Charging device with external cooling pipeline cleaning device

Abstract

The utility model belongs to the field of charging devices, and particularly relates to a charging device with an external cooling pipeline cleaning device. The charging device with the external cooling pipeline cleaning device comprises a charging device and a liquid cooling device, the liquid cooling device comprises a liquid cooling assembly and a first pipeline and a second pipeline which are connected with the liquid cooling assembly, and the charging device is characterized in that when the charging device works, the first pipeline and the second pipeline are connected with a heat exchanger of a vehicle; the first pipeline is configured to provide cooling liquid for a vehicle, the second pipeline is configured to flow the cooling liquid back into the liquid cooling assembly, the first pipeline is provided with a first one-way valve, the second pipeline is provided with a second one-way valve, and the air inlet pipeline is connected with the first pipeline and is connected with a high-pressure air source. According to the utility model, the intersection of the cooling liquid and the damage of freezing of the cooling liquid are avoided, so that the safety of the vehicle is ensured.

Description

Technical Field

[0001] The utility model belongs to the field of charging devices, and particularly relates to a charging device with an external cooling pipeline cleaning device. Background Art

[0002] In order to improve the charging efficiency of electric vehicles, the company has designed a liquid / electricity combined supply charging device, including a liquid cooling device, and the liquid cooling device provides a coolant circulation for the vehicle.

[0003] During the operation of the liquid cooling device, the coolant will remain in the coolant circulation pipeline of the vehicle. In actual use, the coolants of different devices may be different. If the coolant circulation pipeline is not cleaned, there may be a cross of coolants. Moreover, the freezing points of coolants in different latitude regions are different. If the coolant in the low-latitude region is carried by the vehicle to the high-latitude region, it may cause freezing hazards and may affect the use of the vehicle. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the utility model designs a charging device with an external cooling pipeline cleaning device.

[0005] The technical solution of the utility model is as follows:

[0006] A charging device with an external cooling pipeline cleaning device, which includes a charging device and a liquid cooling device. The liquid cooling device includes a liquid cooling component, a first pipeline and a second pipeline connected to the liquid cooling component. The characteristics are that when the charging device works, the first pipeline and the second pipeline are connected to the heat exchanger of the vehicle. The first pipeline is configured to provide coolant to the vehicle, and the second pipeline is configured to return the coolant to the liquid cooling component. A first one-way valve is provided on the first pipeline, and a second one-way valve is provided on the second pipeline. It also includes an intake pipeline connected to the first pipeline, and the intake pipeline is connected to a high-pressure gas source.

[0007] Further, a third one-way valve is provided on the intake pipeline.

[0008] Further, the high-pressure gas source is an air compressor gas source or a high-pressure blower gas source.

[0009] Further, the liquid cooling component includes a plate heat exchanger. The primary side of the plate heat exchanger is connected with a compression refrigeration unit, and the secondary side of the plate heat exchanger is connected with a coolant circulation unit. One end of the first pipeline is connected to the outlet of the secondary side of the plate heat exchanger, and one end of the second pipeline is connected to the coolant circulation unit.

[0010] Further, the compression refrigeration unit includes a compressor. One end of the compressor is connected to an interface on the primary side of the plate heat exchanger, and the other end of the compressor is connected to a condenser through a pipeline. The condenser is connected to another interface on the primary side of the plate heat exchanger through a pipeline. An expansion valve is also provided on the pipeline connecting the condenser and the plate heat exchanger.

[0011] Further, it also includes a cooling fan, which is used to accelerate the air flow around the condenser.

[0012] Further, the coolant circulation unit includes a storage tank. The storage tank is connected to an interface on the secondary side of the plate heat exchanger through a pipeline. A circulation pump is provided on the pipeline connecting the storage tank and the secondary side of the plate heat exchanger. The circulation pump is configured to extract the coolant from the storage tank into the plate heat exchanger. The other interface on the secondary side of the plate heat exchanger is connected to the first pipeline. A return port is also provided on the storage tank, and the second pipeline is connected to the return port.

[0013] In summary, the present utility model has the following beneficial effects:

[0014] In the present utility model, the high-pressure gas source enters the first pipeline and then enters the heat exchanger of the vehicle, and the residual coolant in the vehicle heat exchanger is discharged from the second pipeline, so as to ensure that the coolant does not remain in the vehicle heat exchanger, the first pipeline and the second pipeline, thereby avoiding the cross of the coolant and the possible harm of the coolant freezing, and thus ensuring the safety of the vehicle. Description of the Drawings

[0015] Figure 1 and Figure 2 is the system composition diagram of the present utility model;

[0016] In the figure, 1 is the charging device,

[0017] 2 is the liquid cooling device, 20 is the liquid cooling component, 21 is the first pipeline, 22 is the second pipeline, 210 is the first one-way valve, 220 is the second one-way valve, 24 is the intake pipeline, 25 is the high-pressure gas source, 240 is the third one-way valve,

[0018] 201 is the plate heat exchanger, 202 is the compression refrigeration unit, 203 is the coolant circulation unit,

[0019] 2021 is the compressor, 2022 is the condenser, 2023 is the expansion valve, 2024 is the cooling fan,

[0020] 2011 is the storage tank, 2012 is the circulation pump, 2013 is the return port. Detailed Embodiments

[0021] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and be able to implement it, but the embodiments cited are not intended to limit the present invention.

[0022] It should be noted that when an element is referred to as being "disposed on" or "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is referred to as being "fixed to" another element or "fixedly connected" to another element, the connection between them can be a detachable fixing method or a non-detachable fixing method. When an element is considered to be "connected" or "rotationally connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right", "up", "down" and similar expressions are only for the purpose of illustration and do not represent the only implementation.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0024] In the present invention, the terms such as "first", "second", "third", etc. do not represent specific quantities and sequences, but are only used for name distinction.

[0025] See Figure 1 and Figure 2 As shown, a charging device with an external cooling pipeline cleaning device includes a charging device 1 and a liquid cooling device 2. The liquid cooling device 2 includes a liquid cooling component 20 and a first pipeline 21 and a second pipeline 22 connected to the liquid cooling component. When the charging device works, the first pipeline 21 and the second pipeline 22 are connected to the vehicle's heat exchanger 3. The first pipeline 21 is configured to supply coolant to the vehicle, and the second pipeline 22 is configured to return the coolant to the liquid cooling component. A first one-way valve 210 is provided on the first pipeline 21, and a second one-way valve 220 is provided on the second pipeline 22. It further includes an intake pipeline 24 connected to the first pipeline, and the intake pipeline 24 is connected to a high-pressure gas source 25.

[0026] The present utility model designs a charging device with an external cooling pipeline cleaning device, which avoids the residue of coolant in the vehicle heat exchanger, the first pipeline and the second pipeline, thus avoiding the possible problem of cross-mixing of coolant. At the same time, it also avoids the problem that the coolant may freeze in the vehicle heat exchanger when the vehicle is used across latitudes, ensuring the safety of the vehicle.

[0027] The first check valve and the second check valve of the present utility model are unidirectional conduction. The coolant in the first pipeline can only flow from the liquid cooling component to the heat exchanger of the vehicle, and the coolant in the second pipeline can only flow from the heat exchanger of the vehicle to the liquid cooling component. The high-pressure gas source enters the first pipeline from the intake pipeline, and the high-pressure gas drives the residual coolant in the first pipeline to flow towards the heat exchanger of the vehicle and finally returns to the liquid cooling component through the second check valve, thereby realizing that there is no residual coolant in the first pipeline, the second pipeline and the heat exchanger of the vehicle.

[0028] A third check valve 240 is provided on the intake pipeline 24, and the provided third check valve plays a blocking role to prevent the coolant from flowing into the intake pipeline.

[0029] In this embodiment, the high-pressure gas source 25 is an air compressor gas source or a high-pressure blower gas source. The high-pressure gas source has a certain pressure. When the high-pressure gas source is allowed to enter the intake pipeline, it has a relatively fast speed and can quickly purge the residual coolant in the pipeline, improving the efficiency.

[0030] The liquid cooling component 20 includes a plate heat exchanger 201. A compression refrigeration unit 202 is connected to the primary side of the plate heat exchanger 201, and a coolant circulation unit 203 is connected to the secondary side of the plate heat exchanger 201. One end of the first pipeline 21 is connected to the outlet of the secondary side of the plate heat exchanger 201, and one end of the second pipeline 22 is connected to the coolant circulation unit 203. The liquid cooling component uses a plate heat exchanger as an intermediate heat exchange unit. A compression refrigeration unit is connected to the primary side of the plate heat exchanger, and a coolant circulation unit is connected to the secondary side. The coolant circulation unit is used to drive the coolant to flow in the heat exchanger of the vehicle to absorb the heat generated by the vehicle power battery, and the compression refrigeration unit is used to refrigerate the coolant to ensure the temperature of the coolant so that it can better exchange the heat generated by the vehicle power battery.

[0031] More specifically, the compression refrigeration unit 202 includes a compressor 2021. One end of the compressor 2021 is connected to an interface on the primary side of the plate heat exchanger, and the other end of the compressor 2021 is connected to a condenser 2022 through a pipeline. The condenser 2022 is connected to the other interface on the primary side of the plate heat exchanger through a pipeline. An expansion valve 2023 is also provided on the connecting pipeline between the condenser 2022 and the plate heat exchanger. The refrigerant on the primary side of the plate heat exchanger is compressed and refrigerated by the compression refrigeration unit to reduce the temperature of the refrigerant, and can better absorb the heat generated by the power battery when passing through the plate heat exchanger.

[0032] It also includes a cooling fan 2024, which is used to accelerate the air flow around the condenser. The cooling fan can improve the cooling effect of the condenser, meet more stringent heat dissipation requirements, and has better use effects.

[0033] Further, the coolant circulation unit 201 includes a storage tank 2011. The storage tank 2011 is connected to an interface on the secondary side of the plate heat exchanger through a pipeline. A circulation pump 2012 is provided on the pipeline connecting the storage tank 2011 and the secondary side of the plate heat exchanger. The circulation pump 2012 is configured to extract the coolant from the storage tank into the plate heat exchanger. Another interface on the secondary side of the plate heat exchanger is connected to the first pipeline 21. A return port 2013 is also provided on the storage tank 2011. The second pipeline is connected to the return port. The coolant circulation unit realizes the circulation of the coolant among the first pipeline, the second pipeline and the vehicle's heat exchanger through the circulation pump, and takes away the heat generated by the vehicle's power battery during charging, which can better control the temperature of the power battery and thus obtain better charging efficiency.

[0034] In summary, the present utility model has the following beneficial effects:

[0035] In the present utility model, high-pressure air source enters the first pipeline and then into the vehicle's heat exchanger, and discharges the residual coolant in the vehicle's heat exchanger from the second pipeline, so as to ensure that the coolant does not remain in the vehicle's heat exchanger, the first pipeline and the second pipeline, thereby avoiding the cross of the coolant and the possible harm of the coolant freezing, and thus ensuring the safety of the vehicle.

[0036] Based on the described embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present invention.

Claims

1. A charging device with an external cooling pipeline cleaning device, which comprises a charging device and a liquid cooling device. The liquid cooling device includes a liquid cooling component, a first pipeline and a second pipeline connected to the liquid cooling component, and is characterized in that: When the charging device is operating, the first pipeline and the second pipeline are connected to the heat exchanger of the vehicle. The first pipeline is configured to supply coolant to the vehicle, and the second pipeline is configured to return the coolant to the liquid-liquid cooling assembly. A first one-way valve is provided on the first pipeline, and a second one-way valve is provided on the second pipeline. An intake pipeline connected to the first pipeline is also included, and the intake pipeline is connected to a high-pressure gas source.

2. The charging device with an external cooling pipeline cleaning device according to claim 1, characterized in that: A third one-way valve is provided on the intake pipeline.

3. The charging device with an external cooling pipeline cleaning device according to claim 1, characterized in that: The high-pressure gas source is an air compressor gas source or a high-pressure blower gas source.

4. The charging device with an external cooling pipeline cleaning device according to claim 1, characterized in that: The liquid cooling assembly includes a plate heat exchanger. The primary side of the plate heat exchanger is connected to a compression refrigeration unit, and the secondary side of the plate heat exchanger is connected to a coolant circulation unit. One end of the first pipeline is connected to the outlet of the secondary side of the plate heat exchanger, and one end of the second pipeline is connected to the coolant circulation unit.

5. The charging device with an external cooling pipe cleaning device according to claim 4, characterized in that: The compression refrigeration unit includes a compressor. One end of the compressor is connected to an interface on the primary side of the plate heat exchanger, and the other end of the compressor is connected to a condenser through a pipeline. The condenser is connected to the other interface on the primary side of the plate heat exchanger through a pipeline. An expansion valve is also provided on the pipeline connecting the condenser and the plate heat exchanger.

6. The charging device with an external cooling pipeline cleaning device according to claim 5, characterized in that: A cooling fan is also included, and the cooling fan is used to accelerate the air flow around the condenser.

7. The charging device with an external cooling pipe cleaning device according to claim 4, characterized in that: The coolant circulation unit includes a storage tank. The storage tank is connected to an interface on the secondary side of the plate heat exchanger through a pipeline. A circulation pump is provided on the pipeline connecting the storage tank and the secondary side of the plate heat exchanger. The circulation pump is configured to extract coolant from the storage tank and enter the plate heat exchanger. The other interface on the secondary side of the plate heat exchanger is connected to the first pipeline. A return port is also provided on the storage tank, and the second pipeline is connected to the return port.

Images