portion.

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