Heat dissipation mechanism of direct current charging pile

Abstract

The utility model discloses a heat dissipation mechanism of a direct current charging pile, which enables the occupied area of a case to be reduced and ensures reliable and sufficient heat dissipation of a heating element. The charging cabinet comprises a charging cabinet body, the interior of the charging cabinet body is provided with a heat dissipation channel, at least one side of the heat dissipation channel is provided with a penetrating installation surface, and the center position of a top cover plate of the charging cabinet body is provided with a center air outlet hole; a door frame with a shutter; the top cover comprises a top plate and surrounding plates, and heat dissipation holes are evenly distributed in the surrounding plates; the centrifugal fan comprises a bottom air inlet and an air outlet area annularly distributed on the periphery, a rotating shaft of the centrifugal fan is vertically arranged, and a bottom mounting flange is arranged at the bottom of a shell of the centrifugal fan; a bottom mounting flange of the centrifugal fan is fixedly connected to the position of a central air outlet hole of the top cover plate, the top cover covers the top of the charging cabinet body and is fixedly connected with the charging cabinet body through bolts on the periphery, and a heating element is arranged in the charging cabinet body.

Description

Technical Field

[0001] The utility model relates to the technical field of charging pile structures, in particular to a heat dissipation mechanism of a DC charging pile. Background Art

[0002] At present, the dustproof and heat dissipation structures of most electric vehicle DC charging piles, power control cabinets, energy storage cabinets and other products on the market are composed of three parts: shuttered door frames on both sides, central heat dissipation channels, and internal heat dissipation fans. The main heating elements are placed in the central heat dissipation channel. The shuttered door frames on both sides have one side for cold air inlet and the other side for hot air outlet. Several groups of heat dissipation fans are integrated on the shuttered door frames corresponding to the hot air outlets. The heat dissipation fans themselves will occupy part of the chassis space. Considering the heat dissipation efficiency and air duct layout, the internal heating elements also need to be at a certain distance from the shuttered door frames and heat dissipation fans on both sides. Therefore, the chassis length dimension L or width dimension D needs to be designed to be relatively large, which will cause the chassis to be bloated and fat, and the unit area will increase. The number of piles arranged in the station with the same area is relatively small, which will reduce the benefits. Summary of the invention

[0003] In view of the above problems, the utility model provides a heat dissipation mechanism for a DC charging pile, which reduces the footprint of the chassis and ensures reliable and sufficient heat dissipation of the heating elements.

[0004] The heat dissipation mechanism of the DC charging pile is characterized in that it includes:

[0005] A charging cabinet is provided with a heat dissipation channel inside, at least one side of the heat dissipation channel is provided with a through mounting surface, and a central air outlet is provided at the central position of the top cover plate of the charging cabinet;

[0006] Door frames with shutters;

[0007] A top cover, comprising a top plate and surrounding plates, wherein the surrounding plates are uniformly provided with heat dissipation holes;

[0008] and a centrifugal fan, comprising a bottom air inlet and air outlet areas arranged around the bottom, the rotating shaft of the centrifugal fan being arranged vertically, and a bottom mounting flange being provided at the bottom of the housing of the centrifugal fan;

[0009] The bottom mounting flange of the centrifugal fan is fixedly connected to the central air outlet of the top cover plate. The top cover is mounted on the top of the charging cabinet and is fastened with bolts around it. A heating element is arranged in the charging cabinet.

[0010] It is further characterized by:

[0011] On both sides of the heat dissipation channel, there are through mounting surfaces. Two groups of door frames with louvers are respectively installed on the through mounting surfaces through hinges. The cold air on both sides enters the heat dissipation channel through the window slits of the door frames with louvers.

[0012] At the bottom of the mounting flange at the bottom of the centrifugal fan, there is a silica gel ring, which is used for buffering to reduce vibration noise.

[0013] At the bottom of the surrounding plate of the top cover, there is an outward-expanded bending stop. The bending stop includes a horizontal part and a vertical part. The horizontal part presses against the top cover plate, and the inner surface of the vertical part fits the outer wall of the upper edge strip of the charging cabinet body. The vertical part is provided with positioning holes along the length direction, and the charging cabinet body is provided with corresponding threaded holes corresponding to the upper edge strip of the vertical part. Bolts pass through the positioning holes at the corresponding positions and are fastened to the threaded holes.

[0014] The height between the top plate and the top cover plate is greater than the height of the centrifugal fan to ensure the reliable installation of the centrifugal fan.

[0015] After adopting the structure of the present utility model, the original heat dissipation fan is arranged at the top of the charging cabinet body, and the heat dissipation fan is set as a centrifugal fan, so that the hot air in the charging cabinet body is driven by the centrifugal fan into the top cover, and is discharged through the centrifugal fan blades and the heat dissipation holes on the surrounding plate. The heating elements can be arranged in the charging cabinet body according to needs without considering the distance factor from the heat dissipation fan, making the arrangement of the heating elements convenient and fast; and moving the fan space to the top, the size of the charging cabinet body can be reduced, and thus the unit floor area is small. With the same station area, the number of pile bodies can be increased, thereby improving the income. Description of the Drawings

[0016] Figure 1 It is a three-dimensional exploded view of the present utility model (the arrow indicates the air flow direction);

[0017] Figure 2 It is a three-dimensional assembled view of the present utility model (the arrow indicates the air outlet direction);

[0018] Figure 3 It is a three-dimensional view of the centrifugal fan applicable to the present utility model;

[0019] Figure 4 It is an installation cross-sectional view of the bottom of the surrounding plate applicable to the present utility model and the charging cabinet body;

[0020] The names corresponding to the serial numbers in the figure are as follows:

[0021] Charging cabinet body 10, through installation surface 11, top cover plate 12, central air outlet hole 13, upper edge strip 14, threaded hole 141, door frame with louvers 20, top cover 30, top plate 31, enclosing plate 32, heat dissipation hole 33, bending stop 34, horizontal part 35, vertical part 36, positioning hole 361, centrifugal fan 40, housing 41, bottom air inlet 42, air outlet area 43, rotating shaft 44, bottom installation flange 45, heating element 50, silicone ring 60, bolt 70. Detailed implementation mode

[0022] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0023] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0024] In the description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific situations.

[0025] The present utility model will be described in detail below with reference to the drawings and in combination with embodiments.

[0026] The heat dissipation mechanism of the DC charging pile is shown in Figures 1 - 4 , which includes a charging cabinet body 10, a door frame with louvers 20, a top cover 30, and a centrifugal fan 40;

[0027] A heat dissipation channel is arranged inside the charging cabinet body 10, a heating element 50 is arranged in the heat dissipation channel, at least one side of the heat dissipation channel is provided with a through installation surface 11, and a central air outlet hole 13 is arranged at the central position of the top cover plate 12 of the charging cabinet body 10;

[0028] The top cover 30 includes a top plate 31 and surrounding plates 32. Heat dissipation holes 33 are evenly distributed on the surrounding plates 32.

[0029] The centrifugal fan 40 includes a housing 41. The housing 41 is provided with a bottom air inlet 42 and an air outlet area 43 distributed around the periphery. The rotating shaft 44 of the centrifugal fan 40 is arranged vertically, and a bottom mounting flange 45 is provided at the bottom of the housing 41 of the centrifugal fan 40.

[0030] In a specific embodiment, through mounting surfaces 11 are provided on both sides of the heat dissipation channel. Two groups of shutter door frames 20 are respectively installed on the through mounting surfaces 11 through hinges. Cold air on both sides enters the heat dissipation channel through the window slits of the shutter door frames 20.

[0031] The bottom mounting flange 45 of the centrifugal fan 40 is fixedly connected to the position of the central air outlet hole 13 of the top cover plate 12. The top cover 30 is covered on the top of the charging cabinet body 10 and is fixedly connected through bolts 70 around. And a silica gel ring 60 is provided at the bottom of the bottom mounting flange 45 of the centrifugal fan 40. The silica gel ring 60 is used for buffering to reduce vibration noise.

[0032] During specific implementation, the bottom of the surrounding plates 32 of the top cover 30 is provided with an outward-expanded bending stop 34. The bending stop 34 includes a horizontal part 35 and a vertical part 36. The horizontal part 35 presses against the top cover plate 12, and the inner surface of the vertical part 36 fits the outer wall of the upper edge strip 14 of the charging cabinet body 10. A positioning hole 361 is provided along the length direction of the vertical part 36. The charging cabinet body 10 is provided with a corresponding threaded hole 141 at the upper edge strip 14 corresponding to the vertical part 36. The bolt 70 passes through the positioning hole 361 at the corresponding position and is fastened to the threaded hole 141.

[0033] During specific implementation, the height between the top plate 31 and the top cover plate 12 is greater than the height of the centrifugal fan 40 to ensure reliable installation of the centrifugal fan 40.

[0034] The working principle is as follows: The original heat dissipation fan is arranged on the top of the charging cabinet body, and the heat dissipation fan is set as a centrifugal fan, so that the hot air in the charging cabinet body is driven by the centrifugal fan into the top cover, and is discharged through the centrifugal fan blades and the heat dissipation holes on the surrounding plates. The heating elements can be arranged in the charging cabinet body according to requirements without considering the distance factor from the heat dissipation fan, making the arrangement of the heating elements convenient and fast; and moving the fan space to the top, the size of the charging cabinet body can be reduced, and thus the unit floor area is small. With the same station area, the number of pile bodies can be increased, thereby increasing the revenue.

[0035] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

[0036] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. Cooling mechanism of a DC charging pile, characterized in that, It includes: A charging cabinet body, inside which a heat dissipation channel is provided. At least one side of the heat dissipation channel is provided with a through mounting surface, and a central air outlet hole is provided at the center position of the top cover plate of the charging cabinet body; A door frame with louvers; A top cover, which includes a top plate and surrounding plates, and heat dissipation holes are evenly distributed on the surrounding plates; And a centrifugal fan, which includes a bottom air inlet and an air outlet area distributed around the periphery. The rotating shaft of the centrifugal fan is arranged vertically, and a bottom mounting flange is provided at the bottom of the shell of the centrifugal fan; The bottom mounting flange of the centrifugal fan is fixedly connected to the position of the central air outlet hole of the top cover plate. The top cover is installed on the top of the charging cabinet body and is fixedly connected by bolts around. A heating element is provided inside the charging cabinet body.

2. The heat dissipation mechanism of the DC charging pile according to claim 1, wherein: Through mounting surfaces are provided on both sides of the heat dissipation channel. Two groups of door frames with louvers are respectively installed on the through mounting surfaces through hinges, and cold air on both sides enters the heat dissipation channel through the window slits of the door frames with louvers.

3. The heat dissipation mechanism of the DC charging pile according to claim 1, characterized in that: A silica gel ring is provided at the bottom of the bottom mounting flange of the centrifugal fan.

4. The heat dissipation mechanism of the DC charging pile according to claim 1, characterized in that: An outward-expanded bending stop is provided at the bottom of the surrounding plates of the top cover. The bending stop includes a horizontal part and a vertical part. The horizontal part presses against the top cover plate, and the inner surface of the vertical part fits the outer wall of the upper edge strip of the charging cabinet body. Positioning holes are provided along the length direction of the vertical part, and corresponding threaded holes are provided on the upper edge strip of the charging cabinet body corresponding to the vertical part. After the bolts pass through the positioning holes at the corresponding positions, they are fastened to the threaded holes.

5. The heat dissipation mechanism of the DC charging pile according to claim 1, characterized in that: The height between the top plate and the top cover plate is greater than the height of the centrifugal fan.

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