CN214523401U

CN214523401U - Charging pile and power module heat dissipation system thereof

Info

Publication number: CN214523401U
Application number: CN202120442317.6U
Authority: CN
Inventors: 吴迎丰; 靳培峰
Original assignee: Sungrow Power Supply Co Ltd
Current assignee: Sungrow Power Supply Co Ltd
Priority date: 2021-02-26
Filing date: 2021-02-26
Publication date: 2021-10-29
Anticipated expiration: 2031-02-26

Abstract

The utility model discloses a fill electric pile and power module cooling system thereof, this power module cooling system who fills electric pile includes: a power module and a coolant reservoir; wherein, the power module includes power module main part and cooling chamber, and the coolant liquid strorage device can provide the coolant liquid with the cooling chamber in order to cool off the power module main part. According to the power module heat dissipation system of the charging pile, the cooling cavity is formed in the power module, and the cooling liquid storage device which provides cooling liquid for the cooling cavity is used for cooling the power module main body by using the cooling liquid in the cooling cavity, so that the whole power module is cooled; meanwhile, the power module main body is cooled by the cooling liquid, so that the cooling effect is improved.

Description

Charging pile and power module heat dissipation system thereof

Technical Field

The utility model relates to a fill electric pile technical field, more specifically say, relate to a fill electric pile and power module cooling system thereof.

Background

In order to improve the charging efficiency of the electric automobile, the power grade of the charging pile is increased from tens of kilowatts in the early stage to one hundred kilowatts in the market at present. Therefore, the power level requirements of the power modules in the charging pile are also increasing.

In order to ensure the normal operation of the power module, the power module needs to be cooled. Specifically, the power module generally adopts air-cooled heat dissipation, that is, a fan is used to accelerate air flow to realize air-cooled heat dissipation. For a high-power module, the requirement on heat dissipation is high, namely the requirement on the rotating speed of a fan is high. However, a fan with a high rotational speed generates a large noise, which affects the environment.

In addition, the heat dissipated by air cooling cannot be recovered, resulting in heat waste.

In summary, how to dissipate heat of a power module of a charging pile to reduce noise and reduce influence on the environment is a problem to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a fill power module cooling system of electric pile to noise reduction reduces the influence to the environment. Another object of the present invention is to provide a charging pile with the above power module heat dissipation system.

In order to achieve the above object, the utility model provides a following technical scheme:

a power module heat dissipation system of a charging pile, comprising: a power module and a coolant reservoir; wherein the power module includes a power module main body and a cooling chamber, and the cooling liquid storage device is capable of supplying a cooling liquid to the cooling chamber to cool the power module main body.

Preferably, the cooling liquid storage device comprises a first storage device and a second storage device, the cooling cavity is provided with a cooling liquid inlet and a cooling liquid outlet, the cooling liquid inlet is communicated with the first storage device through an input pipeline, and the cooling liquid outlet is communicated with the second storage device through an output pipeline.

Preferably, the first storage means and the second storage means are in communication.

Preferably, the power module heat dissipation system of the charging pile further comprises a heat exchange device, and the heat exchange device can cool the cooling liquid in the second storage device and/or the first storage device.

Preferably, the heat exchange device comprises a heat exchange cavity capable of storing a heat exchange medium;

if the heat exchange device can cool the cooling liquid in the second storage device, the shell of the second storage device is a heat-conducting shell, and the second storage device is positioned in the heat exchange cavity;

if the heat exchange device can cool the cooling liquid in the first storage device, the shell of the first storage device is a heat-conducting shell, and the first storage device is located in the heat exchange cavity.

Preferably, the heat exchange cavity is provided with a heat exchange medium inlet for the heat exchange medium to enter and a heat exchange medium outlet for the heat exchange medium to discharge.

Preferably, the first storage device and the second storage device are both storage tubes, and the storage tubes are metal tubes.

Preferably, the heat exchange device, the first storage device and the second storage device are all used for being arranged underground.

Preferably, the first storage device and the second storage device are the same storage device.

Preferably, the cooling liquid inlet is arranged at the bottom of the power module, the cooling liquid outlet is arranged at the top of the power module, and the input pipeline is connected with the delivery pump in series.

Preferably, the input pipeline, the output pipeline, the communication position of the input pipeline and the cooling liquid inlet, and the communication position of the output pipeline and the cooling liquid outlet are all provided with waterproof structures, and the input pipeline and the output pipeline are hoses.

Preferably, the power module heat dissipation system of the charging pile further comprises a delivery pump, and the delivery pump enables the cooling liquid in the cooling liquid storage device to flow through the cooling cavity.

Preferably, the coolant reservoir is for placement underground.

Preferably, the power module body is located inside the cooling cavity.

Based on the power module cooling system that fills electric pile that the aforesaid provided, the utility model also provides a fill electric pile, should fill electric pile and include above-mentioned arbitrary power module cooling system.

The utility model provides a power module cooling system of charging pile, through set up the cooling chamber on power module to and provide the coolant liquid strorage device of coolant liquid to the cooling chamber, realized utilizing the coolant liquid in the cooling chamber to cool off power module main part, thereby realize dispelling the heat to whole power module, compared with the existing adoption fan heat dissipation, effectively reduced the noise, thereby reduced the influence to the environment; meanwhile, the power module main body is cooled by the cooling liquid, so that the cooling effect is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a power module heat dissipation system of a charging pile according to an embodiment of the present invention;

fig. 2 is another schematic structural diagram of a power module heat dissipation system of a charging pile according to an embodiment of the present invention;

fig. 3 is another schematic structural diagram of a power module heat dissipation system of a charging pile according to an embodiment of the present invention;

fig. 4 is another schematic structural diagram of a power module heat dissipation system of a charging pile according to an embodiment of the present invention;

fig. 5 is another schematic structural diagram of a power module heat dissipation system of a charging pile according to an embodiment of the present invention;

fig. 6 is another schematic structural diagram of a power module heat dissipation system of a charging pile according to an embodiment of the present invention;

fig. 7 is another schematic structural diagram of a power module heat dissipation system of a charging pile provided in an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 to 7, the power module heat dissipation system of the charging pile provided by the embodiment of the present invention includes a power module 11 and a cooling liquid storage device 15, wherein the power module 11 includes a power module main body and a cooling cavity 111; the cooling liquid storage device 15 can supply the cooling liquid to the cooling chamber 111 to cool the power module main body.

The type of the cooling liquid is selected according to actual needs, and this embodiment does not limit this.

The embodiment of the utility model provides a power module cooling system of charging pile, through set up cooling chamber 111 on power module 11, utilize coolant liquid strorage device 15 to provide the coolant liquid to cooling chamber 111, realized utilizing the coolant liquid to cool off power module main part in cooling chamber 111, thereby realize dispelling the heat to whole power module 11, compare with current adoption fan heat dissipation, effectively reduced the noise, thereby reduced the influence to the environment; meanwhile, the power module main body is cooled by the cooling liquid, so that the cooling effect is improved.

Among the above-mentioned power module cooling system who fills electric pile, the cooling liquid can get into cooling chamber 111, and cooling chamber 111 is provided with the cooling liquid import promptly. The cooling fluid may or may not flow out of the cooling cavity 111. In order to increase the cooling effect, it is preferable that the cooling liquid can flow out of the cooling chamber 111, that is, the cooling chamber 111 is provided with a cooling liquid outlet. At this time, the cooling cavity 111 is sealed except for the cooling fluid inlet and the cooling fluid outlet to ensure that the cooling fluid only enters the cooling cavity 111 from the cooling fluid inlet and the cooling fluid only exits the cooling cavity 111 from the cooling fluid outlet.

If the cooling liquid can flow out of the cooling chamber 111, the cooling liquid storage device 15 can receive the cooling liquid discharged from the cooling chamber 111. Specifically, as shown in fig. 2 to 6, the above-mentioned cooling liquid storage device 15 includes a first storage device 151 and a second storage device 152, the cooling chamber 111 is provided with a cooling liquid inlet and a cooling liquid outlet, the cooling liquid inlet is communicated with the first storage device 151 through the input pipe 13, and the cooling liquid outlet is communicated with the second storage device 152 through the output pipe 14. At this time, the first storage unit 151 supplies the cooling liquid to the cooling chamber 111, and the second storage unit 152 stores the cooling liquid discharged from the cooling chamber 111.

In order to reduce the amount of coolant used, it is preferable to circulate the coolant. Specifically, the first storage unit 151 and the second storage unit 152 communicate.

In order to improve the cooling effect, it is necessary to ensure that the temperature of the cooling liquid is within a set range. In order to ensure the temperature of the cooling liquid, the power module heat dissipation system of the charging pile further includes a heat exchanging device 16, and the heat exchanging device 16 can cool the cooling liquid in the second storage device 152 and/or the first storage device 151.

In order to enhance the cooling effect, the heat exchanger 16 is preferably capable of cooling the coolant in the second storage unit 152 and the first storage unit 151, as shown in fig. 1, 4, and 7.

In the power module heat dissipation system of the charging pile, the cooling liquid is put into the cooling cavity 111, the cooling liquid discharged from the cooling cavity 111 is sent into the second storage device 152 and the first storage device 151, and the cooling liquid in the second storage device 152 and the first storage device 151 is cooled by the heat exchange device 16 so as to reduce the temperature of the cooling liquid; the cooled coolant is then introduced into the cooling chamber 111 to cool the power module main body.

In practical applications, the heat exchanging device 16 may be selected to cool the cooling liquid in the second storage device 152 only, as shown in fig. 2 and 5; alternatively, the heat exchanger 16 may only cool the coolant in the first storage unit 151, as shown in fig. 3 and 6, but is not limited to the above embodiment.

The specific type and structure of the heat exchange device 16 are selected according to actual needs. For cooling purposes, the heat exchange device 16 preferably includes a heat exchange chamber 161 capable of storing a heat exchange medium. At the moment, the heat of the cooling liquid can be collected through the heat exchange medium, and the waste of the heat is reduced.

The heat exchange medium may be water, or may be another heat exchange medium with a larger specific heat capacity, which is not limited in this embodiment.

After the heat exchanging device 16 is adopted, if the heat exchanging device 16 can cool the cooling liquid in the second storage device 152, the shell of the second storage device 152 is a heat conducting shell, and the second storage device 152 is located in the heat exchanging cavity 161; if the heat exchanging device 16 can cool the cooling liquid in the first storage device 151, the housing of the first storage device 151 is a heat conducting housing, and the first storage device 151 is located in the heat exchanging cavity 161.

In order to improve the heat exchange effect of the heat exchange device 16, the heat exchange cavity 161 has a heat exchange medium inlet for the heat exchange medium to enter and a heat exchange medium outlet for the heat exchange medium to exit. Therefore, the heat of the cooling liquid collected by the heat exchange medium is convenient to recycle.

After the heat exchanger 16 is used, in order to improve the heat exchange efficiency between the heat exchanger 16 and the first storage unit 151 and the second storage unit 152, it is preferable that the first storage unit 151 and the second storage unit 152 are storage tubes. Further, the storage tube is a coil tube.

The outer wall of the storage tube may further be provided with a heat dissipation structure, such as a heat dissipation fin, which is not limited in this embodiment.

In practical application, the storage tube may be in other shapes or distributed in other manners, for example, the storage tube is a spiral tube; the first storage device 151 and the second storage device 152 may be other storage devices, such as storage boxes, and are not limited to the above embodiments.

In order to improve the heat exchange efficiency, the material of the storage tube preferably has a high thermal conductivity. Specifically, the storage tube is a metal tube. Of course, the above-mentioned storage tube can be selected to be made of other materials as long as the heat exchange effect and the heat exchange efficiency are ensured, and this embodiment is not limited to this.

In the power module heat dissipation system of the charging pile, the specific positions of the heat exchange device 16, the first storage device 151 and the second storage device 152 are selected according to actual conditions. In order to reduce the floor space, it is preferable that the heat exchanging device 16, the first storage device 151, and the second storage device 152 are all disposed underground, that is, the heat exchanging device 16, the first storage device 151, and the second storage device 152 are all located below the ground 18, as shown in fig. 1 to 4.

In practical application, only the heat exchanging device 16 and the first storage device 151 may be disposed underground, and the second storage device 152 may be disposed above ground, at which time, the heat exchanging device 16 can cool the cooling liquid in the first storage device 151, as shown in fig. 6; alternatively, only the heat exchanging device 16 and the second storage device 152 may be disposed underground and the first storage device 151 may be disposed above ground, and at this time, the heat exchanging device 16 can cool the coolant in the second storage device 152, as shown in fig. 5.

When the heat exchanger 16 is disposed underground, the heat exchanging chamber 161 may be formed by an underground groove and a cover plate covering the groove, or may be formed by a housing of the heat exchanger 16, which is not limited in this embodiment.

When the power module heat dissipation system of the charging pile does not include the heat exchange device 16, the cooling liquid storage device 15 is preferably arranged underground, so that the occupied area is reduced.

In order to reduce the number of devices and simplify the structure, it is preferable that the first storage unit 151 and the second storage unit 152 be the same storage unit, as shown in fig. 1. At this time, the heat exchanging device 16 can cool the coolant in the first storage unit 151 and the second storage unit 152.

Of course, the first storage unit 151 and the second storage unit 152 may be two separate units, and are not limited to the above embodiment.

In practical applications, the above-mentioned cooling liquid storage device 15 and the heat exchanging device 16 may be arranged above the ground 18 in case of sufficient space above the ground, as shown in fig. 7, but are not limited to the above-mentioned embodiment.

Among the above-mentioned power module cooling system who fills electric pile, to the concrete position of coolant liquid import and coolant liquid export, select according to actual need. In order to enhance the cooling effect, it is preferable that the cooling liquid inlet is provided at the bottom of the power module 11 and the cooling liquid outlet is provided at the top of the power module 11. Therefore, the cooling liquid flows from bottom to top, the cooling time is prolonged, and the cooling effect is improved.

It can be understood that the bottom of the power module 11 refers to the bottom of the power module 11 after the power module 11 is installed on the charging pile; the top of the power module 11 refers to the top of the power module 11 after the power module 11 is installed on the charging pile.

Preferably, the coolant inlet is located at the middle of the bottom surface of the power module 11, and the coolant outlet is located at the edge of the top surface of the power module 11. In practical applications, the cooling liquid inlet and the cooling liquid outlet may also be disposed at other positions of the power module 11, which is not limited in this embodiment.

In the power module heat dissipation system for a charging pile, in order to facilitate the coolant to flow into the cooling cavity 111, the power module heat dissipation system for a charging pile further includes a delivery pump 12, and the delivery pump 12 enables the coolant in the coolant storage device 15 to flow through the cooling cavity 111. The particular location of the transfer pump 12 will need to be selected according to the particular configuration of the particular coolant reservoir 15.

In the power module heat dissipation system of the charging pile, the delivery rate of the delivery pump 12 is controlled according to the heat generated by the power module 11.

Specifically, the input pipe 13 is connected in series with a delivery pump 12. In this way, the cooling liquid is easily fed into the cooling chamber 111. Of course, the delivery pump 12 may be connected in series to the output pipe 14, or the delivery pump 12 may be connected in series to both the input pipe 13 and the output pipe 14, which is not limited to the above embodiment.

The type of the above-mentioned delivery pump 12 is selected according to actual needs, and this embodiment is not limited to this.

In order to improve the protection performance, the input pipeline 13, the output pipeline 14, the communication part of the input pipeline 13 and the cooling liquid inlet, and the communication part of the output pipeline 14 and the cooling liquid outlet are all provided with waterproof structures. The specific type of the waterproof structure is selected according to actual needs, and this embodiment does not limit this.

For convenience of installation, the input pipe 13 and the output pipe 14 are preferably hoses. The material of the hose is selected according to actual needs, and this embodiment does not limit this.

In the power module heat dissipation system of the charging pile, the power module main body may be located inside the cooling cavity 111, or may be located outside the cooling cavity 111. In order to secure the performance of the power module body, it is preferable that the power module body is located outside the cooling chamber 111. In this case, the cooling liquid is less required, but the cooling effect is poor.

To enhance the cooling effect, it is preferable that the power module main body is located inside the cooling chamber 111. At this time, the cooling liquid does not chemically react with the electronic device of the power module main body, for example, the cooling liquid is a fluorinated liquid, and the type of the cooling liquid is not limited in this embodiment.

It is understood that, in the above structure, the power module 11 has a module housing, the module housing forms the cooling cavity 111, and the module housing is sealed at other positions except for the cooling liquid inlet and the cooling liquid outlet, for example, the module housing leads out a power input part, a power output part, a communication part, and the like, and the power input part, the power output part, and the communication part are sealed at the lead-out position of the module housing.

The above-mentioned seal can be sealed through the sealing member, also can realize sealed through other structures, this embodiment does not limit this.

In order to improve the protection performance, the module shell is provided with a waterproof structure at other positions except for the cooling liquid inlet and the cooling liquid outlet. The specific structure of the waterproof structure is selected according to actual needs, and this embodiment does not limit this.

Based on the power module cooling system of the charging pile provided by the embodiment, the embodiment also provides the charging pile, and the charging pile comprises the power module cooling system of the charging pile provided by the embodiment.

The charging pile comprises a cabinet 17, the power module 11 is located in the cabinet 17, and the cooling liquid storage device 15 can be located inside the cabinet 17 or outside the cabinet 17. In order to reduce the volume of the cabinet 17, it is preferable that the above-described coolant storage device 15 is located outside the cabinet 17. Further, the above-mentioned coolant storage means 15 is located underground.

When the power module heat dissipation system of the charging pile comprises the input pipeline 13 and the output pipeline 14, the input pipeline 13 and the output pipeline 14 are inserted into the cabinet 17 from the outside of the cabinet 17, so that the input pipeline 13 is communicated with the cooling liquid inlet, and the output pipeline 14 is communicated with the cooling liquid outlet.

Because the power module cooling system of the electric pile that fills that above-mentioned embodiment provided has above-mentioned technological effect, above-mentioned electric pile that fills includes the power module cooling system of above-mentioned electric pile that fills, then the above-mentioned electric pile that fills also has corresponding technological effect, and this text is no longer repeated.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A power module cooling system of a charging pile, comprising: a power module (11) and a coolant reservoir (15); wherein the power module (11) comprises a power module body and a cooling cavity (111), the cooling liquid storage device (15) being capable of supplying cooling liquid to the cooling cavity (111) to cool the power module body.

2. The power module heat dissipation system according to claim 1, wherein the coolant storage device (15) includes a first storage device (151) and a second storage device (152), the cooling cavity (111) is provided with a coolant inlet and a coolant outlet, the coolant inlet is communicated with the first storage device (151) through an input duct (13), and the coolant outlet is communicated with the second storage device (152) through an output duct (14).

3. The power module heat dissipation system of claim 2, wherein the first storage device (151) and the second storage device (152) are in communication.

4. The power module heat dissipation system of claim 3, further comprising a heat exchange device (16), the heat exchange device (16) being capable of cooling the coolant within the second storage device (152) and/or the first storage device (151).

5. The power module heat dissipation system of claim 4, wherein the heat exchange device (16) includes a heat exchange cavity (161) capable of storing a heat exchange medium;

if the heat exchange device (16) can cool the cooling liquid in the second storage device (152), the shell of the second storage device (152) is a heat-conducting shell, and the second storage device (152) is positioned in the heat exchange cavity (161);

if the heat exchanging device (16) can cool the cooling liquid in the first storage device (151), the shell of the first storage device (151) is a heat conducting shell, and the first storage device (151) is located in the heat exchanging cavity (161).

6. The power module heat dissipation system of claim 5, wherein the heat exchange cavity (161) has a heat exchange medium inlet for the entry of a heat exchange medium and a heat exchange medium outlet for the exit of the heat exchange medium.

7. The power module heat dissipation system of claim 5, wherein the first storage device (151) and the second storage device (152) are storage tubes, and the storage tubes are metal tubes.

8. The power module heat dissipation system of claim 4, wherein the heat exchange device (16), the first storage device (151), and the second storage device (152) are all configured to be disposed underground.

9. The power module heat dissipation system of claim 3, wherein the first storage device (151) and the second storage device (152) are the same storage device.

10. The power module heat dissipation system of claim 2, wherein the coolant inlet is disposed at the bottom of the power module (11), the coolant outlet is disposed at the top of the power module (11), and the input pipe (13) is connected in series with a delivery pump (12).

11. The power module heat dissipation system of claim 2, wherein the input pipe (13), the output pipe (14), a communication between the input pipe (13) and the cooling liquid inlet, and a communication between the output pipe (14) and the cooling liquid outlet are provided with waterproof structures, and the input pipe (13) and the output pipe (14) are hoses.

12. The power module heat dissipation system according to claim 1, further comprising a delivery pump (12), the delivery pump (12) being capable of flowing the cooling liquid within the cooling liquid storage device (15) through the cooling cavity (111).

13. The power module heat dissipation system of claim 1, wherein the coolant reservoir (15) is configured to be disposed underground.

14. The power module heat dissipation system of any of claims 1-13, wherein the power module body is located inside the cooling cavity (111).

15. A charging pile comprising the power module heat dissipation system of any one of claims 1-14.