CN112277673A

CN112277673A - Channel selector and PDU system

Info

Publication number: CN112277673A
Application number: CN202011106652.5A
Authority: CN
Inventors: 李明; 何青; 袁江辉; 张程飞; 徐立雄
Original assignee: National Innovation Energy Automobile Intelligent Energy Equipment Innovation Center Jiangsu Co Ltd
Current assignee: National Innovation Energy Automobile Intelligent Energy Equipment Innovation Center Jiangsu Co Ltd
Priority date: 2020-10-16
Filing date: 2020-10-16
Publication date: 2021-01-29

Abstract

The invention relates to the field of charging, in particular to a channel selector and a PDU system. A channel selector, a mobile carrier, a finger assembly slidably mounted within said mobile carrier; the contact finger assembly comprises a substrate which is assembled in the movable carrier in a sliding mode and a contact finger structure formed on the first surface of the substrate, a pressure piece is arranged on the second surface of the substrate, and the pressure piece acts on the contact finger structure through the substrate to be electrically connected; the second surface of the substrate is also provided with the absorbing part, and the acting direction of the absorbing part is opposite to that of the pressure part so as to disconnect the electric connection of the contact finger structure. The technical problem that in the technology, each channel selector is correspondingly provided with one driving unit, so that the PDU system structure is complex is solved.

Description

Channel selector and PDU system

Technical Field

The invention relates to the field of charging, in particular to a channel selector and a PDU system.

Background

With the progress of society and the enhancement of environmental awareness, electric vehicles are more and more concerned by people, the charging problem of electric vehicles is related to the popularization and promotion of electric vehicles, and in order to charge electric vehicles with different capacities, many companies begin to research and manufacture charging stacks capable of distributing power. The core unit of the flexible power distribution system of the existing charging stack is PDU, the PDU is used as an intermediate junction of a power supply and a charging terminal, the connection and distribution functions are achieved, and the PDU system of the existing channel selector has the following problems:

1. one driving unit is correspondingly configured for each channel selector, so that the PDU system structure is complicated, and the cost is increased.

2. When the selector of PDU carries out electric power switching, the electrode of selector and power copper bar or charge terminal's copper bar direct contact, the great friction can take place for the direct contact, leads to the damage of above-mentioned copper bar surface coating, leads to the copper bar current-carrying capacity to diminish then, produces the electric energy loss.

And 3. adopting a mode that a single relay/contactor forms an M xN array or a mode that a plurality of fixed multi-contact relays/contactors are adopted. The direct adoption of the relay array has the disadvantages that the using amount of the relays is large, the cost is high, M x N complex control circuits are needed, and the scheme is quite complex in structure, electricity, hardware and software, inconvenient for expanding channels and large in occupied space.

4. A fixing device needs to be arranged between the channel selector and the power copper bar, so that the channel selector is prevented from being separated from the power copper bar and falling to the ground to be damaged.

Disclosure of Invention

In order to solve the technical problem that in the prior art, each channel selector is correspondingly provided with one driving unit, so that the structure of a PDU system is complex, the invention provides a channel selector and a PDU system, and the technical problem is solved. The technical scheme of the invention is as follows:

a channel selector, a mobile carrier, a finger assembly slidably mounted within said mobile carrier; the contact finger assembly comprises a substrate which is assembled in the movable carrier in a sliding mode and a contact finger structure formed on the first surface of the substrate, a pressure piece is arranged on the second surface of the substrate, and the pressure piece acts on the contact finger structure through the substrate to be electrically connected; the second surface of the substrate is also provided with the absorbing part, and the acting direction of the absorbing part is opposite to that of the pressure part so as to disconnect the electric connection of the contact finger structure.

According to one embodiment of the invention, the pressure piece is a pressure spring or a homopolar permanent magnet, and the absorbing piece is an electromagnet or a permanent magnet.

According to one embodiment of the invention, a boss extends from the second surface of the substrate, and the suction element is fixed on the end surface of the boss.

A PDU system comprises the channel selector.

According to an embodiment of the present invention, further comprising: the copper bar assembly comprises a plurality of input copper bars and a plurality of output copper bars, the input copper bars and the corresponding output copper bars are formed to be perpendicular to each other in a non-coplanar manner, and the moving carrier is assembled on the input copper bars or the output copper bars in a sliding manner; the mobile module comprises a magnetic clamping jaw and a driving unit for driving the magnetic clamping jaw to move, the magnetic clamping jaw is attracted to the attraction piece to be electrically connected in a disconnection mode, and the driving unit drives the mobile carrier to move to an appointed position.

According to one embodiment of the invention, the contact finger assembly comprises a long contact finger and a short contact finger, the long contact finger is electrically connected with the input copper bar or the output copper bar far away from the mobile carrier, and the short contact finger is electrically connected with the input copper bar or the output copper bar close to the mobile carrier.

According to one embodiment of the invention, the mobile carrier comprises a base body, the base body is provided with a through chute, and the chute is in sliding fit with the input copper bar or the output copper bar.

According to one embodiment of the invention, an accommodating space is formed on one side of the base body, the base plate is arranged in the accommodating space, the base body is provided with a guide post, the base plate is assembled on the guide post in a sliding manner, the accommodating space is provided with a cover plate, the cover plate is provided with a protrusion, one end of the pressure piece is sleeved on the guide post, and the other end of the pressure piece is sleeved on the protrusion.

According to one embodiment of the invention, the base body is formed with a guide sleeve therethrough, the fingers of the finger structure being in sliding engagement with the guide sleeve.

According to one embodiment of the invention, the magnetic clamping jaw comprises a mounting seat and an electromagnet fixed on the mounting seat, and the electromagnet is used for attracting the attraction piece.

According to one embodiment of the invention, the drive unit is a robot, and the magnetic gripping jaws are arranged at the end of the robot.

According to one embodiment of the invention, the drive unit comprises a support frame and a slider slidably mounted on the support frame, the slider being fitted with the magnetic clamping jaws.

According to one embodiment of the invention, the drive unit comprises: the longitudinal driving module comprises at least two vertical support rods, a longitudinal sliding block is assembled on the vertical support rods in a sliding mode, and the longitudinal sliding block is driven by a longitudinal driving motor; the horizontal driving module, the horizontal driving module includes horizontal vaulting pole, the both ends of horizontal vaulting pole are fixed in vertical slider, it is equipped with horizontal slider still to slide on the horizontal vaulting pole, horizontal slider is driven by horizontal driving motor, assemble on the horizontal slider the magnetism clamping jaw.

Based on the structure, the invention can realize the technical effects that:

1. the channel selector comprises a movable carrier, a contact finger assembly and an attraction piece, wherein the contact finger assembly is assembled in the movable carrier in a sliding mode; in addition, the second face of base plate still is formed with the piece of inhaling, inhale the action direction of piece and the effect opposite direction of pressure piece so that touch finger structure disconnection electricity is connected, so, under the effect of external force, when the removal carrier is taking its above touch finger subassembly to slide, touch finger structure can not rub with the copper bar contact, lead to the damage of above-mentioned copper bar surface coating, then lead to the copper bar current-carrying capacity to diminish, produce the electric energy loss, furtherly, the piece sharing drive arrangement is inhaled to the passageway selector accessible, drive arrangement removes the carrier with the help of the drive of the piece of inhaling and slides to the assigned position.

2. The boss extends out of the second surface of the base plate, the suction piece is fixed on the end surface of the boss, the height of the boss can be set according to actual requirements, the height of the boss is higher than the highest surface of the movable carrier, and when the boss penetrates through the avoidance hole in the movable carrier and the driving device is connected with the suction piece, the boss is convenient to prevent one end of the suction piece from extending into the driving device.

3. The PDU system comprises a channel selector, a copper bar assembly and a moving module, wherein the copper bar assembly comprises a plurality of input copper bars and a plurality of output copper bars, the input copper bars and the corresponding output copper bars are perpendicular to each other in a different surface mode, a moving carrier is assembled on the input copper bars or the output copper bars in a sliding mode, the moving module comprises a magnetic clamping jaw and a driving unit for driving the magnetic clamping jaw to move, the magnetic clamping jaw attracts and closes a piece to break electric connection, and the driving unit drives the moving carrier to move to a specified position. Compare in the relay, this application is connected and is broken off through magnetism clamping jaw and power supply unit, controls the switch-on or the disconnection of magnetism clamping jaw and attraction piece to realize the disconnection and the switch-on of electricity connection, need not fixed connection, the flexibility is good, and the suitability is strong. In addition, the magnetism clamping jaw is by the help of inhaling to close the piece and touch the electricity of indicating structure and copper bar with the disconnection, and when can avoiding removing the carrier like this and remove, touch and indicate structure and copper bar direct contact, great friction can take place for direct contact, leads to the damage of above-mentioned copper bar surface coating, leads to the copper bar current-carrying capacity to diminish then, produces the electric energy loss.

4. The movable carrier comprises a base body, wherein the base body is provided with a through sliding groove, and the input copper bar or the output copper bar penetrates through the sliding groove to form sliding fit. In addition, one side of base member is formed with accommodation space, place accommodation space in the base plate in, be equipped with the guide post on the base member, the base plate sliding assembly is on the guide post, be equipped with the apron on the accommodation space, be equipped with the arch on the apron, a pot head of pressure piece is established on the guide post, another pot head of pressure piece is established in the arch, so, when charging, the pressure piece can press the base plate so that the structure of the contact finger above that keeps and the copper bar contact, and then avoids the PDU system to rock and cause the interrupt of charging.

5. The driving unit of the invention can be set as a robot, the robot is set in the channel selector, the magnetic clamping jaw is set at the end of the robot, the robot can drive the magnetic clamping jaw to move by the mechanical arm, the movement of the magnetic clamping jaw can drive the movable carrier to slide to the designated position on the input copper bar or the output copper bar, in addition, the driving unit can also be set as a supporting frame and a sliding block which is assembled on the supporting frame in a sliding way, the sliding block is assembled with the magnetic clamping jaw, concretely, the driving unit comprises: vertical drive module and horizontal drive module, vertical drive module includes two at least vertical vaulting poles, vertical slider of sliding assembly on the vertical vaulting pole, vertical slider is removed by vertical driving motor drive horizontal drive module, so that the position of horizontal drive module and channel selector corresponds, horizontal drive module includes horizontal vaulting pole, the both ends of horizontal vaulting pole are fixed in vertical slider, it is equipped with horizontal slider still to slide on the horizontal vaulting pole, assemble the magnetism clamping jaw on the horizontal slider, horizontal slider is by the position of horizontal driving motor drive in order to adjust the magnetism clamping jaw, and then make the position of magnetism clamping jaw with the piece of combining of inhaling correspond, thereby it slides on the copper bar to drive the removal carrier through the magnetism clamping jaw with the magnetism power of piece of combining of inhaling.

Drawings

FIG. 1 is a diagram illustrating a PDU system according to the prior art;

FIG. 2 is a schematic diagram of a channel selector according to the first embodiment;

FIG. 3 is a schematic structural diagram of a mobile carrier according to the first embodiment;

FIG. 4 is a schematic structural diagram of a finger assembly according to the first embodiment;

FIG. 5 is a schematic structural diagram of a finger structure according to the first embodiment;

FIG. 6 is a schematic structural view of a pressure member according to the first embodiment;

FIG. 7 is a schematic structural diagram of a short finger of the second embodiment;

FIG. 8 is a schematic structural diagram of a long finger according to the second embodiment;

FIG. 9 is a diagram illustrating a PDU system according to a second embodiment;

FIG. 10 is a schematic structural diagram of a robot according to the second embodiment;

FIG. 11 is a schematic structural diagram of a cross module according to the second embodiment;

FIG. 12 is a schematic structural view of a magnetic jaw of the second embodiment;

FIG. 13 is a schematic view of the magnetic chuck and the channel selector in the second embodiment;

FIG. 14 is a structural diagram of the cross section of FIG. 13 in the second embodiment;

in the figure: 1' -PDU robot module; 2' -a guide rail; 3' -a drive assembly; 31' -a drive means; 32' -rack gear; 1-moving a carrier; 11-a frame body; 12-a substrate; 121-guide posts; 122-a guide sleeve; 1221-a first guide sleeve; 1222-a second guide sleeve; 123-chute; 124-cover plate; 1241-bump; 2-a finger assembly; 21-a substrate; 211-boss; 2111-groove; 212-a pressure member; 213-a guide hole; 22-finger structure; 221-short contact finger; 222-long finger; 223-a conductive block; 2231-mounting holes; 3-a suction piece; 4-copper bar assembly; 41-input copper bar; 42-output copper bar; 5-a moving module; 51-a magnetic jaw; 511-a mount; 512-an electromagnet; 513 mounting a ring; 52-a drive unit; 52 a-a cross module; 52a 1-transverse drive module; 52a 2-longitudinal drive module; 52 b-robot.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.

The first embodiment is as follows:

as shown in fig. 1, the PDU system in the prior art includes a PDU robot module 1 ', a driving assembly 3' and a guide rail 2 ', and the PDU robot module 1' slides along the guide rail 2 under the driving action of the driving assembly 3. Specifically, the driving assembly 3 ' includes a driving device 31 ' and a rack 32 ', a driving end of the driving device 31 ' is connected with a gear, the rack 32 ' is parallel to the guide rails 2 ', the rack 32 ' is located between the two guide rails 2, the driving device 31 ' drives the gear to rotate, and the rotation of the gear can drive the PDU robot module 1 ' to slide along the guide rails 2 ' due to the engagement of the gear and the rack 32 '. Thus, each PDU robot module 1 'needs to be provided with a corresponding driving component 3', which complicates the PDU system structure and further increases the cost.

As shown in fig. 2 and 3, the channel selector of the embodiment includes a moving carrier 1, a finger assembly 2 and a suction member 3, wherein the finger assembly 2 is slidably mounted in the moving carrier 1, specifically, the finger assembly 2 includes a substrate 21 slidably mounted in the moving carrier 1 and a finger structure 22 formed on a first surface of the substrate 21, a pressure member 212 is disposed on a second surface of the substrate 21, and the pressure member 212 acts on the finger structure 22 through the substrate 21 to enable the finger structure 22 to slide in the moving carrier 1 and electrically connect; in addition, the second surface of the base plate 21 is formed with an engaging member 3, and the engaging member 3 acts in a direction opposite to that of the pressure member 212 to electrically disconnect the finger structures 22.

It can be known from the above that, the channel selector of this example can switch the charging connection position by means of the cooperation of the attraction part 3 and the external driving device, the driving device can be configured with an adapting part attracted to the attraction part 3, such as an electromagnet, so that the driving device is first connected to the attraction part 3, then the attraction part 3 is used to drive the moving carrier 1 to slide to a specified position, the driving device is disconnected from the attraction part 3, and then another channel selector is driven, so that a plurality of channel selectors share one driving device, furthermore, when the attraction part 3 drives the moving carrier 1 to slide with the finger assemblies 2 thereon, the finger structures 22 will not contact and rub with the copper bar, thereby avoiding the damage of the surface coating of the copper bar, and further avoiding the reduction of the current-carrying capacity of the copper bar and the generation of electric energy loss.

According to one embodiment of the present invention, as shown in fig. 3, the mobile carrier 1 includes a frame body 11 and a base body 12, the frame body 11 is disposed on one side of the base body 12, preferably, the base body 12 and the frame body 11 are integrally formed, the frame body 11 and the base body 12 form a frame body with a receiving space inside, and the receiving space receives the contact finger assembly 2.

The contact finger assembly 2 of the present embodiment is composed of a sliding substrate 21 and a contact finger structure 22 formed on a first surface of the substrate 21, wherein, as shown in fig. 3 and 6, the substrate 21 of the present embodiment is slidably mounted in a receiving space of the movable carrier 1, specifically, the substrate 21 is movably disposed in the receiving space, a guide post 121 is disposed on the base 12, the guide post 121 extends from the base 12, a guide hole 213 corresponding to the guide post 121 is disposed on the substrate 21, the substrate 21 is inserted on the guide post 121 by the guide hole 213 to form a sliding fit, so that the substrate 21 can only slide along the guide post 121, and the guide post 121 guides the movement of the substrate 21. Preferably, the guide posts 121 are provided in four, and the four guide posts 121 are provided at positions corresponding to corners of the base plate 21, so that the balance of the movement of the base plate 21 is ensured.

Through the structure, the substrate 21 drives the contact finger structure 22 to move so as to control the charging loop to be switched on or switched off.

The substrate 21 of this embodiment electrically connects the finger structures (22) under the action of the pressure element 212, the pressure element 212 is assembled in this way, the cover plate 124 is disposed on the accommodating space of this embodiment, the cover plate 124 is fixedly assembled on the frame body 11, a protrusion 1241 corresponding to the guide post 121 is formed on one side of the substrate 21 close to the cover plate 124, the protrusion 1241 and the guide post 121 are in the same straight line in the vertical direction, one end of the pressure element 212 of this embodiment is sleeved on the guide post 121 to abut against the substrate 21, the other end of the pressure element 212 is sleeved on the protrusion 1241 to abut against the cover plate 124, thus, the pressure member 212 can press the base plate 21 to make the finger structure 22 on it extend out of the mobile carrier 1 and contact the copper bar, thereby switch on the return circuit that charges, preferably, pressure piece 212 is the pressure spring, and the pressure spring can make and touch finger structure 22 and sticis on the copper bar, avoids the PDU system because of rocking the interrupt that causes charging. Of course, the pressure member 212 may also be provided with permanent magnets of the same polarity, which are fixedly mounted on the guide posts 121 and the protrusions 1241, respectively, and abut against the base plate 21 and the cover plate 124 by the magnetic force of the same polarity repelling each other.

The substrate 21 of this embodiment is to electrically disconnect the finger structure (22) by means of the attraction part 3, as shown in fig. 2 and 4, the attraction part 3 of this embodiment is installed on the substrate 21 by means of the boss 211, specifically, the second surface of the substrate 21 is provided with the boss 211, the attraction part 3 is fixed on the end surface of the boss 211, further, the boss 211 is set to be a column, the installation end of the boss 211 is recessed inwards to form the groove 2111, the attraction part 3 is placed in the groove 2111, and the height of the boss 211 can be set according to actual needs. So, drive arrangement's electro-magnet can with the actuation 3 actuations of actuation piece, and the pre-tightening force that actuation piece 3 overcome pressure piece under drive arrangement's effect drives the contact finger structure on the base plate 21 and keeps away from the copper bar to the disconnection electricity is connected.

Preferably, the attraction member 3 is a permanent magnet.

Preferably, the second surface of the substrate 21 directly extends to form the boss 211, and the two are integrally formed, so that the number of connecting pieces arranged between the substrate 21 and the boss 211 can be reduced.

Example two:

as shown in fig. 9, the present embodiment also provides a PDU system, which includes the channel selector described above.

The PDU system still includes copper bar subassembly 4, copper bar subassembly 4 includes a plurality of input copper bars 41 and a plurality of output copper bars 42, input copper bar 41 forms into the antarafacial perpendicular with corresponding output copper bar 42, parallel arrangement between a plurality of input copper bars 41, parallel arrangement between a plurality of output copper bars 42, input copper bar 41 and output copper bar 42 are the crisscross array of cross and arrange on the antarafacial, so, there is not interference each other in input copper bar 41 and output copper bar 42.

As shown in fig. 3 and 9, the base 12 of the mobile carrier 1 of this embodiment is provided with a through chute 123, the input copper bar 41 is inserted into the chute 123 to form a sliding fit, preferably, the chute 123 is set to be a square structure matching with the input copper bar 41, due to the rotation stopping characteristic of the square structure, when the base 12 and the devices thereon slide on the input copper bar 41 under the action of external force, the base 12 does not shake and separate from the input copper bar 41, compared with the prior art in which a fastening device is required to be arranged between the channel selector and the power copper bar to prevent the channel selector from separating from the copper bar and falling to the ground and further being damaged, the PDU system of this embodiment does not need a fastening device, thereby simplifying the structure and saving the cost.

In order to adapt to the copper bar assembly 4, the contact finger structure 22 of the present embodiment includes a long contact finger 222 and a short contact finger 221, the long contact finger (222) is electrically connected to the input copper bar (41) or the output copper bar (42) far away from the moving carrier (1), the short contact finger (221) is electrically connected to the input copper bar (41) or the output copper bar (42) near the moving carrier (1), the contact finger structure 22 of the present embodiment is assembled in this way, as shown in fig. 7 and 8, the base 12 of the present embodiment is formed with a through guide sleeve 122, the guide sleeve includes a first guide sleeve 1221 and a second guide sleeve 1222, one end of the first guide sleeve 1221 penetrates through the base 12, the long contact finger 222 is disposed on the first guide sleeve 1221, one end of the second guide sleeve penetrates through the sliding groove 123, and the short contact finger 221 is disposed on the second guide sleeve 1222.

Further, the long contact finger 222 and the short contact finger 221 of the present embodiment are connected by the conductive block 223, so that the distance between the long contact finger 222 and the short contact finger 221 can be set according to actual requirements.

Preferably, the conductive block 223 is provided with a mounting hole 2231, and a temperature sensor may be provided on the mounting hole 2231 for monitoring the temperature in the channel selector.

As shown in fig. 10, 12, 13 and 14, in order to drive the moving carrier 1 to slide on the copper bar, the PDU system of this embodiment further includes a moving module 5, the moving module 5 includes a magnetic clamping jaw 51 and a driving unit 52 for driving the magnetic clamping jaw 51 to move, the driving unit 52 drives the moving carrier 1 to slide on the input copper bar 41 or the output copper bar 42 by means of the magnetic clamping jaw 51, specifically, the driving unit 52 is disposed at one side of the copper bar assembly 4, the magnetic clamping jaw 51 includes a mounting seat 511 and an electromagnet 512, one end of the mounting seat 511 is connected with the driving unit 52, an electric wire connected with the electromagnet 512 is disposed in the mounting seat 511, the other end of the mounting seat 511 forms a mounting ring 513 penetrating to the electromagnet 512, the diameter of the mounting ring 513 is smaller than that of the electromagnet 512, so that the electromagnet 512 cannot be separated from the mounting ring 513 from the mounting seat, the mount pad 511 attracts each other with the help of the permanent magnet on the attraction piece 3 with the help of the magnetic force, drive the boss 211 and the base plate 21 and touch the finger to move towards the mount ring 513, because the height of the boss 211 of this embodiment is higher than the highest face of the moving carrier 1, after the boss 211 passes through the avoiding hole arranged on the moving carrier 1, one end of the protruding moving carrier 1 of the boss 211 can stretch into the mount ring 513, so as to make the touch finger and the copper bar disconnected and electrically connected, in addition, because one end of the pressure spring leans against the cover plate 124 of the moving carrier 1, the other end of the pressure spring leans against the base plate 21, the movement of the base plate 21 will drive the moving carrier 1 to move together, and the driving unit 52 drives the magnetic clamping jaw 51 and the. When the electromagnet 512 is powered off, the electromagnet 512 is disconnected from the suction piece 3, and the base plate 21 and the contact finger structure 22 on the base plate move towards the copper bar under the action of the pressure spring, so that the contact finger structure 22 is electrically connected with the copper bar again, and a charging loop is formed.

According to an embodiment of the driving unit 52 of the present invention, as shown in fig. 10, the driving unit 52 of the embodiment may be configured as a robot 52b, the robot 52b is disposed at one side of the copper bar assembly 4, the magnetic clamping jaw 51 is disposed at an executing end of the robot 52b, the robot 52b may drive the magnetic clamping jaw 51 to move through a mechanical arm thereof, the movement of the magnetic clamping jaw 51 may drive the moving carrier 1 to slide to a designated position on the input copper bar 41 or the output copper bar 42, so as to cover the entire area of the copper bar assembly 4 for different charging positions, and the mechanical arm may drive different channel selectors to move on the copper bar assembly 4.

According to another embodiment of the driving unit 52 of the present invention, the driving unit 52 comprises a supporting frame and a slider slidably mounted on the supporting frame, the slider being driven by a linear module, the slider being equipped with said magnetic jaws. Specifically, as shown in fig. 11, the linear module of the present embodiment is configured as a cross module 52a, the cross module 52a includes a longitudinal driving module 52a2 and a transverse driving module 52a1, the longitudinal driving module 52a2 includes at least two vertical support rods, a longitudinal slider is slidably mounted on the vertical support rods, the longitudinal slider is driven by a longitudinal driving motor, two ends of the transverse driving module 52a1 are respectively fixedly mounted on the longitudinal slider, the longitudinal driving motor drives the transverse driving module 52a1 to slide on the vertical support rods through the longitudinal slider, so that the transverse driving module 52a1 can correspond to different channel selectors, the transverse driving module 52a1 is slidably mounted on the transverse support rods, the transverse slider is mounted with a magnetic clamping jaw 51, the transverse slider is driven by the transverse driving motor to adjust the position of the magnetic clamping jaw 51, and further make the position of the magnetic clamping jaw 51 correspond to the position of the attraction piece 3, thereby driving the movable carrier 1 to slide on the copper bar through the magnetic attraction of the magnetic clamping jaw 51 and the attraction part 3.

Based on the above structure, the working principle of the power-on selector and PDU system of this embodiment is as follows:

when the channel selector is required to slide on the copper bar, the power supply device arranged on the mounting seat 511 enables the electromagnet 512 to conduct electricity through an electric wire so as to generate magnetic force, the mounting seat 511 attracts the permanent magnet on the attraction piece 3 mutually by virtue of the magnetic force, and then drives the channel selector to move towards the mounting ring 513, so that the contact finger is electrically disconnected with the copper bar, the driving unit 52 drives the magnetic clamping jaw 51 and the channel selector thereon to move to a specified position, the power supply device stops supplying power to the electromagnet 512, the magnetic force of the electromagnet 512 disappears, the electromagnet stops attracting the permanent magnet of the attraction piece 3, and the channel selector moves towards the copper bar, so that the contact finger structure 22 and the copper bar are electrically connected again to charge.

The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. A channel selector, comprising:

the mobile carrier (1), the contact finger assembly (2) is assembled in the mobile carrier (1) in a sliding mode;

the contact finger assembly (2) comprises a substrate (21) assembled in the movable carrier (1) in a sliding mode and a contact finger structure (22) formed on the first surface of the substrate (21), a pressure piece (212) is arranged on the second surface of the substrate (21), and the pressure piece (212) acts on the contact finger structure (22) through the substrate (21) to be electrically connected;

the second surface of the base plate (21) is also provided with the absorbing part (3), and the acting direction of the absorbing part (3) is opposite to that of the pressure part (212) so as to disconnect the electrical connection of the contact finger structure (22).

2. A channel selector according to claim 1, wherein said pressure member (212) is a compression spring or a homopolar permanent magnet, and said engaging member (3) is a permanent magnet.

3. A channel selector as claimed in claim 1, wherein a projection (211) extends from the second face of the base plate (21), said projection (211) having an end face on which the engaging member (3) is secured.

4. A PDU system comprising a channel selector according to any one of claims 1-3.

5. The PDU system of claim 1, further comprising:

the copper bar assembly (4) comprises a plurality of input copper bars (41) and a plurality of output copper bars (42), the input copper bars (41) and the corresponding output copper bars (42) are perpendicular to each other in a non-coplanar mode, and the moving carrier (1) is assembled on the input copper bars (41) or the output copper bars (42) in a sliding mode;

remove module (5), it includes magnetism clamping jaw (51) and drive to remove module (5) drive unit (52) that magnetism clamping jaw (51) removed, magnetism clamping jaw (51) actuation inhale it closes piece (3) in order to break off touch the electricity of indicating structure (22) and connect, drive unit (52) drive remove carrier (1) and remove to the assigned position.

6. The PDU system according to claim 5, wherein the contact finger assembly (2) comprises a long contact finger (222) and a short contact finger (221), the long contact finger (222) is electrically connected with the input copper bar (41) or the output copper bar (42) far away from the mobile carrier (1), and the short contact finger (221) is electrically connected with the input copper bar (41) or the output copper bar (42) close to the mobile carrier (1).

7. A PDU system according to claim 5 or 6, wherein the moving carrier (1) comprises a base body (12), the base body (12) is provided with a through chute (123), the chute (123) is in sliding fit with the input copper bar (41) or the output copper bar (42).

8. The PDU system according to claim 7, wherein an accommodating space is formed at one side of the base (12), the base plate (21) is arranged in the accommodating space, a guide post (121) is arranged on the base (12), the base plate (21) is slidably assembled on the guide post (121), a cover plate (124) is arranged on the accommodating space, a protrusion (1241) is arranged on the cover plate (124), one end of the pressure member (212) is sleeved on the guide post (121), and the other end of the pressure member (212) is sleeved on the protrusion (1241).

9. A PDU system according to claim 8, characterized in that said base body (12) is formed with a through-going guide sleeve (122), the fingers of said finger structure (22) being in sliding engagement with said guide sleeve (122).

10. PDU system according to claim 5, wherein the magnetic jaw (51) comprises a mounting base (511) and an electromagnet (512) fixed to the mounting base (511), the electromagnet (512) being adapted to engage the engaging member (3).

11. PDU system according to claim 5, wherein the drive unit (52) is a robot (52b) and the magnetic gripping jaw (51) is arranged at an executing end of the robot (52 b).

12. PDU system according to claim 5, wherein said drive unit (52) comprises a support frame and a slide slidably mounted on the support frame, said slide being driven by a linear module, said slide being mounted with said magnetic gripping jaws (51).

13. A PDU system according to claim 5, wherein the drive unit (52) comprises:

a longitudinal driving module (52a1), wherein the longitudinal driving module (52a1) comprises at least two vertical supporting rods, and longitudinal sliding blocks are slidably assembled on the vertical supporting rods and driven by a longitudinal driving motor;

the transverse driving module (52a2), the transverse driving module (52a2) comprises a transverse supporting rod, two ends of the transverse supporting rod are fixed on the longitudinal sliding block, a transverse sliding block is further assembled on the transverse supporting rod in a sliding mode and driven by a transverse driving motor, and the magnetic clamping jaw (51) is assembled on the transverse sliding block.