A channel selector and PDU system

Abstract

The present invention relates to the field of charging, and specifically to a channel selector and a PDU system. A channel selector, a mobile carrier, a contact finger assembly slidably assembled in the mobile carrier; the contact finger assembly includes a substrate slidably assembled inside the mobile carrier and a contact finger structure formed on the first surface of the substrate, the second surface of the substrate is provided with a pressure piece, the pressure piece acts on the contact finger structure through the substrate to make an electrical connection; a suction piece, the second surface of the substrate is also formed with the suction piece, the action direction of the suction piece is opposite to the action direction of the pressure piece to disconnect the electrical connection of the contact finger structure. The technical problem that each channel selector is configured with a corresponding drive unit in the technology, resulting in a complex structure of the PDU system, is solved.

Description

Technical Field

[0001] The present invention relates to the field of charging, and in particular to a channel selector and a PDU system. Background Art

[0002] With the progress of society and the enhancement of environmental awareness, electric vehicles are attracting more and more attention from people. The charging problem of electric vehicles is related to the popularization and promotion of electric vehicles. In order to charge electric vehicles of different capacities, many companies have begun to study and manufacture charging piles that can distribute power. The core unit of the flexible power distribution system of the existing charging pile is PDU. PDU serves as the intermediate hub between the power supply and the charging terminal, and plays the role of connection and distribution. The existing channel selector PDU system has the following problems:

[0003] 1. Each channel selector is configured with a corresponding drive unit, which makes the PDU system structure complicated, thereby increasing costs.

[0004] 2. When the PDU selector performs power switching, the electrodes of the selector are in direct contact with the copper busbar of the power supply or the copper busbar of the charging terminal. The direct contact will cause greater friction, resulting in damage to the surface plating of the copper busbar, which in turn causes the current carrying capacity of the copper busbar to decrease, resulting in power loss.

[0005] 3. A single relay / contactor is used to form an M x N array, or multiple fixed multi-contact relays / contactors are used. The disadvantage of directly using a relay array is that the relays are used in large quantities, the cost is high, and M x N complex control circuits are required. This solution is quite complex in terms of structure, electricity, hardware, and software, is not convenient for channel expansion, and occupies a large space.

[0006] 4. A fixing device needs to be set between the channel selector and the power copper busbar to prevent the channel selector from detaching from the power copper busbar and falling to the ground and being damaged. Summary of the invention

[0007] In order to solve the technical problem in the prior art that each channel selector is configured with a corresponding drive unit, resulting in a complex PDU system structure, the present invention provides a channel selector and a PDU system to solve the above technical problem. The technical solution of the present invention is as follows:

[0008] A channel selector, a mobile carrier, a contact finger assembly slidably assembled inside the mobile carrier; the contact finger assembly includes a substrate slidably assembled inside the mobile carrier and a contact finger structure formed on the first surface of the substrate, the second surface of the substrate is provided with a pressure piece, the pressure piece acts on the contact finger structure through the substrate to achieve electrical connection; an attraction piece, the second surface of the substrate is also formed with the attraction piece, the action direction of the attraction piece is opposite to the action direction of the pressure piece to disconnect the electrical connection of the contact finger structure.

[0009] According to an embodiment of the present invention, the pressure member is a compression spring or a permanent magnet with the same polarity, and the attraction member is an electromagnet or a permanent magnet.

[0010] According to an embodiment of the present invention, a boss extends from the second surface of the substrate, and the suction member is fixed on the end surface of the boss.

[0011] A PDU system includes the above-mentioned channel selector.

[0012] According to one embodiment of the present invention, it also includes: a copper busbar assembly, which includes a plurality of input copper busbars and a plurality of output copper busbars, wherein the input copper busbars and the corresponding output copper busbars are formed to be eccentrically vertical, and the movable carrier is slidably assembled on the input copper busbars or the output copper busbars; and a movable module, wherein the movable module includes a magnetic clamp and a driving unit for driving the magnetic clamp to move, wherein the magnetic clamp attracts the attraction element to disconnect the electrical connection, and the driving unit drives the movable carrier to move to a specified position.

[0013] According to one embodiment of the present invention, the contact finger assembly includes long contact fingers and short contact fingers, the long contact fingers establish an electrical connection with an input copper busbar or an output copper busbar far away from the mobile carrier, and the short contact fingers establish an electrical connection with an input copper busbar or an output copper busbar close to the mobile carrier.

[0014] According to one embodiment of the present invention, the movable carrier comprises a base body, the base body is provided with a penetrating slide groove, and the slide groove is slidably matched with the input copper busbar or the output copper busbar.

[0015] According to one embodiment of the present invention, a accommodating space is formed on one side of the base, the substrate is built into the accommodating space, a guide column is provided on the base, the substrate is slidably assembled on the guide column, a cover plate is provided on the accommodating space, a protrusion is provided on the cover plate, one end of the pressure piece is sleeved on the guide column, and the other end of the pressure piece is sleeved on the protrusion.

[0016] According to an embodiment of the present invention, the base body is formed with a penetrating guide sleeve, and the contact fingers of the contact finger structure are slidably matched with the guide sleeve.

[0017] According to an embodiment of the present invention, the magnetic clamp comprises a mounting seat and an electromagnet fixed on the mounting seat, and the electromagnet is used to attract the attraction member.

[0018] According to an embodiment of the present invention, the driving unit is a robot, and the magnetic clamp is configured at the end of the robot.

[0019] According to an embodiment of the present invention, the driving unit includes a support frame and a slider slidably mounted on the support frame, and the magnetic clamp is mounted on the slider.

[0020] According to one embodiment of the present invention, the driving unit includes: a longitudinal driving module, the longitudinal driving module includes at least two vertical struts, the vertical struts are slidably equipped with a longitudinal slider, and the longitudinal slider is driven by a longitudinal driving motor; a transverse driving module, the transverse driving module includes a transverse strut, the two ends of the transverse strut are fixed to the longitudinal slider, the transverse strut is also slidably equipped with a transverse slider, the transverse slider is driven by the transverse driving motor, and the magnetic clamp is installed on the transverse slider.

[0021] Based on the above structure, the technical effects that can be achieved by the present invention are:

[0022] 1. The channel selector of the present invention comprises a movable carrier, a finger contact assembly and a suction member, wherein the finger contact assembly is slidably assembled in the movable carrier, specifically, the finger contact assembly comprises a substrate slidably assembled in the movable carrier and a finger contact structure formed on a first surface of the substrate, at least a portion of the finger contact structure protrudes from the movable carrier, a pressure member is arranged on the second surface of the substrate, and the pressure member acts on the finger contact structure through the substrate so that the finger contact structure slides in the movable carrier and makes an electrical connection; in addition, a suction member is also formed on the second surface of the substrate, and the action direction of the suction member is opposite to the action direction of the pressure member so that the finger contact structure disconnects the electrical connection, so that when the movable carrier slides with the finger contact assembly thereon under the action of an external force, the finger contact structure will not contact and rub against the copper busbar, resulting in damage to the surface plating of the copper busbar, and then resulting in a decrease in the current carrying capacity of the copper busbar and power loss, and further, the channel selector can share a driving device through the suction member, and the driving device drives the movable carrier to slide to a specified position with the aid of the suction member.

[0023] 2. A boss extends from the second surface of the substrate of the present invention, and a suction member is fixed on the end surface of the boss. The height of the boss can be set according to actual needs. The height of the boss is higher than the highest surface of the movable carrier. When the boss passes through the avoidance hole on the movable carrier and the driving device and the suction member are connected, the boss can prevent one end of the suction member from extending into the driving device.

[0024] 3. A PDU system of the present invention includes a channel selector, a copper bar assembly and a mobile module. The copper bar assembly includes 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 unequally vertical. The mobile carrier is slidably assembled on the input copper bar or the output copper bar. The mobile module includes a magnetic clamp and a driving unit for driving the magnetic clamp to move. The magnetic clamp attracts the attraction piece to disconnect the electrical connection. The driving unit drives the mobile carrier to move to a specified position. Compared with a relay, the present application controls the connection or disconnection of the magnetic clamp and the attraction piece by connecting and disconnecting the magnetic clamp with the power supply device to achieve the disconnection and connection of the electrical connection. No fixed wiring is required, and the flexibility is good and the applicability is strong. In addition, the magnetic clamp uses the attraction piece to disconnect the electrical connection between the contact finger structure and the copper bar. This can avoid direct contact between the contact finger structure and the copper bar when the mobile carrier moves. Direct contact will cause greater friction, resulting in damage to the surface coating of the copper bar, which in turn causes the copper bar to have a smaller current carrying capacity and generate power loss.

[0025] 4. The mobile carrier of the present invention includes a base body, the base body is provided with a through slide groove, the input copper busbar or the output copper busbar is inserted into the slide groove to form a sliding fit, so that the present application does not need to set a fixing device between the channel selector and the copper busbar to prevent the channel selector from being separated from the copper busbar. In addition, a accommodating space is formed on one side of the base body, the base plate is built into the accommodating space, a guide column is provided on the base body, the base plate is slidably assembled on the guide column, a cover plate is provided on the accommodating space, a protrusion is provided on the cover plate, one end of the pressure piece is sleeved on the guide column, and the other end of the pressure piece is sleeved on the protrusion, so that when charging, the pressure piece can press the base plate so that the contact finger structure on it keeps in contact with the copper busbar, thereby avoiding the interruption of charging caused by the shaking of the PDU system.

[0026] 5. The driving unit of the present invention can be set as a robot, the robot is set on the channel selector, and the magnetic clamp is configured at the end of the robot. The robot can drive the magnetic clamp to move through its mechanical arm, and the movement of the magnetic clamp can drive the mobile carrier to slide to a specified position on the input copper bar or the output copper bar. In addition, the driving unit can also be set as a support frame and a slider slidably assembled on the support frame, and the slider is equipped with a magnetic clamp. Specifically, the driving unit includes: a longitudinal driving module and a transverse driving module, the longitudinal driving module includes at least two vertical struts, and the longitudinal slider is slidably assembled on the vertical struts. The longitudinal slider is driven by a longitudinal driving motor to drive the transverse driving module to move so that the position of the transverse driving module and the channel selector corresponds. The transverse driving module includes a transverse strut, and the two ends of the transverse strut are fixed to the longitudinal slider. The transverse strut is also slidably assembled with a transverse slider, and the transverse slider is equipped with a magnetic clamp. The transverse slider is driven by a transverse driving motor to adjust the position of the magnetic clamp, so that the position of the magnetic clamp corresponds to that of the suction piece, thereby driving the mobile carrier to slide on the copper bar through the magnetic attraction of the magnetic clamp and the suction piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural diagram of a PDU system in the prior art;

[0028] Figure 2 is a schematic diagram of the structure of the channel selector of this example 1;

[0029] Figure 3 This is a schematic diagram of the structure of the mobile carrier of Example 1;

[0030] Figure 4 is a schematic structural diagram of the touch finger assembly of this example 1;

[0031] Figure 5 is a schematic structural diagram of the finger structure of the first embodiment;

[0032] Figure 6 This is a schematic diagram of the structure of the pressure piece of Example 1;

[0033] Figure 7 This is a schematic diagram of the structure of the short contact finger of the second example;

[0034] Figure 8 This is a schematic diagram of the structure of the long contact finger of the second example;

[0035] Fig. 9 This is a schematic diagram of the structure of the PDU system of Example 2;

[0036] Fig.10 This is a schematic diagram of the structure of the robot in Example 2;

[0037] Fig.11 This is a schematic diagram of the structure of the cross module of Example 2;

[0038] Fig.12 This is a schematic diagram of the structure of the magnetic clamp of Example 2;

[0039] Fig.13 It is a structural schematic diagram of the magnetic clamp and the channel selector in the second embodiment in the engaged state;

[0040] Fig.14 For this example 2 Fig.13 A schematic diagram of the cross-section structure of ;

[0041] In the figure: 1'-PDU robot module; 2'-guide rail; 3'-driving assembly; 31'-driving device; 32'-rack; 1-mobile carrier; 11-frame; 12-base; 121-guide column; 122-guide kit; 1221-first guide sleeve; 1222-second guide sleeve; 123-slide; 124-cover plate; 1241-protrusion; 2-finger contact assembly; 21-base plate; 211-boss; 2111-groove; 212-pressure piece; 21 3-guide hole; 22-contact finger structure; 221-short contact finger; 222-long contact finger; 223-conductive block; 2231-mounting hole; 3-attractive piece; 4-copper busbar assembly; 41-input copper busbar; 42-output copper busbar; 5-moving module; 51-magnetic clamp; 511-mounting seat; 512-electromagnet; 513 mounting ring; 52-drive unit; 52a-cross module; 52a1-lateral drive module; 52a2-longitudinal drive module; 52b-robot. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0044] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0045] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0046] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0047] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0048] Embodiment 1:

[0049] like Figure 1 As shown, the PDU system in the prior art includes a PDU robot module 1', a drive component 3' and a guide rail 2'. The PDU robot module 1' slides along the guide rail 2 under the driving action of the drive component 3. Specifically, the drive component 3' includes a drive device 31' and a rack 32'. The drive end of the drive device 31' is connected to a gear. The rack 32' is arranged parallel to the guide rail 2'. The rack 32' is located between the two guide rails 2. The drive device 31' drives the gear to rotate. Since the gear is meshed with the rack 32', the rotation of the gear can drive the PDU robot module 1' to slide along the guide rail 2'. In this way, each PDU robot module 1' needs to be provided with a corresponding drive component 3', which complicates the structure of the PDU system and increases the cost.

[0050] like Figure 2 and 3 As shown, the channel selector of this embodiment includes a mobile carrier 1, a contact finger assembly 2 and a suction member 3. The contact finger assembly 2 is slidably assembled in the mobile carrier 1. Specifically, the contact finger assembly 2 includes a substrate 21 slidably assembled inside the mobile carrier 1 and a contact finger structure 22 formed on the first surface of the substrate 21. The second surface of the substrate 21 is provided with a pressure member 212. The pressure member 212 acts on the contact finger structure 22 through the substrate 21 so that the contact finger structure 22 slides in the mobile carrier 1 and makes an electrical connection. In addition, the suction member 3 is also formed on the second surface of the substrate 21. The action direction of the suction member 3 is opposite to the action direction of the pressure member 212 so that the contact finger structure 22 disconnects the electrical connection.

[0051] From the above content, it can be known that the channel selector of this example can switch the charging connection position with the help of the suction component 3 and the external driving device. The driving device can be configured with an adapter that engages with the suction component 3, such as an electromagnet. In this way, the driving device is first connected to the suction component 3, and then the suction component 3 drives the mobile carrier 1 to slide to the specified position. The driving device disconnects the suction component 3 and then drives another channel selector. In this way, multiple channel selectors share one driving device. In addition, when the mobile carrier 1 slides with the contact finger assembly 2 thereon driven by the suction component 3, the contact finger structure 22 will not contact and rub against the copper busbar, thereby avoiding damage to the surface coating of the copper busbar, and then avoiding a reduction in the current carrying capacity of the copper busbar and power loss.

[0052] According to one embodiment of the present invention, Figure 3 As shown, the mobile carrier 1 includes a frame 11 and a base 12. The frame 11 is arranged on one side of the base 12. Preferably, the base 12 and the frame 11 are integrally formed. The frame 11 and the base 12 form a frame member with an accommodating space inside. The accommodating space accommodates the contact assembly 2.

[0053] The finger assembly 2 of this embodiment is composed of a sliding substrate 21 and a finger structure 22 formed on a first surface of the substrate 21, wherein Figure 3 and 6 As shown, in this embodiment, the substrate 21 is slidably assembled in the accommodation space of the mobile carrier 1. Specifically, the substrate 21 is movably arranged in the accommodation space. A guide column 121 is provided on the base 12. The guide column 121 extends from the base 12. A guide hole 213 corresponding to the guide column 121 is provided on the substrate 21. The substrate 21 is penetrated on the guide column 121 by means of the guide hole 213 to form a sliding fit. In this way, the substrate 21 can only slide along the guide column 121, and the guide column 121 plays a guiding role in the movement of the substrate 21. Preferably, four guide columns 121 are provided, and the positions of the four guide columns 121 correspond to the corners of the substrate 21, so as to ensure the balance of the movement of the substrate 21.

[0054] Through the above structure, the substrate 21 can drive the contact finger structure 22 to move, so as to control the on or off of the charging circuit.

[0055] The substrate 21 of this embodiment makes the contact finger structure (22) electrically connected under the action of the pressure piece 212. The pressure piece 212 is assembled as follows: a cover plate 124 is provided on the accommodating space of this embodiment, and the cover plate 124 is fixedly assembled on the frame 11. A protrusion 1241 corresponding to the guide column 121 is formed on the side of the substrate 21 close to the cover plate 124. The protrusion 1241 and the guide column 121 are in the same straight line in the vertical direction. One end of the pressure piece 212 of this embodiment is sleeved on the guide column 121 to abut against the substrate 21, and the other end of the pressure piece 212 is sleeved on the protrusion 1241 to abut against the cover plate 124. In this way, the pressure piece 212 can press the substrate 21 so that the contact finger structure 22 thereon extends out of the mobile carrier 1 and contacts the copper busbar, thereby conducting the charging circuit. Preferably, the pressure piece 212 is a compression spring, which can press the contact finger structure 22 tightly against the copper busbar to avoid interruption of charging due to shaking of the PDU system. Of course, the pressure piece 212 can also be configured as a permanent magnet with the same polarity, which is fixedly mounted on the guide column 121 and the protrusion 1241 respectively, and abuts against the base plate 21 and the cover plate 124 through magnetic forces of like polarities that repel each other.

[0056] The substrate 21 of this embodiment uses the suction member 3 to disconnect the electrical connection of the contact finger structure (22). Figure 2 and 4As shown, the suction member 3 of this example is installed on the substrate 21 by means of a boss 211. Specifically, a boss 211 is provided on the second surface of the substrate 21, and the suction member 3 is fixed on the end surface of the boss 211. Furthermore, the boss 211 is provided as a columnar body, and the mounting end of the boss 211 is concave to form a groove 2111. The suction member 3 is built into the groove 2111, and the height of the boss 211 can be set according to actual needs. In this way, the electromagnet of the driving device can be attracted to the suction member 3, and the suction member 3 overcomes the pre-tightening force of the pressure member under the action of the driving device to drive the contact finger structure on the substrate 21 away from the copper busbar, thereby disconnecting the electrical connection.

[0057] Preferably, the attraction member 3 is a permanent magnet.

[0058] Preferably, the boss 211 directly extends from the second surface of the substrate 21 , and the two are integrally formed, which can reduce the number of connecting parts provided between the substrate 21 and the boss 211 .

[0059] Embodiment 2:

[0060] like Fig. 9 As shown, this embodiment also provides a PDU system, and the PDU system includes the above-mentioned channel selector.

[0061] The PDU system also includes a copper busbar assembly 4, which includes a plurality of input copper busbars 41 and a plurality of output copper busbars 42. The input copper busbars 41 and the corresponding output copper busbars 42 are formed to be skewed and perpendicular. The plurality of input copper busbars 41 are arranged in parallel, and the plurality of output copper busbars 42 are arranged in parallel. The input copper busbars 41 and the output copper busbars 42 are arranged in a cross-staggered array on skewed surfaces. In this way, there is no interference between the input copper busbars 41 and the output copper busbars 42.

[0062] like Figure 3 and 9 As shown, the base 12 of the mobile carrier 1 of this embodiment is provided with a penetrating slide groove 123, and the input copper bus 41 is inserted into the slide groove 123 to form a sliding fit. Preferably, the slide groove 123 is arranged to be a square structure matching the input copper bus 41. Due to the anti-rotation characteristics of the square structure itself, under the action of external force, when the base 12 and the device thereon slide on the input copper bus 41, the base 12 will not shake or detach from the input copper bus 41. Compared with the prior art in which a fastening device is required between the channel selector and the power copper bus to prevent the channel selector from detaching from the copper bus and falling to the ground and being damaged, the PDU system of this embodiment does not require a fastening device, thereby simplifying the structure and saving costs.

[0063] In order to adapt to the copper busbar assembly 4, the contact finger structure 22 of this embodiment includes a long contact finger 222 and a short contact finger 221. The long contact finger (222) establishes an electrical connection with the input copper busbar (41) or the output copper busbar (42) far away from the mobile carrier (1), and the short contact finger (221) establishes an electrical connection with the input copper busbar (41) or the output copper busbar (42) close to the mobile carrier (1). The contact finger structure 22 of this embodiment is assembled as follows: Figure 7 and 8 As shown, the base 12 of this embodiment is formed with a penetrating guide sleeve 122, and the guide sleeve includes a first guide sleeve 1221 and a second guide sleeve 1222. One end of the first guide sleeve 1221 penetrates the base 12, and the long contact finger 222 is inserted into the first guide sleeve 1221. One end of the second guide sleeve 1222 penetrates the slide groove 123, and the short contact finger 221 is inserted into the second guide sleeve 1222.

[0064] Furthermore, in this embodiment, the long contact fingers 222 and the short contact fingers 221 are connected by means of the conductive blocks 223 , so that the distance between the long contact fingers 222 and the short contact fingers 221 can be set according to actual needs.

[0065] Preferably, a mounting hole 2231 is provided on the conductive block 223 , and a temperature sensor may be provided on the mounting hole 2231 to monitor the temperature in the channel selector.

[0066] like Fig.10 , 12, 13 and 14, in order to drive the mobile carrier 1 to slide on the copper busbar, the PDU system of this embodiment also includes a mobile module 5, the mobile module 5 includes a magnetic clamp 51 and a driving unit 52 for driving the magnetic clamp 51 to move, the driving unit 52 drives the mobile carrier 1 to slide on the input copper busbar 41 or the output copper busbar 42 with the help of the magnetic clamp 51, specifically, the driving unit 52 is arranged on one side of the copper busbar assembly 4, the magnetic clamp 51 includes a mounting seat 511 and an electromagnet 512, one end of the mounting seat 511 is connected to the driving unit 52, an electric wire connected to the electromagnet 512 is arranged in the mounting seat 511, the electromagnet 512 is built in the mounting seat 511, and the other end of the mounting seat 511 forms a mounting ring 513 that penetrates the electromagnet 512, and 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 seat 511 from the mounting ring 513. When the mobile carrier 1 needs to slide on the copper busbar, the mounting seat 511 attracts the permanent magnet on the suction member 3 by magnetic force, driving the boss 211, the substrate 21 and the contact finger to move toward the mounting ring 513. Because the height of the boss 211 in this embodiment is higher than the highest surface of the mobile carrier 1, after the boss 211 passes through the avoidance hole set on the mobile carrier 1, the end of the boss 211 protruding from the mobile carrier 1 can be extended into the mounting ring 513 to disconnect the electrical connection between the contact finger and the copper busbar. In addition, because one end of the compression spring abuts on the cover plate 124 of the mobile carrier 1 and the other end of the compression spring abuts on the substrate 21, the movement of the substrate 21 will drive the mobile carrier 1 to move together, and the driving unit 52 drives the magnetic clamp 51 and the mobile carrier 1 thereon to move to the specified position. The electromagnet 512 loses power, the electromagnet 512 and the attracting element 3 are disconnected, and the substrate 21 and the contact finger structure 22 thereon move toward the copper busbar under the action of the compression spring to realize the electrical connection between the contact finger structure 22 and the copper busbar again, thereby forming a charging circuit.

[0067] According to an embodiment of the drive unit 52 of the present invention, Fig.10 As shown, the driving unit 52 of the present embodiment can be configured as a robot 52b, which is disposed on one side of the copper busbar assembly 4. The magnetic clamp 51 is configured at the execution end of the robot 52b. The robot 52b can drive the magnetic clamp 51 to move through its mechanical arm. The movement of the magnetic clamp 51 can drive the mobile carrier 1 to slide to a designated position on the input copper busbar 41 or the output copper busbar 42. For different charging positions, the mechanical arm can cover the entire copper busbar assembly 4 area to drive different channel selectors to move on the copper busbar assembly 4.

[0068] According to another embodiment of the driving unit 52 of the present invention, the driving unit 52 comprises a support frame and a slider slidably mounted on the support frame, the slider is driven by a linear module, and the magnetic clamp is mounted on the slider. Fig.11As shown, the linear module of this embodiment is configured as a cross module 52a, and the cross module 52a includes a longitudinal drive module 52a2 and a transverse drive module 52a1. The longitudinal drive module 52a2 includes at least two vertical struts, and a longitudinal slider is slidably mounted on the vertical struts. The longitudinal slider is driven by a longitudinal drive motor. The two ends of the transverse drive module 52a1 are respectively fixedly mounted on the longitudinal slider. The longitudinal drive motor drives the transverse drive module 52a1 to slide on the vertical struts with the aid of the longitudinal slider, so that the transverse drive module 52a1 can correspond to different channel selectors. The transverse drive module 52a1 is a transverse strut and a transverse drive motor. A transverse slider is also slidably mounted on the transverse strut, and a magnetic clamp 51 is mounted on the transverse slider. The transverse slider is driven by the transverse drive motor to adjust the position of the magnetic clamp 51, so that the magnetic clamp 51 corresponds to the position of the suction member 3, thereby driving the mobile carrier 1 to slide on the copper bus through the magnetic attraction force between the magnetic clamp 51 and the suction member 3.

[0069] Based on the above structure, the working principle of the power selector and PDU system of this embodiment is as follows:

[0070] When the channel selector needs to slide on the copper busbar, the power supply device arranged on the mounting seat 511 makes the electromagnet 512 conductive through the electric wire to generate magnetic force. The mounting seat 511 attracts the permanent magnet on the suction member 3 with the help of the magnetic force, thereby driving the channel selector to move toward the mounting ring 513 to disconnect the electrical connection between the contact finger and the copper busbar. The driving unit 52 drives the magnetic clamp 51 and the channel selector thereon to move to the specified position, and the power supply device stops supplying power to the electromagnet 512. The magnetic force of the electromagnet 512 disappears, the electromagnet stops being attracted to the permanent magnet of the suction member 3, and the channel selector moves toward the copper busbar to realize the electrical connection between the contact finger structure 22 and the copper busbar again for charging.

[0071] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A PDU system, comprising a channel selector, characterized in that: The channel selector comprises: A movable carrier (1), wherein a contact finger assembly (2) is slidably mounted in the movable carrier (1); A contact finger assembly (2) comprises a substrate (21) slidably mounted inside a mobile carrier (1) and a contact finger structure (22) formed on a first surface of the substrate (21); a pressure piece (212) is disposed on a second surface of the substrate (21); the pressure piece (212) acts on the contact finger structure (22) through the substrate (21) to achieve electrical connection; An attraction member (3), the second surface of the substrate (21) is also formed with the attraction member (3), the action direction of the attraction member (3) being opposite to the action direction of the pressure member (212) so as to disconnect the electrical connection of the contact finger structure (22); A copper bar assembly (4), the copper bar assembly (4) comprising 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) being formed to be skewed and vertical, and the movable carrier (1) being slidably assembled on the input copper bars (41) or the output copper bars (42); The contact finger structure (22) comprises a long contact finger (222) and a short contact finger (221); the long contact finger (222) establishes an electrical connection with an input copper bus (41) or an output copper bus (42) far away from the mobile carrier (1); and the short contact finger (221) establishes an electrical connection with an input copper bus (41) or an output copper bus (42) close to the mobile carrier (1).

2. A PDU system according to claim 1, characterized in that: The pressure piece (212) is a compression spring or a permanent magnet with the same polarity, and the attraction piece (3) is a permanent magnet.

3. A PDU system according to claim 1, characterized in that: A boss (211) extends from the second surface of the base plate (21), and the suction member (3) is fixed on the end surface of the boss (211).

4. A PDU system according to claim 1, characterized in that: Also includes: A mobile module (5), the mobile module (5) comprising a magnetic clamp (51) and a driving unit (52) for driving the magnetic clamp (51) to move, the magnetic clamp (51) attracting the attracting member (3) to disconnect the electrical connection of the contact finger structure (22), and the driving unit (52) driving the mobile carrier (1) to move to a specified position.

5. A PDU system according to claim 1, characterized in that: The movable carrier (1) comprises a base (12), the base (12) being provided with a penetrating slide groove (123), the slide groove (123) being slidably matched with the input copper busbar (41) or the output copper busbar (42).

6. A PDU system according to claim 5, characterized in that: A receiving space is formed on one side of the base (12), the substrate (21) is built into the receiving space, a guide column (121) is provided on the base (12), the substrate (21) is slidably mounted on the guide column (121), a cover plate (124) is provided on the receiving space, a protrusion (1241) is provided on the cover plate (124), one end of the pressure piece (212) is sleeved on the guide column (121), and the other end of the pressure piece (212) is sleeved on the protrusion (1241).

7. A PDU system according to claim 6, characterized in that: The base body (12) is formed with a penetrating guide sleeve (122), and the contact fingers of the contact finger structure (22) are slidably matched with the guide sleeve (122).

8. A PDU system according to claim 4, characterized in that: The magnetic clamp (51) comprises a mounting seat (511) and an electromagnet (512) fixed on the mounting seat (511), and the electromagnet (512) is used to attract the attraction member (3).

9. A PDU system according to claim 4, characterized in that: The driving unit (52) is a robot (52b), and the magnetic clamp (51) is arranged at the execution end of the robot (52b).

10. A PDU system according to claim 4, characterized in that: The driving unit (52) comprises a support frame and a slider slidably mounted on the support frame, the slider being driven by a linear module, and the magnetic clamp (51) being mounted on the slider.

11. A PDU system according to claim 4, characterized in that: The driving unit (52) comprises: A longitudinal driving module (52a1), the longitudinal driving module (52a1) comprising at least two vertical support rods, a longitudinal slider being slidably mounted on the vertical support rods, and the longitudinal slider being driven by a longitudinal driving motor; A transverse driving module (52a2), the transverse driving module (52a2) comprising a transverse support rod, both ends of the transverse support rod being fixed to the longitudinal slider, the transverse support rod being also slidably equipped with a transverse slider, the transverse slider being driven by a transverse driving motor, and the magnetic clamp (51) being equipped on the transverse slider.

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