CN218316286U

CN218316286U - Cooling system of prepackage type electric automobile charging station

Info

Publication number: CN218316286U
Application number: CN202220278833.4U
Authority: CN
Inventors: 喻准; 陈岳飞; 李超; 陈虹
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-02-11
Filing date: 2022-02-11
Publication date: 2023-01-17
Anticipated expiration: 2032-02-11

Abstract

The utility model discloses a cooling system of a pre-installed electric vehicle charging station, belonging to the technical field of electric vehicle matching, wherein a liquid cooling hollow plate is arranged on the indoor side wall of the charging station; the liquid cooling hollow plate is filled with flowing cooling liquid; the liquid cooling hollow plate is connected with a water pump and a heat absorption end of the plate type heat exchanger through a first circulating pipeline; the heat dissipation end of the plate heat exchanger is connected with a liquid storage tank, a compressor, a condenser and an expansion valve through a second circulating pipeline; and heat absorbing strips are uniformly distributed on the outer wall of the liquid cooling hollow plate. The utility model discloses a mode that adopts the liquid cooling cools off prepackage type charging station, improves the inside cooling effect of charging station, prevents that charging station internal plant high temperature from improving charging station operating stability.

Description

Cooling system of prepackage type electric automobile charging station

Technical Field

The utility model belongs to the technical field of electric automobile is supporting, specifically be a cooling system of prepackage type electric automobile charging station.

Background

Electric automobile charging station and new forms of energy electric motor car in close contact with, along with the increase of new forms of energy electric automobile, electric automobile charging station is also the construction that accelerates. Wherein, prepackage type electric automobile charging station adopts the batch production prefabrication, and the assembly construction need not the civil engineering planning and reports for construction, need not to join in marriage the installation of electrical room and the on-the-spot cabinet body, and the field work volume that has significantly reduced has improved the quality and the efficiency of charging station construction.

Station is built to prepackage type electric automobile charging station includes: the system comprises a high-voltage cabinet, a transformer, a low-voltage power distribution cabinet, a charging cabinet, a control cabinet and a charging pile; the advantages are that: the integrated power transformation, distribution and charging functions are integrated, the integration is high, and the structure is compact; various charging power schemes can be configured according to the operation scale; intelligent management, remote monitoring and unattended operation; the construction is quick, and the installation is convenient; the construction period is short, the manpower is less, the factory prefabrication is realized, and the building can be quickly hoisted and put into operation after the infrastructure is finished; the planning adaptability is better, can move fast.

At present, prepackage type electric automobile charging station adopts the forced air cooling mode to dispel the heat mostly, because the inside heat of charging station is bigger, especially the cabinet that charges can produce a large amount of heats at the operation in-process, consequently adopt the forced air cooling mode will need a plurality of little fans to dispel the heat simultaneously, traditional forced air cooling mode is bulky, it is big to occupy the charging station inner space, lead to the charging station volume increase, large-scale fan noise is big simultaneously, long-term operation can lead to the life-span to shorten, and air-cooled cooling effect is poor, still need keep higher air volume with the external world, make the inside too much dust that gets into of charging station and reduce life easily.

SUMMERY OF THE UTILITY MODEL

To above problem, the utility model provides a cooling system of prepackage type electric automobile charging station, it cools off the prepackage type charging station through the mode that adopts the liquid cooling, improves the inside cooling effect of charging station, prevents that the charging station internal plant high temperature from, improves charging station operating stability.

In order to achieve the above object, the utility model adopts the following technical scheme: a cooling system of a pre-installed electric vehicle charging station is characterized in that a liquid cooling hollow plate is installed on the side wall in a charging station chamber; the liquid cooling hollow plate is filled with flowing cooling liquid; the liquid cooling hollow plate is connected with a water pump and a heat absorption end of the plate type heat exchanger through a first circulating pipeline; the heat dissipation end of the plate heat exchanger is connected with a liquid storage tank, a compressor, a condenser and an expansion valve through a second circulating pipeline; and heat absorbing strips are uniformly distributed on the outer wall of the liquid cooling hollow plate.

Compared with the prior art, the utility model has the advantages of:

the cooling effect on the charging station is accelerated by absorbing heat through the circulating flow of the cooling liquid on the inner wall of the charging station, the absorbed heat is transferred to the coolant through the plate heat exchanger, and the heat is dissipated by the coolant through the condenser; the liquid cooling is higher than the radiating efficiency of forced air cooling, can satisfy the heat dissipation demand of high-power charge-discharge, and the liquid cooling heat dissipation is more even simultaneously, and the difference in temperature is little, has very big help to reinforcing electric automobile charging station stability, promotion life-span.

As a further improvement of the above technical solution: and an electric heater and an expansion tank are also arranged on the circulating pipeline of the liquid cooling hollow plate.

The beneficial effect of the improvement is as follows: the electric heater can heat the cooling liquid, so that the cooling liquid is prevented from freezing to damage a pipeline in winter; the expansion tank can play a buffering effect after the volume of the cooling liquid after heat absorption is increased.

As a further improvement of the above technical solution: the liquid cooling hollow plate is internally and transversely provided with a partition plate which is used for distributing the inner cavities in an S shape at intervals.

The beneficial effect of the improvement is as follows: the S-shaped inner cavity can improve the flowing uniformity of the cooling liquid in the liquid cooling hollow plate and improve the heat absorption efficiency.

As a further improvement of the above technical solution: the heat absorbing strips are in a vertical state and are distributed on the liquid cooling hollow plate in a transverse array mode.

The beneficial effect of the improvement is as follows: the vertical distribution of heat absorption strip can improve the support intensity of liquid cooling hollow plate, can avoid the dust to fall on the heat absorption strip simultaneously again.

As a further improvement of the above technical solution: and a filter is also arranged on the circulating pipeline of the liquid cooling hollow plate.

The beneficial effect of the improvement is as follows: the filter can play the effect of filtering the coolant liquid, collects the impurity in the coolant liquid and filters.

As a further improvement of the technical scheme: the indoor outer wall of charging station is the double-layer wall, and it has the thermal insulation layer to fill in the intermediate layer chamber.

The beneficial effect of the improvement is as follows: after the double-layer wall is filled with the heat-insulating layer, the influence of external high temperature on the charging station can be avoided, and the refrigeration energy consumption is reduced.

Drawings

FIG. 1 is a schematic diagram of the system architecture;

FIG. 2 is a schematic cross-sectional view of the inner wall of the charging station;

FIG. 3 is a schematic diagram showing the structural distribution of the inner cavity of the liquid-cooled hollow plate;

FIG. 4 is a schematic front view of a liquid-cooled cavity plate.

In the figure: 1. an outer wall; 2. a heat insulation layer; 3. liquid cooling the hollow plate; 4. a heat absorbing strip; 5. a separator.

Detailed Description

In order to make the technical solution of the present invention better understood, the present invention is described in detail below with reference to the accompanying drawings, and the description of the present invention is only exemplary and explanatory, and should not be construed as limiting the scope of the present invention.

Referring to fig. 1 to 4, in one embodiment, a cooling system of a pre-assembled electric vehicle charging station includes a liquid-cooled hollow plate 3 mounted on a side wall of a charging station chamber; the liquid cooling hollow plate 3 is filled with flowing cooling liquid; the liquid cooling hollow plate 3 is connected with a water pump and a heat absorption end of a plate type heat exchanger through a first circulating pipeline; the heat dissipation end of the plate heat exchanger is connected with a liquid storage tank, a compressor, a condenser and an expansion valve through a second circulating pipeline; and heat absorbing strips 4 are uniformly distributed on the outer wall of the liquid cooling hollow plate 3.

The liquid-cooled hollow plate 3 is rectangular plate-shaped, a liquid inlet pipe and a liquid outlet pipe are mounted at the side ends of the liquid-cooled hollow plate, and the liquid inlet pipe and the liquid outlet pipe are communicated with the plate heat exchanger through circulating pipelines; the cooling liquid is water or antifreeze cooling liquid; the water pump is used for driving the cooling liquid to flow and flows in the circulating pipeline between the liquid cooling hollow plate 3 and the plate heat exchanger; the liquid storage tank is used for storing condensing agent; the compressor is used for compressing the liquid condensing agent into a liquid state; the liquid condensing agent enters a condenser for heat dissipation, then enters a plate heat exchanger for heat absorption, then changes into a gas state, enters a liquid storage tank, is compressed into a liquid state by a compressor again, and circularly flows in the way; the expansion valve is used for controlling the pressure of the condensing agent, and when the pressure of the condensing agent is greater than the set pressure of the expansion valve, the expansion valve is opened, so that the condensing agent after heat dissipation flows into the plate heat exchanger for heat exchange; the heat absorbing strip 4 is long strip-shaped, is vertically arranged on the outer wall of the liquid cooling hollow plate 3 and is used for absorbing heat in the charging station and accelerating the cooling efficiency.

Further optimization is carried out on the basis of the embodiment: and an electric heater and an expansion tank are also arranged on the circulating pipeline of the liquid cooling hollow plate 3. The electric heater is used for heating and preventing freezing of the cooling liquid, so that the pipeline breakage caused by freezing of the cooling liquid in winter is prevented; the cooling liquid is heated and then collides, the volume is increased, and the expansion tank is used for storing the cooling liquid with the increased volume.

As shown in fig. 2-3, further optimization is performed on the basis of the above-mentioned embodiments: the liquid cooling hollow plate 3 is internally and transversely provided with a partition plate 5 which is distributed in an S shape at intervals in the inner cavity.

After the coolant liquid flowed in through the inlet pipe, the coolant liquid flowed along the inner chamber of S type, absorbed external heat through the heat absorption strip, ensured the heat absorption homogeneity, improved heat absorption efficiency.

As shown in fig. 3, in order to improve the strength of the liquid-cooled hollow slab and also to facilitate cleaning, the above embodiment is further optimized: the heat absorbing strips 4 are in a vertical state and are distributed on the liquid cooling hollow plate 3 in a transverse array mode. The heat absorption strips are in a vertical state, dust is not easy to fall on the heat absorption strips, the heat absorption strips are vertically installed, and the partition plates 5 are transversely installed, so that the strength of the liquid cooling hollow plate can be greatly improved after the heat absorption strips are arranged in a staggered mode.

Further optimization is carried out on the basis of the embodiment: and a filter is also arranged on the circulating pipeline of the liquid cooling hollow plate 3. The filter is used for filtering the coolant, prevents that debris in the coolant from influencing the operating stability of equipment.

As shown in fig. 2, the optimization is further performed on the basis of the above embodiment: the indoor outer wall of charging station is the double-layer wall, and it has the thermal insulation layer to fill in the intermediate layer chamber. The heat insulating layer may be expanded perlite.

The utility model discloses concrete theory of operation:

as shown in fig. 1, the circulation pipeline between the plate heat exchanger and the liquid-cooled hollow plate is a first circulation pipeline; and the circulating pipeline between the plate heat exchanger and the condenser is a second circulating pipeline.

The water pump drives the cooling liquid to flow in a first circulating pipeline between the liquid cooling hollow plate and the plate type heat exchanger, and the cooling liquid absorbs heat inside the charging station through the liquid cooling hollow plate and is pumped into the plate type heat exchanger through the water pump for heat dissipation exchange; the plate heat exchanger transfers the absorbed heat to a condensing agent in the second circulating pipeline, the condensing agent absorbs heat and then is pressed into a condenser through a compressor for cooling, and then the condensing agent flows back to the plate heat exchanger for heat absorption exchange again.

The electric heater is used for preventing the cooling liquid in the first circulating pipeline from being frozen in winter; the expansion tank is used for storing cooling liquid; the filter is used for filtering the cooling liquid and collecting impurities; the expansion valve is used for controlling the flowing pressure of the condensing agent; the liquid storage tank is used for storing the gasified condensing agent; the compressor is used to drive the flow of refrigerant.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The principles and embodiments of the present invention have been explained herein using specific examples, which are presented only to assist in understanding the methods and their core concepts. The foregoing is only a preferred embodiment of the present invention, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes can be made without departing from the principle of the present invention, and the above technical features can be combined in a proper manner; the application of these modifications, variations or combinations, or the application of the concepts and solutions of the present invention in other contexts without modification, is not intended to be considered as a limitation of the present invention.

Claims

1. A cooling system of a pre-installed electric vehicle charging station is characterized in that a liquid cooling hollow plate (3) is installed on the side wall in a charging station chamber; the liquid cooling hollow plate (3) is filled with flowing cooling liquid; the liquid cooling hollow plate (3) is connected with a water pump and a heat absorption end of the plate type heat exchanger through a first circulating pipeline; the heat dissipation end of the plate heat exchanger is connected with a liquid storage tank, a compressor, a condenser and an expansion valve through a second circulating pipeline; and heat absorbing strips (4) are uniformly distributed on the outer wall of the liquid cooling hollow plate (3).

2. The cooling system of a pre-assembled electric vehicle charging station as set forth in claim 1, wherein the first circulation pipe is further provided with an electric heater and an expansion tank.

3. The cooling system of a pre-assembled electric vehicle charging station as set forth in claim 1, wherein the liquid-cooled hollow plate (3) is provided with a partition plate (5) transversely to divide the inner cavity into S-shaped spaces.

4. The cooling system of a pre-assembled electric vehicle charging station according to claim 1, wherein the heat absorbing strips (4) are arranged in a vertical configuration and distributed in a transverse array on the liquid-cooled hollow plate (3).

5. The cooling system of a pre-assembled electric vehicle charging station as claimed in claim 1, wherein the circulating pipe of the liquid-cooled hollow plate (3) is further provided with a filter.

6. The cooling system of a pre-assembled electric vehicle charging station as claimed in claim 1, wherein the outer wall of the charging station chamber is a double wall, and the interlayer cavity is filled with a thermal insulating layer.