CN215793242U

CN215793242U - Fill electric pile cooling system

Info

Publication number: CN215793242U
Application number: CN202022830404.7U
Authority: CN
Inventors: 甘绍朋; 林剑勇; 李远征; 樊志强
Original assignee: Shenzhen Kehua Hengsheng Technology Co ltd
Current assignee: Shenzhen Kehua Hengsheng Technology Co ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2022-02-11
Anticipated expiration: 2030-11-30

Abstract

The utility model relates to the technical field of charging piles, and provides a charging pile heat dissipation system which comprises a main heat dissipation air duct and a first auxiliary heat dissipation air duct, wherein the main heat dissipation air duct discharges most of hot air of a power module through a first air inlet and a first air outlet; the first auxiliary heat dissipation air duct enables cold air to enter from the first fan through the first fan and the first ventilation opening formed in the first partition plate, flow through the device cavity and enter the power module cavity through the first ventilation opening to perform neutralization heat dissipation; the first auxiliary heat dissipation air duct mainly reduces the temperature of the use environment of the device, can neutralize high-temperature air in the cavity of the power module, and reduces the heat radiation of the cavity of the device, so that the heat dissipation effect of the cavity of the device is improved. Through the combined type heat dissipation system, effective heat dissipation of the power module cavity and the device cavity can be achieved only by a small number of fans of the charging pile product, stability of the device and service life of the device are guaranteed, product failure rate is reduced, and operation and maintenance cost is reduced.

Description

Fill electric pile cooling system

Technical Field

The utility model relates to the technical field of charging piles, in particular to a charging pile heat dissipation system.

Background

Charging pile is a charging device for outdoor use, and in the national standard requirement, charging system needs to satisfy the operating requirement that the volume does not decrease under the condition of 50 ℃ of ambient temperature, and in order to satisfy the requirement, need design more fans on the high-power charging pile product business turn over wind channel and be used for the heat dissipation, however, these fans can only often satisfy the heat dissipation demand of power module, and the air temperature to the product inside rarely has the cooling effect. The heat dissipation device comprises a power module, a fan, a heat pipe and a heat dissipation pipe, wherein the power module and each device are generally arranged relatively independently, the power module mainly dissipates heat through air cooling, a small part of heat is transferred to the air inside the charging pile and the part where the device is located through heat radiation, the heat discharged by the power module through air cooling can be discharged to the outside of the charging pile through the fan on an air channel of the charging pile, the heat radiated to the air inside the charging pile can be accumulated inside the charging pile, the power of the charging pile is higher, the heat accumulation is more obvious, the temperature of the air inside the charging pile is continuously increased, the use reliability and the service life of the internal device are influenced, and the safety performance of the charging pile is influenced; in addition, the heat radiation of the device is affected by the heat entering the device, which affects the reliability and service life of the internal device.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a charging pile heat dissipation system, and aims to solve the technical problems that in the prior art, a power module in a charging pile product and an area where a device is located are respectively relatively closed, and a cavity of the device is effectively cooled.

In order to solve the technical problem, the utility model provides a charging pile heat dissipation system, which is used for dissipating heat inside a charging pile chassis and comprises a first partition plate longitudinally arranged in an inner cavity of the chassis, wherein the first partition plate divides the inner cavity of the chassis into a power module cavity for placing a power module and a device cavity for placing an electrical device, and the charging pile heat dissipation system further comprises:

the main heat dissipation air duct comprises a first air inlet and a first air outlet which are respectively arranged on the shells on the two sides of the chassis, the power module chamber is positioned between the first air inlet and the first air outlet, and external cold air enters from the first air inlet and is discharged through the first air outlet so as to directly discharge and dissipate heat of the power module;

first supplementary heat dissipation wind channel, including be used for right the device cavity carries out radiating first fan, and set up in the first vent of first baffle lower part, first fan through with the second air intake extraction cold wind that first air intake homonymy set up gets into inside the device cavity, cold wind flows through behind the device cavity by first vent gets into the power module cavity is in order right the power module cavity carries out the neutralization heat dissipation.

Furthermore, the air conditioner further comprises a second auxiliary heat dissipation air duct, wherein the second auxiliary heat dissipation air duct comprises a second fan and a second air outlet, the second fan is arranged on one side of the first air outlet, and the second fan extracts heat inside the case and discharges the heat through the second air outlet.

Furthermore, a second air vent is formed in the top of the power module cavity, and air obtained after neutralization and heat dissipation of the power module cavity in the first auxiliary heat dissipation air duct passes through the second air vent and is exhausted through the second air vent.

Furthermore, a plurality of second partition plates are arranged on the periphery of the cavity of the power module to guide cold air entering from the first air inlet to flow through the power module and guide hot air after heat dissipation of the power module to be discharged through the first air outlet.

Furthermore, the plurality of second partition plates comprise a front partition plate arranged on one side, close to the first air inlet, of the power module cavity and a rear partition plate arranged on one side, close to the first air outlet, of the power module cavity.

Further, an L-shaped top partition plate is arranged between the first partition plate and the rear side shell of the chassis, and the L-shaped top partition plate is located above the power module cavity and is used for being matched with the front partition plate and the rear partition plate to prevent hot air flowing through the power module from flowing back.

Furthermore, the first air inlet is communicated with the second air inlet, and the first air outlet is communicated with the second air outlet.

Further, the first air inlet and the second air inlet which are communicated with each other are air inlet shutters, the first air outlet and the second air outlet which are communicated with each other are air outlet shutters, and the air inlet shutters and the air outlet shutters are arranged oppositely.

Furthermore, the first fan is located in an area enclosed by the L-shaped top partition plate and the shell of the case, the top end of the air inlet shutter extends to the area where the first fan is located, and the second fan is arranged at the top of the air outlet shutter.

Furthermore, the power module is close to the one end of air intake shutter sets up the module fan that is used for extracting cold wind, the power module is close to the one end of air outlet shutter is left and is equipped with the module vent that is used for hot-blast outflow.

The charging pile cooling system provided by the utility model has the beneficial effects that: compared with the prior art, the charging pile heat dissipation system comprises a main heat dissipation air channel and a first auxiliary heat dissipation air channel, wherein the main heat dissipation air channel is a main heat dissipation mode of a power module, and most of hot air of the power module is discharged to the outside of a case through a first air inlet and a first air outlet directly by strong air pressure of the power module; the first auxiliary heat dissipation air duct is mainly a device heat dissipation air duct, and cold air enters from the first fan through the first fan and the first ventilation opening formed in the lower portion of the first partition plate, flows through the interior of the device cavity and enters the interior of the power module cavity through the first ventilation opening for neutralization and heat dissipation; the first auxiliary heat dissipation air duct mainly reduces the temperature of the use environment of the device, can neutralize high-temperature air in the cavity of the power module, and reduces the heat radiation of the cavity of the device, so that the heat dissipation effect of the cavity of the device is improved. Through the combined type heat dissipation system, effective heat dissipation of the power module cavity and the device cavity can be achieved only by a small number of fans of the charging pile product, stability of the device and service life of the device are guaranteed, product failure rate is reduced, and operation and maintenance cost is reduced.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings that are needed in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:

fig. 1 is a schematic front view of a charging pile heat dissipation system according to an embodiment of the utility model;

FIG. 2 is a schematic right view of the embodiment of FIG. 1;

FIG. 3 is a schematic left side view of the embodiment of FIG. 1;

FIG. 4 is a schematic view of the main cooling air duct of the embodiment shown in FIG. 1;

FIG. 5 is a schematic view illustrating a first auxiliary cooling air duct of the embodiment shown in FIG. 1;

fig. 6 is a schematic view of an air path direction of the second auxiliary cooling air duct in the embodiment of fig. 1.

Description of reference numerals:

1. a chassis; 11. a power module chamber; 111. a power module; 12. a device chamber; 13. an air inlet shutter; 14. an air outlet shutter; 15. an air inlet duct cavity; 16. an air outlet duct cavity; 2. a first separator; 21. a first vent; 3. a second fan; 4. a first fan; 5. a front bulkhead; 6. a rear bulkhead; 7. an L-shaped top baffle plate.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "communicating," and the like are to be construed broadly, e.g., as meaning both mechanically and electrically connected; the connection may be direct, indirect or internal, or may be a connection between two elements or an interaction relationship between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Preferred embodiments of the present invention are described below with reference to the accompanying drawings:

as shown in fig. 1, in this embodiment, the charging pile heat dissipation system is configured to dissipate heat inside a charging pile chassis 1, and includes a first partition plate 2 longitudinally disposed in an inner cavity of the chassis 1, the first partition plate 2 partitions the inner cavity of the chassis 1 into a power module cavity 11 for placing a power module 111 and a device cavity 12 for placing an electrical device (not shown in the figure), and the charging pile heat dissipation system further includes a main heat dissipation air duct and a first auxiliary heat dissipation air duct. The main heat dissipation air duct includes a first air inlet (not shown) and a first air outlet (not shown) respectively disposed on the two side shells of the chassis 1, the power module chamber 11 is located between the first air inlet and the first air outlet, and external cold air enters from the first air inlet and is discharged through the first air outlet to directly discharge heat to the power module 111.

Specifically, in this embodiment, the power module chamber 11 and the device chamber 12 partitioned by the first partition 2 longitudinally disposed inside the chassis 1 are relatively independent, and optionally, the device chamber 12 is located in a front region of the chassis 1, and the power module chamber 11 is located in a rear region of the chassis 1.

As shown in fig. 4, the main heat dissipation duct belongs to a direct-exhaust heat dissipation, and mainly utilizes the strong wind pressure of the power module 111 itself, and the cold wind directly enters through the first wind inlet, and after flowing through the power module chamber 11, the hot wind is discharged from the first wind outlet, and most of the heat generated by the power module 111 is discharged to the outside of the chassis 1.

As shown in fig. 1 and 2, the first auxiliary heat dissipation air duct includes a first fan 4 for dissipating heat from the device cavity 12, and a first vent 21 disposed at a lower portion of the first partition 2, the first fan 4 extracts cold air through a second air inlet (not labeled in the figure) disposed at the same side as the first air inlet and enters the device cavity 12, the cold air dissipates heat through the device cavity 12 from top to bottom, the dissipated medium-temperature air enters the power module cavity 11 through the first vent 21, and in the power module cavity 11, the medium-temperature air neutralizes the high-temperature air in the power module cavity 11, thereby reducing heat radiation of the power module cavity 11 to the device cavity 12, and improving the heat dissipation effect of the device cavity 12.

Specifically, as shown in fig. 5, the first auxiliary heat dissipation air duct is mainly a device heat dissipation air duct, preferably, the first fan 4 disposed at the upper portion of the device chamber 12 is communicated with the second air inlet, the first ventilation opening 21 disposed at the lower portion of the first partition board 2 is used to communicate the device chamber 12 with the power module chamber 11, and specifically, the first fan 4 may be mounted on the first partition board 2. Inside first fan 4 will fill the outside low temperature air extraction of electric pile and enter into device cavity 12 through the second air intake, the low temperature air carries out the heat exchange with the inside air of device cavity 12, forms the medium temperature air, inside the medium temperature air enters into power module cavity 11 through first vent 21 of first baffle 2 lower part again, the medium temperature air carries out the heat exchange with the high temperature air in the power module cavity 11 to the heat radiation of power module cavity 11 to device cavity 12 has been reduced. In this first supplementary heat dissipation wind channel, the air flows through device cavity 12 and power module cavity 11 in proper order, can realize the cooling of two cavities simultaneously, to electric device, it is in a lower temperature value to have ensured its service environment temperature, to power module 111, can accelerate power module 111 self heat radiation, improve self heat dispersion, in addition, the air that gets into power module cavity 11 can reduce the temperature of the inside metalwork of this cavity, thereby reduce the heat radiation volume of metal to the air inlet region, ensure the radiating effect.

The charging pile heat dissipation system of the embodiment belongs to a combined type heat dissipation system, and multiple heat dissipation modes have comprehensive effects and supplement each other. The main heat dissipation air duct is a main heat dissipation mode of the power module 111, most of heat of the power module 111 can be taken away, and no fan is arranged on the main heat dissipation air duct, so that compared with a structure with a fan, the overall size of a charging pile product can be reduced, the volume and the occupied area of the charging pile product can be reduced, the product cost and the station building cost can be reduced to a certain extent, and the product competitiveness can be improved; the first auxiliary heat dissipation air duct is mainly used for reducing the air temperature inside the device cavity 12, and meanwhile, the air temperature inside the power module cavity 11 is reduced in an auxiliary mode, so that the temperature of the use environment of an electric device can be guaranteed, the heat radiation effect of the power module 111 is indirectly improved, and the heat dissipation rate of the power module 111 is improved. The charging pile product can meet the requirements of national standard heat dissipation conditions through a small number of fans, the internal air temperature of the product can be reduced, the stability and the service life of the device are guaranteed, the failure rate of the product is reduced, and the operation and maintenance cost of the product is reduced; in addition, a small amount of fans not only can reduce the use consumption of charging pile products, but also are favorable for reducing the noise generated when charging pile products work.

As shown in fig. 6, in this embodiment, the charging pile heat dissipation system further includes a second auxiliary heat dissipation air duct, the second auxiliary heat dissipation air duct includes a second fan 3 and a second air outlet (not shown) disposed on one side of the first air outlet, and the second fan 3 extracts heat inside the case 1 and discharges the heat through the second air outlet.

Specifically, the second auxiliary heat dissipation air duct belongs to the auxiliary heat dissipation air duct of the power module 111, and after the main heat dissipation air duct dissipates heat to the power module 111, most of the hot air is discharged through the first air outlet, and a small part of the hot air is retained in the first air outlet area inside the case 1. Through set up second fan 3 and second air outlet in first air outlet place one side, can be with the remaining heat extraction of quick-witted case 1 inside and by the discharge of second air outlet. Preferably, the number of the second fans 3 may be two, and the second fans 3 may stir the air inside the case 1 while discharging all the hot air remaining in the air duct to the outside of the case 1, so that the temperature of the air inside tends to be uniform.

In another embodiment, a second ventilation opening (not shown) is formed in the top of the power module cavity 11, and the air neutralized and radiated by the first auxiliary heat dissipation air duct to the power module cavity 11 passes through the second ventilation opening and is exhausted to the outside of the case 1 through the second ventilation opening under the air draft action of the second fan 3.

Specifically, the second auxiliary heat dissipation air duct can take away the waste heat discharged by the power module 111, and meanwhile, the second auxiliary heat dissipation air duct also takes part in heat dissipation of the first auxiliary heat dissipation air duct to take away high-temperature gas inside the charging pile; the second fan 3 participates in the heat dissipation of the first auxiliary heat dissipation air duct and the second auxiliary heat dissipation air duct at the same time, and the heat of the first auxiliary heat dissipation air duct can be accelerated to circulate while the waste heat discharged by the power module 111 is extracted, so that the cooling is accelerated, and the second fan 3 is fully and effectively utilized.

In another embodiment, a plurality of second partition plates are disposed around the power module chamber 11 to guide the cold air entering from the first air inlet to flow through the power module 111, and guide the hot air after dissipating heat from the power module 111 to be discharged through the first air outlet.

Specifically, the power module 111 is disposed at a distance from the first air inlet, the power module 111 itself has a certain gap to form an air path, and cold air entering from the first air inlet passes through the power module 111 itself to dissipate heat of the power module 111 to the maximum extent, so that the second partition is disposed to block gaps around the power module 111, thereby ensuring that most of the cold air flows through the inside of the power module 111 to dissipate heat, and improving the heat dissipation effect of the power module 111.

As shown in fig. 1, in the present embodiment, the second partition plates include a front partition plate 5 disposed on a side of the power module chamber 11 close to the first air inlet, and a rear partition plate 6 disposed on a side of the power module chamber 11 close to the first air outlet.

Specifically, in this embodiment, the power module 111 is two-layer setting about being in power module cavity 11, preceding baffle 5 and back baffle 6 are used for the clearance between lower floor's power module 111 and the clearance between power module 111 and the quick-witted case 1 bottom about the shutoff, preceding baffle 5 encloses into air inlet duct chamber 15 with the casing that fills the first air intake one side of electric pile box jointly, back baffle 6 encloses into air outlet duct chamber 16 with the casing that fills the first air outlet one side of electric pile box jointly, thereby make the cold wind that first air intake got into only can pass from the internal clearance of power module 111 itself, thereby ensure the good radiating effect to power module 111.

Specifically, after the main heat dissipation duct dissipates heat from the power module 111, most of the hot air is discharged from the first air outlet, and a small portion of the hot air is remained in the first air outlet area inside the chassis 1, that is, a small portion of the hot air is remained in the air outlet duct cavity 16, and the second fan 3 can extract and discharge the residual heat inside the air outlet duct cavity 16.

As shown in fig. 1, 2 and 3, in the present embodiment, an L-shaped top partition 7 is disposed between the first partition 2 and the rear side casing of the chassis 1, and the L-shaped top partition 7 is located above the power module cavity 11 and is used for cooperating with the front partition 5 and the rear partition 6 to prevent the hot air flowing through the power module 111 from flowing back.

Specifically, in this embodiment, the vertical portion of the L-shaped top partition 7 is located between the front partition 5 and the rear partition 6, the vertical portion of the L-shaped top partition 7 extends to the top of the chassis 1, and the horizontal portion of the L-shaped top partition 7 is located above the power module cavity 11 and extends to the first air inlet and the housing of the chassis 1 at the side where the first air inlet is located. The width of the L-shaped top partition 7 is kept the same as the power module chamber 11 to ensure a relative tightness of the power module chamber 11. The L-shaped top partition 7 is provided to cooperate with the front partition 5 and the rear partition 6 to prevent the hot air flowing through the power module 111 from flowing backward, thereby preventing the occurrence of thermal short-circuiting of the air.

In an embodiment, the first and second air inlets that are communicated with each other are air inlet shutters 13, the first and second air outlets that are communicated with each other are air outlet shutters 14, and the air inlet shutters 13 and the air outlet shutters 14 are disposed opposite to each other.

Specifically, in the present embodiment, the air inlet louver 13 and the air outlet louver 14 may be designed as other types of air inlet and outlet in other cases, and are not limited herein. The air inlet louver 13 and the air outlet louver 14 are oppositely arranged, so that a better direct-exhaust heat dissipation effect for the power module 111 can be ensured.

As shown in fig. 1 and 3, the first fan 4 is located in an area enclosed by the L-shaped top partition 7 and the housing of the chassis 1, and the top end of the air inlet louver 13 extends to the area where the first fan 4 is located. The second fan 3 is arranged on the top of the air outlet shutter 14.

As shown in fig. 1 and 2, the first fan 4 is installed on the first partition board 2 and located in an area enclosed by the L-shaped top partition board 7 and the housing of the chassis 1, that is, the first fan 4 is independently arranged relative to the power module chamber 11, so as to ensure that the first fan 4 does not draw high-temperature air in the power module chamber 11 into the device chamber 12; the top end of the air inlet shutter 13 extends to the area where the first fan 4 is located, so that the first fan 4 can extract external low-temperature air into the device chamber 12 through the extended air inlet shutter 13, and a channel for communicating the first fan 4 with the external low-temperature air is provided.

Specifically, in this embodiment, the second fan 3 is disposed on the top of the air outlet louver 14, and can utilize the chimney effect of the gradually rising hot air to discharge the hot air inside the chassis 1 to the maximum extent, thereby ensuring good heat dissipation effect and heat dissipation efficiency.

In an embodiment, a module fan (not shown) for drawing cold air is disposed at an end of the power module 111 close to the air inlet shutter 13, and a module vent (not shown) for flowing out hot air is reserved at an end of the power module 111 close to the air outlet shutter 14.

Specifically, the module fan on the power module 111 is used as the driving force for the wind direction flowing between the air inlet louver 13 and the air outlet louver 14, and the module fan extracts the low-temperature air outside the air inlet louver 13, enters the power module 111, and is discharged from the module vent of the power module 111, so as to form a main heat dissipation air duct with direct-discharge heat dissipation. The main heat dissipation air duct has no other fans, so that the size of the product can be reduced, the whole volume and the occupied area of the product can be reduced, the product cost and the station building cost can be reduced to a certain degree, and the product competitiveness can be improved.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a fill electric pile cooling system for to filling electric pile quick-witted incasement portion and dispelling the heat, its characterized in that, including vertically set up in the first baffle of machine incasement chamber, first baffle will machine incasement chamber separates the power module cavity that is used for placing power module and is used for placing the device cavity of electric device, fill electric pile cooling system and still include:

2. The charging pile heat dissipation system of claim 1, further comprising a second auxiliary heat dissipation air duct, wherein the second auxiliary heat dissipation air duct comprises a second fan and a second air outlet, the second fan is disposed on a side where the first air outlet is located, and the second fan extracts heat inside the case and discharges the heat through the second air outlet.

3. The charging pile heat dissipation system of claim 2, wherein a second vent is formed in the top of the power module cavity, and air generated by neutralizing and dissipating heat of the power module cavity in the first auxiliary heat dissipation air duct passes through the second vent and is exhausted through the second air outlet.

4. The charging pile heat dissipation system of claim 2, wherein a plurality of second partition plates are disposed around the power module chamber to guide cold air entering from the first air inlet to flow through the power module, and to guide hot air after heat dissipation of the power module to exit through the first air outlet.

5. The charging pile heat dissipation system of claim 4, wherein the plurality of second partitions include a front partition disposed on a side of the power module chamber adjacent to the first air inlet and a rear partition disposed on a side of the power module chamber adjacent to the first air outlet.

6. The charging pile heat dissipation system of claim 5, wherein an L-shaped top partition is disposed between the first partition and a rear housing of the chassis, the L-shaped top partition being located above the power module cavity for cooperating with the front partition and the rear partition to prevent backflow of hot air through the power module.

7. The charging pile cooling system according to any one of claims 2 to 6, wherein the first air inlet is communicated with the second air inlet, and the first air outlet is communicated with the second air outlet.

8. The charging pile cooling system of claim 7, wherein the first air inlet and the second air inlet that are in communication with each other are air inlet shutters, the first air outlet and the second air outlet that are in communication with each other are air outlet shutters, and the air inlet shutters and the air outlet shutters are arranged opposite to each other.

9. The charging pile heat dissipation system of claim 8, wherein an L-shaped top partition is disposed between the first partition and a rear housing of the chassis; the first fan is located in an area enclosed by the L-shaped top partition plate and the shell of the case, the top end of the air inlet shutter extends to the area where the first fan is located, and the second fan is arranged at the top of the air outlet shutter.

10. The charging pile cooling system according to any one of claims 8 or 9, wherein a module fan for drawing cold air is disposed at one end of the power module close to the air inlet shutter, and a module vent for flowing out hot air is reserved at one end of the power module close to the air outlet shutter.