PDU contactor arrangement and installation structure and charging pile

Abstract

The utility model discloses a PDU contactor arrangement and installation structure and a charging pile, the PDU contactor arrangement and installation structure comprises a PDU box body, contactors and an incoming line floating terminal, a plurality of main copper bars and a plurality of branch copper bars are arranged in an inner cavity of the PDU box body, and each contactor is connected with the main copper bars through at least two branch copper bars. And the branch copper bars are detachably connected with the contactors. According to the technical scheme, on one hand, the detachable connection design of the branch copper bars and the contactors is adopted, the contactors can be independently disassembled and replaced under the condition that the main copper bar is not influenced, disassembly of a plurality of copper bars is avoided (the maintenance difficulty is reduced), and the maintenance workload is reduced; and on the other hand, the modular design is adopted, the PDU is assembled outside the cabinet in advance, and then rapid butt joint with the cabinet is realized through the incoming line floating terminal, so that the field assembly time is shortened, and the production efficiency is improved. And a plurality of main copper bars and contactors are integrated in the PDU box body, and the device layout is optimized, so that the PDU structure is more compact, the occupied space is reduced, and the assembly convenience is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to charging technology field especially relates to a PDU contactor arrangement mounting structure and charging pile. BACKGROUND

[0002] With the popularization of new energy vehicles and the diversified development of charging scenes, the power distribution and economic benefits of charging equipment are increasingly important. The power distribution unit (PDU) in the charging pile is a key electrical component, and its main function is to connect the output end of the charging module through multiple DC contactors and distribute power according to the needs of different vehicle ends to optimize charging efficiency and economic benefits.

[0003] The charging pile PDU structure of the related art mainly adopts a contactor wall type design or a PDU that is large in size and heavy. Such traditional design has the following shortcomings: low production efficiency: the existing PDU structure needs to be installed with various electrical devices step by step after the completion of the assembly of the cabinet body. Due to the large size of the cabinet and the large number of components, the assembly is complex, resulting in a long production cycle, high cost, and difficulty in meeting the demand for rapid delivery. Difficult operation and maintenance: the traditional PDU is large in size and heavy in weight, and multiple people are needed to cooperate during installation and transportation, increasing the difficulty of operation and even possibly causing accidents. High maintenance cost: due to the close arrangement of the contactors and copper bars, multiple copper bars need to be disassembled during maintenance, and the process of replacing a single contactor is complicated and complex, increasing the difficulty of maintenance, resulting in a long maintenance time and high labor cost. High safety risk: the number of devices in the PDU or contactor wall is large, and as the running time increases, the internal heat accumulation is serious, combined with the large number of electrical connection points, which may cause an increase in resistance loss, thereby generating additional heat. Long-term operation may cause batch abnormalities, increasing the repair cost and equipment failure risk. SUMMARY

[0004] The main purpose of the utility model is to provide a PDU contactor arrangement mounting structure and a charging pile to at least solve the technical problems of difficult maintenance of the charging pile PDU structure in the related art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] The first aspect of the utility model provides a PDU contactor arrangement mounting structure, which comprises a PDU box body, a contactor, and an incoming line floating terminal.

[0007] The inner cavity of the PDU box body is provided with a plurality of main copper bars and a plurality of branch copper bars.

[0008] Each contactor is connected with the main copper bar through at least two branch copper bars.

[0009] The incoming line floating terminal is used for electrical connection with an external power supply and is electrically connected with the main copper bar;

[0010] The branch copper bar is connected with the contactor through a detachable connection mode.

[0011] On the basis of the first aspect, the branch copper bar is connected with the contactor through a first detachable fixing member.

[0012] On the basis of the first aspect, the first detachable fixing member comprises at least one of a bolt, a screw and a buckle.

[0013] On the basis of the first aspect, the plurality of main copper bars comprises a plurality of first main copper bars and a plurality of second main copper bars; the plurality of first main copper bars and the plurality of second main copper bars are arranged in a grid staggered manner in the inner cavity.

[0014] On the basis of the first aspect, the angle between the first main copper bar and the adjacent second main copper bar is 90 degrees.

[0015] On the basis of the first aspect, the plurality of main copper bars and the plurality of branch copper bars are arranged in an up-down manner in the height direction of the inner cavity.

[0016] On the basis of the first aspect, each branch copper bar is connected with the main copper bar through a second detachable fixing member.

[0017] On the basis of the first aspect, a direct current output copper bar is arranged outside the PDU box body, the direct current output copper bar is electrically connected with the contactor in the inner cavity and is used for transmitting direct current passing through the contactor to an external device.

[0018] On the basis of the first aspect, a heat dissipation channel is arranged on the PDU box body.

[0019] In the second aspect of the utility model, a charging pile is provided, which comprises a charging pile main body and the PDU contactor arrangement installation structure as described in the first aspect.

[0020] The PDU contactor arrangement installation structure and the charging pile have the following advantages: on the one hand, the detachable connection design of the branch copper bar and the contactor can realize the independent disassembly and replacement of the contactor without affecting the main copper bar, thereby avoiding the disassembly of multiple copper bars (reducing the maintenance difficulty) and reducing the maintenance workload. On the other hand, the modular design is adopted, the PDU is assembled outside the cabinet first, and then the incoming line floating terminal is used to realize the quick docking with the cabinet, thereby reducing the on-site assembly time and improving the production efficiency. In addition, the PDU box body is integrated with multiple main copper bars and contactors, the device layout is optimized, the PDU structure is more compact, the occupied space is reduced, and the assembly convenience is improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related art, the following will briefly introduce the drawings needed to be used in the embodiments or related art descriptions. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0022] Figure 1 A three-dimensional schematic view of the PDU contactor arrangement mounting structure provided by the embodiments of the present application is provided.

[0023] Figure 2 An internal structure schematic view of the PDU contactor arrangement mounting structure provided by the embodiments of the present application is provided. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0025] It should be noted that related terms such as "first", "second", etc. can be used to describe various components, but these terms do not limit the components. These terms are only used to distinguish one component from another component. For example, without departing from the scope of the present application, the first component can be referred to as the second component, and the second component can be similarly referred to as the first component. The term "and / or" refers to the combination of any one or more of the related terms and the described terms.

[0026] Please refer to Figure 1 and Figure 2 The embodiments of the present application provide a PDU contactor arrangement mounting structure, which comprises a PDU box 1, a contactor 10 and a line-in floating terminal 3.

[0027] Specifically, the line-in floating terminal 3 is used to be electrically connected with an external power supply and electrically connected with a main copper bar inside the PDU box 1 outside the PDU box 1.

[0028] More specifically, the PDU box 1 has an inner cavity inside, and a plurality of main copper bars (11, 12) and a plurality of branch copper bars (13, 14) are arranged in the inner cavity. Each contactor 10 in the inner cavity is connected to a corresponding main copper bar through at least two branch copper bars, and the branch copper bars are connected to the contactor 10 in a detachable manner, so that the contactor can be individually disassembled and replaced without affecting the main copper bar, avoiding the disassembly of multiple copper bars (reducing maintenance difficulty), and reducing the maintenance workload.

[0029] It should be noted that the main copper bar is the main power supply, which connects the incoming line floating terminal and the branch copper bar to transmit high-power electric energy. In addition, the branch copper bar distributes the electric energy of the main copper bar to each contactor to drive the subsequent equipment. The contactor 10 mainly controls the on-off of power and completes the power management task.

[0030] When the entire PDU contactor arrangement installation structure is working, after the external power supply is connected to the incoming line floating terminal 3, the current is distributed to each branch copper bar through the main copper bar, and then supplied to the contactor 10. When the contactor 10 is turned on, the electric energy is transmitted to the target device; when the contactor is turned off, the current is cut off to ensure safety. The design of the detachable branch copper bar makes it only need to disassemble the branch copper bar to take out and replace the corresponding contactor when replacing the contactor, avoiding the disassembly of other main bars, saving time and labor cost, and greatly improving the maintenance efficiency of the PDU.

[0031] It can be seen that the embodiment optimizes the connection mode of the main copper bar, the branch copper bar and the contactor to improve the flexibility of the electrical connection inside the PDU. At the same time, based on the detachable design of the branch copper bar, the maintenance of the contactor is more convenient.

[0032] In an optional embodiment of the present embodiment, the branch copper bar is connected to the contactor through a first detachable fixing member 31.

[0033] Specifically, the detachable connection mode between the branch copper bar and the contactor is realized through the first detachable fixing member 31 to optimize the power distribution inside the PDU. The first detachable fixing member 31 is used to fix the branch copper bar and the contactor, so as to improve the maintenance convenience while ensuring the reliability of the electrical connection. The first detachable fixing member can be at least one of a bolt, a screw and a buckle to meet the needs of different installation modes.

[0034] In an optional embodiment of the present embodiment, the plurality of main copper bars includes a plurality of first main copper bars 11 and a plurality of second main copper bars 12, the plurality of first main copper bars 11 are arranged in parallel, and the plurality of second main copper bars 12 are arranged in parallel, and the plurality of first main copper bars 11 and the plurality of second main copper bars 12 are arranged in a grid staggered manner in the inner cavity.

[0035] Specifically, the embodiment introduces the first main copper bar 11 and the second main copper bar 12 inside the PDU and arranges them in a grid staggered manner to realize multi-channel current transmission. Compared with the traditional single-layer copper bar, this structure can effectively improve the utilization of space, further improve the electrical conductivity, and optimize the heat dissipation capacity.

[0036] In addition, the angle between the first main copper bar and the second main copper bar adjacent thereto is 90 degrees. That is, the main copper bars in the adjacent relationship are arranged at an angle of 90 degrees, which optimizes the current path and improves the electrical performance and structural stability of the PDU.

[0037] It should be noted that the angle can be optional, and the angle between the main copper bars can be adjusted to adapt to different current distribution requirements and space layouts according to specific application requirements.

[0038] In an optional embodiment of the present embodiment, the plurality of main copper bars and the plurality of branch copper bars are arranged in an up-down distribution in the height direction of the inner cavity.

[0039] Specifically, the plurality of main copper bars and the plurality of branch copper bars are arranged in an up-down distribution in the height direction of the inner cavity, which makes the electrical connection inside the PDU more three-dimensional, improves the balance of current distribution, and optimizes heat dissipation and space utilization. In combination with the above embodiment, the copper bar structure of the present embodiment adopts a grid staggered and vertically layered arrangement, which enhances the electrical conductivity while improving the heat dissipation performance and optimizing the internal space layout of the PDU.

[0040] In an optional embodiment of the present embodiment, each branch copper bar (for example, the first branch copper bar 13 and the second branch copper bar 14) is connected to the main copper bar (11, 12) through a second detachable fixing member 32.

[0041] Specifically, since the second detachable fixing member 32 is used to realize the detachable connection between the branch copper bars (13, 14) and the main copper bars (11, 12), the entire PDU power distribution structure is more flexible and efficient, and is convenient for maintenance and replacement. In order to adapt to different installation requirements, the second detachable fixing member can be at least one of a bolt, a screw, and a buckle to provide stable and reliable connection and support quick disassembly and assembly.

[0042] In an optional embodiment of the present embodiment, a direct current output copper bar 4 is arranged outside the PDU box, the direct current output copper bar 4 is electrically connected to the contactor in the inner cavity, and is used to transmit direct current passing through the contactor to an external device to meet the direct current power supply requirement of the external device.

[0043] In an optional embodiment of the present embodiment, a heat dissipation channel can also be arranged on the PDU box, which can promote air circulation and improve heat dissipation efficiency, thereby improving the stability and reliability of the PDU in a high-load environment.

[0044] The embodiment also provides a charging pile, comprising a charging pile body and the PDU contactor arrangement mounting structure as described above.

[0045] The PDU contactor arrangement mounting structure and the charging pile have the following advantages: on the one hand, the detachable connection design of the branch copper bar and the contactor can be used to individually disassemble and replace the contactor without affecting the main copper bar, thereby avoiding disassembling multiple copper bars (reducing the maintenance difficulty) and reducing the maintenance workload; on the other hand, the modular design is used to assemble the PDU outside the cabinet first, and then realize the quick docking with the cabinet through the incoming line floating terminal, thereby reducing the on-site assembly time and improving the production efficiency; in addition, the PDU box body is integrated with multiple main copper bars and contactors, the device layout is optimized, the PDU structure is more compact, the occupied space is reduced, and the assembly convenience is improved.

[0046] Meanwhile, the utility model still has the following beneficial effects: through the PDU compact staggered design, the PDU internal contactor and copper bar are arranged in a staggered manner, the incoming line side adopts a special floating terminal, the internal contactor is independently coded, the copper bar optimization design is used to ensure that only two copper bar connecting bolts need to be disassembled when replacing the contactor, and one person can quickly replace the faulty contactor through single operation, thereby improving the contactor replacement and maintenance performance.

[0047] The specific embodiments of the utility model are described in detail above, but they are only examples, and the utility model is not limited to the specific embodiments described above. Any equivalent modification or replacement of the utility model made by those skilled in the art is also within the scope of the utility model, and therefore, equivalent transformation, modification, improvement, etc. made without departing from the spirit and principle range of the utility model should be covered in the scope of the utility model.

Claims

1. A PDU contactor arrangement mounting structure characterized by, The PDU contactor arrangement mounting structure comprises a PDU box, contactors and an incoming line floating terminal; The PDU box is provided with a plurality of main copper bars and a plurality of branch copper bars in the inner cavity thereof; Each of the contactors is connected with the main copper bars through at least two branch copper bars; The incoming line floating terminal is used for electrical connection with an external power supply and electrical connection with the main copper bars; The branch copper bars are connected with the contactors through a detachable connection mode.

2. The PDU-contactor arrangement mounting structure according to claim 1, characterized in that, The branch copper bars are connected with the contactors through first detachable fixing members.

3. The PDU-contactor arrangement mounting structure according to claim 2, characterized in that, The first detachable fixing members comprise at least one of a bolt, a screw and a buckle.

4. The PDU contactor arrangement mounting structure of claim 2, wherein, The plurality of main copper bars comprises a plurality of first main copper bars and a plurality of second main copper bars; The plurality of first main copper bars and the plurality of second main copper bars are distributed in a grid interlaced manner in the inner cavity.

5. The PDU contactor arrangement mounting structure of claim 4, wherein, The angle between the first main copper bar and the second main copper bar adjacent thereto is 90 degrees.

6. The PDU contactor arrangement mounting structure of claim 2, wherein, The plurality of main copper bars and the plurality of branch copper bars are distributed in an up-down manner in the height direction of the inner cavity.

7. The PDU-contactor arrangement mounting structure according to claim 2, characterized in that, Each of the branch copper bars is connected with the main copper bars through second detachable fixing members.

8. The PDU-contactor arrangement mounting structure according to claim 1, characterized in that, The PDU box is provided with a direct current output copper bar outside the PDU box, the direct current output copper bar is electrically connected with the contactors in the inner cavity and is used for transmitting direct current passing through the contactors to an external device.

9. The PDU-contactor arrangement mounting structure according to claim 1, characterized in that, The PDU box is provided with a heat dissipation channel.

10. A charging post, characterized in that, The charging pile body and the PDU contactor arrangement mounting structure as claimed in any one of claims 1 to 9 are comprised.

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