CN218550527U

CN218550527U - Charging and discharging equipment and charging and discharging system

Info

Publication number: CN218550527U
Application number: CN202222759920.4U
Authority: CN
Inventors: 刘斌
Original assignee: Sany Technology Equipment Co Ltd
Current assignee: Sany Technology Equipment Co Ltd
Priority date: 2022-10-19
Filing date: 2022-10-19
Publication date: 2023-02-28
Anticipated expiration: 2032-10-19

Abstract

The application relates to the technical field of heat dissipation of charging and discharging equipment, and particularly provides the charging and discharging equipment and a charging and discharging system. The charging and discharging equipment is used for the capacity grading and/or formation operation of the battery and comprises a cabinet body, a probe module and a power supply module, wherein a cabinet body air duct leading to the probe module and/or the power supply module is formed inside the cabinet body; the cold row of airing exhaust, set up in the air intake of the air duct of the cabinet and/or cabinet in the air duct of the cabinet, have air exhaust device and hold the cooling row of the cooling medium, the cooling row locates at the air inlet or air outlet of the air exhaust device. The application provides a charging and discharging equipment combines two kinds of cooling methods of water cooling and liquid cooling to and wind channel wind-guiding effect, effectively dispels the heat to equipment inside, possesses good heat dispersion, leads to influencing the problem of partial volume quality with the difficult heat dissipation of partial volume equipment among the solution prior art.

Description

Charging and discharging equipment and charging and discharging system

Technical Field

The application relates to the technical field of heat dissipation of charging and discharging equipment, in particular to charging and discharging equipment and a charging and discharging system.

Background

In the manufacture of the lithium battery, the battery core needs to be subjected to chemical conversion and capacity grading so as to ensure the quality of the final product of the power supply product. The first charge of a lithium battery is known as 'formation' for activating the active material within the battery body. The capacity grading means that: and charging and discharging the battery, and detecting the discharge capacity when the battery is fully charged to determine the capacity of the battery. Only cells with a capacity that meets or exceeds the design capacity will be acceptable. This process of screening out acceptable batteries by capacity testing is called capacity grading.

The capacity grading equipment is equipment for grading the capacity of a lithium battery, the formation equipment is equipment for forming the battery, and the capacity grading equipment and the formation equipment are both provided with a charging and discharging power supply (such as an AC-DC module and/or a DC-DC module) for charging and discharging the battery and a needle bed, and a probe module formed by a plurality of groups of probes is arranged on the needle bed (one group of probes is connected with the positive electrode and the negative electrode of one battery for charging operation). This structure leads to the inside of formation partial volume equipment to produce a large amount of heats easily, if the radiating effect is not good, can influence the normal clear of operation, influences operation effect and precision.

SUMMERY OF THE UTILITY MODEL

In view of this, the present application is directed to provide a charging and discharging device, which combines two cooling manners of water cooling and liquid cooling, and an air duct air guiding function, so as to effectively dissipate heat inside the device, and has good heat dissipation performance, so as to solve the problem that the heat dissipation performance of the capacity-grading device is low in the prior art, which affects the capacity-grading quality.

The application provides a charging and discharging device for capacity grading and/or formation operation of a battery, which comprises a cabinet body, a probe module and/or a power module, wherein a cabinet body air channel leading to the probe module and/or the power module is formed inside the cabinet body; and the cold air exhaust row is arranged at the air inlet of the cabinet air duct and/or in the cabinet air duct, is provided with an air exhaust device and a cooling row containing a cooling medium, and is positioned at the air inlet or the air outlet of the air exhaust device.

In a possible implementation manner, the plurality of cold air exhaust rows are provided, wherein the first cold air exhaust row is provided at an air inlet of the air duct of the cabinet body, and the rest cold air exhaust rows are provided in the air duct of the cabinet body.

In a possible embodiment, the remaining cold rows of exhaust air include a second cold row of exhaust air that directs airflow to the power module, and a third cold row of exhaust air that directs airflow to the probe module.

In a possible implementation manner, a first operation cavity, a placing cavity and a second operation cavity are arranged in the cabinet body, and the cabinet body air duct comprises an air inlet section located in the placing cavity, a first air outlet section arranged in the first operation cavity and a second air outlet section arranged in the second operation cavity.

In one possible embodiment, the power module comprises an ac-to-dc module and a dc-to-dc module, and the ac-to-dc module is located in the placing cavity; the direct current-to-direct current modules are provided with two groups and are respectively arranged in the first operation cavity and the second operation cavity so as to be electrically connected with the probe module.

In a possible implementation manner, the two operation cavities are respectively arranged at two sides of the placing cavity, two side walls of the placing cavity are provided with ventilation openings, and the third air exhaust cold row is provided with two air exhaust cold rows which are respectively positioned at the two ventilation openings.

In a possible implementation mode, the air inlet of the cabinet air duct is formed in the top wall of the placing cavity; and/or each row of air cooling rows is fixedly connected with the air exhaust device.

In a possible implementation manner, the air conditioner further comprises an air outlet device, wherein the air outlet device is arranged at an air outlet of the cabinet air duct and discharges air in the cabinet air duct out of the air duct.

In a possible embodiment, the air conditioner further comprises a liquid supply pipeline, and the first cold exhaust row, the second cold exhaust row and the third cold exhaust row are connected in series on the liquid supply pipeline.

Another aspect of the application provides a charging and discharging system, comprising the charging and discharging device as defined in any one of the above.

In a possible implementation mode, the charging and discharging equipment is provided with a plurality of air inlet sections which are sequentially communicated, and the air inlet sections are stacked along the height direction and placed.

According to the application, its internal portion of cabinet is provided with cabinet body wind channel to be provided with the cold row of airing exhaust and dispel the heat to cabinet internal portion. The exhaust cold row comprises an exhaust device and a cooling row, the cooling row contains a cooling medium, and a cooling source is provided. The air exhausting device can generate air flow, the cooling row is positioned at the air inlet or the air outlet of the air exhausting device and can cool the air near the air exhausting device and the air flow generated by the air exhausting device, and thus, the air flow blown from the air exhausting device is low-temperature air flow. Simultaneously, the cold row of airing exhaust sets up in the air intake department in cabinet body wind channel and/or cabinet body wind channel for low temperature air current flows in cabinet body wind channel, and cabinet body wind channel accesss to probe module and power module, then parts such as the big probe module of cabinet body internal portion heat production of guide low temperature air current flow direction and/or power module of cabinet body wind channel, thereby the internal produced heat of efficient absorption cabinet, effectively dispel the heat to the charging and discharging equipment inside, prevent that the heat from piling up.

Therefore, the charging and discharging equipment provided by the application can efficiently dissipate heat inside the equipment by combining two cooling modes of air cooling and liquid cooling and the flow guide effect of the air duct of the cabinet body, is not easily influenced by the temperature of the environment where the equipment is located to reduce the heat dissipation efficiency, can effectively dissipate heat in a high-temperature environment, obviously reduces the influence of the environment temperature on the heat dissipation of the charging and discharging equipment, and can keep good heat dissipation performance; the charging and discharging equipment is used for capacity grading and/or formation operation, and the operation quality and the operation precision can be effectively guaranteed.

Drawings

Fig. 1 is a schematic structural diagram of a charging and discharging device in an embodiment of the present application;

FIG. 2 is a schematic view of an air duct of the cabinet according to the embodiment of the present application;

FIG. 3 is a schematic structural diagram of an exhaust cold row in the embodiment of the present application;

FIG. 4 is a schematic view of an air duct of the capacity grading system according to the embodiment of the present disclosure;

fig. 5 is a schematic bottom view of the charging and discharging device in the embodiment of the present application.

In fig. 1-5:

1. a cabinet body; 11. a placement chamber; 12. a first working chamber; 13. a second working chamber; 2. a power supply module; 3. a probe module; 4. first air exhaust cold row; 5. second air exhaust and cold exhaust; 6. third, air exhaust and cold exhaust; 7. an air outlet device; 10. an air exhaust device; 20. and (6) cooling the rows.

Detailed Description

The embodiment of the application is dedicated to providing a charging and discharging device, combines two kinds of cooling methods of water cooling and liquid cooling to and wind channel wind-guiding effect, effectively dispels the heat to equipment inside, possesses good heat dispersion, lower and lead to the problem that influences the partial volume quality with partial volume equipment heat dispersion among the solution prior art. The embodiment of the application also provides a charging and discharging system comprising the charging and discharging equipment.

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Referring to fig. 1-5, an embodiment of the present application provides a charging and discharging apparatus, which includes a cabinet 1, a power module 2, such as an AC-DC module (AC-to-DC power module) and/or a DC-DC module (DC-to-DC power module), and a probe module 3, disposed in the cabinet 1, wherein probes of the probe module 3 are connected to positive and negative electrodes of a battery for charging or discharging the battery. The charging and discharging device may be a capacity grading device, a chemical conversion device, or a chemical conversion and capacity grading device. A cabinet air duct is formed in a cabinet body 1 of the equipment and leads to the probe module 3 and/or the power module 2, and the probe module 3 and the power module 2 are distributed in the cabinet air duct, or are positioned on one side of the cabinet air duct, or are distributed on two sides of the cabinet air duct, or are penetrated by the cabinet air duct. The cabinet body 1 is further provided with a cold air exhaust row, the cold air exhaust row comprises an air exhaust device 10 and a cooling row 20, the cooling row 20 contains a cooling medium and is provided with a medium inlet and a medium outlet, when the cooling medium is cooling liquid, the cooling medium can be connected with a liquid supply pipeline for providing the cooling liquid so as to replace the cooling medium, a continuous cooling source is formed, and a continuous cooling effect is provided for the inside of the cabinet body 1. The air exhausting device 10 is used for generating air flow, and the cooling row 20 is located at the air inlet or the air outlet of the air exhausting device 10, so as to effectively cool the air at the air inlet side or the air outlet side of the air exhausting device 10, so that the air flow generated by the air exhausting device 10 is low-temperature air flow. In this way, the air flow blown from the air discharging device 10 into the air duct is a low-temperature air flow.

Simultaneously, the cold row of airing exhaust sets up in the air intake department in cabinet body wind channel and/or cabinet body wind channel for low temperature air current flows in cabinet body wind channel, and cabinet body wind channel accesss to probe module 3 and/or power module 2, then parts such as cabinet body wind channel guide low temperature air current flow to the big probe module 3 of the internal portion heat production of cabinet 1 and/or power module 2, thereby the efficient absorbs the internal produced heat of cabinet 1, effectively dispel the heat to the charging and discharging equipment inside, prevent that the heat from piling up. And because the cold row of airing exhaust has combined air-cooled and water-cooled two kinds of modes, cooling row 20 can the continuation provide the cooling for the air current that flows through in the cabinet body 1 is the low temperature air current all the time, and heat dispersion receives the influence nature of external environment temperature lower, in summer or high temperature environment, still can effectively dispel the heat to the cabinet body 1, makes charge and discharge equipment possess good heat dispersion.

By the arrangement, the charging and discharging equipment provided by the application combines two cooling modes of air cooling and liquid cooling and the flow guide effect of the air duct of the cabinet body, can efficiently dissipate heat inside the equipment, is not easily influenced by the temperature of the environment where the equipment is located to reduce the heat dissipation efficiency, can effectively dissipate heat in a high-temperature environment, enables the influence of the environment temperature on the heat dissipation of the charging and discharging equipment to be remarkably reduced, and can keep good heat dissipation performance; the charging and discharging equipment is used for carrying out capacity grading and/or formation operation, and the operation quality and the operation precision can be effectively guaranteed.

In some embodiments, there are multiple cold rows, wherein the first cold row 4 is disposed at the air inlet of the cabinet air duct, and the rest cold rows are disposed in the cabinet air duct. So set up, first row of forced air cooling is arranged 4 and is carried out the first cooling to the air current that blows in the wind channel, make the air current that gets into the cabinet body 1 promptly for the low temperature air current that experiences the supercooling, then all the other cold rows of airing exhaust in the cabinet body wind channel, on the one hand can strengthen the wind speed and the amount of wind of air current, on the other hand, can continue to cool off the air current once more, thereby the cooling of at least two-stage has been carried out to the air current, can high-efficient absorption flow through the heat of part such as power module 2 and probe module 3, carry out high-efficient heat dissipation to cabinet body 1 inside.

The first row of air cooling rows 4 are arranged at the air inlet, can be positioned outside the cabinet body 1 and fixed on the outer wall of the cabinet body 1, and also can be positioned in the cabinet body 1 and connected with the area of the cabinet body 1 forming the inner wall of the air channel of the cabinet body.

The number and the positions of the rest of the exhaust cold rows can be specifically set according to the structure inside the cabinet body 1. In some embodiments, the remaining rows of cold air exhaust include two types, one type directing air flow to the power module 2, referred to as the second row of cold air exhaust 5, and the other type directing air flow to the probe module 3, referred to as the third row of cold air exhaust 6. Thus, through the cold row of airing exhaust that possesses exhaust device 10 and cooling row 20, with powerful low temperature air current direction power module 2 and the probe module 3 that produce the heat quantity greatly, can carry out the pertinence intensive cooling to the big part module of heat quantity, effectively ensure the bulk temperature in the cabinet body 1, also can effectively prevent local high temperature.

In some embodiments, the power module 2 and the probe module 3 in the cabinet 1 are separately disposed, the cabinet 1 includes a first operation chamber 12, a placing chamber 11 and a second operation chamber 13, the three chambers are separated by a partition, part or all of the power module 2 is disposed in the placing chamber 11, and the probe module 3 is disposed in two, one is disposed in the first operation chamber 12, and the other is disposed in the second operation chamber 13. And the cabinet air duct includes an air inlet section located in the placing cavity 11, a first air outlet section arranged in the first working cavity 12, and a second air outlet section arranged in the second working cavity 13. The first air outlet section and the second air outlet section are communicated with the air inlet section. So, cabinet body wind channel has passed through power module 2 and every probe module 3 in the cabinet body 1, makes the low temperature air current all carry out effective cooling to every big part of heat production volume.

The air inlet of the cabinet air duct is positioned on the cavity wall of the placing cavity 11, the low-temperature air flow firstly enters the placing cavity 11 and then enters the operation cavity, and the air outlet of the cabinet air duct is arranged on the cavity wall of the operation cavity.

Specifically, the power module 2 includes an AC-DC power module, i.e., an AC-to-DC power module, and a DC-DC power module, i.e., a DC-to-DC power module. The AC-DC modules are placed in the placing chamber 11 and separately provided from the probe modules 3, and the DC-DC modules are directly connected to the probe modules 3, so that two sets of DC-DC modules are provided, respectively, in the two working chambers, and one set of DC-DC modules is connected to one set of probe modules. Therefore, the overall structure is simplified, the power module 2 is prevented from being arranged in a centralized mode, heat is concentrated and heat dissipation is not easy, meanwhile, the DC-DC module and the probe module 3 are located in the operation cavity, when low-temperature airflow enters the operation cavity from the air inlet section, namely the placing cavity 11, the DC-DC module and the probe module 3 can be cooled simultaneously, and the heat dissipation effect is optimized.

In some embodiments, the two working chambers are respectively arranged at two sides of the placing chamber 11, as shown in fig. 2, two side walls of the placing chamber 11 close to the working chambers are respectively provided with a vent to communicate the air inlet section and the air outlet section, the third exhaust cold row 6 is provided with two vents respectively located at the two vents, so that the low-temperature air flow is divided into two paths to be respectively introduced into the two working chambers, and the air flow entering the working chambers is cooled again, and the air exhaust device 10 on the third exhaust cold row 6 can also enhance the air speed and the air volume of the air flow blown into the working chambers, so that the air flow blown to each component with large heat productivity is cooled twice and enhanced twice, and the heat dissipation effect is optimized. In this embodiment, the first working chamber 12 and the second working chamber 13 are both provided with air outlets.

Of course, in some other embodiments, the first working chamber 12 and the second working chamber 13 may be located on the same side of the placing chamber 11, and thus the air inlet section, the first air outlet section and the second air outlet section are connected in sequence.

The third air exhaust cold row 6 is arranged at the vent, can be positioned in the placing cavity 11, fixed on the wall of the placing cavity 11 provided with the vent, can also be positioned in the operation cavity, and can also be embedded into a partition plate for separating the placing cavity 11 and the operation cavity and laid in the vent on the partition plate.

The air inlet of the cabinet body air duct can be arranged on the top wall of the placing cavity 11, so that low-temperature air flow is blown from top to bottom in the placing cavity 11, and then the air flow is guided into the operation cavity under the action of an air exhaust device in the third air exhaust cold row 6. The air inlet is formed in the top wall and is less affected by the internal components of the cabinet 1, and the size of the air inlet can be increased compared with the air inlet formed in the side walls (which are generally used for fixing or connecting some components). The air outlet of the cabinet air duct can be opened on the side wall of the operation cavity.

In some embodiments, the cabinet 1 is further provided with an air outlet device 7, and the air outlet device 7 is disposed at an air outlet of the cabinet air duct, so as to efficiently discharge the air in the cabinet air duct out of the air duct. The air flow flowing to the air outlet absorbs the heat in the cabinet 1, the temperature is high, the air outlet device 7 is arranged to accelerate the discharge speed of the air flow with high temperature (compared with low-temperature air flow, the actual temperature is not limited to reach high temperature), and the cooling effect in the cabinet 1 can also be enhanced.

The air outlet device 7 may be a plurality of exhaust fans, and as shown in fig. 1, a plurality of exhaust fans are disposed at the air outlets of the first operation cavity 12 and the second operation cavity 13.

The air cooling rows comprise cooling rows 20 and air exhausting devices 10. For example, the first row of air-cooled rows 4 includes a first air-exhausting device and a first cooling row, the second row of air-cooled rows 5 includes a second air-exhausting device and a second cooling row, and the third row of air-cooled rows 6 includes a third air-exhausting device and a third cooling row. The structure of each exhaust cold row can be the same.

Specifically, in each row of air-cooled rows, the cooling row 20 is located at the air inlet or the air outlet of the air exhausting device 10, and in some embodiments, as shown in fig. 3, the cooling row 20 is located at the air inlet side or the air outlet side of the air exhausting device 10 and is opposite to the air inlet or the air outlet, and the axial projection of the air exhausting device 10 (i.e. the axial projection of the fan blades) and the projection of the cooling row 20 in the direction at least partially coincide. In the preferred embodiment, the cooling array 20 is positioned on the air intake side of the air exhaust device 10 opposite the air intake.

The cooling row 20 can also be fixedly connected with the exhaust device 10, so that on one hand, the distance between the cooling row and the exhaust device 10 is reduced, heat conduction is convenient to carry out, on the other hand, the cooling row 20 is connected with the exhaust device 10 to form a module, the exhaust cooling row can be integrally arranged, and the position replacement, the disassembly and maintenance and the like can also be integrally carried out, so that the operation is convenient. For example, the air exhaust device 10 is a fan, and includes blades and a housing for fixing the blades, and the housing is connected to the box body of the cooling bank 20, or the housing is connected to the wall of the cooling bank 20.

The exhaust device 10 and the cooling array 20 may be removably attached by fasteners, which also facilitates removal and attachment.

In some embodiments, at least two air exhausting devices 10 are connected to the single-side wall of the cooling row 20, that is, one air exhausting cold row is provided with one cooling row 20 and at least two air exhausting devices 10. So set up, can increase the produced low temperature air current of single cold row of airing exhaust, reinforcing radiating effect.

In some embodiments, a plurality of fluid channels are disposed in the cooling array 20 in communication with one another, for example, the fluid channels extend along a length of the cooling array 20, are arranged along a width of the cooling array, and are connected end to end or are connected at one end.

The cooling row 20 is provided with fins on the outer side to increase the contact area with the outside air and enhance the cooling efficiency of the airflow.

The box body material of the cooling row 20 includes metal, for example, at least the box wall on the side connected to or close to the exhaust device 10 is made of metal, or the whole box body is made of metal, which is more beneficial to heat conduction and exchange, and enhances the cooling efficiency of the cooling row 20 to the surrounding air.

In some embodiments, the charging and discharging device further comprises a liquid supply pipeline, and the first exhaust air-cooled row 4, the second exhaust air-cooled row 5 and the third exhaust air-cooled row 6 are connected in series on the liquid supply pipeline. For example, the media inlet of the cooling row on the first row of air-cooled rows 4, i.e. the first cooling row, is connected with the liquid supply pipe of the liquid supply pipeline, the media outlet is connected with the media inlet of the cooling row on the second row of air-cooled rows 5, i.e. the second cooling row, the media outlet of the second cooling row is respectively connected with the media inlets of the cooling rows on the two third rows of air-cooled rows 6, i.e. the third cooling rows, through two branch pipelines, and the media outlets of the two third cooling rows are both connected with the liquid outlet pipe of the liquid supply pipeline. The liquid supply pipeline is connected with a pipeline of an external cooling system, so that cooling liquid enters the charging and discharging equipment from the cooling system to absorb heat, and then returns to the cooling system to recover low temperature.

Of course, in other embodiments, each exhaust air cooling row may be connected in parallel in the liquid supply pipeline according to the working environment.

The application also provides a charging and discharging system, such as a grading system, or a formation grading system, comprising the charging and discharging equipment as described in any of the above embodiments. This system has combined two kinds of cooling methods of forced air cooling and liquid cooling to and the wind-guiding structure in wind channel, has good heat dispersion, and the derivation process of this beneficial effect is unanimous basically with the derivation process of the beneficial effect of charging and discharging equipment in above-mentioned embodiment, and the no longer repeated description here.

In some embodiments, as shown in fig. 4, in the system, the charging and discharging device is provided in a plurality of numbers, the plurality of charging and discharging devices are stacked in the height direction, and the air inlet sections of the cabinet air ducts of the plurality of charging and discharging devices are sequentially communicated.

Specifically, the placing chambers 11 of the respective charge and discharge devices may be communicated with each other in sequence. For example, except for the lowest charging and discharging device, the bottom walls of the placing cavities 11 of the other charging and discharging devices are provided with air passing openings, as shown in fig. 5, so as to be communicated with the placing cavities 11 of the adjacent lower charging and discharging devices, thereby forming a large air duct flowing from top to bottom, and on each device, two branch air flows are guided from two sides of the air duct to flow into the operation cavity where the probe module 3 is located, and then blown out from the operation cavity. So, when a plurality of charge and discharge equipment used jointly, formed a large-scale series connection wind channel, the low temperature air current can be by make full use of, compares in every equipment independent setting, has stronger heat dispersion.

The charging and discharging system also comprises a liquid supply system, and liquid supply pipelines of the charging and discharging devices are arranged in parallel.

The foregoing describes the general principles of the present application in conjunction with specific embodiments, however, it is noted that the advantages, effects, etc. mentioned in the present application are merely examples and are not limiting, and they should not be considered essential to the various embodiments of the present application. Furthermore, the foregoing disclosure of specific details is for the purpose of illustration and description and is not intended to be limiting, since the foregoing disclosure is not intended to be exhaustive or to limit the disclosure to the precise details disclosed.

The components, devices referred to in this application are meant as illustrative examples only and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the drawings. These components, devices may be connected, arranged, configured in any manner, as will be appreciated by those skilled in the art. Words such as "including," "comprising," "having," and the like are open-ended words that mean "including, but not limited to," and are used interchangeably therewith. As used herein, the words "or" and "refer to, and are used interchangeably with, the word" and/or, "unless the context clearly dictates otherwise. The word "such as" is used herein to mean, and is used interchangeably with, the phrase "such as but not limited to".

It should also be noted that in the apparatus, devices of the present application, the components may be disassembled and/or reassembled. These decompositions and/or recombinations are to be considered as equivalents of the present application.

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

It should be understood that the terms "first", "second" and "third" used in the description of the embodiments of the present application are only used for clearly illustrating the technical solutions and are not used for limiting the protection scope of the present application.

The foregoing description has been presented for purposes of illustration and description. Furthermore, the description is not intended to limit embodiments of the application to the form disclosed herein. While a number of example aspects and embodiments have been discussed above, those of skill in the art will recognize certain variations, modifications, alterations, additions and sub-combinations thereof.

The above description is only a preferred embodiment of the present application and should not be taken as limiting the present application, and any modifications, equivalents and the like that are within the spirit and scope of the present application should be included.

Claims

1. A charging and discharging device for the capacity grading and/or formation operation of a battery, comprising:

the cabinet body is internally provided with a cabinet body air duct leading to the probe module and/or the power supply module;

and the cold air exhaust row is arranged at the air inlet of the cabinet air duct and/or in the cabinet air duct, is provided with an air exhaust device and a cooling row containing a cooling medium, and is positioned at the air inlet or the air outlet of the air exhaust device.

2. The charging and discharging device according to claim 1, wherein a plurality of cold rows of discharged air are provided, wherein a first row of cold rows of discharged air is provided at the air inlet of the cabinet air duct, and the rest of cold rows of discharged air are provided in the cabinet air duct.

3. The charging and discharging device of claim 2, wherein the remaining cold rows of exhaust air include a second cold row of exhaust air directing airflow to the power module and a third cold row of exhaust air directing airflow to the probe module.

4. The charging and discharging device of claim 3, wherein the cabinet body is provided with a first operation chamber, a placing chamber and a second operation chamber, and the cabinet body air duct comprises an air inlet section located in the placing chamber, a first air outlet section arranged in the first operation chamber, and a second air outlet section arranged in the second operation chamber.

5. The charging and discharging device according to claim 4, wherein the power module comprises an AC-to-DC module and a DC-to-DC module, and the AC-to-DC module is located in the placing cavity; the direct current-to-direct current modules are provided with two groups and are respectively arranged in the first operation cavity and the second operation cavity so as to be electrically connected with the probe module.

6. The charging and discharging device according to claim 4, wherein two working chambers are respectively arranged at two sides of the placing chamber, two side walls of the placing chamber are provided with ventilation openings, and two third exhaust cold rows are arranged and respectively located at the two ventilation openings.

7. The charging and discharging device according to any one of claims 4 to 6, wherein the air inlet of the air duct of the cabinet body is formed in the top wall of the placing cavity; and/or each row of air cooling rows is fixedly connected with the air exhaust device.

8. The charging and discharging device according to claim 1, further comprising an air outlet device (7) disposed at an air outlet of the cabinet air duct and configured to discharge air in the cabinet air duct out of the air duct.

9. The charging and discharging device according to any one of claims 1 to 6, further comprising a liquid supply pipeline, and the first cold row of discharged air, the second cold row of discharged air and the third cold row of discharged air are connected in series on the liquid supply pipeline.

10. A charging and discharging system comprising the charging and discharging device according to any one of claims 1 to 9.

11. The charging and discharging system of claim 10, wherein the charging and discharging device is provided with a plurality of charging and discharging devices and stacked along the height direction, and the air inlet sections of the cabinet air ducts of the plurality of charging and discharging devices are sequentially communicated.