Charging pile power distribution unit structure

Abstract

The utility model discloses a power distribution unit structure of a charging pile, and belongs to the technical field of structural design. A plurality of contactors are fixed on the contactor mounting piece, a plurality of conductors are connected to the contactors, a first cable supporting and fixing piece and a second cable supporting and fixing piece are arranged above the contactor mounting piece, and a sealing plate supporting and fixing piece is arranged below the contactor mounting piece. And a bottom cross beam is arranged at the bottom of the contactor mounting piece. According to the utility model, the flexibility of overall power allocation can be improved, the charging efficiency can be improved, the charging experience of customers can be improved, the charging time can be reduced, the utilization rate of the charging pile can be improved, and the operation cost of the charging pile can be effectively reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of structural design, and in particular relates to a power distribution unit structure of a charging pile. Background Art

[0002] The demand for car charging stations has exploded with the rapid development of new energy vehicles, placing increasingly stringent requirements on charging stations and making power distribution increasingly important. Traditional charging station power distribution units often fail to adequately consider both electrical topology and layout. This can lead to complex wiring connections and long wiring distances between components, increasing line resistance and inductance, resulting in increased energy loss during power transmission and reduced charging efficiency. Lack of proper layout planning prevents full utilization of the limited space within the system. Some components may occupy unnecessary space, limiting the ability to accommodate more functions or increase power flexibility within a limited space. For example, large gaps may be left unused, or the placement of certain components may be inconvenient for subsequent maintenance and upgrades, hindering the compactness of the power distribution unit. In addition to increasing line losses, an inappropriate layout can also compromise heat dissipation. If components are too densely packed or ventilation is poorly designed, heat cannot be dissipated promptly, leading to elevated operating temperatures. High temperatures can affect the performance of electronic components, increase resistance, further reducing charging efficiency, and potentially shorten component lifespans and increasing maintenance costs.

[0003] Therefore, there is an urgent need for a charging pile power distribution unit structure. Utility Model Content

[0004] The purpose of the utility model is to provide a charging pile power distribution unit structure, which rationally arranges the devices while meeting the electrical topology function, realizes the flexibility of output power within the limited space of the whole machine, and improves the charging efficiency to overcome the shortcomings of the existing technology that cannot rationally arrange while meeting the electrical topology function.

[0005] In order to achieve the above objectives, the present invention provides the following technical solutions:

[0006] A charging pile power distribution unit structure includes a contactor mounting part; the contactor mounting part adopts a pressure riveting process, and the M6 ​​nut is fixed to the contactor mounting part by pressure riveting. The contactor is fixed to the contactor mounting part by screws and M6 The nuts are fixed on the contactor mounting piece; a through hole is provided on the conductor, and the conductors are connected to the contactor through the through holes designed thereon, and the conductors are compressed and connected with nuts through the fixing screws on the contactor and the holes on the copper busbar to form a ring structure, thereby realizing electrical connection and relatively flexible power distribution; a first cable support fixture and a second cable support fixture are provided above the contactor mounting piece, and the first cable support fixture supports and fixes the cables, ensuring that the cables are in the appropriate position and avoiding the cables being messy. In addition to the function of supporting and fixing the cables, the second cable support fixture can also prevent the cabinet protection plate from sinking, thereby enhancing the structural stability of the cabinet; a sealing plate support fixture is provided below the contactor mounting piece, and the sealing plate support fixture is connected to the external sealing plate of the entire cabinet to protect the entire power distribution unit; a bottom crossbeam is provided at the bottom of the contactor mounting piece, and the bottom crossbeam is used to support the contactor mounting piece.

[0007] Furthermore, mounting member reinforcements are fixed on both sides of the bottom of the contactor mounting member, and the mounting member reinforcements are also connected to the bottom crossbeam.

[0008] Furthermore, connecting grooves are provided on both sides of the bottom cross beam, and the mounting member reinforcement is fixed in the connecting grooves to form a triangular fixing structure for strengthening support for the contactor mounting member.

[0009] Furthermore, a plurality of insulating column mounting holes are evenly arranged on the bottom crossbeam for supporting the conductor.

[0010] Furthermore, a beam reinforcement is provided on the bottom beam to enhance the strength of the bottom beam.

[0011] Furthermore, a fixing threaded hole is provided on the sealing plate support fixture, and the sealing plate support fixture is connected to the external sealing plate of the entire cabinet through the fixing threaded hole, thereby protecting the entire power distribution unit.

[0012] Furthermore, the first cable support fixture and the second cable support fixture are located on the same horizontal line, thereby ensuring the neatness and stability of the cable layout.

[0013] Furthermore, the contactor mounting member is entirely made of a sheet metal structure, which has good strength and workability.

[0014] Furthermore, the mounting member reinforcement is fixed to the connection groove and the bottom of the contactor mounting member by rivets.

[0015] Furthermore, the bottom cross beam and the cross beam reinforcement are fixed to the contactor mounting member by rivets.

[0016] Compared with the prior art, the present invention has the following beneficial technical effects:

[0017] The utility model provides a power distribution unit structure for a charging pile. A nut is secured to a contactor mounting member by pressure riveting, and a nut-screw combination ensures the stable position of the contactor. The conductor is compressed and connected by the nut through the screw on the contactor and the hole on the copper busbar, forming a stable ring-shaped structure. This ring-shaped electrical connection method not only ensures stable current transmission but also enables relatively flexible power distribution. The power distribution unit structure uses a common structure for both positive and negative poles, which standardizes the processing of parts and reduces the number of structural components. This means that during the manufacturing process, there is no need to prepare separate parts for the positive and negative poles, greatly simplifying the production process and reducing production costs. Furthermore, the reduced number of parts facilitates assembly, reduces assembly errors that may result from a large number of parts, and improves assembly efficiency and quality. Furthermore, the combined action of a first cable support fixture and a second cable support fixture ensures the orderly arrangement of the cables in the charging pile power distribution unit, preventing shaking and displacement of the cables due to their own weight, external forces, and other factors, thereby reducing friction and interference between the cables and between the cables and other components.

[0018] Specifically, the open layout design of the power distribution unit provides good conditions for heat dissipation, enabling the contactor to operate in a suitable temperature environment, further improving the reliability and stability of the entire power distribution unit.

[0019] Specifically, the power distribution unit's modular design allows for pre-fabrication during assembly. During assembly, the power distribution unit module can be assembled simultaneously with the cabinet's electrical installation. This feature significantly reduces assembly time and shortens the entire charging pile assembly cycle. Furthermore, by reducing the manpower required for assembly, labor costs are effectively saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is an overall front schematic diagram of the power distribution unit structure of a charging pile in an embodiment of the present utility model.

[0021] Figure 2 This is a schematic diagram of the overall back side of a power distribution unit structure of a charging pile in an embodiment of the present utility model.

[0022] Figure 3 This is a schematic diagram of a bracket for a power distribution unit structure of a charging pile in an embodiment of the present utility model.

[0023] Figure 4 This is an exploded schematic diagram of a bracket of a power distribution unit structure of a charging pile in an embodiment of the present utility model.

[0024] In the figure, 1. Contactor mounting part; 2. First cable support fixing part; 3. Bottom crossbeam; 4. Crossbeam reinforcement part; 5. Cover plate support fixing part; 6. Insulation column mounting hole; 7. Mounting part reinforcement part; 8. Second cable support fixing part; 9. Connection groove; 10. Fixing threaded hole; 11. Contactor; 12. Conductor. DETAILED DESCRIPTION

[0025] In order to help those skilled in the art better understand the present invention, 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 embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0026] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0027] The utility model proposes a power distribution unit structure, which can not only increase the flexibility of the power allocation of the whole machine, but also improve the charging efficiency, enhance the customer charging experience, reduce the charging time, improve the utilization rate of the charging pile, and effectively reduce the operating cost of the charger pile.

[0028] Use sheet metal processing technology (such as cutting, bending, etc.) to make the sheet metal material into a contactor mounting part 1. Its overall shape and size are determined according to the design requirements of the charging pile power distribution unit to ensure that there is enough space for installing the contactor and other related components;

[0029] See Figure 1, fix the M6 ​​nut on the contactor mounting part 1 by riveting process, and fix the M6 The nut is placed in the predetermined position, and appropriate pressure is applied using a riveting machine to embed the bottom material of the nut into the contactor mounting part 1 to form a firm connection; two first cable support fixtures 2 and one second cable support fixture 8 are installed at the predetermined position above the contactor mounting part 1, and ensure that the two are on the same horizontal line; use a suitable connection method (such as welding, screw fixing, etc.) to fix them to ensure that the cable support fixtures can stably support and fix the cables and maintain the neat arrangement of the cables; the first cable support fixture 2 is mainly designed to stably support the cables to prevent them from shaking; while the second cable support fixture 8 has a supporting function, its structure and shape must be able to effectively prevent the cabinet protection panel from sinking; the DC output cable can be fixed to the first cable support fixture 2 and the second cable support fixture 8 by a cable tie to avoid wiring entanglement and overlap; a cover plate support fixture 5 is provided under the contactor mounting part 1, and the cover plate support fixture 5 is used to connect to the cover plate outside the entire cabinet; a bottom crossbeam 3 is provided at the bottom of the contactor mounting part 1, and the bottom crossbeam 3 is used to support the contactor mounting part 1. Align the through holes on the conductor 12 with the corresponding connection points on the contactor 11, and press and connect them with nuts through the fixing screws on the contactor 11 and the holes on the copper busbar to form a ring structure between the conductors 12, ensuring the reliability and stability of the electrical connection and realizing the power distribution function.

[0030] In some preferred embodiments of the present invention, mounting reinforcements 7 are fixed to both sides of the bottom of the contactor mounting member 1. These reinforcements 7 are also connected to the bottom crossbeam 3, forming a triangular fixed shape. This structure is also formed by bending sheet metal and fixed with rivets, which can enhance the supporting strength of the contactor mounting member. During installation, ensure that the rivets are firmly installed and the components are tightly connected.

[0031] In some preferred embodiments of the present invention, connecting grooves 9 are provided on both sides of the bottom cross beam 3, and the mounting member reinforcement 7 is fixed in the connecting grooves 9; the mounting member reinforcement 7 is configured to have two thin feet at the bottom, which are convenient for inserting into the connecting grooves 9 for fixation.

[0032] In some preferred embodiments of the present invention, a plurality of insulating column mounting holes 6 are evenly arranged on the bottom crossbeam 3 , and the insulating column mounting holes 6 are used to fix the conductor 12 .

[0033] In some preferred embodiments of the present invention, a beam reinforcement 4 is provided on the bottom beam 3, and the beam reinforcement 4 is fixed to the bottom beam 3 and the contactor mounting member 1 by rivets, thereby further improving the strength of the bottom beam 3, being able to better withstand the weight and external force of the entire unit, and ensuring the stability of the entire structure.

[0034] In some preferred embodiments of the present invention, a fixing threaded hole 10 is provided on the sealing plate support fixture 5. The fixing threaded hole 10 facilitates the connection of the sealing plate support fixture 5 to the external sealing plate of the entire cabinet, thereby protecting the entire power distribution unit.

[0035] Throughout this specification, references to terms such as "some embodiments," "optionally," "further," or "some examples" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0036] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A power distribution unit structure of a charging pile, characterized in that: The invention comprises a contactor mounting member (1); a plurality of contactors (11) are fixed on the contactor mounting member (1); a plurality of conductors (12) are connected to the contactors; a first cable support fixture (2) and a second cable support fixture (8) are arranged above the contactor mounting member (1); a sealing plate support fixture (5) is arranged below the contactor mounting member (1); and a bottom crossbeam (3) is arranged at the bottom of the contactor mounting member (1).

2. The power distribution unit structure of a charging pile according to claim 1, characterized in that: Mounting member reinforcements (7) are fixed to both sides of the bottom of the contactor mounting member (1), and the mounting member reinforcements (7) are also connected to the bottom crossbeam (3).

3. The power distribution unit structure of a charging pile according to claim 2, characterized in that: Connecting grooves (9) are provided on both sides of the bottom cross beam (3), and the mounting member reinforcement (7) is fixed in the connecting grooves (9).

4. The power distribution unit structure of a charging pile according to claim 3, characterized in that: A plurality of insulating column mounting holes (6) are evenly arranged on the bottom crossbeam (3).

5. The power distribution unit structure of a charging pile according to claim 4, characterized in that: A crossbeam reinforcement (4) is provided on the bottom crossbeam (3).

6. The power distribution unit structure of a charging pile according to claim 1, characterized in that: The sealing plate support fixing member (5) is provided with a fixing threaded hole (10).

7. The power distribution unit structure of a charging pile according to claim 1, characterized in that: The first cable support fixing member (2) and the second cable support fixing member (8) are located on the same horizontal line.

8. The power distribution unit structure of a charging pile according to claim 1, characterized in that: The contactor mounting member (1) is entirely a sheet metal structure.

9. The power distribution unit structure of a charging pile according to claim 3, characterized in that: The mounting member reinforcement (7) is fixed to the connection groove (9) and the bottom of the contactor mounting member (1) by means of rivets.

10. The power distribution unit structure of a charging pile according to claim 5, characterized in that: The bottom crossbeam (3) and the crossbeam reinforcement (4) are fixed to the contactor mounting member (1) by means of rivets.

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