CN222507772U

CN222507772U - Energy storage cabinet air conditioning unit and energy storage cabinet

Info

Publication number: CN222507772U
Application number: CN202421061220.0U
Authority: CN
Inventors: 王晓斌; 徐卫军; 焦涛
Original assignee: Qingdao Hisense Network Energy Co ltd
Current assignee: Qingdao Hisense Network Energy Co ltd
Priority date: 2024-05-15
Filing date: 2024-05-15
Publication date: 2025-02-18
Anticipated expiration: 2034-05-15

Abstract

The utility model discloses an energy storage cabinet air conditioning unit and an energy storage cabinet, wherein the energy storage cabinet air conditioning unit comprises a shell, a liquid cooling temperature control module and a direct cooling temperature control module, the liquid cooling temperature control module comprises a liquid cooling heat radiation fan, the liquid cooling heat radiation fan is installed in an upper installation area through a liquid cooling heat radiation fan installation component, a junction box comprises a box main body and a plug installation plate, the box main body is in a box shape with only the bottom open, the plug installation plate is arranged in the box main body, the box main body is divided into a rear part extending into an installation space and a front part exposed out of the front side of a front side plate, the plug installation plate is also divided into a rear part and a front part, and a junction plug is installed on the front part of the plug installation plate. The energy storage cabinet air conditioner unit integrates main structural components of the liquid cooling temperature control module and the direct cooling temperature control module into a whole, is compact in structure, and the box main body covers the plug mounting plate inside, so that the waterproof reliability of a wiring position is ensured, and the working reliability of the unit is further ensured.

Description

Energy storage cabinet air conditioning unit and energy storage cabinet

Technical Field

The utility model relates to the technical field of energy storage, in particular to an energy storage cabinet air conditioning unit and an energy storage cabinet provided with the air conditioning unit.

Background

The outdoor energy storage cabinet has the problem of poor heat dissipation in the cabinet due to large battery loading and illumination radiation. The battery is in a high-temperature environment, so that the service life of the battery is shortened, the battery cannot be charged normally, even explosion occurs, and the battery is seriously powered down, cannot be charged normally, and has a shortened service life due to the fact that the temperature is too low in winter.

Energy storage air conditioning products on the market are common and have two types, namely an air cooling type and a liquid cooling type. Liquid cooling has gradually become the primary means of energy storage and temperature control. The liquid cooling temperature control product is large in volume and heavy in weight, and is difficult to operate in maintenance, replacement and movement. The huge volume causes the cost to be too high, the occupied area is large, and the storage space of the battery of the energy storage cabinet is occupied. Meanwhile, the liquid cooling energy storage temperature control product in the market has high energy consumption and low energy efficiency ratio, dissipates heat for a battery and a PCS (energy storage converter) and consumes a large amount of electric energy, so that the liquid cooling energy storage temperature control product is not suitable for the current low-carbon energy-saving development trend.

With the development of energy storage battery technology, high-capacity battery cells are gradually applied, the installed density of an energy storage system is gradually increased, the capability requirement on temperature control products is increased, and the defects of low temperature rising and falling speed, poor battery cell temperature uniformity, low energy conversion efficiency and high system cost of the liquid cooling temperature control products are gradually obvious.

And at present, the plug of the junction box of the liquid cooling temperature control unit is usually exposed on a unit shell, so that the connection part of the plug and the wire is exposed outside after the wire is inserted, and the plug without the wire is exposed outside, thus having water inlet risk and affecting the working safety and reliability of the unit.

The above information disclosed in this background section is only for enhancement of understanding of the background section of the application and therefore it may not form the prior art that is already known to those of ordinary skill in the art.

Disclosure of Invention

Aiming at the problems pointed out in the background art, the utility model provides an energy storage cabinet air conditioning unit and an energy storage cabinet, which integrate a direct cooling module and a liquid cooling module into a whole, have compact structure, small occupied space and good waterproof property of a junction box, and ensure the working reliability of the unit.

In order to achieve the aim of the utility model, the utility model is realized by adopting the following technical scheme:

In some embodiments of the present application, there is provided an energy storage cabinet air conditioning unit, including:

The shell encloses an installation space and comprises a frame formed by connecting a plurality of cross beams and a plurality of vertical beams and a shell coated on the outer side of the frame, wherein the shell comprises a top plate, a bottom plate, a front side plate, a rear side plate, a left side plate and a right side plate;

The liquid cooling temperature control module is arranged in the installation space and comprises a water pump, an expansion tank, a cooler and a liquid cooling heat radiation fan;

The direct cooling temperature control module is arranged in the installation space and comprises a compressor, a heat exchanger and a direct cooling heat dissipation fan;

The compressor, the heat exchanger and the direct cooling heat dissipation fan are arranged on the bottom plate, and the lower air outlet is opposite to the area where the direct cooling heat dissipation fan is located;

The cooler is positioned right above the heat exchanger, the liquid cooling heat dissipation fan is positioned right above the direct cooling heat dissipation fan, and the upper air outlet is right opposite to the area where the liquid cooling heat dissipation fan is positioned;

The junction box comprises a box main body and a plug mounting plate, wherein the box main body is box-shaped with only the bottom open, the plug mounting plate is arranged in the box main body, a through part is formed on the front side plate, the junction box is inserted into the through part, the box main body is divided into a rear part extending into the mounting space and a front part exposed out of the front side plate, the plug mounting plate is also divided into a rear part located in the mounting space and a front part located in the front side of the front side plate, and the junction plug is mounted on the front part of the plug mounting plate.

The junction box is arranged on the front side plate of the shell and comprises a box main body and a plug mounting plate, wherein the box main body is covered by the plug mounting plate above the plug mounting plate, and a wiring plug is arranged on the plug mounting plate.

In some embodiments of the present application, there is provided an energy storage cabinet comprising:

The cabinet body is characterized in that the internal space of the cabinet body is divided into a battery compartment and an air conditioning compartment, the air conditioning compartment is arranged on the side part of the battery compartment, and the air conditioning compartment is communicated with the front and the back;

The air conditioning unit is the energy storage cabinet air conditioning unit, the energy storage cabinet air conditioning unit is arranged in the air conditioning bin, the return air inlet is opposite to the front through hole of the air conditioning bin, and the upper air outlet and the lower air outlet are opposite to the rear through hole of the air conditioning bin;

The direct cooling plate is arranged in the battery compartment, and is connected with the direct cooling temperature control module to form a refrigerant circulation loop for carrying out heat exchange with the battery;

The liquid cooling plate is arranged in the battery compartment, is connected with the liquid cooling temperature control module to form a liquid circulation loop and is used for carrying out heat exchange with the battery PCS.

Compared with the prior art, the utility model has the advantages and positive effects that:

1. The utility model relates to an energy storage cabinet air conditioning unit, which integrates main structural components of a liquid cooling temperature control module and a direct cooling temperature control module, partitions an inner cavity of a shell, reasonably installs and arranges each structural component of the liquid cooling temperature control module and the direct cooling temperature control module and an electric control box to ensure that the unit is compact in internal structure, and respectively arranges a cooler and a heat exchanger with larger height and larger volume in an upper installation area and a lower installation area which are vertically separated to form the vertical air conditioning unit, and fully utilizes the height space of a second installation area to install the vertical air conditioning unit, so that the occupation of transverse and longitudinal spaces is reduced;

2. The integrated energy storage cabinet air conditioning unit integrated with the liquid cooling temperature control module and the direct cooling temperature control module is convenient for the whole machine to be disassembled or maintained;

3. The integrated energy storage cabinet air conditioning unit integrated with the liquid cooling temperature control module and the direct cooling temperature control module is also beneficial to simplifying the layout of direct cooling pipelines and liquid cooling pipelines;

4. The junction box of the energy storage cabinet air conditioner unit comprises a box main body and a plug mounting plate, wherein the box main body is box-shaped with only the bottom open, the plug mounting plate is arranged in the box main body, the box main body covers the plug mounting plate, the waterproof reliability of a wiring position is guaranteed, and the working reliability of the unit is further guaranteed.

Other features and advantages of the present utility model will become apparent upon review of the detailed description of the utility model in conjunction with the drawings.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it will be obvious that the drawings in the following description are some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.

FIG. 1 is a schematic diagram of a front side view angle structure of an energy storage cabinet according to an embodiment;

FIG. 2 is a schematic diagram of a rear side view angle structure of an energy storage cabinet according to an embodiment;

fig. 3 is a schematic structural diagram of the energy storage cabinet according to the embodiment, wherein a cabinet door is omitted;

FIG. 4 is a schematic diagram of an energy storage cabinet air conditioning unit according to an embodiment;

Fig. 5 is a schematic structural view of the energy storage cabinet air conditioning unit according to an embodiment with the top plate and the left side plate omitted;

Fig. 6 is a schematic structural view of an energy storage cabinet air conditioning unit according to an embodiment with a rear view of the top plate, the left side plate and the rear side plate omitted;

Fig. 7 is an enlarged view of a portion a of fig. 6;

fig. 8 is an enlarged view of a portion B of fig. 6;

fig. 9 is a schematic structural view of an energy storage cabinet air conditioning unit according to an embodiment from another perspective after omitting a top plate, a left side plate and a rear side plate;

Fig. 10 is an enlarged view of a portion C of fig. 9;

Fig. 11 is an enlarged view of a portion D of fig. 9;

Fig. 12 is a schematic structural view of a front side direct cooling heat dissipation fan partition of an energy storage cabinet air conditioning unit according to an embodiment;

Fig. 13 is a schematic structural view of the energy storage cabinet air conditioning unit according to the embodiment, with the top plate, the left side plate and the electrical box cover omitted;

FIG. 14 is a schematic view of a structure of an energy storage cabinet air conditioning unit housing at a front side panel from a view angle according to an embodiment;

fig. 15 is an enlarged view of the portion E of fig. 14;

FIG. 16 is a schematic view of a structure from another perspective at a front side panel of an energy storage cabinet air conditioning unit housing according to an embodiment;

FIG. 17 is a schematic diagram of a junction box of an energy storage cabinet air conditioning unit according to an embodiment from a view angle;

FIG. 18 is a schematic diagram of a junction box of an energy storage cabinet air conditioning unit according to an embodiment from another perspective;

fig. 19 is a schematic structural view showing a mounting state of a junction box of an energy storage cabinet air conditioning unit on a front side plate of a housing according to an embodiment;

FIG. 20 is a schematic view of a housing floor structure of an energy storage cabinet air conditioning unit according to an embodiment;

Fig. 21 is an enlarged view of the portion F of fig. 20;

FIG. 22 is a schematic view of a housing floor with mounting locations for an energy storage cabinet air conditioning unit according to an embodiment;

Fig. 23 is a schematic structural view of a direct cooling heat dissipation fan mounting position of an energy storage cabinet air conditioning unit according to an embodiment;

Fig. 24 is a schematic temperature control diagram of an energy storage cabinet air conditioning unit according to an embodiment.

Reference numerals:

100. A cabinet body; 110, an air conditioning bin; 120, a battery compartment; 130, cabinet door, 140, power supply compartment, 200, air conditioning unit, 210, housing, 211, return door, 212, upper outlet, 213, lower outlet, 214, first mounting area, 215, second mounting area, 215a, upper mounting area, 215B, lower mounting area, 216, air duct partition, 217, frame, 218, housing, 219, extension area, a, first-order hinge, B, second-order hinge, 220, appliance box, 221, appliance box, 230, compressor, 240, regenerator, 250, heat exchanger, 260, water pump, expansion tank, 280, cooler, 290, liquid cooling fan, 2100, direct cooling fan, 2110, front-side liquid cooling fan partition, 2120, rear-side liquid cooling fan bracket, 2121, upper horizontal support, 2122, lower horizontal support, 2123, vertical support, 2124, sheet metal reinforcement base 2130, front-side direct cooling fan partition, 2131, horizontal fixing portion, 2140, rear-side liquid cooling fan bracket, 21, door, 21, fan-side door, 211, 280, cooling fan, 211, 2112, 2114, 2110, 2112, 2110, 2112, 2110, 2111, 2112, 2110, front-side, 2111, 2112, front, four-way valve, 800, first direct cooling temperature sensor, 900, second direct cooling temperature sensor, 1000, first liquid cooling temperature sensor, 1100, second liquid cooling temperature sensor, 1200, cooling liquid heater, 1300, water flow regulating valve, 1400, electromagnetic water valve, 1500, direct cooling parallel branch, 1600, liquid cooling pipeline, 1700, oil separator, 1800, filter, 1900, oil return capillary, 11000, reservoir.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

In the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The following disclosure provides many different embodiments, or examples, for implementing different features of the utility model. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the utility model. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present utility model provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

Referring to fig. 1 to 3, in some embodiments of the present application, an energy storage cabinet is provided, which includes a cabinet body 100, an air conditioning unit 200, a direct cooling plate 300, and a liquid cooling plate 400.

The cabinet 100 is generally a rectangular parallelepiped cabinet 100, the internal space of which includes an air conditioning bin 110 and a battery bin 120, the air conditioning bin 110 and the battery bin 120 are independent from each other, and the air conditioning bin 110 is disposed at a side portion of the battery bin 120. The cabinet body 100 has a front opening and is provided with a cabinet door 130 for opening and closing the energy storage cabinet.

The battery compartment 120 is at least used for accommodating a battery and a battery PCS, the battery is specifically an energy storage battery, the battery PACK formed by packaging battery clusters is arranged in the battery compartment 120, and the battery PCS is also arranged in the battery compartment 120.

The air conditioning bin 110 is used for installing the air conditioning unit 200, and the air conditioning bin 110 is communicated back and forth so as to facilitate air return and air outlet of the air conditioning unit 200.

In some embodiments of the present application, the interior space of the cabinet 100 further includes a power supply compartment 140 for mounting a power supply.

The air conditioning unit 200 is installed in the air conditioning bin 110, and is used for adjusting the temperature of the energy storage cabinet, performing constant temperature management on the energy storage cabinet, and mainly used for adjusting the temperature of the battery and the battery PCS of the battery bin 120, so that the battery and the battery PCS can work in the respective ideal temperature range interval, and the over-high or over-low temperature of the battery and the battery PCS is avoided.

Referring to fig. 4 to 6, the air conditioning unit 200 of the energy storage cabinet has an outer contour in a rectangular parallelepiped shape with a smaller width dimension, is disposed in the air conditioning bin 110 in a vertical posture, and includes a housing 210, a direct cooling temperature control module, a liquid cooling temperature control module, and an electrical box 220.

The outer contour of the shell 210 is in a prolate square shape with smaller width, the front side plate is provided with an air return opening 211, the rear side plate is provided with an upper air outlet 212 and a lower air outlet 213 which are sequentially arranged along the height direction of the shell 210, and front air return and rear air outlet are realized.

The inner cavity of the shell 210 comprises a first installation area 214 and a second installation area 215 which are sequentially arranged and communicated along the front-back direction of the shell 210, wherein the first installation area 214 is positioned at the front side of the second installation area 215 and is communicated with the air return opening 211, the second installation area 215 is divided into an upper installation area 215a and a lower installation area 215b which are arranged along the height direction of the shell 210, the upper installation area 215a and the lower installation area 215b are vertically separated by an air duct baffle 216 which is fixedly arranged in the second installation area 215, the upper air outlet 212 corresponds to the upper installation area 215a, and the lower air outlet 213 corresponds to the lower installation area 215 b;

The direct cooling temperature control module adopts refrigerant phase change to exchange heat with the battery to realize temperature regulation of the battery, and at least comprises a compressor 230, a heat exchanger 250 and a heat regenerator 240, wherein the compressor 230 is arranged in the first installation area 214, and the heat exchanger 250 is arranged in the lower installation area 215 b.

The liquid cooling temperature control module adopts cooling liquid to exchange heat with the PCS of the battery to realize the temperature regulation of the PCS of the battery, and at least comprises a water pump 260, an expansion tank 270 and a cooler 280, wherein the water pump 260 and the expansion tank 270 are arranged in the first installation area 214, and the cooler 280 is arranged in the upper installation area 215 a.

The direct cooling plate 300 is disposed in the battery compartment 120, and is used for performing heat exchange with the battery, and a refrigerant channel is formed in the direct cooling plate 300. The compressor 230, the heat exchanger 250, the regenerator 240 and the direct cooling plate 300 are sequentially connected through pipes to form a refrigerant circulation loop, and throttle devices, respectively called a first electronic expansion valve 500 and a second electronic expansion valve 600, are arranged at the inlet and the outlet of the direct cooling plate 300, and the refrigerant in the refrigerant circulation loop flows through the direct cooling plate 300 to exchange heat with the battery.

The liquid cooling plate 400 is disposed in the battery compartment 120 and is used for performing heat exchange with the battery PCS, and a cooling liquid flow channel is formed in the liquid cooling plate 400. The water pump 260, the expansion tank 270, the cooler 280, and the liquid cooling plate 400 are connected to form a liquid circulation circuit.

The air return port 211 is specifically disposed on a front side plate of the housing 210, and a direct cooling pipeline interface 21100, a liquid cooling pipeline interface 21110 and a junction box 21120 are further disposed on the front side plate of the housing 210, so as to facilitate connection and connection operation. The direct cooling pipe interface 21100 is located above the air return 211, and the liquid cooling pipe interface 21110 and the junction box 21120 are located below the air return 211, so as to fully utilize the space of the front side plate.

The energy storage cabinet air conditioning unit 200 in some embodiments of the present application integrates the main structural components of the liquid cooling temperature control module and the direct cooling temperature control module, and partitions the inner cavity of the housing 210 to reasonably install and arrange each structural component of the liquid cooling temperature control module and the direct cooling temperature control module and the electric control box, so that the unit has a compact internal structure, and the cooler 280 and the heat exchanger 250 with larger height and larger volume are respectively arranged in the upper installation area 215a and the lower installation area 215b which are separated from each other, so as to form the vertical air conditioning unit 200, fully utilize the height space of the second installation area 215 to install, reduce the occupation of the transverse and longitudinal spaces, and reasonably arrange and install the compressor 230, the water pump 260 and the expansion tank 270 in the first installation area 214, so that the volume of the whole unit is reduced, and the battery installation space in the energy storage cabinet in some embodiments of the present application is relatively increased, and the battery capacity of the energy storage cabinet is improved.

The liquid cooling temperature control module and the direct cooling temperature control module are integrated in one air conditioning unit 200, so that the whole air conditioning unit is convenient to disassemble and assemble or maintain, and the direct cooling pipeline and the liquid cooling pipeline layout are simplified.

In the conventional junction box 21120 structure, the wiring plug 21130 is generally horizontally arranged, that is, the axis is horizontal, a horizontal plugging scheme is adopted, the plug is exposed outside after the wiring is plugged, and the unplugged connector is leaked outside, so that the risk of water inflow exists. To solve this problem, in some embodiments of the present application, as shown in fig. 4 to 6, 8, and 14 to 18, the junction box 21120 includes a box main body 21121 and a plug mounting plate 21122, the box main body 21121 is in a box body shape with only the bottom open, the plug mounting plate 21122 is provided inside the box main body 21121, covered by the box main body 21121 from above, and the box main body 21121 functions as a waterproof cover, ensuring waterproof reliability at the junction.

The front side plate of the housing 210 is formed with a penetration portion in which the junction box 21120 is inserted, so that the box main body 21121 is divided into a rear portion of the box main body 21121 protruding into the installation space of the housing 210 and a front portion of the box main body 21121 exposed outside the front side plate, and accordingly, the plug mounting plate 21122 is also divided into a rear portion of the plug mounting plate 21122 located in the installation space of the housing 210 and a front portion of the plug mounting plate 21122 located in the front side plate, to facilitate connection of the internal electric components of the housing 210 (such as the electric box 220) to the wiring of the junction box 21120, and connection of the junction box 21120 to the external electric components of the unit (such as the power supply).

In some embodiments of the present application, as shown in fig. 14 to 18, the through portion is a rectangular hole, the horizontal section of the main body 21121 of the box is rectangular, and the main body comprises a top plate, two opposite vertical side plates and two opposite vertical end plates, wherein the top plate comprises a horizontal top plate portion and two inclined top plate portions positioned below two sides of the horizontal top plate portion, and the two inclined top plate portions are connected with the horizontal top plate portion and the two vertical side plates, so that the main body 21121 of the box is approximately umbrella-shaped, and is effectively waterproof, water-guiding and dust-proof.

The four sides of the plug mounting plate 21122 are provided with mounting and fixing holes for mounting and fixing the box main body 21121, the inner wall of the box main body 21121 is correspondingly provided with horizontal flanging fixedly connected with the four corners of the mounting plate, and the horizontal flanging can also play a limiting role for mounting the plug mounting plate 21122.

The two vertical end plates of the box main body 21121 are provided with mounting lugs 21123, the junction box 21120 is mounted on the front side plate of the shell 210 through the mounting lugs 21123, and the mounting lugs 21123 are attached to the inner side surface of the front side plate, so that hidden mounting is realized.

Junction box 21120 is specifically located below air return port 211 and above bottom plate 21140 of housing 210, preventing water dripping thereon from entering air return port 211.

In some embodiments of the application, a wiring plug 21130 is mounted on the front portion of the plug mounting plate 21122 to facilitate wiring operations from outside the unit. The wiring plug 21130 is an aviation waterproof plug, so that waterproof reliability is improved.

In some embodiments of the present application, the plug mounting plate 21122 is disposed horizontally and the wiring plug 21130 is disposed vertically downward to realize wiring in the up-down direction, further ensuring waterproof reliability.

The plug mounting plate 21122 and the box main body 21121 enclose a wiring space above the plug mounting plate 21122, and a threading hole 21122a is formed in the rear portion of the plug mounting plate 21122, and the wiring plug 21130 is wired into the mounting space in the housing 210 through the wiring space and the threading hole 21122a, that is, wired into the housing 210 through the space above the interior of the box main body 21121, so as to connect the electrical box 220, further avoiding the exposure of the wiring, and improving the waterproof reliability.

The bottom plate of the electrical box 220 is located at a height higher than that of the junction box 21120, and a threading hole 21122a is formed in the bottom plate of the electrical box 220 so as to be connected with the junction box 21120 by a wire.

Referring to fig. 19, for the vertically-placed prolate square air conditioning unit 200, a front side plate of a housing 210 thereof has a rectangular shape, and two opposite vertical sides thereof have a large length, and in some embodiments of the present application, the two opposite vertical sides thereof are respectively formed with a first-stage folded edge a bent backward by 90 °, the first-stage folded edge a further having a second-stage folded edge b parallel to the first-stage folded edge a, the second-stage folded edge b being located at a rear side of the first-stage folded edge a in a front-rear direction, and the second-stage folded edge b being located inside the first-stage folded edge a in a left-right direction. Namely, the front side plate of the shell 210 of the air conditioner unit 200 is bent twice, so that the structural strength of the shell 210 is enhanced, the joint between the front side plate and the connecting parts of the adjacent left and right side plates can be ensured, and the sealing performance of the joint of the shell 210 is improved.

In some embodiments of the present application, the cooler 280 is disposed obliquely, the heat exchanger 250 is disposed obliquely, and the inclination directions of the cooler 280 and the heat exchanger 250 are consistent, which is also beneficial to reducing space occupation and making the unit compact.

In some embodiments of the present application, referring to fig. 5 to 7, fig. 9, fig. 10 and fig. 12, a liquid cooling heat dissipation fan 290 is further disposed in the upper mounting area 215a, the liquid cooling heat dissipation fan 290 is located at the rear side of the cooler 280 and near the upper air outlet 212, the air inlet of the liquid cooling heat dissipation fan 290 faces the leeward side of the cooler 280, a direct cooling heat dissipation fan 2100 is further disposed in the lower mounting area 215b, the direct cooling heat dissipation fan 2100 is located at the rear side of the heat exchanger 250 and near the lower air outlet 213, and the air inlet of the direct cooling heat dissipation fan 2100 faces the leeward side of the heat exchanger 250.

The liquid cooling heat dissipation fan 290 and the direct cooling heat dissipation fan 2100 provide air circulation power, external air enters the first installation area 214 through the air return opening 211 under the action of the heat dissipation fan, then flows through the upper installation area 215a from the first installation area 214 and flows through the lower installation area 215b from the first installation area 214 under the action of the liquid cooling heat dissipation fan 290 and the direct cooling heat dissipation fan 2100, finally flows out from the upper air outlet 212 and the lower air outlet 213 respectively, and takes away heat on the cooler and heat on the heat exchanger 250.

Because the second installation area 215 is communicated with the first installation area 214, the first installation area 214 is communicated with the air return port 211, and the upper installation area 215a and the lower installation area 215b are vertically separated by the air duct partition plate 216, so that the air duct is mutually independent on the basis that the liquid cooling temperature control module and the direct cooling temperature control module share an air return space, and the mutual influence of wind fields is avoided, so that the battery and the battery PCS are in respective proper temperature ranges.

In some embodiments of the present application, the liquid cooling fan 290 is mounted in the upper mounting area 215a by a liquid cooling fan mounting assembly, which is fixedly mounted on the air duct partition 216 and includes a front liquid cooling fan partition 2110 and a rear liquid cooling fan bracket 2120, wherein a through portion aligned and connected with the air suction end of the liquid cooling fan 290 is formed on the front liquid cooling fan partition 2110, the air suction end of the liquid cooling fan 290 is connected to the rear liquid cooling fan bracket 2120, and the liquid cooling fan 290 and the liquid cooling fan mounting assembly form a whole, thereby facilitating the whole assembly, disassembly and maintenance.

The number of the direct cooling fans 2100 is plural, and the direct cooling fans 2100 are disposed up and down in order along the height direction of the housing 210 to improve the air circulation power, and two direct cooling fans 2100 are illustrated in the figure as an example, but not limited to two.

The plurality of direct cooling heat dissipation fans 2100 are fixedly installed in the lower installation area 215b by adopting one direct cooling heat dissipation fan installation component, and the direct cooling heat dissipation fan installation component is integrally and fixedly installed on the bottom plate 21140 of the shell 210, so that deformation errors caused by long-term operation can be avoided by floor type installation, and the reliability and the stability are good. The plurality of direct cooling heat dissipation fans 2100 are integrally installed through the same direct cooling heat dissipation fan installation assembly, and are convenient to assemble, disassemble and maintain.

The direct cooling temperature control module corresponds to a multi-fan system, the liquid cooling temperature control module corresponds to a single-fan system, the number of fans is large, the air quantity is greatly improved, and the temperature control rate of the battery and the PCS is improved.

In some embodiments of the present application, the direct-cooling heat dissipation fan mounting assembly includes a front direct-cooling heat dissipation fan partition 2130 and a rear direct-cooling heat dissipation fan bracket 2140, wherein through portions in one-to-one aligned connection with the air suction ends of the plurality of direct-cooling heat dissipation fans 2100 are formed on the front direct-cooling heat dissipation fan partition 2130, and the air suction ends of the plurality of direct-cooling heat dissipation fans 2100 are connected to the rear direct-cooling heat dissipation fan bracket 2140. The front side liquid cooling fan separator 2110 is vertically arranged, the bottom end of the front side liquid cooling fan separator 2110 is fixedly connected to the air duct separator 216, and the top end of the front side liquid cooling fan separator is fixedly connected with the top plate of the shell 210, so that the structural strength and the stability are enhanced.

The rear side liquid cooling fan bracket 2120 comprises an upper horizontal supporting part 2121, a lower horizontal supporting part 2122 and a vertical supporting part 2123, wherein the upper horizontal supporting part 2121 and the lower horizontal supporting part 2122 are respectively fixedly connected to the top end and the bottom end of the vertical supporting part 2123, so that the rear side liquid cooling fan bracket 2120 is a U-shaped frame with a forward opening, the opening end of the U-shaped frame is fixedly connected to the front side liquid cooling fan baffle 2110, the rear side liquid cooling fan 290 and the front side liquid cooling fan baffle 2110 can be firmly connected into a whole, the structural strength and the stability of the liquid cooling fan installation assembly are enhanced, and the working stability of the liquid cooling fan 290 is ensured.

In some embodiments of the present application, the bottom end of the vertical support 2123 is fixed on the air duct partition plate 216 through a sheet metal reinforced base 2124, and the sheet metal reinforced base 2124 supplements and supports the liquid cooling fan 290 and the rear liquid cooling fan support 2120, so as to avoid deformation of the support caused by long-time operation of the liquid cooling fan 290.

The sheet metal reinforced base 2124 may be integrally connected to the bottom end of the vertical support 2123 and the air channel partition 216 by welding.

Similarly, sheet metal reinforcement members are additionally arranged at four corners of two ends of a connection part of the vertical support part 2123 and the upper horizontal support part 2121 and two ends of a connection part of the vertical support part 2123 and the lower horizontal support part 2122, so that the structural strength of the whole rear side liquid cooling heat dissipation fan bracket 2120 is further improved. The sheet metal reinforcement and the vertical support 2123, the upper horizontal support 2121 and the lower horizontal support 2122 can be connected and fixed by welding.

In some embodiments of the present application, the upper horizontal support 2121, the vertical support 2123 and the lower horizontal support 2122 are respectively formed with a plurality of air outlet avoidance holes 2150, and the air outlet avoidance holes 2150 on the vertical support 2123 are distributed above and below the liquid cooling heat dissipation fan 290, so that the air outlet resistance can be reduced by the air outlet avoidance holes 2150, and the air outlet space and the air outlet volume are ensured.

In some embodiments of the present application, the rear liquid-cooled heat dissipation fan bracket 2120 is a metal piece with an integral structure, which further enhances the structural strength thereof.

The upper horizontal support portion 2121 has a bent edge 2160 formed by bending upward formed around the upper horizontal support portion 2121, the lower horizontal support portion 2122 has a bent edge 2160 formed by bending downward formed around the lower horizontal support portion 2122, and the two opposite vertical sides of the vertical support portion 2123 have bent edges 2160 formed by bending backward formed around the vertical side. The bent edge 2160 can increase the supporting strength of the rear side liquid cooling fan bracket 2120, and meanwhile, the bent edge 2160 is not arranged in the fan installation space surrounded by the front side liquid cooling fan partition 2110 and the rear side liquid cooling fan bracket 2120, so that wind resistance can be reduced, and improvement of a wind field is facilitated.

The front side liquid cooling fan separator 2110 is of an integrated structure, and the periphery of the front side liquid cooling fan separator 2110 is provided with a bending edge 2160 which is bent forward, and likewise, the bending edge 2160 can enhance the supporting strength of the front side liquid cooling fan separator 2110, and the bending edge 2160 is not in the fan installation space surrounded by the front side liquid cooling fan separator 2110 and the rear side liquid cooling fan bracket 2120, so that the wind resistance can be reduced, and the wind field can be improved.

In some embodiments of the present application, for the direct cooling fan installation component, the front side direct cooling fan partition 2130 is vertically disposed, the bottom end of the front side direct cooling fan partition 2130 is fixedly connected to the bottom plate 21140 of the housing 210, the top end is formed with a horizontal fixing portion 2131 that is horizontally bent backward, the horizontal fixing portion 2131 is fixedly connected to the air duct partition 216, the horizontal fixing portion 2131 is specifically in a horizontal plate shape, and is adhered and fixed to the bottom surface of the air duct partition 216, and has a large supporting surface and high supporting strength. The periphery of the horizontal fixing portion 2131 is formed with a bent edge 2160 bent downward, further enhancing the support strength of the horizontal fixing portion 2131 and the mounting stability of the front side direct cooling fan separator 2130.

The rear side direct cooling fan bracket 2140 is vertically disposed, and has a bottom end fixedly connected to the bottom plate 21140 of the housing 210 and a top end fixedly connected to the corresponding side bent edge 2160 of the horizontal fixing portion 2131.

In some embodiments of the present application, the front side direct cooling fan separator 2130 is an integral structure with two opposite vertical sides formed with a bent edge 2160 formed by bending forward, and the rear side direct cooling fan bracket 2140 is an integral structure with a bent edge 2160 formed by bending backward. The bent edge 2160 can enhance the structural strength of the front side direct-cooling heat dissipation fan partition 2130 and the rear side direct-cooling heat dissipation fan bracket 2140, and the bent edge 2160 is not in the installation space of the direct-cooling heat dissipation fan 2100 surrounded by the front side direct-cooling heat dissipation fan partition 2130 and the rear side direct-cooling heat dissipation fan bracket 2140, so that wind resistance can be reduced, and the wind field can be improved.

A plurality of air outlet avoidance holes 2150 are also formed on the rear side direct-cooling heat dissipation fan support 2140, and are distributed above the uppermost direct-cooling heat dissipation fan 2100, below the lowermost direct-cooling heat dissipation fan 2100, and between two adjacent direct-cooling heat dissipation fans 2100. The hole 2150 is dodged to the air-out can avoid direct-cooled cooling fan 2100 air-out to receive direct-cooled cooling fan 2100 installation component's influence, and hole 2150 and fan mounted position interval design are dodged to the air-out, can increase the furthest and dodge the hole size, increase the air-out volume.

The periphery of the air outlet avoidance hole 2150 can be provided with a bending edge which is bent outwards, so that the structural strength is enhanced, the wind resistance is reduced, and the wind field is improved.

In some embodiments of the present application, the casing 210 includes an inner frame 217 and a housing 218 covering the outer side of the frame 217, the frame 217 is formed by interconnecting a plurality of cross beams and a plurality of vertical beams, the housing 218 includes a top plate, a bottom plate 21140, a front side plate, a rear side plate, a left side plate and a right side plate, which are respectively used as the top plate, the bottom plate 21140, the front side plate, the rear side plate, the left side plate and the right side plate of the casing 210, the return air inlet 211 of the air conditioning unit 200 is disposed on the front side plate of the housing 218, and the upper air outlet 212 and the lower air outlet 213 are disposed on the rear side plate of the housing 218.

The frame 217 is a framework part of the shell 210 and plays a main supporting role, the shell 218 is a covering on the periphery of the frame 217, the positions of the return air inlet 211 and the air outlet are communicated and are provided with grids, and the whole shell 210 has high structural strength.

The electrical box 220 is located in the first installation area 214, near the air return port 211, and on the side plate of the housing 210 opposite to the windward side of the cooler 280, and in the obliquely installed state of the cooler 280 and the heat exchanger 250 as shown in fig. 6, the electrical box 220 is disposed on the right side plate of the housing 210, so as to be spaced from the windward sides of the cooler 280 and the heat exchanger 250 as far as possible, and avoid blocking the return air.

Specifically, the electrical box 220 is vertically installed on the frame 217, the electrical box 220 is covered towards the right side plate of the housing 210, the right side plate of the housing 210 is composed of a detachable first side plate and a detachable second side plate, the first side plate is opposite to the electrical box 220, the electrical box 220 is detachable, the first side plate can serve as a maintenance plate of the electrical box 220, when maintenance or repair is needed, the first side plate can be detached, and then the electrical box 220 cover is detached, as shown in fig. 13, the related operation can be performed on the electrical devices inside the electrical box 220.

The detachable structure of the first side plate can be a screw connection structure or a buckle connection structure and the like.

As shown in fig. 5, 6 and 9, in some embodiments of the application, the electrical box 220 is provided with a radiator in the return air flow path. The heat generated by the operation of the electrical box 220 can be taken away, and the operation reliability of the electrical box 220 is ensured.

In some embodiments of the present application, as shown in fig. 6, the first mounting area 214 has an extension area 219 extending backward, the extension area 219 extends to the windward side of the cooler 280 and the heat exchanger 250, and the compressor 230 is disposed on the bottom plate 21140 of the housing 210 and is located in the extension area 219, so that the side space of the cooler 280 and the heat exchanger 250 is fully utilized, and the structure is further compact, and space occupation is reduced.

The water pump 260 is disposed on the bottom plate 21140 of the housing 210, and near the return air port 211, and the expansion tank 270 is located above the water pump 260. The expansion tank 270 is located above the water pump 260, so that the water path connection between the expansion tank 270 and the water pump 260 is facilitated, and the installation space above the water pump 260 is fully utilized.

In some embodiments of the present application, the return air ports 211 are configured in a removable configuration to facilitate field unit operation and maintenance. Specifically, the air return port 211 is adapted to be provided with a detachable air return grille 2170, the bottom end of the air return grille 2170 is clamped with the bottom wall of the air return port 211, and the top end of the air return grille 2170 is magnetically attracted with the top wall of the air return port 211.

Fig. 14 and 16 are schematic diagrams of the front part of the unit corresponding to the detached return air grille 2170, wherein the top wall of the return air inlet 211 is provided with a vertical flange turned down, the vertical flange extends in the left-right width direction of the return air inlet 211 to form a strip shape, a magnet 2180 is mounted on the outer side surface of the vertical flange, the bottom wall of the return air inlet 211 is provided with a horizontal flange turned inwards and horizontally, the horizontal flange extends in the left-right width direction of the return air inlet 211 to form a strip shape, and two clamping holes 2190 are formed in the horizontal flange, as shown in fig. 16.

Correspondingly, the air return grille 2170 is made of metal, the bottom surface of the air return grille 2170 is provided with two buckles protruding downwards, the buckles are in clamping fit with the clamping holes 2190, and the inner side surface of the top edge of the air return grille 2170 is attracted with the magnet 2180, so that the air return grille 2170 is detachably arranged on the air return opening 211.

In some embodiments of the present application, the compressor 230, the heat exchanger 250 and the direct cooling fan 2100 are installed on the bottom plate 21140 of the housing 210, the lower air outlet 213 is opposite to the area where the direct cooling fan 2100 is located, the cooler 280 is located directly above the heat exchanger 250, the liquid cooling fan 290 is located directly above the direct cooling fan 2100, and the upper air outlet 212 is opposite to the area where the liquid cooling fan 290 is located, so as to fully and reasonably utilize the internal space of the housing 210.

For the conventional air conditioning unit, the bottom plate of the shell only plays a role of bottom support and sealing, however, for the energy storage cabinet air conditioning unit 200 in the embodiment of the application, since the direct cooling temperature control system and the liquid cooling temperature control system are integrated, the cooling liquid of the liquid cooling temperature control system usually adopts ethylene glycol, and most structural members of the liquid cooling temperature control system are in the upper mounting area 215a of the second mounting area 215, and there is a risk of liquid leakage at the water pump 260, the pipeline connection and the like in the unit. If leakage occurs, the working reliability of the unit is affected.

To solve this problem, in some embodiments of the present application, referring to fig. 20 and 21, the bottom plate 21140 has a rectangular disk shape opened upward, and a drain nozzle 21141 is provided on one of the side walls of the bottom plate 21140 for externally connecting a drain pipe to collect the leaked liquid and drain the leaked liquid out of the tank.

The bottom wall of the bottom plate 21140 is provided with a water pump installation position 21142, a press installation position 21143, a heat exchanger installation position 21144 and a direct cooling heat dissipation fan installation position 21145 at intervals along the front-rear direction, the water pump installation position 21142, the press installation position 21143, the heat exchanger installation position 21144 and the direct cooling heat dissipation fan installation position 21145 are respectively provided with a horizontal installation top plate, the water pump 260, the compressor 230, the heat exchanger 250 and the direct cooling heat dissipation fan 2100 are respectively correspondingly installed, and the height position of the horizontal installation top plate is higher than the height position of the drain nozzle 21141 so as to prevent the water pump 260, the compressor 230, the heat exchanger 250 and the direct cooling heat dissipation fan 2100 from contacting the accumulated water in the bottom plate 21140 as much as possible.

In some embodiments of the application, a drain 21141 is provided on the front side wall of the base 21140 to facilitate opening the cabinet door 130 to circumscribe a drain pipe at the cabinet opening. The water pump mounting position 21142, the press mounting position 21143, the heat exchanger mounting position 21144 and the direct cooling heat dissipation fan mounting position 21145 are sequentially arranged from front to back, and correspondingly, the water pump 260, the compressor 230, the heat exchanger 250 and the direct cooling heat dissipation fan 2100 are sequentially arranged from front to back so as to be fully and reasonably arranged on the bottom plate 21140, and the stability of the gravity center of the unit is ensured.

The water pump mounting locations 21142 and the press mounting locations 21143 are located on the left and right sides of the bottom wall of the bottom plate 21140, respectively, to facilitate the plumbing of waterways and fluorine lines.

The heat exchanger mounting locations 21144 extend obliquely from the bottom wall left side of the bottom plate 21140 to the bottom wall right side of the bottom plate 21140, achieving oblique mounting of the heat exchanger 250 to save space.

The heat exchanger 250 is configured such that, after it is installed in place on the heat exchanger installation site 21144, the heat exchanger 250 exits the pipe toward the location of the compressor 230 for convenience of piping connection.

The direct-cooling heat dissipation blower mounting position 21145 is close to the rear side wall of the bottom plate 21140, so that the direct-cooling heat dissipation blower 2100 mounted in place is close to the lower air outlet 213, and heat dissipation capacity is improved.

The horizontal installation top plate of the direct cooling heat dissipation fan installation position 21145 extends from the left side of the bottom wall of the bottom plate 21140 to the right side of the bottom wall of the bottom plate 21140, namely, the width of the horizontal installation top plate of the direct cooling heat dissipation fan installation position 21145 is similar to the width of the bottom plate 21140, so that the area of the horizontal installation top plate is as large as possible, the direct cooling heat dissipation fan 2100 and the bottom plate 21140, namely, an overhead direct cooling fan, can be fully isolated, and when liquid leakage exists in a base, the direct cooling heat dissipation fan 2100 does not blow out cooling liquid in the base out of a unit and enter the cabinet body 100, and liquid feeding of an energy storage system is caused.

Referring to fig. 22, in combination with fig. 21, the direct cooling fan mounting position 21145 further includes a circumferential side plate bent downward relative to the horizontal mounting top plate thereof, wherein a part of the side plates a21145a in the circumferential side plate is fixedly connected with the bottom wall of the bottom plate 21140, and a gap is formed between the other part of the side plates B21145B and the bottom wall of the bottom plate 21140, so as to form a liquid flow gap 21145c. That is, the lower part of the direct cooling heat dissipation fan installation position 21145 is of an open design, so that water leaked in the bottom plate 21140 can smoothly flow to the drain nozzle 21141, and water storage in the inside is avoided.

As shown in fig. 22, in the circumferential side plates of the direct-cooling heat radiation fan mounting position 21145, the height of one pair of opposite side plates, namely side plate a21145a, is higher than the height of the other pair of opposite side plates, namely side plate B21145B, so that when the direct-cooling heat radiation fan mounting position 21145 is mounted on the bottom plate 21140, the pair of opposite side plates B21145B with smaller height and the bottom wall of the bottom plate 21140 form the liquid flowing gap 21145c, and the lower open design of the direct-cooling heat radiation fan mounting position 21145 is realized.

As shown in fig. 22, the water pump mounting position 21142, the press mounting position 21143 and the heat exchanger mounting position 21144 are also formed by fixing bent plate-shaped members on the bottom wall of the bottom plate 21140, the cross section of the bent plate-shaped members is in an inverted U shape, and two side edges of the inverted U shape are provided with horizontal flanges so as to be attached to the bottom wall of the bottom plate 21140, so that the mounting stability of each mounting position is ensured.

In some embodiments of the application, the height of the bottom plate 21140 is increased to 50-70mm, compared with the height of the base of a traditional unit, which is 20-30mm, by increasing the height of the bottom plate 21140, the design bearing space of the bottom plate 21140 can be increased, the water-proof drainage is ensured, and the external water is prevented from entering the unit through the base.

In some embodiments of the present application, the peripheral side walls of the bottom plate 21140 are formed by bending the peripheral edges of the bottom wall of the bottom plate 21140 upwards, and the seams of the peripheral side walls of the bottom plate 21140 are fully welded to improve the sealing performance.

As shown in fig. 20 and 21, the top edges of the peripheral side walls of the bottom plate 21140 are each inwardly pressed with an L-shaped folded edge 21146, and the front, rear, left and right side plates of the housing 210 are respectively supported on the horizontal portions of the L-shaped folded edge 21146, and the vertical portions of the L-shaped folded edge 21146 are respectively bonded to the inner wall bottoms of the front, rear, left and right side plates of the housing 210. That is, the front side plate, the rear side plate, the left side plate and the right side plate of the housing 210 are not directly attached to the peripheral side walls of the bottom plate 21140, but attached by forming the L-shaped bending edges 21146, so that the attaching gap between the peripheral side walls of the bottom plate 21140 and the peripheral side plate of the housing 210 is L-shaped, and the effusion in the bottom plate 21140 can be effectively prevented from flowing out through the attaching gap, and the energy storage system is caused to enter the cooling liquid.

In some embodiments of the present application, an energy storage cabinet air conditioning unit is disposed in a vertical posture in an air conditioning cabinet 110, and includes a housing 210, a direct cooling temperature control module, and a liquid cooling temperature control module.

In some embodiments of the application, the cooler is an air cooler.

FIG. 24 is a schematic diagram of a system of an energy storage cabinet air conditioning unit including a direct cooling temperature control system and a liquid cooling temperature control system according to some embodiments.

The direct cooling temperature control system is used for controlling the temperature of a battery of the energy storage cabinet and comprises a direct cooling temperature control component, wherein the direct cooling temperature control component comprises a compressor 230, a four-way valve 700, a heat exchanger 250, a heat regenerator 240 and a direct cooling heat dissipation fan 2100, the compressor 230, the four-way valve 700, the heat exchanger 250 and the heat regenerator 240 are communicated to form a refrigerant circulation loop, a plurality of direct cooling parallel branches 1500 are connected between two channels of the heat regenerator 240, each direct cooling parallel branch 1500 is connected with a direct cooling plate 300, a first electronic expansion valve 500 and a second electronic expansion valve 600 which are respectively arranged at an inlet and an outlet of the direct cooling plate 300, and a first direct cooling temperature sensor 800 and a second direct cooling temperature sensor 900 are respectively arranged at the inlet and the outlet of the direct cooling plate 300;

The liquid cooling temperature control system is used for controlling the temperature of the PCS of the energy storage cabinet and comprises a liquid cooling temperature control component, the liquid cooling temperature control component comprises a cooler 280 (namely an air cooler), a water pump 260 and a liquid cooling heat dissipation fan 290, the water pump 260 is communicated with the air cooler to form a cooling liquid circulation loop, a liquid cooling pipeline 1600 is connected between a water inlet of the water pump 260 and a water outlet of the air cooler, a liquid cooling plate 400 is connected to the liquid cooling pipeline 1600, a first liquid cooling temperature sensor 1000 and a second liquid cooling temperature sensor 1100 are respectively arranged at an inlet and an outlet of the PCS liquid cooling plate 400, and the liquid cooling plate 400 and the PCS are correspondingly arranged to be capable of carrying out heat exchange with the PCS.

The liquid cooling temperature control system further comprises an electromagnetic water valve 1400, wherein the electromagnetic water valve 1400 is connected between the water pump 260 and an outlet of the air cooler through a pipeline, specifically, one end of the pipeline is connected to the pipeline between the water flow control valve 1300 and the liquid cooling electric heater 1200, and the other end of the pipeline is connected between the outlet of the air cooler and the inlet of the liquid cooling plate 400.

When the temperature of the battery is too high, the refrigerant is compressed into high-temperature and high-pressure gas through the compressor 230, is returned through the oil separator 1700, the filter 1800 and the oil return capillary tube 1900, is subjected to oil return, passes through the four-way valve 700 to the heat exchanger 250, is subjected to condensation and heat dissipation through the direct-current heat dissipation fan 2100, becomes a medium-temperature and high-pressure liquid refrigerant, enters the first channel of the heat regenerator 240, further supercools through the heat regenerator 240, enters the plurality of direct-cooling parallel branches 1500, is fully opened through the first electronic expansion valve 500 at the inlet of the direct-cooling plate 300, exchanges heat through the direct-cooling plate 300, cools the battery, is throttled into a low-temperature and low-pressure gas-liquid two-phase refrigerant through the second electronic expansion valve 600 at the outlet of the direct-cooling plate 300, enters the second channel of the heat regenerator 240, is overheated into a gaseous refrigerant through the heat accumulator 11000, and returns to the compressor 230, and the refrigeration cycle is completed.

When the temperature of the battery is too low, the refrigerant is compressed into high-temperature high-pressure gas through the compressor 230 and is returned through the oil separator 1700, the filter 1800 and the oil return capillary tube 1900, the four-way valve 700 is electrified and commutated, the high-temperature high-pressure refrigerant enters the second channel of the heat regenerator 240, passes through the heat regenerator 240, reaches the second electronic expansion valve 600, the second electronic expansion valve 600 is fully opened, the high-temperature refrigerant heats the battery in the direct cooling plate 300, then enters the first electronic expansion valve 500 to be throttled into low-temperature low-pressure gas-liquid two-phase refrigerant, enters the first channel of the heat regenerator 240, is evaporated in the heat exchanger 250 after passing through the heat regenerator 240, and returns to the compressor 230 through the liquid accumulator 11000, so that the heating cycle is completed.

When the temperature of the PCS is too high, the electromagnetic water valve 1400 is closed, the water flow regulating valve 1300 is opened, the circulating water pump 260 sends cooling liquid into the air cooler, the liquid cooling heat dissipation fan 290 is started to enable the high-temperature cooling liquid to exchange heat with air, and the cooling liquid is sent into the liquid cooling plate 400 to cool the PCS.

When the PCS temperature is too low, the electromagnetic water valve 1400 is opened, the water flow regulating valve 1300 is closed, the cooling liquid does not enter the air cooler for cooling, and the cooling liquid is judged to be heated by the electric heating 1200 according to the temperatures measured by the first liquid cooling temperature sensor 1000 and the second liquid cooling temperature sensor 1100, and then is sent to the liquid cooling plate 400 for heating the PCS.

When the coolant electric heater 1200 is turned on, the electromagnetic water valve 1400 is turned on, the water flow regulating valve 1300 is turned on, the flow of the water flow regulating valve 1300 is controlled, the temperature of the coolant is controlled, when the return water temperature of the coolant is high, the water flow regulating valve 1300 is turned on, and the coolant is cooled by the air cooler in an auxiliary way, so that the proper temperature rise required by the PCS is achieved.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present utility model should be included in the scope of the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims

1. An energy storage cabinet air conditioning unit, comprising:

2. The energy storage cabinet air conditioning unit of claim 1, wherein,

The plug mounting plate is horizontally arranged, and the wiring plug is vertically downwards arranged so as to realize wiring in the up-down direction.

3. The energy storage cabinet air conditioning unit of claim 2 wherein,

The plug mounting plate and the box main body enclose a wiring space above the plug mounting plate, a threading hole is formed in the rear portion of the plug mounting plate, and the wiring plug passes through the wiring space and the threading hole to be wired in the mounting space.

4. An energy storage cabinet air conditioning unit according to claim 3, characterized in that,

The energy storage cabinet air conditioning unit further comprises an electric box which is located in the installation space and close to the air return opening, the height of the bottom plate of the electric box is higher than that of the junction box, and a threading hole is formed in the bottom plate of the electric box.

5. The energy storage cabinet air conditioning unit of claim 1, wherein,

The through part is a rectangular hole, the horizontal section of the box main body is rectangular, the box main body comprises a top plate, two opposite vertical side plates and two opposite vertical end plates, the top plate comprises a horizontal top plate part and two inclined top plate parts positioned below two sides of the horizontal top plate part, and the two inclined top plate parts are connected with the horizontal top plate part and the two vertical side plates.

6. The energy storage cabinet air conditioning unit of claim 5 wherein,

The two vertical end plates of the box main body are provided with mounting lugs, the junction box is mounted on the front side plate through the mounting lugs, and the mounting lugs are attached to the inner side surface of the front side plate.

7. The energy storage cabinet air conditioning unit of claim 1, wherein,

The junction box is located below the return air inlet and above the bottom plate of the shell.

8. The energy storage cabinet air conditioning unit of claim 1, wherein,

The front side plate is rectangular, two opposite vertical side edges of the front side plate are respectively provided with a first-stage bending edge bending backwards by 90 degrees, the first-stage bending edge is also provided with a second-stage bending edge, the second-stage bending edge is parallel to the first-stage bending edge, in the front-back direction, the second-stage bending edge is positioned at the rear side of the first-stage bending edge, and in the left-right direction, the second-stage bending edge is positioned at the inner side of the first-stage bending edge.

9. An energy storage cabinet air conditioning unit is characterized in that,

10. An energy storage cabinet, comprising:

An air conditioning unit which is an energy storage cabinet air conditioning unit according to any one of claims 1 to 9, wherein the energy storage cabinet air conditioning unit is installed in the air conditioning bin, the return air inlet is opposite to a front through hole of the air conditioning bin, and the upper air outlet and the lower air outlet are opposite to a rear through hole of the air conditioning bin;