Direct current charging pile with low noise and high heat dissipation efficiency

Abstract

The utility model provides a direct current charging pile with low noise and high heat dissipation efficiency, and belongs to the technical field of electric vehicle power systems. Comprising a base, a machine shell, a left side door plate, a first dustproof net plate, a right side door plate, a second dustproof net plate, a fan wind scooper, a centrifugal fan, a multi-layer sound insulation structure, a top shell installation cover, a hanging ring, a gun outlet buckle, a gun chuck, a gun stock, a front door plate, a screen panel, a support, a battery module and a shunt with an electric meter. An optimized heat dissipation system composed of the fan wind scooper and the frequency conversion centrifugal fan is matched with the heat dissipation channels on the two sides, so that the heat dissipation efficiency is remarkably improved; the operation noise of the equipment is greatly reduced by a multi-layer sound insulation structure; according to the intelligent power distribution scheme with the ammeter diverter, the electric energy conversion efficiency is improved, stable operation under the large power of 600kW is guaranteed, the noise is controlled to be below 65dB, the problems of insufficient heat dissipation, overlarge noise and low energy efficiency are solved on the whole, the service life of equipment is prolonged, and the operation and maintenance cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of the power system of electric vehicles, and particularly relates to a DC charging pile with low noise and high heat dissipation efficiency. Background Technique

[0002] The DC charging pile is a key device for the rapid charging of electric vehicles. It directly charges the power battery by converting the grid alternating current into high-voltage direct current. Its core technologies include power electronic conversion, intelligent control, and thermal management systems, and it adopts an internationally common standardized interface. With the development of the electric vehicle industry, this device has been rapidly iterated, evolving from the early basic charging function to high-power ultra-fast charging and bidirectional charging and discharging. It is mainly deployed at transportation hubs and public charging stations and is becoming an important part of the new power system.

[0003] Currently, during the charging process of electric vehicles, the charging pile generates a large amount of heat due to high-power operation, resulting in an increased load on the heat dissipation system and accompanied by obvious noise problems. At the same time, the power conversion efficiency is relatively low, and part of the energy is lost in the form of heat, which not only causes energy waste but also affects the stability and service life of the device. These problems not only reduce the charging experience of users but also increase the maintenance cost of operators, restricting the efficient operation of the charging infrastructure. Content of the Utility Model

[0004] The purpose of the utility model is to provide a DC charging pile with low noise and high heat dissipation efficiency, aiming to solve the problems proposed in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A DC charging pile with low noise and high heat dissipation efficiency includes a base, a machine shell, a left door panel, a first dust-proof net panel, a right door panel, a second dust-proof net panel, a fan air guide cover, a centrifugal fan, a multi-layer sound insulation structure, a top shell mounting cover, a lifting ring, a gun outlet buckle, a gun chuck, a gun stock, a front door panel, a screen panel, a bracket, a battery module, and a charged meter shunt.

[0007] A multi-layer sound insulation structure is arranged on the inner wall of the machine shell. The left door panel and the right door panel are respectively provided with the first dust-proof net panel and the second dust-proof net panel to form a double-sided heat dissipation channel. The charged meter shunt supports intelligent power distribution for one machine with four guns.

[0008] As a preferred scheme of the utility model, the fan air guide cover and the centrifugal fan form a forced heat dissipation system. The fan air guide cover adopts a streamlined air duct design and is internally provided with a flow guide plate to reduce air flow turbulence and eddy currents.

[0009] As a preferred embodiment of the present utility model, the centrifugal fan adopts variable frequency control and is combined with large-area heat dissipation holes to achieve rapid heat dissipation.

[0010] As a preferred embodiment of the present utility model, the multi-layer sound insulation structure is composed of a composite of sound-absorbing cotton and sound insulation board, and covers the inner wall of the casing and the periphery of the electrical components.

[0011] As a preferred embodiment of the present utility model, the charged ammeter shunt supports the dual-gun simultaneous charging mode. The screen panel is embedded in the front door panel and is electrically connected to the charged ammeter shunt to display the charging status and power distribution information in real time.

[0012] As a preferred embodiment of the present utility model, the gun chuck and the gun stock are fixed inside the front door panel, and the gun ejection buckle is arranged at the upper end of the gun stock.

[0013] As a preferred embodiment of the present utility model, the battery module is fixed inside the casing through a bracket and is electrically connected to the charged ammeter shunt.

[0014] As a preferred embodiment of the present utility model, the top shell mounting cover covers the top of the casing, and lifting rings are arranged at its four corners for hoisting and transporting the equipment.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows: The optimized heat dissipation system composed of the fan air guide cover and the variable frequency centrifugal fan, in combination with the bilateral heat dissipation channels, significantly improves the heat dissipation efficiency; the multi-layer sound insulation structure greatly reduces the operation noise of the equipment; the intelligent power distribution scheme of the charged ammeter shunt improves the electric energy conversion efficiency, ensuring stable operation under a high power of 600 kW and controlling the noise below 65 dB. Overall, it solves the problems of insufficient heat dissipation, excessive noise and low energy efficiency, extends the equipment life and reduces the operation and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. Among them:

[0017] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 It is a schematic diagram of another perspective of the overall structure of the present utility model;

[0019] Figure 3 It is a partial cross-sectional view of the overall structure of the present utility model;

[0020] Figure 4 This is another perspective schematic diagram of the partial section of the overall structure of the present utility model.

[0021] In the figure: 1, base; 2, housing; 3, left door panel; 4, first dust-proof net plate; 5, right door panel; 6, second dust-proof net plate; 7, fan air guide cover; 8, centrifugal fan; 9, multi-layer sound insulation structure; 10, top shell mounting cover; 11, lifting ring; 12, gun outlet buckle; 13, gun chuck; 14, gunstock; 15, front door panel; 16, screen panel; 17, bracket; 18, battery module; 19, ammeter shunt. Specific embodiments

[0022] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the specific embodiments of the present utility model will be described in detail below with reference to the accompanying drawings of the specification.

[0023] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Those skilled in the art can make similar generalizations without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0024] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure or characteristic that can be included in at least one implementation manner of the present utility model. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it an embodiment that is separate or selectively exclusive of other embodiments.

[0025] Embodiment

[0026] Referring to Figures 1 to 4 , which is an embodiment of the present utility model. This embodiment provides a DC charging pile with low noise and high heat dissipation efficiency, including a base 1, a housing 2, a left door panel 3, a first dust-proof net plate 4, a right door panel 5, a second dust-proof net plate 6, a fan air guide cover 7, a centrifugal fan 8, a multi-layer sound insulation structure 9, a top shell mounting cover 10, a lifting ring 11, a gun outlet buckle 12, a gun chuck 13, a gunstock 14, a front door panel 15, a screen panel 16, a bracket 17, a battery module 18, and an ammeter shunt 19;

[0027] A multi-layer sound insulation structure 9 is provided on the inner wall of the housing 2. The left door panel 3 and the right door panel 5 are respectively provided with a first dust-proof net plate 4 and a second dust-proof net plate 6 to form a double-sided heat dissipation channel. The ammeter shunt 19 supports intelligent power distribution for one machine with four guns.

[0028] Among them, by setting up the double-sided heat dissipation channels formed by the cooperation of the first dust-proof net plate 4, the right door panel 5 and the second dust-proof net plate 6, in combination with the multi-layer sound insulation structure 9 and the ammeter shunt 19, the intelligent power distribution function of one charger with four guns for high-power charging piles is realized. At the same time, through the combination of the double-sided heat dissipation channels and the multi-layer sound insulation structure 9, both the heat dissipation effect is ensured and the noise during the charging process is effectively reduced.

[0029] Specifically, the fan air guide cover 7 and the centrifugal fan 8 form a forced heat dissipation system. The fan air guide cover 7 adopts a streamline air duct design and is provided with a flow guide plate inside to reduce air flow turbulence and eddy currents.

[0030] Among them, the fan air guide cover 7 adopts a streamline air duct design and is provided with a flow guide plate, and forms an optimized forced heat dissipation system in cooperation with the centrifugal fan 8, making the air flow more smooth, significantly reducing the generation of air flow turbulence and eddy currents, and effectively reducing the noise caused by poor air flow.

[0031] Furthermore, the centrifugal fan 8 adopts variable frequency control and, in combination with large-area heat dissipation holes, achieves rapid heat dissipation.

[0032] Among them, the centrifugal fan 8 adopts variable frequency control and, in combination with the large-area heat dissipation holes on the machine shell 2, achieves a rapid and efficient heat dissipation effect, ensures the high-efficiency operation of the charging module, and extends the service life of the equipment.

[0033] Preferably, the multi-layer sound insulation structure 9 is composed of a composite of sound-absorbing cotton and sound insulation board, covering the inner wall of the machine shell 2 and the periphery of the electrical components.

[0034] Among them, the multi-layer sound insulation structure 9 is composed of a composite of sound-absorbing cotton and sound insulation board, covering the inner wall of the machine shell 2 and the periphery of the electrical components, forming multiple noise reduction barriers, significantly reducing the noise when the charging pile works, and improving the comfort of the use environment.

[0035] Furthermore, the ammeter shunt 19 supports the double-gun simultaneous charging mode. The screen panel 16 is embedded in the front door panel 15 and is electrically connected to the ammeter shunt 19 to display the charging status and power distribution information in real time.

[0036] Among them, the ammeter shunt 19 supports the double-gun simultaneous charging mode, and displays the charging status and power distribution information in real time through the screen panel 16, which not only meets the fast charging requirements of large-capacity battery models such as heavy trucks, but also provides an intuitive human-machine interaction experience.

[0037] Furthermore, the gun chuck 13 and the gun stock 14 are fixed inside the front door panel 15, and the gun ejection buckle 12 is arranged at the upper end of the gun stock 14.

[0038] Among them, the gun chuck 13 and the gunstock 14 are fixed to the inner side of the front door panel 15 through the bracket 17, and the gun ejection buckle 12 is arranged at the upper end of the gunstock 14. This structural design makes the layout of the charging gun reasonable and convenient to operate. At the same time, the design of separating the strong and weak electricity reduces electromagnetic interference.

[0039] Furthermore, the battery module 18 is fixed inside the casing 2 through the bracket 17 and is electrically connected to the ammeter shunt 19.

[0040] Among them, the battery module 18 is fixed inside the casing 2 through the bracket 17, forming a simple electrical connection with the ammeter shunt 19. This layout not only facilitates installation and maintenance, but also realizes the separation of strong and weak electricity, reducing electromagnetic interference.

[0041] Still further, the top shell mounting cover 10 covers the top of the casing 2, and lifting rings 11 are provided at its four corners for hoisting and transporting the equipment.

[0042] Among them, the top shell mounting cover 10 covers the top of the casing 2 and is provided with lifting rings 11, which not only protects the internal components, but also facilitates the hoisting and transporting of the equipment, improving the practicability and installation convenience of the product.

[0043] During use, when the vehicle is connected to the charging gun and fixed by the gun chuck 13 and the gunstock 14, the ammeter shunt 19 intelligently identifies the vehicle model requirements and distributes power, and supports a single gun of 600 kW or a four-gun balanced mode; during the charging process, the heat generated by the battery module 18 is quickly discharged through the forced cooling system, and the streamline air duct of the centrifugal fan 8 cooperating with the fan air guide cover 7 through the bilateral cooling channels. At the same time, the multi-layer sound insulation structure 9 absorbs the operating noise of the equipment; the screen panel 16 displays the charging parameters in real time, and the user can monitor the whole process through the operation interface of the front door panel 15; the whole set of system operates stably inside the casing 2 supported by the base 1, and the top shell mounting cover 10 and the lifting rings 11 ensure the protection and transportability of the equipment, realizing the efficient coordination of the whole process from charging start, power distribution, thermal management to status monitoring.

[0044] In summary, through the bilateral cooling channel design composed of the left door panel 3, the first dust-proof net panel 4, the right door panel 5 and the second dust-proof net panel 6, cooperating with the multi-layer sound insulation structure 9, not only ensures good heat dissipation effect, but also significantly reduces the working noise; the streamline fan air guide cover 7 and the optimized forced cooling system of the variable-frequency centrifugal fan 8 realize fast heat dissipation while reducing the air flow noise; the intelligent power distribution system with one machine and four guns, combined with the intuitive display of the screen panel 16, meets the charging requirements of different vehicle models, and the overall structure reflects the multiple advantages of heat dissipation efficiency, noise reduction performance, use convenience and maintenance convenience.

[0045] Importantly, it should be noted that the construction and arrangement of the present application shown in multiple different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who refer to this disclosure should easily understand that many modifications are possible without substantially departing from the novel teachings and advantages of the subject matter described in this application (for example, the dimensions, scales, structures, shapes and proportions of various elements, as well as parameter values (such as temperature, pressure, etc.), installation arrangements, use of materials, color, orientation changes, etc.). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature, number or position of discrete elements may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means plus function" clause is intended to cover the structures that perform the recited function herein, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present utility model. Therefore, the present utility model is not limited to specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0046] In addition, in order to provide a concise description of the exemplary embodiments, not all features of the actual embodiments may be described (i.e., those features that are not relevant to the currently contemplated best mode of carrying out the present utility model or those features that are not relevant to the implementation of the present utility model).

[0047] It should be understood that in the development of any actual implementation, as in any engineering or design project, a large number of specific implementation decisions may be made. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, without excessive experimentation, such development efforts will be a routine task of design, manufacturing and production.

[0048] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and not to limit them. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model may be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present utility model, and all of them should be covered within the scope of the claims of the present utility model.

Claims

1. A DC charging pile with low noise and high heat dissipation efficiency, characterized in that: It includes a base (1), a casing (2), a left door panel (3), a first dust-proof net panel (4), a right door panel (5), a second dust-proof net panel (6), a fan air guide cover (7), a centrifugal fan (8), a multi-layer sound insulation structure (9), a top shell mounting cover (10), a lifting ring (11), a gun ejection buckle (12), a gun chuck (13), a gunstock (14), a front door panel (15), a screen panel (16), a bracket (17), a battery module (18) and a charged meter shunt (19); A multi-layer sound insulation structure (9) is provided on the inner wall of the casing (2). The first dust-proof net panel (4) and the second dust-proof net panel (6) are respectively provided on the left door panel (3) and the right door panel (5) to form a bilateral heat dissipation channel. The charged meter shunt (19) supports intelligent power distribution for one machine with four guns.

2. The DC charging pile with low noise and high heat dissipation efficiency according to claim 1, characterized in that: The fan air guide cover (7) and the centrifugal fan (8) form a forced heat dissipation system. The fan air guide cover (7) adopts a streamline air duct design and is internally provided with a deflector plate to reduce air flow turbulence and eddy currents.

3. The DC charging pile with low noise and high heat dissipation efficiency according to claim 2, characterized in that: The centrifugal fan (8) adopts variable frequency control and is combined with large-area heat dissipation holes to achieve rapid heat dissipation.

4. A DC charging pile with low noise and high heat dissipation efficiency according to claim 3, characterized in that: The multi-layer sound insulation structure (9) is composed of a composite of sound-absorbing cotton and sound insulation board, covering the inner wall of the casing (2) and the periphery of electrical components.

5. The DC charging pile with low noise and high heat dissipation efficiency according to claim 4, characterized in that: The charged meter shunt (19) supports a double-gun simultaneous charging mode. The screen panel (16) is embedded in the front door panel (15) and is electrically connected to the charged meter shunt (19) to display the charging status and power distribution information in real time.

6. The DC charging pile with low noise and high heat dissipation efficiency according to claim 5, wherein: The gun chuck (13) and the gunstock (14) are fixed inside the front door panel (15), and the gun ejection buckle (12) is provided at the upper end of the gunstock (14).

7. The DC charging pile with low noise and high heat dissipation efficiency according to claim 6, wherein: The battery module (18) is fixed inside the casing (2) through the bracket (17) and is electrically connected to the charged meter shunt (19).

8. The DC charging pile with low noise and high heat dissipation efficiency according to claim 7, characterized in that: The top shell mounting cover (10) covers the top of the casing (2), and lifting rings (11) are provided at its four corners for hoisting and transporting the equipment.

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